Dell PowerEdge R720 manual

View a manual of the Dell PowerEdge R720 below. All manuals on ManualsCat.com can be viewed completely free of charge. By using the 'Select a language' button, you can choose the language of the manual you want to view.

  • Brand: Dell
  • Product: Server
  • Model/name: PowerEdge R720
  • Filetype: PDF
  • Available languages: English

Table of Contents

Page: 0
PowerEdge R720
and R720xd
Technical Guide
Built to run
complex workloads
using highly
scalable memory,
I/O capacity and
flexible network
options.
Page: 1
ii PowerEdge R720 and R720xd Technical Guide
This document is for informational purposes only. Dell reserves the right to make changes without further
notice to any products herein. The content provided is as is and without express or implied warranties of any
kind.
Dell, the DELL logo, PowerEdge, EqualLogic, PowerVault, OpenManage, KACE, and ReadyRails are trademarks
of Dell, Inc. Intel and Xeon are registered trademarks of Intel Corporation in the U.S. and other countries.
Microsoft, Windows, Windows Server, SQL Server, BitLocker, ActiveX, Internet Explorer, and Hyper-V are either
registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.
Novell and SUSE are registered trademarks of Novell, Inc. in the United States and other countries. IBM, Tivoli,
and Netcool are registered trademarks of IBM in the United States. AMD and combinations thereof, are
trademarks of Advanced Micro Devices, Inc. Other trademarks and trade names may be used in this document
to refer to either the entities claiming the marks and names or their products. Dell disclaims proprietary
interest in the marks and names of others.
©Copyright 2013 Dell Inc. All rights reserved. Reproduction or translation of any part of this work beyond that
permitted by U.S. copyright laws without the written permission of Dell Inc. is unlawful and strictly forbidden.
December 2013 | Version 6.0
Page: 2
iii PowerEdge R720 and R720xd Technical Guide
Table of contents
1 System overview................................................................................................................................................................. 6
Introduction........................................................................................................................................................................ 6
Key technologies ................................................................................................................................................................7
2 System features .................................................................................................................................................................. 9
Comparison of PowerEdge systems.............................................................................................................................. 9
Specifications ................................................................................................................................................................... 10
3 Chassis views and features..............................................................................................................................................13
Chassis views.....................................................................................................................................................................13
Chassis features ................................................................................................................................................................16
4 Processors .........................................................................................................................................................................20
Processor features...........................................................................................................................................................20
Supported processors......................................................................................................................................................21
GPU support ..................................................................................................................................................................... 22
Chipset............................................................................................................................................................................... 23
5 Memory.............................................................................................................................................................................. 24
Supported memory ......................................................................................................................................................... 24
Memory configurations .................................................................................................................................................. 25
Memory speed ................................................................................................................................................................. 25
Memory RAS features...................................................................................................................................................... 26
6 Storage............................................................................................................................................................................... 28
Internal storage................................................................................................................................................................ 28
External storage ...............................................................................................................................................................30
Storage controllers..........................................................................................................................................................30
Optical drives.................................................................................................................................................................... 32
Tape drives........................................................................................................................................................................ 32
7 Networking and PCIe ...................................................................................................................................................... 33
Select Network Adapters................................................................................................................................................ 33
PCIe expansion ................................................................................................................................................................ 35
8 Power, thermal, and acoustics ...................................................................................................................................... 38
Power consumption and energy efficiency................................................................................................................ 38
Power supply units .......................................................................................................................................................... 39
Thermal and acoustics....................................................................................................................................................40
9 Rack rails and cable management ................................................................................................................................ 43
Sliding and static rail systems........................................................................................................................................ 43
For detailed information about rail dimensions, see the..........................................................................................44
Cable management arm................................................................................................................................................. 45
10 Operating systems and virtualization ...........................................................................................................................46
Supported operating systems........................................................................................................................................46
Supported virtualization ................................................................................................................................................. 47
11 Dell OpenManage systems management....................................................................................................................48
Systems management solutions...................................................................................................................................48
OpenManage systems management ...........................................................................................................................49
Dell server management operations............................................................................................................................ 53
Appendix A. Additional specifications.......................................................................................................................... 56
Chassis dimensions ......................................................................................................................................................... 56
Chassis weight.................................................................................................................................................................. 56
Environmental specifications ........................................................................................................................................ 57
Power supply specifications .......................................................................................................................................... 58
Video specifications ........................................................................................................................................................ 58
Rack rail specifications ................................................................................................................................................... 59
Page: 3
iv PowerEdge R720 and R720xd Technical Guide
USB peripherals................................................................................................................................................................ 59
Appendix B. Standards compliance .............................................................................................................................60
Appendix C. Additional resources................................................................................................................................. 62
Appendix D. System board block diagram..................................................................................................................64
Tables
Table 1. Key technologies...................................................................................................................................................7
Table 2. Comparison of PowerEdge R710, R720 and R720xd .................................................................................... 9
Table 3. Technical specifications.................................................................................................................................... 10
Table 4. Chassis features...................................................................................................................................................16
Table 5. Security features..................................................................................................................................................19
Table 6. Supported processors ........................................................................................................................................21
Table 7. Memory technologies supported.................................................................................................................... 24
Table 8. DIMMs supported............................................................................................................................................... 25
Table 9. Memory speed capabilities............................................................................................................................... 26
Table 10. Memory RAS features ........................................................................................................................................ 26
Table 11. Chassis options................................................................................................................................................... 28
Table 12. Supported hard drives ....................................................................................................................................... 29
Table 13. Supported external storage device types.......................................................................................................30
Table 14. RAID controllers ..................................................................................................................................................31
Table 15. Supported Select Network Adapter options and features .......................................................................... 34
Table 16. PCIe expansion slots.......................................................................................................................................... 35
Table 17. Supported NICs and HBAs................................................................................................................................ 35
Table 18. Additional supported PCIe expansion cards ................................................................................................. 36
Table 19. Power tools and technologies......................................................................................................................... 38
Table 20. Power supply efficiency ....................................................................................................................................40
Table 21. R720 acoustical performance (2.5-inch chassis) ......................................................................................... 42
Table 22. R720xd acoustical performance (2.5-inch chassis) ..................................................................................... 42
Table 23. Supported rack rail system ...............................................................................................................................44
Table 24. Primary operating system support..................................................................................................................46
Table 25. Virtual guest operating system support ......................................................................................................... 47
Table 26. Virtualization support ........................................................................................................................................ 47
Table 27. iDRAC7 with Lifecycle Controller functions and benefits...........................................................................49
Table 28. Feature comparison for iDRAC7 Express and Enterprise............................................................................50
Table 29. One-to-one and one-to-many operations .................................................................................................. 54
Table 30. Chassis weight .................................................................................................................................................... 56
Table 31. Environmental specifications........................................................................................................................... 57
Table 32. Power supply specifications............................................................................................................................. 58
Table 33. Supported video modes.................................................................................................................................... 59
1. Rail adjustability ranges ............................................................................................................................................... 59
Table 34. Industry standard documents ..........................................................................................................................60
Table 35. Additional resources .......................................................................................................................................... 62
Figures
Figure 1. R720 front view (2.5” chassis with bezel)........................................................................................................13
Figure 2. R720 front view (2.5” chassis without bezel)..................................................................................................13
Figure 3. R720xd front view (with bezel) .........................................................................................................................14
Figure 4. R720xd front view (2.5-inch chassis without bezel) .....................................................................................14
Figure 5. R720 back view....................................................................................................................................................14
Figure 6. R720xd back view................................................................................................................................................15
Figure 7. R720 internal chassis view.................................................................................................................................15
Figure 8. R720xd internal chassis view.............................................................................................................................16
Figure 9. R720 LCD control panel.....................................................................................................................................17
Page: 4
v PowerEdge R720 and R720xd Technical Guide
Figure 10. R720xd LED panel ...............................................................................................................................................18
Figure 11. QRL code inside chassis.....................................................................................................................................18
Figure 12. Rack network daughter card (NDC)................................................................................................................ 33
Figure 13. 750W power supply unit ...................................................................................................................................40
Figure 14. Sliding rails with optional CMA ........................................................................................................................ 43
Figure 15. Static rails.............................................................................................................................................................44
Figure 16. Dell systems management solutions..............................................................................................................48
Figure 17. Systems management server lifecycle ........................................................................................................... 54
Figure 18. Chassis dimensions............................................................................................................................................ 56
Figure 19. R720 system board block diagram..................................................................................................................64
Figure 20. R720xd system board block diagram ............................................................................................................. 65
.
Page: 5
6 PowerEdge R720 and R720xd Technical Guide
1 System overview
Introduction
The Dell™ PowerEdge™ R720 and R720xd are Dell’s latest two-socket, 2U rack servers that are
designed to run complex workloads using highly scalable memory, I/O capacity, and flexible
network options. Both systems feature the Intel®
Xeon®
processor E5-2600 and E5-2600 v2
product families which offer up to 24 DIMMS, PCI Express®
(PCIe) 3.0-enabled expansion slots and a
choice of network interface card technologies.
The PowerEdge R720 is a general-purpose platform with highly expandable memory (up to 768GB)
and impressive I/O capabilities to match. The R720 can readily handle very demanding workloads,
such as data warehouses, e-commerce, virtual desktop infrastructure (VDI), databases and
high-performance computing (HPC).
In addition to the R720’s capabilities, the R720xd offers extraordinary storage capacity, making it well
suited for data-intensive applications that require storage and I/O performance, like medical imaging
and email servers.
Manage data overload
Keep pace with the explosion of data in the virtual age with the flexible I/O and storage capabilities
of the R720 and R720xd. The R720 supports up to sixteen internal hard drives to increase your
capacity, while optional hot-plug, front-access Express Flash PCIe solid-state drives (up to four)
enable performance-enhancing, in-box storage tiering.
The PowerEdge R720xd allows you to quickly access and process vast amounts of data with up to
twenty-six internal hot-plug hard disks. The R720xd is a great solution for any midsize or large
business that requires scalability in storage capacity.
Tailor your network fabric
The R720 and R720xd allow you to tailor your network throughput to match your application needs,
enabling added I/O performance. Dell’s Select Network Adapter options let you choose the right
network fabric without using up a valuable PCI slot. You can pick speed, technology, vendor and
other options, like switch independent partitioning which lets you share and manage bandwidth on
10GbE connections.
Virtualize more
Maximize your data center’s application capacity by expanding your virtual environment using the
large memory footprint of the R720 and R720xd. Choose an industry-leading hypervisor and take
advantage of our system management capability to manage both physical and virtual assets.
Redundant failsafe hypervisors can also help maximize your virtual machines’ uptime.
Dell OpenManage™ Integration Suite for Microsoft System Center and VMware vCenter for ESXi can
help you easily manage complex virtual environments.
Simplified systems management, without compromise
The Dell OpenManage systems management portfolio includes Integrated Dell Remote Access
Controller 7 (iDRAC7) with Lifecycle Controller. This embedded feature helps IT administrators
manage Dell servers in physical, virtual, local and remote environments, operating in-band or out-
of-band, with or without a systems management software agent installed.
Page: 6
7 PowerEdge R720 and R720xd Technical Guide
OpenManage iDRAC with Lifecycle Controller integrates and connects to leading third-party
systems management solutions (such as those from Microsoft, VMware and BMC Software), so users
can maintain a single point of control and capitalize on an existing systems management investment.
OpenManage simplifies the lifecycle of deploying, updating, monitoring, and maintaining Dell
PowerEdge servers.
Key technologies
Key technologies featured on the PowerEdge R720 and R720xd systems are detailed in Table 1.
Table 1. Key technologies
Key technologies Detailed descriptions
Intel Xeon
processor E5-2600
or E5-2600 v2
product families
Intel Xeon processor E5-2600 and E5-2600 v2 product families have advanced features
that deliver exceptional performance and value. See the Processors section for details.
Intel C600 series
chipset
The R720 and R720xd servers use the Intel Platform Controller Hub (PCH) chip.
1866MT/s DDR3
memory
Intel Xeon E5-2600 v2 processors support 1866MT/s memory. The R720 and R720xd
support two DIMMs per channel at 1866MT/s with these processors. See the Memory
section for details.
LRDIMM
This new memory option, load reduced DIMM (LRDIMM), is designed with a buffer chip
(or chips) to replace the register to help minimize loading. LRDIMMs can increase
overall server system memory capacity and speed. See the Memory section for more
information.
Flexible LOM
Dell’s Select Network Adapter options allow you to customize your LAN port
combinations from your choice of controller vendors. See the Networking and PCIe
section for details.
Next-generation
PERC options
The R720 and R720xd support new PERC controller cards with improved functionality
and faster performance. See the Storage section for details.
PERC S110 software
RAID solution
This new software RAID solution supports RAID 0, 1, 5 and 10 and supports a maximum
of four hot-plug SATA hard disk drives (HDD) or solid-state drives (SSD). See the Storage
section for details.
Express Flash drives
Dell Express Flash PCIe SSDs provide fast performance without requiring processor
resources or capturing DRAM. The R720 supports up to four Express Flash drives. The
R720xd does not support Express Flash drives.
iDRAC7 with
Lifecycle Controller
The new embedded system management solution for Dell servers features hardware
and firmware inventory and alerting, in-depth memory alerting, faster performance, a
dedicated gigabit port and many more features. See the Dell OpenManage systems
management section for details.
Internal GPU
support
The R720 supports internal graphics processing units (GPUs) for extreme computing
power to solve high performance computing (HPC) needs. The R720xd does not
support internal GPUs. See the Processors section for details.
Advanced power
management
The R720 and R720xd support advanced power monitoring and power capping tools
that can help manage power consumption.
Page: 7
8 PowerEdge R720 and R720xd Technical Guide
Key technologies Detailed descriptions
DC power supply A new 1100W DC power supply option is available for the R720 and R720xd.
Failsafe hypervisors
The internal dual SD module enables Dell's unique Failsafe Virtualization architecture,
ensuring uptime by providing failover capability for embedded hypervisors, such as
VMware
®
vSphere
®
ESXi™.
Fresh Air cooling
Dell has tested and validated an integrated data center solution that enables you to
operate at higher temperatures or even chiller-less. See the Power, thermal, and
acoustics section for details.
Page: 8
9 PowerEdge R720 and R720xd Technical Guide
2 System features
Compared to the previous generation of Dell PowerEdge servers, the R720 and R720xd have more
drive bay options, more PCIe slots, a larger memory footprint, flexible I/O, Express Flash PCIe
solid-state drives, and advanced system management. The R720 also supports optional dual internal
RAID controllers and up to four optional internal GPUs.
Comparison of PowerEdge systems
The PowerEdge R720 and R720xd are replacements for the predecessor R710 system, three systems
which are compared in Table 2. For the latest information on supported features, visit
Dell.com/PowerEdge.
Table 2. Comparison of PowerEdge R710, R720 and R720xd
Feature PowerEdge R710 PowerEdge R720 PowerEdge R720xd
Chassis 2U rack 2U rack 2U rack
Processors
Intel Xeon processors
5500 and 5600 series
Intel Xeon processor E5-
2600 or E5-2600 v2
product families
Intel Xeon processor E5-
2600 or E5-2600 v2
product families
Internal interconnect
Intel QuickPath
Interconnect
Intel QuickPath
Interconnect
Intel QuickPath
Interconnect
Memory
1
18 DDR3 RDIMM and
UDIMM
Up to 288GB
24 x DDR3 RDIMM,
UDIMM and LRDIMM
Up to 768GB
24 x DDR3 RDIMM,
UDIMM and LRDIMM
Up to 768GB
Hard drive bays
(hot plug)
Up to eight 2.5” or six
3.5”
Up to 16 2.5“ or eight
3.5”
Up to 24 2.5“+ two 2.5”
or 12 3.5” + two 2.5”
RAID controllers
PERC 6/i, SAS 6/iR,
PERC 6/E,
H200, H700, H800
PERC S110, H310, H710,
H710P, H810 (external);
supports multiple (2)
internal RAID controllers
PERC H310, H710,
H710P,
H810 (external)
PCIe slots 4 PCIe 2.0 6 PCIe 3.0 6 PCIe 3.0
Express Flash drives Not supported Up to 4 Not supported
Embedded NICs
4 1GbE with optional
TOE
Select Network Adapter:
minimum configuration
of 4 1Gb
Optional: 2 x 10GbE
Select Network Adapter:
minimum configuration
of 4 1Gb
Optional: 2 x 10GbE
Power supplies
Hot-plug, redundant
power supply units:
570W or 870W
Hot-plug, redundant
power supply units:
495W, 750W, 1100W,
1100W DC
Hot-plug, redundant
power supply units:
495W, 750W, 1100W, or
1100W DC
Power efficiency Gold Titanium Titanium
Page: 9
10 PowerEdge R720 and R720xd Technical Guide
Feature PowerEdge R710 PowerEdge R720 PowerEdge R720xd
Dell OpenManage
systems management
Dell OpenManage
Lifecycle Controller 1.x
iDRAC6 (Express or
Enterprise) with
Lifecycle Controller 1.x
OpenManage Essentials
OMSA Agent
OpenManage Power
Center (requires iDRAC7
Enterprise with Lifecycle
Controller)
OpenManage
Integrations and
Connections
iDRAC7 Express with
Lifecycle Controller
(standard option)
OpenManage Essentials
OMSA Agent
OpenManage Power
Center (requires iDRAC7
Enterprise with Lifecycle
Controller)
OpenManage
Integrations and
Connections
iDRAC7 Express with
Lifecycle Controller
(standard option)
Internal GPU Not supported
2 x 300W (double wide)
or
4 x 150W (single wide)
Not supported
Availability
Hot-plug drives
Hot-plug redundant
cooling
Hot-plug redundant
PSUs
Hot-plug drives
Hot-plug redundant
cooling
Hot-plug redundant
PSUs
Internal dual SD module
Hot-plug drives
Hot-plug redundant
cooling
Hot-plug redundant
PSUs
Internal dual SD module
1
GB means 1 billion bytes and TB means 1 trillion bytes; actual capacity varies with preloaded material and operating
environment and will be less.
Specifications
Table 3 lists the technical specifications for the PowerEdge R720 and R720xd systems. For the latest
information on supported features, visit Dell.com/PowerEdge.
Table 3. Technical specifications
Feature Specification
Form factor 2U rack
Processors Intel Xeon processor E5-2600 or E5-2600 v2 product families
Processor sockets 2 sockets
Internal interconnect 2 Intel QuickPath Interconnect (QPI) links; 6.4GT/s; 7.2GT/s; 8.0GT/s
Cache 2.5MB per core; core options: 4, 6, 8, 10, 12
Chipset Intel C602
Memory
1
Up to 768GB (24 DIMM slots): 2GB/4GB/8GB/16GB/32GB DDR3 up to 1866MT/s
PCIe slots
R720:
6 PCIe slots:
One x16 full-length, full-height
Three x8 full-length, full-height
R720xd:
6 PCIe slots:
Two x16 full-length, full-height
One x8 full-length, full-height
Page: 10
11 PowerEdge R720 and R720xd Technical Guide
Feature Specification
Three x8 half-length, half-height
One x16 full-length, full-height (optional)
Three x8 half-length, half-height
RAID controller
Internal controllers:
PERC S110 (software RAID; R720 only)
PERC H310
PERC H710
PERC H710P
External HBAs (RAID):
PERC H810
External HBAs (non-RAID):
6Gbps SAS HBA
LSI 9207-8i HBA
Hard drives
(hot-plug)
R720 drive bay options:
 Up to 16 x 2.5“
 Up to 8 x 2.5” + 8 x 2.5” (with dual RAID controllers)
 Up to 8 x 2.5”
 Up to 8 x 2.5” + 4 x 2.5” Express Flash
 Up to 8 x 3.5”
R720xd drive bay options:
 Up to 24 x 2.5” (front) + 2 x 2.5” (back)
 Up to 12 x 3.5” (front) + 2 x 2.5” (back)
Hard drive options:
 2.5” SAS SSD, SATA SSD, SAS (15K, 10K), nearline SAS (7.2K), SATA (7.2K)
 2.5” Express Flash PCIe SSD (R720 only)
 3.5” SAS (15K), nearline SAS (7.2K), SATA (7.2K)
Self-encrypting drives (SEDs) available
Embedded NIC
Select Network Adapter options:
 Broadcom
®
5720 4x1Gb Base-T
 Intel I350 4x1Gb Base-T
 Intel X540 2x1Gb + 2x10Gb Base-T
 Broadcom 57800S 2x1Gb + 2x10Gb Base-T
 Broadcom 57800S 2x1Gb + 2x10Gb SFP+
 Broadcom 57840S 4x10Gb SFP+
 Mellanox
®
ConnectX
®
-3 dual-port 40GbE QSFP+
 Mellanox ConnectX-3 dual-port 10GbE DA/SFP+
Power supplies
Titanium efficiency, hot-plug redundant 750W AC power supply (200-240VAC only);
auto-ranging Platinum efficiency, hot-plug redundant 495W, 750W or 1100W AC
power supply; 1100W DC power supply (-48VDC)
Availability
High-efficiency, hot-plug, redundant power supplies; hot-plug drive bays; TPM; dual
internal SD support; hot-plug redundant fan; optional bezel; information tag; ECC
memory, interactive LCD screen (R720 only); extended thermal support; ENERGY
STAR
®
compliant configuration; switch independent partitioning
Dell OpenManage
systems management
(Agent-free or with
OpenManage Server
Administrator [OMSA]
Agent)
 OpenManage Essentials
 OMSA Agent
 OpenManage Power Center (requires iDRAC7 Enterprise with Lifecycle
Controller)
 OpenManage Integrations and Connections:
- OpenManage Integration Suite for Microsoft
®
System Center
- OpenManage Integration for VMware vCenter
- Connections for HP
®
Operations Manager, IBM
®
Tivoli
®
Netcool
®
and CA
Page: 11
12 PowerEdge R720 and R720xd Technical Guide
Feature Specification
Network and Systems Management
 iDRAC7 Express with Lifecycle Controller (standard option)
- Upgrade to iDRAC7 Enterprise with Lifecycle Controller
- Upgrade to 8GB vFlash media or 16GB vFlash media for iDRAC7 Enterprise
with Lifecycle Controller
- Trial evaluation available for IDRAC7 Enterprise with Lifecycle Controller
Rack support
 ReadyRails™ sliding rails for tool-less mounting in 4-post racks with square or
unthreaded round holes or tooled mounting in 4-post threaded hole racks, with
support for optional tool-less cable management arm
 ReadyRails static rails for tool-less mounting in 4-post racks with square or
unthreaded round holes or tooled mounting in 4-post threaded and 2-post
(Telco) racks
Operating systems
Microsoft Windows Server
®
2012 R2 (includes Hyper-V
®
)
Microsoft Windows Server 2012
Microsoft Windows Server 2008 R2 SP1, x64 (includes Hyper-V)
Microsoft Windows
®
HPC Server 2008
Microsoft Windows Small Business Server 2011
Novell
®
SUSE
®
Linux Enterprise Server
Red Hat
®
Enterprise Linux
®
Virtualization options:
Citrix
®
XenServer
®
VMware vSphere ESXi
Red Hat Enterprise Virtualization
®
For more information on the specific versions and additions, visit
Dell.com/OSsupport.
1
GB means 1 billion bytes and TB means 1 trillion bytes; actual capacity varies with preloaded material and operating
environment and will be less.
Page: 12
13 PowerEdge R720 and R720xd Technical Guide
3 Chassis views and features
The Dell PowerEdge R720 and R720xd implement a new chassis design which supports an increased
number of DIMMs, PCIe slots, and hard drives, relative to their predecessor servers. The following
sections provide external and internal views of the systems and describe the chassis features.
For information on features and descriptions for these systems, see the Dell PowerEdge R720 and
R720xd Owner's Manual on Dell.com/Support/Manuals.
Chassis views
The R720 and R720xd are available in several chassis options with varying numbers of drive bays.
Note: A chassis cannot be reconfigured or upgraded after point of purchase.
R720 front views
The R720 supports up to 16 2.5-inch or up to 8 3.5-inch front-accessible, hot-plug hard drives that
are secured by a removable front bezel. Other front-panel features include an interactive LCD
control panel, 2 USB connectors, a video connector, and a vFlash media card slot.
Figure 1. R720 front view (2.5” chassis with bezel)
Figure 2. R720 front view (2.5” chassis without bezel)
Page: 13
14 PowerEdge R720 and R720xd Technical Guide
R720xd front views
The R720xd supports up to 24 2.5-inch or up to 12 3.5-inch front-accessible, hot-plug hard drives
that are secured by a removable front bezel. Other front-panel features include an LED control
panel, a USB connector, and a video connector.
Figure 3. R720xd front view (with bezel)
Figure 4. R720xd front view (2.5-inch chassis without bezel)
R720 back view
The R720 back panel includes features such as redundant hot-plug power supply units (PSUs), 4
Ethernet connectors, PCI expansion slots, and many other features that are described in the rest of
this guide.
Figure 5. R720 back view
Page: 14
15 PowerEdge R720 and R720xd Technical Guide
R720xd back view
In addition to the R720 back-panel features, the R720xd also includes 2 optional 2.5-inch
hot-plug drives in the back of the system.
Figure 6. R720xd back view
Internal chassis views
The chassis design of the R720 and R720xd is optimized for easy access to components and for
airflow for effective and efficient cooling. The R720 and R720xd support up to 24 DIMMs,
2 processors, hot-plug redundant fans, and many other components and features that are described
in this guide.
Figure 7. R720 internal chassis view
Page: 15
16 PowerEdge R720 and R720xd Technical Guide
Figure 8. R720xd internal chassis view
For additional system views, see the Dell PowerEdge R720 and R720xd Owner’s Manual on
Dell.com/Support/Manuals.
Chassis features
Table 4 lists the chassis features for the R720 and R720xd systems. For additional information on
these features, see the Dell PowerEdge R720 and R720xd Owner’s Manual on
Dell.com/Support/Manuals.
Table 4. Chassis features
Feature Description
Power button and indicator ACPI-complaint power button with an integrated green power LED
NMI button
Recessed non-maskable interrupt (NMI) button used to troubleshoot
software and device driver errors; use only if directed to do so by
qualified support personnel or by the operating system's
documentation
System identification button
Buttons on the back and front of a system to help identify the unit in a
data center environment
Hard drive activity LEDs Indicate the status and activity of the hard drives
USB connectors
Two (R720) or one (R720xd) front, two back, and one internal USB
connector
vFlash media reader
Supports one vFlash media card (the R720 slot is located in the front of
the system and the R720x slot is located in the back); functionality is
activated only when iDRAC7 Enterprise is enabled
Video connector Connects a monitor to the system
Page: 16
17 PowerEdge R720 and R720xd Technical Guide
Feature Description
LCD control panel Provides user access to buttons, display and I/O interfaces (R720 only)
LED panel Indicates the status of system conditions (R720xd only)
Hard drives
Front-accessible, hot-plug hard drives plus two optional
back-accessible hot-plug hard drives (R720xd only)
Optical drive (optional)
The R720 supports one optional slimline SATA DVD-ROM drive or
DVD+/-RW drive; R720xd does not support an internal optical drive
System identification panel Slide-out label panel for system information
Serial connector Connects a serial device to the system and for console redirect
iDRAC7 Enterprise port Dedicated management port for optional iDRAC7 Enterprise
PCIe expansion card slots
The R720 supports up to seven PCIe expansion cards; R720xd supports
up to six PCIe expansion cards
Ethernet connectors Choice of network connectors through Select Network Adapter family
Power supply units Up to two back-accessible, hot-plug power supplies
Power supply indicators Indicate whether system has power
NIC indicators Indicate network activity and status
Quick Resource Locator (QRL)
This code on the chassis can be scanned by a phone application to
access information about the server
LCD control panel (R720)
The R720 system control panel is located on the front of the chassis to provide user access to
buttons, display, and I/O interfaces. For more information on the R720 LCD control panel, see the
Dell PowerEdge R720 and R720xd Owner's Manual on Dell.com/Support/Manuals.
Figure 9. R720 LCD control panel
Page: 17
18 PowerEdge R720 and R720xd Technical Guide
LED panel (R720xd)
The R720xd LED panel is located on the front of the chassis to indicate the status of system
conditions. For more information on the R720xd LED panel, see the Dell PowerEdge R720 and
R720xd Owner's Manual on Dell.com/Support/Manuals.
Figure 10. R720xd LED panel
Quick Resource Locator
A useful feature included with Dell PowerEdge 12th
generation servers is the Quick Resource Locator
(QRL)—a model-specific Quick Response (QR) code that is located on the server (shown in Figure
11). Just use your smartphone to access the Dell QRL application to learn more about the server.
Figure 11. QRL code inside chassis
This QRL code allows you to:
 View step-by-step videos, including overviews of system internals and externals, as well as
detailed, concise, task-oriented videos and installation wizards
 Locate reference materials, including searchable owner’s manual content, LCD diagnostics, and
an electrical overview
Page: 18
19 PowerEdge R720 and R720xd Technical Guide
 Look up your service tag so you can quickly gain access to your specific hardware configuration
info and warranty information
 Contact Dell directly (by link) to get in touch with technical support and sales teams and provide
feedback to Dell
These codes provide an easy way to retrieve the critical support information you need when you
need it, making you more efficient and effective in managing your hardware.
Security features
The latest generation of PowerEdge servers has the features listed in Table 5 to help ensure the
security of your data center.
Table 5. Security features
Security feature Description
Cover latch
A tooled latch is integrated in the top cover to secure it to the
rack chassis.
Front bezel
An optional metal bezel is mounted to the chassis front to provide
the Dell ID. A lock on the bezel is used to protect un-authorized
access to hard drives. System status is viewable on the LCD or
LED panel when the bezel is installed.
TPM
The Trusted Platform Module (TPM) is used to generate/store
keys, protect/authenticate passwords, and create/store digital
certificates. It also supports the Intel Xeon TXT functionality. TPM
can also be used to enable the BitLocker™ hard drive encryption
feature in Windows Server 2008. TPM 1.2 is supported. No TPM
version is available for China or Russia.
Power-off security BIOS has the ability to disable the power button function.
Intrusion alert An internal switch is used to detect chassis intrusion.
Secure mode
BIOS has the ability to enter a secure boot mode through system
setup. This mode includes the option to lock out the power and
NMI switches on the control panel or set up a system password.
Page: 19
20 PowerEdge R720 and R720xd Technical Guide
4 Processors
Dell PowerEdge R720 and R720xd servers feature the exceptional performance, value and power
efficiency of the Intel Xeon processor E5-2600 v2 product family. With up to 12 cores and 30MB
cache, E5-2600 v2 processors have the capacity to deliver performance gains of up to 40% over
previous-generation E5-2600 processors. No matter your constraint — floor space, power or
budget — E5-2600 v2 processors can help you achieve more computational horsepower, in the
same footprint, with better security and power efficiency.
Processor features
The Intel Xeon processor E5-2600 v2 product family has powerful new features and improves upon
many of the capabilities of the predecessor Intel Xeon processor E5-2600 series:
 With up to four additional cores, 10MB more cache and a 17% increase in memory speeds,
E5-2600 v2 processors may boost performance by up to 40% in PowerEdge server platforms
 Support for DDR3 1866MT/s memory provides faster connections throughout the system
 Up to 24 DIMM slots and support for up to 32GB DIMMs enable memory capacity of 768GB
Dell’s exclusive Fault Resilient Memory technology provides a protected memory zone for a
hypervisor without consuming half of the total RAM in the system,
 In combination with Fault Resilient Memory, E5-2600 v2 processors offer Failsafe Virtualization
for unsurpassed industry protection for virtual machines.
 Intel Secure Key and Intel OS Guard deliver faster and more secure encryption
 Advanced Programmable Interrupt Controller virtualization (APICv) improves virtualization
performance by reducing virtual machine (VM) exits, thereby reducing overhead required to
service every APIC interrupt
 Intel Integrated PCI Express 3.0 provides up to 40 lanes per socket
 Intel Turbo Boost Technology 2.0 delivers up to double the boost than the previous generation
turbo technology
 Intel Data Direct I/O (DDIO) allows I/O traffic to skip the main system memory and be directed
straight to the processor cache, which can provide a significant reduction in latency as well as
allowing memory to remain in a low-power state
 Intel Advanced Vector Extensions offer up to double the floating point operations per clock
cycle by doubling the length of registers, which can be useful in large-number calculations,
integral to many technical, financial and scientific computing problems.
For more information on Intel Xeon processor E5-2600 v2 product family, visit Intel.com.
Page: 20
21 PowerEdge R720 and R720xd Technical Guide
Supported processors
The R720 and R720xd support up to two processors with up to eight cores per processor. Table 6
lists the Intel Xeon E5-2600 v2 processors supported by the PowerEdge R720 and R720xd. For the
latest information on supported processors, visit Dell.com/PowerEdge.
Table 6. Supported processors
Model Speed Cache QPI Cores Turbo TDP
E5-2697 v2 2.7Ghz 30M 8.0GT/s 12 Yes 130W
E5-2695 v2 2.4Ghz 30M 8.0GT/s 12 Yes 115W
E5-26901
2.9GHz 20M 8.0GT/s 8 Yes 135W
E5-2690 v21
3.0GHz 20M 8.0GT/s 10 Yes 130W
E5-2680 2.7GHz 20M 8.0GT/s 8 Yes 130W
E5-2680 v2 2.8GHz 25M 8.0GT/s 10 Yes 115W
E5-2670
2
2.6GHz 20M 8.0GT/s 8 Yes 115W
E5-2670 v2 2.5GHz 25M 8.0GT/s 10 Yes 115W
E5-2665 2.4GHz 20M 8.0GT/s 8 Yes 115W
E5-2667 2.6GHz 15M 8.0GT/s 6 Yes 130W
E5-2667 v2 3.0GHz 20M 8.0GT/s 8 Yes 130W
E5-2660
2
2.2GHz 20M 8.0GT/s 8 Yes 95W
E5-2660 v2 2.2GHz 25M 8.0GT/s 10 Yes 95W
E5-2650L 1.8GHz 20M 7.2GT/s 8 Yes 70W
E5-2650L v2 1.7GHz 25M 8.0GT/s 10 Yes 60W
E5-2650 2.0GHz 20M 8.0GT/s 8 Yes 95W
E5-2650 v2 2.6GHz 20M 8.0GT/s 8 Yes 95W
E5-2643 3.3Ghz 10M 8.0GT/s 4 Yes 130W
E5-2643 v2 3.3GHz 15M 8.0GT/s 6 Yes 130W
E5-2640
2
2.5GHz 15M 7.2GT/s 6 Yes 95W
E5-2640 v2 2.0GHz 20M 7.2GT/s 8 Yes 95W
E5-2637 3.0GHz 5M 8.0 2 Yes 80W
E5-2637 v2 3.5GHz 10M 8.0GT/s 4 Yes 130W
E5-2630 2.3GHz 15M 7.2GT/s 6 Yes 95W
E5-2630 v2 2.6GHz 20M 7.2GT/s 6 Yes 80W
E5-2630L
2
2.0GHz 15M 7.2GT/s 6 Yes 60W
E5-2630L v2 2.4GHz 15M 7.2GT/s 6 Yes 60W
Page: 21
22 PowerEdge R720 and R720xd Technical Guide
Model Speed Cache QPI Cores Turbo TDP
E5-2620
2
2.0GHz 15M 7.2GT/s 6 Yes 95W
E5-2620 v2 2.1GHz 15M 7.2GT/s 6 Yes 80W
E5-2609
2
2.4GHz 10M 6.4GT/s 4 No 80W
E5-2609 v2 2.5GHz 10M 6.4GT/s 4 No 80W
E5-2603 1.8GHz 10M 6.4GT/s 4 No 80W
E5-2603 v2 1.8GHz 10M 6.4GT/s 4 No 80W
1
Not supported on the R720xd 3.5-inch chassis.
2
Model available for the life of the system.
For information on processor installation and configuration, see the Dell PowerEdge R720 and
R720xd Owner’s Manual on Dell.com/Support/Manuals.
GPU support
The R720 supports GPU technology, which can provide accelerated performance for a variety of
applications, including virtual desktop infrastructure (VDI) and HPC implementations. The R720xd
does not support internal or external GPUs.
Internal GPU support
The R720 can support two 300W, full-length, double-wide GPUs or up to four 150W, full-length,
single-wide GPUs. Each GPU can support up to 6GB of dedicated GDDR5 memory and is either
actively or passively cooled. The GPUs are installed on the PCIe x16 2.0 interfaces available on riser 2
and GPU-optional riser 3. A system must have the optional riser 3 with a single x16 slot to support
more than two GPUs.
Because GPUs demand high power, each GPU has up to two power connectors for power delivery.
The GPU enablement kit is required for internal GPU installation. The kit contains the power cables
and other items to enable GPU support on the R720 chassis.
Internal CPU cooling restriction
Due to the high power consumption of GPUs, there is an ambient temperature restriction of 30o
C
maximum system inlet temperature to ensure adequate system cooling the R720 has one or more
GPUs installed. Note that this temperature is less than the standard environmental specification of
35o
C.
Other GPU restrictions
The following GPU restrictions for the R720 are enforced by the order validator:
 Requires two processors
 Processors must be 115W or less
 Maximum of two double-wide GPUs (since they take up two slots)
 Maximum of four single-wide GPUs
 All GPUs must be same type and model
 GPUs require a redundant 1100W power supply and GPU enablement kit
Page: 22
23 PowerEdge R720 and R720xd Technical Guide
 Two double-wide GPUs require the optional riser 3 with a single x16 slot
 Four single-wide GPUs cannot occupy optional riser 3 with a single x16 slot
 Dell PowerVault RD1000 backup unit not supported
External GPU support
For external GPU support, the R720 connects to the PowerEdge C410x through a host interface
card (HIC) and an iPass cable. Both the NVIDIA®
and Dell x16 HIC require one x16 PCIe slot. Each
HIC supports up to four GPUs maximum due to internal memory allocation for the PCIe subsystem.
More than four GPUs per HIC attached to the server will impact performance of other PCIe
devices. The R720 supports up to eight GPUs in the PowerEdge C410x external chassis. For a list of
supported GPU HICs, see Table 18. For more information about the PowerEdge C410x, see
Dell.com/PowerEdgeC.
Supported GPU cards
For a list of supported GPUs, see Table 18 and Dell.com/PowerEdge/GPU.
Operating system support for GPUs
Some operating systems have not been validated to support GPUs. See Table 24 and Table 25 for
more information on operating system support of GPUs.
Chipset
The PowerEdge R720 and R720xd servers use the Intel C602 chipset. For more information, visit
Intel.com.
Page: 23
24 PowerEdge R720 and R720xd Technical Guide
5 Memory
More memory options are available than ever before with the Dell PowerEdge R720 and R720xd—
greater capacities, higher frequencies, and more flexibility. The R720 and R720xd support up to
768GB of memory (24 DIMMs) and speeds up to 1866MT/s, providing high performance in a variety
of applications. High memory density means there is no compromise when it comes to virtualization.
Increase your uptime and reduce data loss due to Dell’s focus on reliability, availability, and
serviceability (RAS) features. RAS aids in the rapid and accurate diagnosis of faults which require
service, increasing your memory reliability. System uptime is reinforced with RAS features like
memory mirroring, sparing, and many others.
In addition to supporting existing unbuffered DIMMs (UDIMMs) and registered DIMMs (RDIMMs), the
R720 and R720xd support load reduced DIMMs (LRDIMMs), which use a buffer to reduce memory
loading and provide greater density, allowing for the maximum platform memory capacity.
Supported memory
Table 7 lists the memory technologies supported by the R720 and R720xd.
Table 7. Memory technologies supported
Feature UDIMM RDIMM LRDIMM
Register No Yes Yes
Buffer No No Yes
Frequencies* 1600MT/s 1333, 1600 or 1866MT/s 1600 or 1866MT/s
Ranks supported 1 1, 2 or 4 4
Capacity per DIMM 4GB 4, 8, 16 or 32GB 32GB
Maximum DIMMs per
channel
2 3 3
DRAM technology x8 x4 or x8 x4
Temperature sensor Yes Yes Yes
Error Correction Code
(ECC)
Yes Yes Yes
Single Device Disable
Code (SDDC)
Yes (with advanced
ECC mode)
Yes Yes
Address parity Yes Yes Yes
*Although the R720 and R720xd support DIMM speeds lower than 1600MT/s, you can only purchase these systems
with DIMM speeds of 1600MT/s and 1866MT/s on Dell.com/PowerEdge.
Page: 24
25 PowerEdge R720 and R720xd Technical Guide
Table 8 lists the DIMMs supported on the R720 and R720xd. For the latest information on supported
memory, visit the PowerEdge memory page on Dell.com.
Table 8. DIMMs supported
Onl
Capacity
(GB)
Speed
(MT/s)
Type
Ranks
per
DIMM
Data
width
SDDC support Voltage
4 1866 RDIMM 1 X8 Advanced ECC 1.5
4 1600 RDIMM 1 x8 Advanced ECC 1.35
4 1600 UDIMM 1 X8 Advanced ECC 1.35
8 1866 RDIMM 1 x4 All modes 1.5
8 1600 RDIMM 1 x4 All modes 1.35
16 1866 RDIMM 2 x4 All modes 1.5
16 1600 RDIMM 2 x4 All modes 1.35
32 1866 LRDIMM 4 x4 All modes 1.5
32 1600 LRDIMM 4 x4 All modes 1.35
32 1333 RDIMM 4 x4 All modes 1.35
Memory configurations
The R720 and R720xd servers support flexible memory configurations ranging from capacities of
4GB (minimum) to 32GB (maximum). The R720 and R720xd support up to 12 DIMMs per processor
(up to 24 DIMMs in a dual-processor configuration). Each server has four memory channels per
processor, with each channel supporting up to three DIMMs.
Both systems support a flexible memory configuration, according to the following basic rules:
 Speed: If DIMMs of different speeds are mixed, all channels across all processors operate at the
slowest DIMM’s common frequency.
 DIMM type: Only one type of DIMM is allowed per system: UDIMM, RDIMM or LRDIMM. These
types cannot be mixed.
The following additional memory-population guidelines apply to the R720 and R720xd:
 Up to two quad-rank (QR) DIMMs and up to three dual-rank (DR) or single-rank (SR) DIMMs may
be populated per channel. Although an LRDIMM is physically a QR DIMM, logic on the LRDIMM
can make it appear as a DR DIMM to the system, allowing up to three LDRIMMs per channel.
 DIMMs must be installed in each channel, starting with the DIMM farthest from the processor.
 DIMMs should be installed with largest rank count to smallest. For example, if DR DIMMS are
mixed with SR DIMMs, DR DIMMS should be placed in the lowest DIMM slots, followed by the SR
DIMMs.
For more information on memory configuration and population, see the Dell PowerEdge R720 and
R720xd Owner’s Manual on Dell.com/Support/Manuals.
Memory speed
The R720 and R720xd support memory speeds of up to 1866MT/s, depending on DIMM types
installed and configuration. The loading within a channel significantly affects memory speed.
Page: 25
26 PowerEdge R720 and R720xd Technical Guide
Table 9 illustrates the maximum achievable speed of the Intel Xeon processor E5-2600 and E5-
2600 v2 product families based on memory loads.
 Green boxes are defaults for performance per watt
 White boxes (with lower voltage) can save power but will run at slower speeds
 White boxes (with higher voltage) can be custom configured in the bios
Table 9. Memory speed capabilities
DIMM
type
DIMM
rank
Intel Xeon processor E5-2600 and E5-2600 v2
product families
DIMMs per channel (DPC)
1 DPC 2 DPC 3 DPC
1.35V 1.5V 1.35V 1.5V 1.35V 1.5V
RDIMM 1R/2R 1866 1866 1333
RDIMM 1R/2R 1600 1600 1600 1600 1066 1333
UDIMM 1R/2R 1600 1600 1600 1600
RDIMM 4R 1066 1333 1066 1066
LRDIMM 4R 1866 1600 1333
LRDIMM 4R 1600 1600 1600 1600 1066 1333
Memory RAS features
Reliability, availability, and serviceability (RAS) features help keep the system online and operational
without significant impact to performance, and can decrease data loss and crashing due to errors.
RAS aids in rapid, accurate diagnosis of faults which require service. Table 10 describes the memory
RAS features supported on the R720 and R720xd.
Table 10. Memory RAS features
Feature Description
Dense configuration
optimized profile
Increased memory reliability can be a result from this selectable platform profile
that adjusts parameters to reduce faults regarding refresh rates, speed,
temperature and voltage
Memory demand and
patrol scrubbing
Demand scrubbing is the ability to write corrected data back to the memory once
a correctable error is detected on a read transaction. Patrol scrubbing proactively
searches the system memory, repairing correctable errors.
Recovery from single
DRAM device failure
(SDDC)
Recovery from Single DRAM Device Failure (SDDC) provides error checking and
correction that protects against any single memory chip failure as well as multi-bit
errors from any portion of a single memory chip.
Failed DIMM isolation
This feature provides the ability to identify a specific failing DIMM channel pair,
thereby enabling the user to replace only the failed DIMM pair.
Page: 26
27 PowerEdge R720 and R720xd Technical Guide
Feature Description
Memory mirroring:
intra-socket
Memory mirroring is a method of keeping a duplicate (secondary or mirrored)
copy of the contents of memory as a redundant backup for use if the primary
memory fails. The mirrored copy of the memory is stored in memory of the same
processor socket.
Memory address parity
protection
This feature provides the ability to detect transient errors on the address lines of
the DDR channel.
Memory sparing (rank)
Memory sparing allocates one rank per channel as a spare. If excessive correctable
errors occur in a rank or channel, they are moved to the spare area while the
operating system is running to prevent the errors from causing an uncorrectable
failure.
Memory thermal
throttling
This feature helps to optimize power/performance and can also be used to
prevent DIMMs from overheating.
For information on memory mirroring and sparing configurations, see the Dell PowerEdge R720 and
R720xd Owner’s Manual on Dell.com/Support/Manuals. Memory RAID is not supported.
Page: 27
28 PowerEdge R720 and R720xd Technical Guide
6 Storage
The Dell PowerEdge R720 and R720xd provide storage expandability that allows you to adapt to
your workload and operational demands. With comprehensive storage options, the R720 and
R720xd offer various drive types, internal and external storage controllers, and different chassis and
backplanes for varied numbers of drives.
Due to their massive internal storage capacities, the R720 and R720xd are optimized for a variety of
implementations, including virtual desktop infrastructure (VDI) environments and collaboration
solutions. The R720 supports up to 16 and the R720xd supports up to 26 internal 2.5-inch drives.
Features such as Express Flash PCIe solid-state drives and CacheCade provide vastly accelerated
performance over previous technologies. Dell Express Flash drives use PCIe lanes to connect
directly to the processor and chipset and are easily accessible through a hot-plug drive bay.
CacheCade uses Dell PERC storage controllers to accelerate performance over hard drives or
traditional solid-state drives.
Internal storage
The R720 and R720xd are available in several hot-plug, hard-drive chassis options, as detailed in
Table 11. Note that the chassis option must be selected at the point of purchase and cannot be
changed or upgraded later.
Table 11. Chassis options
PowerEdge server Chassis option
R720
16 x 2.5” drives
8 x 2.5” + 8 x 2.5” drives
(with dual RAID controllers)
8 x 2.5” drives
8 x 2.5” + 4 x Express Flash drives
8 x 3.5” drives
R720xd
24 x 2.5” drives (front) +
2 x 2.5” drives (back)
1
12 x 3.5” drives (front) +
2 x 2.5” drives (back)
1
1
Back-accessible 2.5” drives are optional
Page: 28
29 PowerEdge R720 and R720xd Technical Guide
Supported hard drives
Table 12 lists the internal hard drives supported by the R720 and R720xd. For the latest information
on supported hard drives, visit Dell.com/PowerEdge.
Table 12. Supported hard drives
Form
factor
Type
Speed
(rpm)
Capacities
3.5”
SATA 7.2K 250GB, 500GB, 1TB, 2TB, 4TB
Nearline SAS 7.2K 1TB, 2TB, 3TB, 4TB
SAS 15K 300GB, 600GB
2.5”
SATA 7.2K 250GB, 500GB, 1TB
Nearline SAS 7.2K 500GB, 1TB, 1TB (SED)
SAS 10K
300GB, 600GB, 900GB, 900GB
(SED), 1.2TB
SAS 15K 146GB, 300GB, 300GB (SED)
SATA SSD N/A
100GB, 160GB, 200GB, 300GB,
400GB, 480GB, 800GB
PCIe SSD
(R720 only)
N/A 175GB, 350GB, 700GB, 1.4TB
Express Flash drives
Express Flash drives use PCIe and SSD technologies to provide performance, scalability, and optimal
serviceability. Accelerated performance with high IOPs is made possible without requiring processor
resources or capturing DRAM. Also, Express Flash drives use a standardized, 2.5-inch hot-plug form
factor, which saves critical PCIe slot space by moving drives from the back to the front of the system
and allows a common management process for all drives.
The PowerEdge R720 has an option to support up to four hot-plug Express Flash PCIe SSDs in the
2.5-inch chassis. The R720xd does not support Express Flash drives.
Page: 29
30 PowerEdge R720 and R720xd Technical Guide
External storage
The R720 and R720xd support the external storage devices types listed in Table 13. For more storage
information, see Dell.com/Storage.
Table 13. Supported external storage device types
Device type Description
External tape
Supports connection to external USB tape products (supports boot
from Dell PowerVault™ RD1000)
Supports connection to external SAS tape products
Supports connection to external FC tape products
Supports connection to external SCSI tape products (legacy support
only)
Supports connection to external iSCSI tape products
NAS / IDM appliance software Supports NAS software stack
Dell PowerVault NAS
Supports connection to current PowerVault NAS (Network Attached
Storage) products
PowerVault DAS
Supports connection to current PowerVault direct-attach storage
(DAS) (including JBOD and RBOD enclosures) products
PowerVault SAN
Supports connection to current PowerVault storage area network
(SAN) (including Dell EqualLogic™, iSCSI, Dell-EMC arrays, and JBOD
disk enclosures) products
PowerVault IDM
Supports connection to current PowerVault intelligent data
management (IDM) (archive solutions, de-duplication, B2D, and
data-protection appliances) products
Storage controllers
Dell provides highly capable RAID options for you to ensure that your data remains safe. Dell’s RAID
controller options offer impressive performance improvements, including the following features:
 FastPath™ I/O: This feature can help accelerate performance when operating on SSDs.
 Split mirror: This function allows you to break mirrored disk connection in order to quickly
replace a drive.
 Physical disk power management (Dimmer Switch™): This feature allows for power control of
spare or idle drives, which can save energy and operating expenses.
Supported RAID controllers
The newest line of PowerEdge RAID Controllers (PERCs) offer high I/O performance for a variety of
uses, including database applications and streaming digital media environments. The internal RAID
controllers have a dedicated connection to the system board. The PERC S110 is supported on the
R720 (3.5-inch chassis only) and is not supported on the R720xd.
Page: 30
31 PowerEdge R720 and R720xd Technical Guide
Table 14 lists the RAID controllers supported on the R720 and R720xd.
Table 14. RAID controllers
Controller Description Features
RAID
modes
Form factor Usage model
PERC
H810
External
Eight-port, external,
6Gb/s PCIe RAID
controller that supports
up to 192 SATA and SAS
HDDs or SSDs
Includes 1GB NV DDR3
cache, premium
performance and feature
set, security SED/EKMS,
and SSD as cache
0, 1, 10, 5,
50, 6, 60
Adapter
Premium
performance
PERC
H710P
Internal
Eight-port, internal,
6Gb/s PCIe RAID
controller that supports
up to 32 SATA and SAS
HDDs or SSDs
Includes 1GB NV DDR3
cache, premium
performance and feature
set, security SED/EKMS,
and SSD as cache
0, 1, 10, 5,
50, 6, 60
Adapter
Premium
performance
PERC H710
Eight-port, internal,
6Gb/s PCIe RAID
controller that supports
up to 32 SATA and SAS
HDDs or SSDs
Includes 512MB DDR3
cache, advanced feature
set, security SED/EKMS
0, 1, 10, 5,
50, 6, 60
Adapter Performance
PERC
H310
Eight-port, internal,
6Gb/s PCIe RAID
controller that is a
low-cost, entry-level
solution supporting up
to 32 SATA and SAS
HDDs or SSDs
Supports hot-plug drives,
expansion, pass-through
0, 1, 10, 5,
50
Adapter Value
PERC S110
Software
RAID
(R720 only)
3Gb/s SATA software
RAID controller that is a
low-cost, entry-level
solution, supporting up
to 4 physical disks or
eight virtual disks
Supports up to 4
hot-plug SATA drives, no
expansion, Microsoft
Windows only
0, 1, 5, 10
System
board-
embedded
SATA
Entry-level
For more information about the latest PERC offerings, see Dell.com/PERC.
CacheCade
CacheCade is a technology that provides automated storage tiering on SSDs with the PERC H810
and H710P. It works by detecting the most-often accessed data and copying it over time to the
CacheCade SSD(s) where that cached data is accessed directly, instead of accessing the hard disk
drives. This can dramatically increase how your applications respond when they are under peak
traffic times and how they perform when response time is critical.
CacheCade provides cost-effective performance scaling for database-type applications that
perform lots of random reads, and saves the cost of adding extra drives.
Page: 31
32 PowerEdge R720 and R720xd Technical Guide
Optical drives
The PowerEdge R720 supports one of the following internal optical drive options:
 DVD-ROM
 DVD+RW
The R720xd does not support an internal optical drive.
Tape drives
The R720 supports the Dell PowerVault RD1000 internal backup device on the 2.5-inch chassis only.
Internal tape drives are not supported on the R720, and the R720xd does not support any internal
backup device.
Page: 32
33 PowerEdge R720 and R720xd Technical Guide
7 Networking and PCIe
The Dell PowerEdge R720 and R720xd offer balanced, scalable I/O capabilities, including integrated
PCIe 3.0-capable expansion slots. Dell Select Network Adapters, Dell’s network daughter cards, let
you choose the right network fabric without using up a valuable PCI slot. Pick the speed, technology,
vendor, and other options, such as switch independent partitioning, which lets you share and
manage bandwidth on 10GbE connections.
Select Network Adapters
The Select Network Adapter family is purpose-built and includes flexible LAN on Motherboard (LOM)
card options for Dell PowerEdge 12th
generation servers. The Select Network Adapter form factor
delivers the value of LOM integration with the system, including BIOS integration and shared port for
manageability while providing the flexibility of a modular card.
The PowerEdge R720 and R720xd support one custom network daughter card (NDC), as part of
Select Network Adapters family, to house the complete LOM subsystem. There are two form factors
of Select Network Adapters — one for blade servers and one for rack servers (shown Figure 12). The
rack NDC options supported on the R720 and R720xd include a selection of 1GbE and 10GbE port
cards, such as 1000 Base-T, 10Gb Base-T, and 10Gb SFP+.
Figure 12. Rack network daughter card (NDC)
Page: 33
34 PowerEdge R720 and R720xd Technical Guide
Table 15 lists available features of numerous supported Select Network Adapter options for the R720
and R720xd. For a complete list of supported Select Network Adapters, visit Dell.com/PowerEdge.
Table 15. Supported Select Network Adapter options and features
Features
Broadcom
5720 Base-T
Intel I350
Base-T
Broadcom
57800 SFP+
1 Broadcom
57800 Base-T
1
Broadcom
57840S
SPF+
Intel X540
Base-T
1
Ports x link
speed
4 x 1Gb 4 x 1Gb
2 x 1Gb +
2 x 10Gb
2 x 1Gb +
2 x 10Gb
4 x 10Gb
2 x 1Gb +
2 x 10Gb
Supported
speed
1Gb 1Gb 1Gb and 10Gb 1Gb and 10Gb 10Gb
1Gb and
10Gb
SR-IOV
Not
supported
Not
supported
Not
supported
Not
supported
Supported
Supported
(10Gb
only)
ISCSI HBA
Not
supported
Not
supported
Supported
2
Supported
2
Supported
2 Not
supported
EEE Supported Supported
Not
supported
Not
supported
Not
supported
Not
supported
FCoE
Not
supported
Not
supported
Supported
3
Supported
3
Supported
3
Supported
3
Switch
independent
partitioning
Not
supported
Not
supported
Supported
4
Supported
4
Supported
4 Not
supported
DCB
Not
supported
Not
supported
Supported
5
Supported
5
Supported
5
Supported
5
iSCSI TLV
Not
supported
Not
supported
Supported
6
Supported
6
Supported
6
Supported
6
1
These cards have two chipsets that offer the choice of either 10GbE or 1GbE.
2
Only 10Gb ports have iSCSI HBA support.
3
Only 10Gb ports have FCoE support.
4
Only 10Gb ports have switch independent partitioning support. The maximum number of partitions supported is four (two
partitions per 10Gb port). 1Gb ports do not support switch independent partitioning.
5
Only 10Gb ports have DCB support.
6
Only 10Gb ports have ISCSI TLV support.
System management integration
With R720 and R720xd, the job of deploying, updating, monitoring, and maintaining the Select
Network Adapters is fast and easy. System management integration features include the following:
 Pre-boot: Use the Dell Lifecycle Controller graphical user interface (GUI) to set configuration
such as bandwidth allocation or firmware revision level
 Post-boot: Agent-free out-of-band or high-speed in-band connection over LOM through the
Operating System/BMC pass-through feature for sensory information
Page: 34
35 PowerEdge R720 and R720xd Technical Guide
 Automation of firmware and driver version deployment upon component replacement
 Automatic monitoring of NIC status and notification on SNMP traps
 Local or remote reconfiguration of any NIC, physical or virtual
 PXE boot enabled on all LOM and NDCs for ease of use
 Boot from SAN (iSCSI, FCoE) configuration for networking devices through the Lifecycle
Controller GUI
PCIe expansion
For information on card installation, requirements, and slot priorities, see the PowerEdge R720 and
R720xd Owner’s Manual on Dell.com/Support/Manuals.
PCIe slots
The R720 and R720xd provide greatly expanded PCIe slot capability over their predecessor servers.
This is made possible by the 40 PCIe lanes available from each processor in the system. Two
processors are required in the system to enable all PCIe slots. The R720 and R720xd have been
designed to be PCIe 3.0 compliant in order to take full advantage of the processor capabilities. Table
16 details the R720 and R720xd PCIe slots.
Table 16. PCIe expansion slots
System R720 R720xd
Slots
1
7 6
Slot types One x16 full-length, full-height
Three x8 full-length, full-height
Three x8 half-length, half-height
Two x16 full-length, full-height
One x8 full-length, full-height
Three x8 half-length, half-height
1
In a single-processor configuration, slots 1–4 are not usable.
PCIe expansion cards
The R720 and R720xd support a variety of PCIe expansion cards. Table 17 lists the supported add-in
NICs and HBAs for the R720 and R720xd.
Table 17. Supported NICs and HBAs
Type Adapter
1Gb/10Gb NICs
Broadcom 5720 2x1Gb Base-T
Broadcom 5719 4x1Gb Base-T
Intel I350 2x1Gb Base-T
Intel I350 4x1Gb Base-T
Broadcom 57810S 2x10Gb SFP+
Broadcom 57810S 2x10Gb Base-T
Intel X520 2x10Gb SFP+
Page: 35
36 PowerEdge R720 and R720xd Technical Guide
Type Adapter
Intel X540 2x10Gb Base-T
QLogic
®
QLE8262 2x10Gb SFP+
Brocade
®
BR1020 2x10Gb SFP+
Mellanox ConnectX-3 dual-port 40GbE QSFP+
Mellanox ConnectX-3 dual-port 10GbE DA/SFP+
FC4/FC8/F16 HBAs
QLogic QLE2460 4Gb
QLogic QLE2462 4Gb
QLogic QLE2560 8Gb
QLogic QLE2562 8Gb
QLogic QLE2660 16Gb
QLogic QLE2662 16Gb
Emulex
®
LPe12000 8Gb
Emulex LPe12002 8Gb
Brocade BR815 8Gb
Brocade BR825 8Gb
In addition to the NICs and HBAs listed in Table 17, the supported PCIe expansion cards for the R720
and R720xd are listed in Table 18.
Table 18. Additional supported PCIe expansion cards
Type Adapter
GPUs
(R720 only)
Intel Xeon Phi™ 5110P coprocessor
Intel Xeon Phi 7120P coprocessor
NVIDIA M2090 (double wide)
NVIDIA M2075 (double wide)
NVIDIA M2070Q (double wide)
NVIDIA Tesla K10 (double wide)
NVIDIA Tesla K20 (double wide)
NVIDIA Tesla K40M (double wide)
NVIDIA GRID™ (VGX) K1 (double wide)
Page: 36
37 PowerEdge R720 and R720xd Technical Guide
Type Adapter
NVIDIA GRID (VGX) K2 (double wide)
AMD V7800P FirePro™ (single wide)
AMD S7000 FirePro (single wide)
AMD S9000 FirePro (double wide)
GPU HICs
(R720 only)
NVIDIA HIC
Dell PLX HIC
PCIe SSDs
Fusion-io
®
IoDrive
®
640GB V1
Fusion-io PCIe SSD v2
Micron P420m (1.4TB and 700GB)
PCIe bridge
PCIe bridge adapter for front-accessible, hot-plug
Express Flash PCIe SSDs
For the latest information on supported PCIe expansion cards for the R720 and R720xd, visit
Dell.com/PowerEdge.
Page: 37
38 PowerEdge R720 and R720xd Technical Guide
8 Power, thermal, and acoustics
Lower overall system-level power draw is a result of Dell’s breakthrough system design. PowerEdge
servers maximize performance per watt through a combination of power and cooling, energy
efficient technologies, and tools. Additionally, PowerEdge servers have an extensive collection of
sensors that automatically track thermal activity, which helps regulate temperature thereby reducing
server noise and power consumption.
Power consumption and energy efficiency
With the rise in the cost of energy coupled with increasing data center density, Dell provides tools
and technologies to help you realize greater performance with less energy cost and waste. More
efficient data center usage can reduce costs by slowing the need for additional data center space.
Table 19 lists the tools and technologies Dell offers to help you achieve your data center goals by
lowering power consumption and increasing energy efficiency.
Table 19. Power tools and technologies
Feature Description
Power supply units (PSU)
portfolio
Dell’s PSU portfolio includes intelligent features such as dynamically
optimizing efficiency while maintaining availability and redundancy. Find
additional information in the Power supply units section.
Tools for right-sizing
Energy Smart Solution Advisor (ESSA) is a tool that can help you determine
the most efficient configuration possible. With Dell’s ESSA, you can calculate
the power consumption of your hardware, power infrastructure, and storage.
ESSA can help you determine exactly how much power your server will use
at a given workload, and the PSU Advisor can help you choose the best,
most efficient PSU for your workload. Learn more at Dell.com/ESSA.
Industry compliance
Dell’s servers are compliant with all relevant industry certifications and
guidelines, including 80 PLUS, Climate Savers, and ENERGY STAR.
Power monitoring
accuracy
PSU power monitoring improvements include:
 Dell’s power monitoring accuracy is currently 1%, whereas the industry
standard is 5%
 More accurate reporting of power
 Better performance under a power cap
Power capping
Use Dell’s systems management to set the power cap limit for your systems
to limit the output of a PSU and reduce system power consumption. Dell is
the first hardware vendor to leverage Intel Node Manager for circuit-breaker
fast capping.
Systems management
iDRAC7 Enterprise provides server-level management that monitors, reports,
and controls power consumption at the processor, memory, and system
level.
Dell OpenManage Power Center delivers group power management at the
rack, row, and data center level for servers, power distribution units, and
uninterruptible power supplies.
Page: 38
39 PowerEdge R720 and R720xd Technical Guide
Feature Description
Active power management
Intel Node Manager is an embedded technology that provides individual
server-level power reporting and power limiting functionality. Dell offers a
complete power management solution comprised of Intel Node Manager
accessed through Dell iDRAC7 Enterprise and OpenManage Power Center
that allows policy-based management of power and thermals at the
individual server, rack, and data center level.
Hot spare reduces power consumption of redundant power supplies.
Thermal control of fan speed optimizes the thermal settings for your
environment to reduce fan consumption and lower system power
consumption.
Idle power enables Dell servers to run as efficiently when idle as when at full
workload.
Fresh Air cooling
With the thermal design and reliability of Dell products, certain
configurations have the capability to operate at excursion-based
temperatures beyond the industry standard of 35°C (95°F) up to 45°C (113°F)
for excursionary periods of time and up to a 26°C dew point at 90% relative
humidity; without impacting your availability model. Find additional
information at Dell.com/FreshAir.
Rack infrastructure
Dell offers some of the industry’s highest-efficiency power infrastructure
solutions, including:
 Power distribution units (PDUs)
 Uninterruptible power supplies (UPSs)
 Energy Smart containment rack enclosures
Find additional information at: http://content.dell.com/us/en/enterprise/
power-and-cooling-technologies-components-rack-infrastructure.aspx.
Find additional information at Dell.com/PowerAndCooling and Power.com/PowerCenter.
Power supply units
Energy Smart power supplies have intelligent features, such as the ability to dynamically optimize
efficiency while maintaining availability and redundancy. Also featured are enhanced
power-consumption reduction technologies, such as high-efficiency power conversion and
advanced thermal-management techniques, and embedded power-management features,
including high-accuracy power monitoring.
The following power supply unit options are available for the R720 and R720xd:
 495W AC
 750W AC
 1100W AC
 1100W DC
Page: 39
40 PowerEdge R720 and R720xd Technical Guide
Figure 13 shows a 750W power supply unit extended from an R720 system.
Figure 13. 750W power supply unit
The PowerEdge R720 and R720xd support up to two AC or DC power supplies with 1 + 1
redundancy, auto sensing, and auto-switching capability. For additional power supply specifications,
see Table 32.
Dell PSUs have achieved Platinum and Titanium efficiency levels as shown in Table 20.
Table 20. Power supply efficiency
Form factor Output Class
Efficiency targets by load
10% 20% 50% 100%
Redundant 86mm
495W AC Platinum 82.0% 90.0% 94.0% 91.0%
750W AC Titanium 90.0% 94.0% 96.0% 91.0%
750W AC Platinum 82.0% 90.0% 94.0% 91.0%
1100W AC Platinum 89.0% 93.0% 94.5% 92.0%
1100W DC N/A 80.0% 88.0% 91.0% 88.0%
Thermal and acoustics
Thermal management of PowerEdge R720 and R720xd delivers high performance for the right
amount of cooling to components at the lowest fan speeds across a wide range of ambient
temperatures from 10°C to 35°C (50°F to 95°F) and to extended ambient temperature ranges (see
Table 31) . The benefits to you are lower fan power consumption (lower server system power and
data center power consumption) and greater acoustical versatility. The PowerEdge R720 is quiet
enough to be used in an office environment in typical and minimum configurations, and the R720xd
can also operate at a similar level in certain configurations.
Thermal design
The thermal design of the PowerEdge R720 and R720xd reflect the following:
 Optimized thermal design: The system layout is architected for optimum thermal design. System
component placement and layout are designed to provide maximum airflow coverage to critical
components with minimum expense of fan power.
Page: 40
41 PowerEdge R720 and R720xd Technical Guide
 Comprehensive thermal management: The thermal control system regulates the fan speed based on
several different responses from all system-component temperature sensors, as well as inventory for
system configurations. Temperature monitoring includes components such as processors, DIMMs,
chipset, the inlet air ambient, hard disk drives, NDC, and GPU.
 Open and closed loop thermal fan speed control: Open loop thermal control uses system configuration
to determine fan speed based on inlet air ambient temperature. Closed loop thermal control method uses
feedback temperatures to dynamically determine proper fan speeds.
 User-configurable settings: With the understanding and realization that every customer has unique set of
circumstances or expectations from the system, in this generation of servers, we have introduced limited
user-configurable settings residing in the iDRAC7 BIOS setup screen. For more information, see the
PowerEdge R720 and R720xd Owner’s Manual on Dell.com/Support/Manuals and “Advanced Thermal
Control: Optimizing across Environments and Power Goals” on Dell.com.
 Cooling redundancy: The R720 and R720xd allow N+1 fan redundancy, allowing continuous operation
with one fan failure in the system.
 Environmental specifications: The optimized thermal management makes the R720 and R720xd reliable
under a wide range of operating environments as shown in Table 31.
Acoustical design
The acoustical design of the PowerEdge R720 and R720xd reflect the following:
 Versatility: The R720 and R720xd save you power draw in the data center but are also quiet enough for
office environment in typical and minimum configurations. Compare the values for LpA in Table 21 and
Table 22 for these configurations, and note that they are lower than ambient measurements of typical
office environments. You may find that the system is sufficiently quiet where the sound it emits blends into
the environment.
 Adherence to Dell’s high sound quality standards: Sound quality is different from sound power level and
sound pressure level in that it describes how humans respond to annoyances in sound, like whistles and
hums. One of the sound quality metrics in the Dell specification is prominence ratio of a tone, which is
listed in Table 21 and Table 22.
 Noise ramp and descent at bootup from power off: Fan speeds and noise levels ramp during the boot
process (from power-off to power-on) in order to add a layer of protection for component cooling in the
event that the system were not to boot properly. In order to keep the bootup process as quiet as possible,
the fan speed reached during bootup is limited to about half of full speed.
 Noise level dependencies: If acoustics is important to you, several configuration choices and settings are
important to consider:
For lower acoustical output, use a small number of lower rotational-speed SATA hard drives,
nearline SAS hard drives, or non-rotational devices like SSDs. 15k hard drives generate more
acoustic noise than that of lower rotational-speed hard drives, and noise increases with
number of hard drives.
Fan speeds and noise may increase from baseline factory configurations if certain profiles are
changed by the user or the system configurations are updated. The following is a list of items
that impact fan speeds and acoustical output:
> iDRAC7 BIOS settings: Performance Per Watt (DAPC or OS) may be quieter than
Performance or Dense Configuration (iDRAC Settings > Thermal > Max. Exhaust
Temperature or Fan speed offset).
> The quantity and type of PCIe cards installed: This affects overall system acoustics.
Installation of more than two PCIe cards results in an increase in overall system acoustics.
> Using a GPU card: This results in an increase in overall system acoustics.
> PCIe controller-based SSD drives: Drives such as Express flash drives and Fusion-io cards
require greater airflow for cooling, and result in significantly higher noise levels.
> Systems with an H310 PERC: This configuration may be quieter than those with an H710
PERC with battery backup. However, higher noise levels result when a system is
configured as non-RAID.
Page: 41
42 PowerEdge R720 and R720xd Technical Guide
> Hot spare feature of power supply unit: In the system default setting, the Hot Spare
Feature is disabled; acoustical output from the power supplies is lowest in this setting.
Table 21 and Table 22 detail the acoustical performance for the R720 and R720xd.
Table 21. R720 acoustical performance (2.5-inch chassis)
Configuration
(23 ± 2°C
ambient)
CPUs Hard drives
Power
supply
unit
Memory
PCI
card/HDD
controller
Operating
mode
LWA-
UL1
(bels)
LpA2
(dBA)
Prominent
tones3
Minimum 1
1 x 250GB
SATA (7.2k)
1 x
495W
1 x
8GB
1 x PERC
H310
Idle 4.0 20 None
Stressed
4
4.1 20 None
Typical 2
6 x 300GB
SAS (10K)
2 x
750W
8 x
8GB
1 x PERC
H710,
1 x GbE
NIC
Idle 4.4 25 None
Stressed
4
4.5 26 None
Table 22. R720xd acoustical performance (2.5-inch chassis)
Configuration
(23 ± 2°C
ambient)
CPUs Hard drives
Power
supply
unit
Memory
PCI
card/HDD
controller
Operating
mode
LWA-UL
1
(bels)
LpA
2
(dBA)
Prominent
tones
3
Minimum 1
1 x 250GB
SATA (7.2k)
1 x
495W
1 x
8GB
1 x PERC
H310
Idle
4
4.7 28 None
Stressed
5
4.8 28 None
Typical 2
14 x 300GB
SAS (10K)
2 x
750W
8 x
8GB
1 x PERC
H710,
1 x GbE
NIC
Idle
4
4.8 28 None
Stressed
5
5.0 30 None
1
LwA – UL is the upper limit sound power levels (LwA) calculated per section 4.4.1 of ISO 9296 (1988) and measured in
accordance to ISO 7779 (2010).
2
LpA is the average A-weighted sound pressure level from the four bystander positions calculated per section 4.3 of
ISO9296 (1988) and measured in accordance with ISO 7779 (2010). The system is placed in a half rack enclosure (base of
system is 25 cm above reflective floor).
3
Prominent tone: Criteria of D.6 and D.11 of ECMA-74 11th ed. (2010) are followed to determine if discrete tones are
prominent. The system is placed in a half rack enclosure (base of system is 75 cm above reflective floor) and acoustic
transducer is at front bystander position, ref ISO 7779 (2010 Section 8.6.2).
4
Idle: Reference ISO 7779 (2010) definition 3.1.7; system is running in its OS but no other specific activity.
5
Stressed processor: An operating mode per ISO 7779 (2010) definition 3.1.6. The software SPECPower at 50% loading is
activated to stress the processors.
For more information on Dell’s acoustical design, see the Dell Enterprise Acoustics white paper.
Page: 42
43 PowerEdge R720 and R720xd Technical Guide
9 Rack rails and cable management
The rack rail systems for the Dell PowerEdge R720 and R720xd provide tool-less support for
4-post racks with square or unthreaded round mounting holes, including all generations of Dell
racks. Compared to the predecessor R710 sliding rails that required the use of adapter brackets, the
sliding rails for the R720 and R720xd now offer native support for threaded-hole racks with the new
ReadyRails II mounting interface.
The optional cable management arm (CMA) can be mounted on either the left or right side of the
sliding rails without the use of tools for fast and easy deployment.
Sliding and static rail systems
The R720 and R720xd support both sliding rails and static rails. Both rails have a new slim rail design
that supports the wide system chassis.
The sliding rails (shown in Figure 14) allow the system to be fully extended out of the rack for service
and are available with or without the optional CMA.
Figure 14. Sliding rails with optional CMA
Page: 43
44 PowerEdge R720 and R720xd Technical Guide
The static rails (shown in Figure 15) support a wider variety of racks than the sliding rails, but do not
support serviceability in the rack and are not compatible with the CMA.
Figure 15. Static rails
One key factor in selecting the proper rails is identifying the type of rack in which they will be
installed. Both the sliding rails and the static rails support tool-less mounting in 19”-wide, EIA-310-E
compliant square hole and unthreaded round-hole 4-post racks. Both also support tooled mounting
in threaded hole 4-post racks, but only the static rails, as the more universal solution, support
mounting in 2-post (Telco) racks.
Table 23 lists the rack rail systems that the R720 and R720xd support.
Table 23. Supported rack rail system
System
Rail
identifier
Mounting interface
Rail
type
Rack types supported
4-post 2-post
Square Round Thread Flush Center
R720/R720xd
B6 ReadyRails II Sliding    X X
B4 ReadyRails Static     
For detailed information about rail dimensions, see the
Rack rail specifications section in Appendix A. For more information on installing the T620 in a rack,
see the Rack Installation Instructions on Dell.com/Support/Manuals.
Page: 44
45 PowerEdge R720 and R720xd Technical Guide
Cable management arm
The optional cable management arm (CMA) for the R720 and R720xd organizes and secures the
cords and cables exiting the back of the server and unfolds to allow the server to extend out of the
rack without having to detach the cables. Some key features of the CMA include:
 Large U-shaped baskets to support dense cable loads
 Open vent pattern for optimal airflow
 Ability to be mounted on either side
 Use of hook-and-loop straps rather than plastic tie wraps to eliminate the risk of cable damage
during cycling
 Low-profile fixed tray to both support and retain the CMA in its fully closed position
 Ability to mount the CMA and tray without the use of tools, due to snap-in designs
For more information on installing the R720 and R720xd in a rack, see the Rack Installation
Instructions on Dell.com/Support/Manuals.
Page: 45
46 PowerEdge R720 and R720xd Technical Guide
10 Operating systems and virtualization
The Dell PowerEdge R720 and R720xd support a wide range of industry-standard operating systems
and virtualization software.
Supported operating systems
Table 24 lists the primary operating systems supported on the R720 and R720xd. For the latest
information on supported operating systems, see Dell.com/OSsupport.
Table 24. Primary operating system support
Operating System Platform Edition
Red Hat Enterprise Linux 5.8
1 x32
x64
N/A
Red Hat Enterprise Linux 6.3
2
x64 N/A
Red Hat Enterprise Linux for HPC x64 N/A
SUSE Linux Enterprise Server 11 SP2 x64 N/A
SUSE Linux Enterprise Server 10 SP4 x64 N/A
Microsoft Windows Server 2012 x64
Standard
Data center
Microsoft Windows Server 2012 R2
x64
(with Microsoft
Hyper-V role enabled)
Standard
Data center
Microsoft Windows Small Business Server 2011
3
x64
Standard
Premium add-on
Microsoft Windows Server 2008 with SP2
x86
Web
Standard
Enterprise
x64
(with Microsoft
Hyper-V role enabled)
Web
Standard
Enterprise
Data center
Microsoft Windows Server 2008 R2 with SP1
x64
(with Hyper-V role
enabled)
Web
Standard
Enterprise
Data center
HPC
1
RHEL 5.7 is the minimum supported version. Current drop in box option is RHEL 5.8.
2
RHEL 6.1 is the minimum supported version. Current factory install is RHEL 6.3.
3
Not validated for use with GPUs.
Page: 46
47 PowerEdge R720 and R720xd Technical Guide
Support of the operating systems listed in Table 25 is limited to a virtual environment as a guest
operating system. Please contact the software vendor for additional support or questions about
running the operating system in a virtualized environment.
Table 25. Virtual guest operating system support
Operating System Platform Edition
Microsoft Windows 2003
1
x86 Web
Microsoft Windows 2003 R2 with SP2
1
x86
Standard
Enterprise
x64
Standard
Enterprise
Data center
1
Not validated for use with AMD
®
GPUs
Supported virtualization
One of the key features for virtualization on the R720 and R720xd is the support for a failsafe
hypervisor. By running the hypervisor on an optional SD card and installing a backup copy on the
other mirrored SD card, you can protect against hardware failure and maximize virtualization uptime.
Table 26 highlights the virtualization support for the R720 and R720xd.
Table 26. Virtualization support
Operating systems Install version
Factory
options
Internal dual SD
module install
support
VMware
vSphere v5.0 U1 ESXi (one version) DIB Yes
vSphere v5.1 ESXi (one version) DIB Yes
vSphere v5.1 U1 ESXi (one version) DIB Yes
vSphere v5.5 ESXi (one version) DIB Yes
Red Hat
1
Enterprise Virtualization 3.1 N/A DIB Yes
Citrix XenServer v6.1 N/A DIB No
FI = factory install; DIB = drop in box
1
No OpenManage support; drop-in-box license registration card only
Page: 47
48 PowerEdge R720 and R720xd Technical Guide
11 Dell OpenManage systems management
Whether your IT environment consists of a few servers or a few thousand servers,
Dell OpenManage systems management solutions provide comprehensive management for
evolving IT environments. OpenManage is based on open standards and provides agent-based and
agent-free server lifecycle management functionality for Dell PowerEdge servers. OpenManage
solutions help you automate and streamline essential hardware management tasks.
The advanced management capabilities of Dell OpenManage also integrates into offerings from
other popular systems management solutions that you may already use, making Dell platforms easy
to manage and deploy in any IT environment. This ensures your IT services are available when your
business needs them. If you have already standardized on offerings from industry leaders, such as
BMC Software, Microsoft, Symantec™, VMware, or other vendors, you can leverage OpenManage
integration and connections developed for use with your existing systems management framework
to efficiently manage Dell servers, storage, business-client PCs, and network devices.
Start with a firm foundation for efficient hardware management using OpenManage tools, utilities,
and management consoles. OpenManage systems management solutions consist of a combination
of embedded management features and software products that help you automate and simplify the
entire server lifecycle: deploy, update, monitor, and maintain. OpenManage solutions are
innovatively designed for simplicity and ease of use to help you reduce complexity, save time,
achieve efficiency, control costs, and empower productivity.
Systems management solutions
Dell systems management solutions include a wide variety of tools, products, and services that
enable you to leverage an existing systems management framework. As shown in Figure 16, Dell
systems management solutions are centered around OpenManage server management, featuring
iDRAC7 with Lifecycle Controller.
Figure 16. Dell systems management solutions
Page: 48
49 PowerEdge R720 and R720xd Technical Guide
OpenManage systems management
The Dell OpenManage systems management portfolio includes powerful hardware and software
management tools and consoles. OpenManage simplifies the lifecycle of deploying, updating,
monitoring and maintaining your Dell PowerEdge servers.
iDRAC7 with Lifecycle Controller
The Integrated Dell Remote Access Controller 7 (iDRAC7) with Lifecycle Controller is the heart of the
second generation of Dell PowerEdge server embedded management functionality. In addition to
enabling agent-free management, iDRAC7 with Lifecycle Controller provides remote access to the
system—whether or not there is a functioning operating system running on the server. These
embedded features improve all aspects of a typical server lifecycle. Table 27 describes the functions
and benefits of iDRAC7 with Lifecycle Controller.
Table 27. iDRAC7 with Lifecycle Controller functions and benefits
Feature Function Benefit
Out of band
(OOB)
iDRAC7 offers real-time OOB
discovery, inventory, deployment
monitoring, alerting and updates for
servers and internal storage
Manage servers independent of the OS type
or status, even if an OS is not installed
Single code base
All server types have the same
embedded management hardware
and firmware
Simplified and consistent maintenance
across server platforms
Dedicated
GigE port
(PowerEdge
rack and tower
systems)
Gigabit Ethernet replaces 10/100 on
predecessor iDRAC6
Fast throughput for better performance;
compatibility with setup for switches
Email alerts
Simplified, more informative, and
expanded coverage than previous
versions of iDRAC
More detail allows IT administrators to be
more efficient in diagnosing and remediating
an issue; alerts include a direct, embedded
URL in the email notification to further speed
resolution
vFlash media Enabled with iDRAC7 Enterprise Allows for use of a non-Dell SD card
Enhanced power
management
Integration with Intel Node Manager
provides data center level power
monitoring and capping
(requires iDRAC7 Enterprise)
Fine tune data center power policies,
capping, and usage; report on historical
power usage by rack, row or room using
Power Center Manager (new)
Page: 49
50 PowerEdge R720 and R720xd Technical Guide
Feature Function Benefit
Electronic
licensing
Upgrades to iDRAC7 Express or
iDRAC7 Enterprise by software
licensing key and license portal (may
require installation of hardware option
for 300–500 series servers)
Digital license installed in factory; free 30-
day trial versions are available; uses a license
management portal versus paper-based
licenses and simplifies license management.
For most server models, embedded server
management and electronic licensing
enables feature enhancements that do not
require installation of additional hardware or
system downtime.
iDRAC7 feature comparison
iDRAC7 Enterprise is available for the PowerEdge R720 and R720xd, and Dell also offers an option of
iDRAC7 Express. A detailed feature comparison for iDRAC7 Enterprise and iDRAC7 Express is shown
in Table 28.
Table 28. Feature comparison for iDRAC7 Express and Enterprise
Feature (function)
iDRAC7
Enterprise
iDRAC7
Express
Local configuration with Lifecycle Controller GUI ∞ ∞
IPMI 2.0 ∞ ∞
Embedded diagnostics ∞ ∞
Local OS install ∞ ∞
Local updates ∞ ∞
Driver pack ∞ ∞
Shared NIC (LOM) ∞ ∞
Remote update ∞ ∞
Power control ∞ ∞
Encryption ∞ ∞
Crash screen capture
1
∞ ∞
IPv6 ∞ ∞
Auto-discovery ∞ ∞
Auto-recovery ∞ ∞
Web GUI ∞ ∞
Remote CLI ∞ ∞
Local/SSH CLI ∞ ∞
Serial redirection ∞ ∞
Remote configuration ∞ ∞
Email alerts ∞ ∞
SNMP alerts ∞ ∞

Question & answers

There are no questions about the Dell PowerEdge R720 yet.

Ask a question about the Dell PowerEdge R720

Have a question about the Dell PowerEdge R720 but cannot find the answer in the user manual? Perhaps the users of ManualsCat.com can help you answer your question. By filling in the form below, your question will appear below the manual of the Dell PowerEdge R720. Please make sure that you describe your difficulty with the Dell PowerEdge R720 as precisely as you can. The more precies your question is, the higher the chances of quickly receiving an answer from another user. You will automatically be sent an e-mail to inform you when someone has reacted to your question.