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Dell PowerVault MD3200 and MD3220 Storage Arrays Deployment Guide book.book Page 1 Thursday, July 18, 2013 5:56 PM
Notes, Cautions, and Warnings NOTE: A NOTE indicates important information that helps you make better use of your computer. CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. __________________ © 2013 Dell Inc. Trademarks used in this text: Dell™, the DELL logo, PowerEdge™, PowerVault™, and OpenManage™ are trademarks of Dell Inc. Intel® is a registered trademarks of Intel Corporation in the U.S. and other countries. Microsoft®, Windows®, Windows Server®, MS-DOS®, and Internet Explorer® are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries. Red Hat® and Red Hat Enterprise Linux® are registered trademarks of Red Hat, Inc. in the United States and other countries. SUSE® is a registered trademark of Novell, Inc. in the United States and other countries. 2013 - 07 Rev. A02 book.book Page 2 Thursday, July 18, 2013 5:56 PM
Contents 3 Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . 7 System Requirements . . . . . . . . . . . . . . . . . . . 7 Management Station Requirements . . . . . . . . . 7 Introduction to Storage Arrays . . . . . . . . . . . . . . 8 2 Hardware Installation . . . . . . . . . . . . . . . 11 Planning the Storage Configuration. . . . . . . . . . . 11 Connecting the Storage Array . . . . . . . . . . . . . . 12 Cabling the Storage Array . . . . . . . . . . . . . . . . 12 Redundant and Non-Redundant Configurations . . 13 Single Controller Configurations . . . . . . . . . . 13 Dual Controller Configurations . . . . . . . . . . . 16 Cabling PowerVault MD1200 Series Expansion Enclosures . . . . . . . . . . . . . . . . . . . . . . . . 22 Expanding With Previously Configured PowerVault MD1200 Series Expansion Enclosures . . . . . . . . . . . . . . . . . . . . . 22 Expanding With New PowerVault MD1200 Series Expansion Enclosures. . . . . . . . . . . . 24 3 Installing PowerVault MD Storage Software . . . . . . . . . . . . . . . . . . . . . . . . . 27 Graphical Installation (Recommended) . . . . . . 28 book.book Page 3 Thursday, July 18, 2013 5:56 PM
4 Contents Console Installation. . . . . . . . . . . . . . . . . 29 Silent Installation . . . . . . . . . . . . . . . . . . 29 Upgrading PowerVault MD Storage Software . . . . . 30 4 Post Installation Tasks. . . . . . . . . . . . . . 31 Before You Begin. . . . . . . . . . . . . . . . . . . . . 31 iSCSI Configuration Worksheet . . . . . . . . . . . . . 32 IPv4 Settings—Worksheet . . . . . . . . . . . . . 33 IPv6 Settings—Worksheet . . . . . . . . . . . . . 34 Configuring iSCSI on Your Storage Array . . . . . . . . 35 Automatic Configuration Using the Modular Disk Configuration Utility . . . . . . . . . . . . . . 36 Post Connection Establishment Steps. . . . . . . . . . 39 Guidelines For Configuring Your Network For iSCSI . . 40 Microsoft Windows Host Setup . . . . . . . . . . . . . 40 Using A DHCP server . . . . . . . . . . . . . . . . 40 Using static IP addressing . . . . . . . . . . . . . 40 Using A DNS server. . . . . . . . . . . . . . . . . 41 Using A WINS Server . . . . . . . . . . . . . . . . 41 Linux Host Setup . . . . . . . . . . . . . . . . . . . . . 42 Using DHCP . . . . . . . . . . . . . . . . . . . . . 42 Using A Static IP Address . . . . . . . . . . . . . 42 book.book Page 4 Thursday, July 18, 2013 5:56 PM
Contents 5 5 Uninstalling PowerVault MD Storage Software . . . . . . . . . . . . . . . . . . 45 Uninstalling MD Storage Software From Windows . . 45 Uninstalling MD Storage Software From Linux. . . . . 46 6 Getting Help. . . . . . . . . . . . . . . . . . . . . . . 47 Locating Your System Service Tag . . . . . . . . . . . 47 Contacting Dell . . . . . . . . . . . . . . . . . . . . . 47 Documentation Feedback . . . . . . . . . . . . . . . . 48 A Appendix—Load Balancing. . . . . . . . . . . 49 Windows Load Balance Policy . . . . . . . . . . . . . 49 Round Robin With Subset . . . . . . . . . . . . . 49 Least Queue Depth With Subset . . . . . . . . . . 50 Changing Load Balance Policies in Windows Sever 2008 . . . . . . . . . . . . . . . . 50 Setting Load Balance Policies in Linux. . . . . . . 51 B Appendix—Manual Configuration of iSCSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Step 1: Discover the Storage Array (Out-of-band Management Only) . . . . . . . . . . . . 54 Default Management IPv4 Port Settings . . . . . . 54 Automatic Storage Array Discovery . . . . . . . . 55 Manual Storage Array Discovery . . . . . . . . . 56 Setting Up the Array . . . . . . . . . . . . . . . . 56 book.book Page 5 Thursday, July 18, 2013 5:56 PM
6 Contents Step 2: Configure the iSCSI Ports on the Storage Array. . . . . . . . . . . . . . . . . . . . . . . 57 Step 3: Perform Target Discovery From the iSCSI Initiator . . . . . . . . . . . . . . . . . . . . 59 Step 4: Configure Host Access. . . . . . . . . . . . . . 61 Understanding CHAP Authentication . . . . . . . . . . 62 What is CHAP? . . . . . . . . . . . . . . . . . . . 62 Target CHAP. . . . . . . . . . . . . . . . . . . . . 62 Mutual CHAP . . . . . . . . . . . . . . . . . . . . 62 CHAP Definitions . . . . . . . . . . . . . . . . . . 63 Step 5: Configure CHAP Authentication on the Storage Array (Optional) . . . . . . . . . . . . . . . . . 63 Configuring Target CHAP Authentication on the Storage Array . . . . . . . . . . . . . . . . . . 63 Configuring Mutual CHAP Authentication on the Storage Array . . . . . . . . . . . . . . . . . . 64 Step 6: Configure CHAP Authentication on the Host Server (Optional) . . . . . . . . . . . . . . . . . . 65 Step 7: Connect to the Target Storage Array From the Host Server. . . . . . . . . . . . . . . . . . . . . . 69 Step 8: (Optional) Set Up In-Band Management. . . . . 72 book.book Page 6 Thursday, July 18, 2013 5:56 PM
Introduction 7 1 Introduction This guide provides information about deploying Dell PowerVault MD3200 and Dell PowerVault MD3220 storage arrays. The deployment process includes: • Hardware installation • Modular Disk Storage Manager (MDSM) software installation • Initial system configuration Other information includes system requirements, storage array organization, and utilities. NOTE: For more information on product documentation, see dell.com/support/manuals. MDSM enables an administrator to configure and monitor storage arrays for optimum usability. The version of MDSM included on the PowerVault MD series resource media can be used to manage both the PowerVault MD3200 series and the earlier PowerVault MD series storage arrays. MDSM is compatible with both Microsoft Windows and Linux operating systems. System Requirements Before installing and configuring the PowerVault MD3200 series hardware and software, ensure that a supported operating system is installed and the minimum system requirements are met. For more information, see the Support Matrix at dell.com/support/manuals. Management Station Requirements A management station uses MDSM to configure and manage storage arrays across the network. A management station must meet the following minimum system requirements: • Intel Pentium or an equivalent processor (1333 MHz or faster) with 512 MB RAM (1024 MB recommended). • 1 GB disk space. book.book Page 7 Thursday, July 18, 2013 5:56 PM
8 Introduction • Display resolution of 1024x768 with 16 million colors (1280x1024 32-bit recommended). • Microsoft Windows, Red Hat Enterprise Linux, or SUSE Linux Enterprise Server. NOTE: Supported operating systems include both native and guest operating systems. NOTE: Supported hypervisors include Microsoft Hyper-V, Citrix XenServer, and VMware ESX and ESXi. For information about the supported versions, see the Support Matrix at dell.com/support/manuals. • Administrator or equivalent permissions. Introduction to Storage Arrays An enclosure containing physical disks accessed through RAID controller modules is called a storage array. A storage array includes various hardware components, such as physical disks, RAID controller modules, fans, and power supplies, gathered into enclosures. One or more host servers attached to the storage array can access the data on the storage array. You can also establish multiple physical paths between the host(s) and the storage array so that loss of any single path (for example, through failure of a host server port) does not result in loss of access to data on the storage array. The storage array is managed by MDSM running on a: • Host server—On a host server system, MDSM and the storage array communicate management requests and event information using SAS connections. • Management station—On a management station, MDSM communicates with the storage array either through an Ethernet connection to the storage array management port or through an Ethernet connection to a host server. The Ethernet connection passes management information between the management station and the storage array using SAS connections. Using MDSM, you can configure the physical disks in the storage array into logical components called disk groups and then divide the disk groups into virtual disks. Disk groups are created in the unconfigured capacity of a storage array. Virtual disks are created in the free capacity of a disk group. book.book Page 8 Thursday, July 18, 2013 5:56 PM
Introduction 9 Unconfigured capacity comprises physical disks not already assigned to a disk group. When a virtual disk is created using unconfigured capacity, a disk group is automatically created. If the only virtual disk in a disk group is deleted, the disk group is also deleted. Free capacity is space in a disk group that is not assigned to any virtual disk. Data is written to the physical disks in the storage array using RAID technology. RAID levels define the way in which data is written to physical disks. Different RAID levels offer different levels of accessibility, redundancy, and capacity. You can set a specified RAID level for each disk group and virtual disk on your storage array. For more information about using RAID and managing data in your storage solution, see the Owner’s Manual at dell.com/support/manuals. book.book Page 9 Thursday, July 18, 2013 5:56 PM
10 Introduction book.book Page 10 Thursday, July 18, 2013 5:56 PM
Hardware Installation 11 2 Hardware Installation Before using this guide, ensure that you review the instructions in the: • Getting Started Guide—The Getting Started Guide that shipped with the storage array provides information to configure the initial setup of the system. • Planning section of the Owner’s Manual—The planning section provides information about important concepts you must know before setting up your storage solution. See the Owner’s Manual at dell.com/support/manuals. Planning the Storage Configuration Consider the following before installing your storage array: • Evaluate data storage needs and administrative requirements. • Calculate availability requirements. • Decide the frequency and level of backups, such as weekly full backups with daily partial backups. • Consider storage array options, such as password protection and e-mail alert notifications for error conditions. • Design the configuration of virtual disks and disk groups according to a data organization plan. For example, use one virtual disk for inventory, a second for financial and tax information, and a third for customer information. • Decide whether to allow space for hot spares, which automatically replace failed physical disks. book.book Page 11 Thursday, July 18, 2013 5:56 PM
12 Hardware Installation Connecting the Storage Array The storage array is connected to a host using two hot-swappable RAID controller modules. The RAID controller modules are identified as RAID controller module 0 and RAID controller module 1. For more information, see the Getting Started Guide. Each RAID controller module has four SAS In port connectors that provide SAS connections to the host or node. Each RAID controller module also contains an Ethernet management port and a SAS Out port connector. The Ethernet management port allows you to install a dedicated management station (server or stand-alone system). The SAS Out port allows you to connect the storage array to optional expansion enclosures for additional storage capacity. For more information, see the Getting Started Guide. Each Dell PowerVault MD3200 series storage array can be expanded to a maximum of 120 (or 192, if enabled through the Premium Feature activation) physical disks through a maximum of seven PowerVault MD1200 series expansion enclosures. NOTE: When you connect a host server to a storage array SAS In port connector, any Out port connector of the server's host bus adapter (HBA) can be used. Cabling the Storage Array You can cable the storage array to host servers with: • Single path data configuration—A single path configuration allows you to connect a maximum of eight hosts. This is a non-redundant configuration. • Dual path data configuration—A dual path configuration allows you to connect a maximum of four hosts. Choose the data configuration based on: • Number of hosts required • Level of data redundancy required book.book Page 12 Thursday, July 18, 2013 5:56 PM
Hardware Installation 13 Redundant and Non-Redundant Configurations Non-redundant configurations are configurations that provide only a single data path from a host to the storage array. This type of configuration is only recommended for non-critical data storage. Path failure from a failed or removed cable, a failed HBA, or a failed or removed RAID controller module results in loss of host access to storage on the storage array. Redundancy is established by installing separate data paths between the host and the storage array, in which each path is set to one of the two RAID controller modules installed in the storage array. Redundancy protects the host from losing access to data in the event of path failure, because both RAID controller modules can access all the disks in the storage array. Single Controller Configurations Figure 2-1 through Figure 2-3 show two and four hosts, each connected to only one RAID controller module. The hosts can share storage space but without redundant paths, if one path were to fail, the server on that path would be disconnected from the storage array. Figure 2-1. Two Hosts Connected to a Single Controller Server 1 Server 2 Storage array Corporate, public, or private network book.book Page 13 Thursday, July 18, 2013 5:56 PM
14 Hardware Installation Figure 2-2. Two Hosts Connected to a Single Controller Server 1 Server 2 Storage array Corporate, public, or private network book.book Page 14 Thursday, July 18, 2013 5:56 PM
Hardware Installation 15 Figure 2-3. Four Hosts Connected to a Single Controller Server 1 Server 2 Storage array Corporate, public, or private network Server 3 Server 4 book.book Page 15 Thursday, July 18, 2013 5:56 PM
16 Hardware Installation Dual Controller Configurations Figure 2-4 through Figure 2-6 show two and four hosts, each connected to two RAID controller modules. Since each host has redundant paths, loss of a single path would still allow access to the storage array through the alternate path. Figure 2-4. Two Hosts Connected to Two Controllers Server 1 Server 2 Storage array Corporate, public, or private network book.book Page 16 Thursday, July 18, 2013 5:56 PM
Hardware Installation 17 Figure 2-5. Four Hosts Connected to Two Controllers Server 1 Server 2 Storage array Corporate, public, or private network Server 3 Server 4 book.book Page 17 Thursday, July 18, 2013 5:56 PM
18 Hardware Installation Figure 2-6. Four Hosts Connected to Two Controllers Server 1 Server 2 Storage array Corporate, public, or private network Server 3 Server 4 book.book Page 18 Thursday, July 18, 2013 5:56 PM
Hardware Installation 19 Figure 2-7 shows eight hosts, each connected to only one RAID controller module. This configuration allows the maximum number of hosts that may be connected, but provides no redundancy. Figure 2-7. Eight Hosts Connected to Two Controllers Server 1 Server 2 Storage array Corporate, public, or private network Server 3 Server 4 Server 8 Up to 8 hosts book.book Page 19 Thursday, July 18, 2013 5:56 PM
20 Hardware Installation Figure 2-8 and Figure 2-9 show up to four cluster nodes connected to two RAID controller modules. Since each cluster node has redundant paths, loss of a single path would still allow access to the storage array through the alternate path. Figure 2-8. Four Cluster Nodes Connected to Two Controllers Four cluster nodes Storage array Corporate, public, or private network book.book Page 20 Thursday, July 18, 2013 5:56 PM
Hardware Installation 21 Figure 2-9. Four Cluster Nodes Connected to Two Controllers Four cluster nodes Storage array Corporate, public, or private network book.book Page 21 Thursday, July 18, 2013 5:56 PM
22 Hardware Installation Cabling PowerVault MD1200 Series Expansion Enclosures You can expand the capacity of your PowerVault MD3200 series storage array by adding PowerVault MD1200 series expansion enclosures. You can expand the physical disk pool to a maximum of 120 (or 192, if enabled using the Premium Feature activation) physical disks using a maximum of seven expansion enclosures. Expanding With Previously Configured PowerVault MD1200 Series Expansion Enclosures Use this procedure if your expansion enclosure is directly attached to and configured on a Dell PowerEdge RAID Controller (PERC) H800 adapter. Data from virtual disks created on a PERC H800 adapter cannot be directly migrated to a PowerVault MD3200 series storage array or to a PowerVault MD1200 series expansion enclosure connected to a PowerVault MD3200 series storage array. CAUTION: If a PowerVault MD1200 series enclosure that was previously attached to PERC H800 adapter is used as an expansion enclosure to a PowerVault MD3200 series storage array, the physical disks of the expansion enclosure are reinitialized and data is lost. You must backup all data on the expansion enclosure before attempting the expansion. To attach previously configured PowerVault MD1200 series expansion enclosures to the PowerVault MD3200 series storage array: 1 Back up all data on the expansion enclosure(s). 2 Upgrade the expansion enclosure firmware to the latest version available at dell.com/support while the enclosure is still attached to the PERC H800 controller. Windows systems users can reference the DUP .exe package and Linux kernel users can reference the DUP.bin package. 3 Ensure that the storage array software is installed and up to date before adding the expansion enclosure(s). For more information, see the Support Matrix at dell.com/support/manuals. book.book Page 22 Thursday, July 18, 2013 5:56 PM
Hardware Installation 23 a Install the software and driver package included on the PowerVault MD series resource media. For information about installing the software, see "Installing PowerVault MD Storage Software" on page 27. b Update the storage array RAID controller module firmware and NVSRAM to the latest versions available at dell.com/support, using PowerVault MDSM. c Click Tools Upgrade RAID Controller Module Firmware in the Enterprise Management Window (EMW). 4 Stop all I/O and turn off the system and attached units. a Stop all I/O to the array and turn off the host systems attached to the storage array. b Turn off the storage array. c Turn off the expansion enclosure(s) in the affected system. 5 Cable the expansion enclosure(s) to the storage array. 6 Turn on attached units: a Turn on the expansion enclosure(s). Wait for the enclosure status LED to light blue. b Turn on the storage array and wait for the status LED to indicate that the unit is ready: • If the status LEDs are solid amber, the storage array is still coming online. • If the status LEDs are blinking amber, there is an error that can be viewed using the PowerVault MDSM. • If the status LEDs are solid blue, the storage array is ready. c When the storage array is online and ready, turn on any attached host systems. 7 After the PowerVault MD1200 series expansion enclosure is configured as an expansion enclosure of the storage array, restore the data that was backed up in step 1. After the PowerVault MD1200 series expansion enclosures are online, they can be accessed as a part of the storage array. book.book Page 23 Thursday, July 18, 2013 5:56 PM
24 Hardware Installation Expanding With New PowerVault MD1200 Series Expansion Enclosures Perform the following steps to attach new PowerVault MD1200 series expansion enclosures to a PowerVault MD3200 series storage array: 1 Before adding the expansion enclosure(s), ensure that the storage array software is installed and is up to date. For more information, see the Support Matrix at dell.com/support/manuals. a Install the software and driver package included on the PowerVault MD series resource media. For information about installing the software, see "Installing PowerVault MD Storage Software" on page 27. b Set up the PowerVault MD1200 series expansion enclosure(s). For information about setting up the PowerVault MD1200 series expansion enclosure(s), see the Owner’s Manual at dell.com/support/manuals. c Using PowerVault MDSM, update the RAID controller module firmware and NVSRAM to the latest versions available on dell.com/support. d Click Tools Upgrade RAID Controller Module Firmware from the Enterprise Management Window (EMW). 2 Stop I/O and turn off the system and attached units: a Stop all I/O to the storage array and turn off affected host systems attached to the storage array. b Turn off the storage array. c Turn off any expansion enclosure(s) in the affected system. 3 Cable the expansion enclosure(s) to the storage array. 4 Turn on attached units: a Turn on the expansion enclosure(s). Wait for the enclosure status LED to light blue. b Turn on the storage array and wait for the status LED to indicate that the unit is ready: • If the status LEDs are solid amber, the storage array is still coming online. book.book Page 24 Thursday, July 18, 2013 5:56 PM
Hardware Installation 25 • If the status LEDs are blinking amber, there is an error that can be viewed using PowerVault MDSM. • If the status LEDs are solid blue, the storage array is ready. c After the storage array is online and ready, turn on any attached host systems. 5 Using MDSM, update all attached expansion enclosure firmware if it is out of date: a From the EMW, select the enclosure that you want to update and enter the Array Management Window (AMW). b Click AdvancedMaintanence DownloadEMM Firmware. c Select Select All to update all the attached expansion enclosures simultaneously. book.book Page 25 Thursday, July 18, 2013 5:56 PM
26 Hardware Installation book.book Page 26 Thursday, July 18, 2013 5:56 PM
Installing PowerVault MD Storage Software 27 3 Installing PowerVault MD Storage Software The Dell PowerVault MD series resource media contains software and drivers for both Linux and Microsoft Windows operating systems. The root of the media contains a readme.txt file covering changes to the software, updates, fixes, patches, and other important data applicable to both the Linux and Windows operating systems. The readme.txt file also specifies requirements for accessing documentation, information regarding versions of the software on the media, and system requirements for running the software. For more information on supported hardware and software for PowerVault systems, see the Support Matrix located at dell.com/support/manuals. NOTE: It is recommended that you install all the latest updates available at dell.com/support. The PowerVault MD series resource media storage software installer provides features that include the core software and providers. The core software feature includes the host-based storage agent, multipath driver, and PowerVault MD Storage Manager application used to configure, manage, and monitor the storage array solution. The providers feature include providers for the Microsoft Virtual Disk Service (VDS) and Microsoft Volume Shadow-Copy Service (VSS) framework. NOTE: For more information about the Microsoft VDS and Microsoft VSS providers, see the Owner's Manual at dell.com/support/manuals. NOTE: To install the software on a Windows or Linux system, you must have administrative or root privileges. The PowerVault MD series resource media offers the following three installation methods: • Graphical Installation (Recommended)—This is the recommended installation procedure for most users. The installer presents a graphical wizard-driven interface that allows customization of components to be installed. book.book Page 27 Thursday, July 18, 2013 5:56 PM
28 Installing PowerVault MD Storage Software • Console Installation—This installation procedure is useful for Linux users who do not want to install an X-Window environment on their supported Linux platform. • Silent Installation—This installation procedure is useful for users who want to create scripted installations. Graphical Installation (Recommended) The PowerVault MD Storage Manager application configures, manages, and monitors the storage array. To install the PowerVault storage software: 1 Insert the PowerVault MD series resource media. Depending on your operating system, the installer may launch automatically. If the installer does not launch automatically, navigate to the root directory of the installation media (or downloaded installer image) and run the md_launcher.exe file. For Linux-based systems, navigate to the root of the resource media and run the autorun file. NOTE: By default, Red Hat Enterprise Linux mounts the resource media with the –noexec mount option, which does not allow you to run executable files. To change this setting, see the Readme file in the root directory of the installation media. 2 Select Install MD Storage Software. 3 Read and accept the license agreement. 4 Select one of the following installation options from the Install Set dropdown menu: • Full (recommended)—Installs the PowerVault MD Storage Manager (client) software, host-based storage agent, multipath driver, and hardware providers. • Host Only—Installs the host-based storage agent and multipath drivers. • Management—Installs the management software and hardware providers. • Custom—Allows you to select specific components. 5 Select the PowerVault MD storage array model(s) you are setting up to serve as data storage for this host server. 6 Choose whether to start the event monitor service automatically when the host server reboots or manually. book.book Page 28 Thursday, July 18, 2013 5:56 PM
Installing PowerVault MD Storage Software 29 NOTE: This option is applicable only to Windows client software installation. 7 Confirm the installation location and choose Install. 8 If prompted, reboot the host server once the installation completes. 9 Start MD Storage Manager and discover the array(s). 10 If applicable, activate any premium features purchased with your storage array. If you purchased premium features, see the printed activation card shipped with your storage array. NOTE: The MD Storage Manager installer automatically installs the required drivers, firmware, and operating system patches/hotfixes to operate your storage array. These drivers and firmware are also available at dell.com/support. See the Support Matrix at dell.com/support/manuals for any additional settings and/or software required for your specific storage array. Console Installation NOTE: Console installation only applies to Linux systems that are not running a graphical environment. The autorun script in the root of the resource media detects when there is no graphical environment running and automatically starts the installer in a text-based mode. This mode provides the same options as graphical installation. Silent Installation To run silent installation on a Windows system: 1 Copy the custom_silent.properties file in the /windows folder of the installation media or image to a writable location on the host server. 2 Modify the custom_silent.properties file to reflect the features, models and installation options to be used. Then, save the file. 3 Once the custom_silent.properties file is revised to reflect your specific installation, run the following command to begin the silent installation: mdss_install.exe –f <host_server_path>\ custom_silent.properties To run silent installation on a Linux system: NOTE: On Red Hat Enterprise Linux 6 operating systems, run the following script from the root directory to install prerequisite packages. book.book Page 29 Thursday, July 18, 2013 5:56 PM
30 Installing PowerVault MD Storage Software # md_prereq_install.sh 1 Copy the custom_silent.properties file in the /windows folder of the installation media or image to a writable location on the host server. 2 Modify the custom_silent.properties file to reflect the features, models and installation options to be used. 3 Save the file. 4 Once the custom_silent.properties file is revised, run the following command to begin the installation: ./mdss_install.bin –f <host_server_path>/custom_silent.properties Upgrading PowerVault MD Storage Software To upgrade from a previous version of the PowerVault MD Storage Manager application, uninstall the previous version (see "Uninstalling MD Storage Software From Windows" on page 45), and then follow the instructions in "Installing PowerVault MD Storage Software" on page 27 to install the new version. book.book Page 30 Thursday, July 18, 2013 5:56 PM
Post Installation Tasks 31 4 Post Installation Tasks Before using the storage array for the first time, complete the initial configuration tasks in the order shown. These tasks are performed using the MD Storage Manager. NOTE: If Dynamic Host Configuration Protocol (DHCP) is not used, initial configuration using the management station must be performed on the same physical subnet as the storage array. Additionally, during initial configuration, at least one network adapter must be configured on the same IP subnet as the storage array’s default management port (192.168.128.101 or 192.168.128.102). After initial configuration, the management ports are configured using MD Storage Manager and the management station’s IP address can be changed back to the previous settings. Before You Begin NOTE: Before you begin configuring iSCSI, it is recommended that you fill out the IPv4 or IPv6 iSCSI configuration worksheet available in this document, see "IPv4 Settings—Worksheet" on page 33 and "IPv6 Settings—Worksheet" on page 34. Gathering this type of information about your network before starting the configuration steps helps you to complete the process more efficiently. iSCSI Configuration Terminology Table 4-1. Standard Terminology Used in iSCSI Configuration Term Definition CHAP (Challenge Handshake Authentication Protocol) An optional security protocol used to control access to an iSCSI storage system by restricting use of the iSCSI data ports on both the host server and storage array. For more information on the types of CHAP authentication supported, see "Understanding CHAP Authentication" on page 62. Host or host server A server connected to the storage array using iSCSI ports. Host server port SCSI port on the host server used to connect it to the storage array. book.book Page 31 Thursday, July 18, 2013 5:56 PM
32 Post Installation Tasks iSCSI Configuration Worksheet The "IPv4 Settings—Worksheet" on page 33 and "IPv6 Settings—Worksheet" on page 34 helps you plan your configuration. Recording host server and storage array IP addresses at a single location enables you to configure your setup faster and more efficiently. "Guidelines For Configuring Your Network For iSCSI" on page 40 provides general network setup guidelines for both Microsoft Windows and Linux environments. It is recommended that you review these guidelines before completing the worksheet. iSCSI initiator The iSCSI-specific software installed on the host server that controls communications between the host server and the storage array. iSCSI host port The iSCSI port (two per controller) on the storage array. iSNS (Microsoft Internet Storage Naming Service) An automated discovery, management and configuration Storage Naming Service) tool used by some iSCSI devices. Management station The system from which you manage your host server/storage array configuration. Storage array The enclosure containing the storage data accessed by the host server. Target An iSCSI port on the storage array that accepts and responds to requests from the iSCSI initiator installed on the host server. Table 4-1. Standard Terminology Used in iSCSI Configuration Term Definition book.book Page 32 Thursday, July 18, 2013 5:56 PM
Post Installation Tasks 33 IPv4 Settings—Worksheet Mutual CHAP Secret Target CHAP Secret A B host server PowerVault MD36x0i 192.168.131.101 (In 1 default) 192.168.128.101 (management network port) 192.168.130.102 (In 0 default) 192.168.131.102 (In 1 default) 192.168.128.102 (management network port) If you need additional space for more than one host server, use an additional sheet. iSCSI port 1 iSCSI port 2 Management port Management port Static IP address (host server) Subnet Default gateway (should be different for each NIC) A ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ Static IP address (host server) Subnet Default gateway B iSCSI controller 0, In 0 iSCSI controller 0, In 1 Management port cntrl 0 iSCSI controller 1, In 0 iSCSI controller 1, In 1 Management port cntrl 1 ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ 192.168.130.101 (In 0 default) book.book Page 33 Thursday, July 18, 2013 5:56 PM
34 Post Installation Tasks IPv6 Settings—Worksheet Mutual CHAP Target CHAP A B If you need additional space for more than one host server, use an additional sheet. Link local IP address Routable IP address Subnet prefix Gateway A Host server Host iSCSI port 1 ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ Link local IP address Routable IP address Subnet prefix Gateway Host iSCSI port 2 ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ ___ . ___ . ___ . ___ iSCSI controller 0, In 0 IP address Routable IP address 1 Routable IP address 2 Router IP address B iSCSI controller 0, In 1 IP address Routable IP address 1 Routable IP address 2 Router IP address FE80 : 0000 : 0000 : 0000 : ____ : ____ : ____ : ____ ____ : ____ : ____ : ____ : ____ : ____ : ____ : ____ ____ : ____ : ____ : ____ : ____ : ____ : ____ : ____ ____ : ____ : ____ : ____ : ____ : ____ : ____ : ____ FE80 : 0000 : 0000 : 0000 : ____ : ____ : ____ : ____ ____ : ____ : ____ : ____ : ____ : ____ : ____ : ____ ____ : ____ : ____ : ____ : ____ : ____ : ____ : ____ ____ : ____ : ____ : ____ : ____ : ____ : ____ : ____ PowerVault MD36x0i book.book Page 34 Thursday, July 18, 2013 5:56 PM
Post Installation Tasks 35 Configuring iSCSI on Your Storage Array The following sections contain step-by-step instructions for configuring iSCSI on your storage array. However, before you begin, it is important to understand where each of these steps occur in relation to your host server or storage array environment. The following table shows each iSCSI configuration step and where it occurs. iSCSI controller 1, In 0 IP address Routable IP address 1 Routable IP address 2 Router IP address FE80 : 0000 : 0000 : 0000 : ____ : ____ : ____ : ____ ____ : ____ : ____ : ____ : ____ : ____ : ____ : ____ ____ : ____ : ____ : ____ : ____ : ____ : ____ : ____ ____ : ____ : ____ : ____ : ____ : ____ : ____ : ____ iSCSI controller 1, In 1 IP address Routable IP address 1 Routable IP address 2 Router IP address FE80 : 0000 : 0000 : 0000 : ____ : ____ : ____ : ____ ____ : ____ : ____ : ____ : ____ : ____ : ____ : ____ ____ : ____ : ____ : ____ : ____ : ____ : ____ : ____ ____ : ____ : ____ : ____ : ____ : ____ : ____ : ____ book.book Page 35 Thursday, July 18, 2013 5:56 PM
36 Post Installation Tasks Table 4-2. Host Server Vs. Storage Array NOTE: It is recommended that you use the PowerVault Modular Disk Configuration Utility (MDCU) for iSCSI configuration. The PowerVault MDCU wizards guides you through the configuration steps described above. If you want to perform a manual configuration, see "Appendix—Manual Configuration of iSCSI" on page 53. Automatic Configuration Using the Modular Disk Configuration Utility NOTE: If MDCU is not installed, it can be installed from the MD series resource media. The MDCU provides a consolidated approach for configuring the iSCSI network of host servers and iSCSI-based storage arrays using a wizard-driven interface. This utility also enables the user to configure the iSCSI sessions of the host server according to the best practices and to achieve load-balanced paths with the storage array iSCSI host ports. If you select Launch the MDCU after reboot during the installation of the host software, the utility automatically launches after the next host server reboot. This utility can also be launched manually. The utility has a context sensitive online help to guide you through each step of the wizard. This Step is Performed on the Host Server Using the Microsoft or Linux iSCSI Initiator This Step is Performed on the Storage Array Using PowerVault MD Storage Manager 1 Discover the storage array 2 Configure the iSCSI ports on the storage array 3 Perform target discovery from the iSCSI initiator 4 Configure host access 5 (Optional) Configure CHAP authentication on the storage array 6 (Optional) Configure CHAP authentication on the host server 7 Connect to the storage array from the host server 8 (Optional) Set up in-band management book.book Page 36 Thursday, July 18, 2013 5:56 PM
Post Installation Tasks 37 The MDCU performs: • Storage array configuration • Host configuration Storage Array Configuration Before a host iSCSI initiator and an iSCSI-based storage array can communicate, they must be configured with information such as which IP addresses and authentication method to use. Since iSCSI initiators establish connections with an already configured storage array, the first task is to configure your storage arrays to make them available for iSCSI initiators. This utility requires network access to the management ports of the storage arrays you wish to configure. You must have a properly functioning network infrastructure before attempting to configure your storage arrays. If your storage arrays are already configured, you can skip directly to the host configuration. This configuration task generally involves the following steps: 1 Discover available storage array(s) for configuration. 2 Select a storage array to configure. 3 Set a storage array name and password. 4 Configure the IP protocols and addresses for the management ports. 5 Configure the IP protocols and addresses for the iSCSI ports. 6 Specify the CHAP authentication method. 7 Apply the settings after reviewing a summary. 8 Repeat the process starting from step 2 to configure additional arrays. Host Configuration (Host Connectivity Configuration) After you have completed configuring your iSCSI-based storage arrays, the next task is to run this utility on all hosts that need to access the storage arrays. Depending on your network configuration, your host may be the same machine you use to manage your storage arrays, or it may be on a completely separate network. The option to configure a host is disabled if the machine on which the utility is running does not have an iSCSI initiator or the required driver components installed. When the option is disabled, the utility also displays an book.book Page 37 Thursday, July 18, 2013 5:56 PM
38 Post Installation Tasks informational message. If you are running the utility on a host which is not connected to the iSCSI–based storage array (or which you do not wish to connect to the array), the informational message can be ignored. The task generally involves the following steps: 1 Discover available storage array(s) for connection. 2 Select a storage array. 3 Specify the CHAP secret. 4 Select the iSCSI ports the host's initiator uses to log on. 5 Repeat the process starting from step 2 to connect to additional arrays. 6 Repeat these steps on each host that needs access to the storage array(s). Before Starting the Configuration Process Before you start configuring the storage array or host connectivity, it is recommended that you fill out the iSCSI configuration worksheet to help you plan your configuration. You may need to use several worksheets depending on your configuration. Keep the following guidelines in mind for the storage array and host configuration: • For optimal performance, ensure your network configuration.See the storage array's Support Matrix at dell.com/support/manuals. • If your host has multiple network interfaces, it is recommended that each network interface uses a separate subnet. • For redundancy in a dual controller (duplex) configuration, ensure each host network interface is configured to connect to both storage array controllers. • For optimal load balancing, ensure each host network interface that is used for iSCSI traffic is configured to connect to each storage array controller. • It is recommended that each host network interface only establishes one iSCSI session per storage array controller. NOTE: The utility tries to follow the guidelines for the host connectivity whenever possible based on the available host network interfaces and their connectivity with the iSCSI host ports of the storage array. book.book Page 38 Thursday, July 18, 2013 5:56 PM
Post Installation Tasks 39 Configure the Storage Array Using MDCU To configure the iSCSI-based storage array(s) using the MDCU: 1 Launch the utility (if it is not launched automatically) from the server with access to the management ports of the storage array(s) to be configured. For Windows, click StartAll ProgramsDellMD Storage SoftwareModular Disk Configuration Utility. For Linux, click the MDCU icon on the desktop or navigate to the /opt/dell/mdstoragesoftware/mdconfigurationutility directory in a terminal window and run PowerVault MDCU. The MDCU automatically discovers all the available storage arrays. 2 In the Discover MD Arrays window, select the iSCSI storage array you want to configure. 3 In the Selected Array window, review current port and session information. 4 Click Config Wizard, to start the iSCSI configuration wizard. 5 Complete the steps in Config Wizard to configure your iSCSI storage array. 6 In the Array Configuration Summary window, review and apply your configuration settings. 7 Click Create iSCSI Sessions, to create host-to-storage array communication. Repeat for all host-to-array mappings you want to implement 8 Verify that communication is established between the storage array and host server. NOTE: For more information on MDCU, see the MDCU online help. Post Connection Establishment Steps After iSCSI connectivity is established between the host server(s) and the storage array, you can create virtual disks on the storage array using MD Storage Manager and these virtual disks can be utilized by the host server(s). For more information about storage planning and using MD Storage Manager, see the Administrator's Guide at dell.com/support/manuals. book.book Page 39 Thursday, July 18, 2013 5:56 PM
40 Post Installation Tasks Guidelines For Configuring Your Network For iSCSI This section provides general guidelines for setting up your network environment and IP addresses for use with the iSCSI ports on your host server and storage array. In order for hosts to communicate with management and/or iSCSI ports of storage arrays, local NICs must be configured with IP addresses capable of communication with the addresses listed in the IPv4/IPv6 worksheet. Your specific network environment may require different or additional steps than shown here, so make sure you consult with your system administrator before performing this setup. Microsoft Windows Host Setup To set up a Windows host network, you must configure the IP address and netmask of each iSCSI port connected to the storage array. The specific steps depend on whether you are using a Dynamic Host Configuration Protocol (DHCP) server, static IP addressing, Domain Name System (DNS) server, or Windows Internet Name Service (WINS) server. NOTE: The server IP addresses must be configured for network communication to the same IP subnet as the storage array management and iSCSI ports. Using A DHCP server 1 In the Control Panel, select Network connections or Network and Sharing Center and then click Manage network connections. 2 Right-click the network connection you want to configure and select Properties. 3 On the General tab (for a local area connection) or the Networking tab (for all other connections), select Internet Protocol (TCP/IP), and then click Properties. 4 Select Obtain an IP address automatically, then click OK. Using static IP addressing 1 In the Control Panel, select Network connections or Network and Sharing Center and then click Manage network connections. book.book Page 40 Thursday, July 18, 2013 5:56 PM
Post Installation Tasks 41 2 Right-click the network connection you want to configure and select Properties. 3 On the General tab (for a local area connection) or the Networking tab (for all other connections), select Internet Protocol (TCP/IP), and then click Properties. 4 Select Use the following IP address and enter the IP address, subnet mask, and default gateway addresses. Using A DNS server 1 In the Control Panel, select Network connections or Network and Sharing Center and then click Manage network connections. 2 Right-click the network connection you want to configure and select Properties. 3 On the General tab (for a local area connection) or the Networking tab (for all other connections), select Internet Protocol (TCP/IP), and then click Properties. 4 Select Obtain DNS server address automatically or enter the preferred and alternate DNS server IP addresses and click OK. Using A WINS Server NOTE: If you are using a DHCP server to allocate WINS server IP addresses, you do not need to add WINS server addresses. 1 In the Control Panel, select Network connections. 2 Right-click the network connection you want to configure and select Properties. 3 On the General tab (for a local area connection) or the Networking tab (for all other connections), select Internet Protocol (TCP/IP), and then click Properties. 4 Select Advanced WINS tab and click Add. 5 In the TCP/IP WINS server window, type the IP address of the WINS server and click Add. 6 To enable use of the Lmhosts file to resolve remote NetBIOS names, select Enable LMHOSTS lookup. book.book Page 41 Thursday, July 18, 2013 5:56 PM
42 Post Installation Tasks 7 To specify the location of the file that you want to import into the Lmhosts file, select Import LMHOSTS and then select the file in the Open dialog box. 8 Enable or disable NetBIOS over TCP/IP. If using Microsoft Windows Server 2008 Core Version, use the netsh interface command to configure the iSCSI ports on the host server. Linux Host Setup To set up a Linux host network, you must configure the IP address and netmask of each iSCSI port connected to the storage array. The specific steps depend on whether you are configuring TCP/IP using DHCP or configuring TCP/IP using a static IP address. NOTE: The server IP addresses must be configured for network communication to the same IP subnet as the storage array management and iSCSI ports. Using DHCP If you are using DHCP (root users only): 1 Edit the /etc/sysconfig/network file: NETWORKING=yes HOSTNAME=mymachine.mycompany.com 2 Edit the configuration file for the connection you want to configure, either /etc/sysconfig/network-scripts/ifcfg-ethX (for Red Hat Enterprise Linux) or /etc/sysconfig/network/ifcfg-eth-id-XX:XX:XX:XX:XX (for SUSE Enterprise Linux). BOOTPROTO=dhcp Also, verify that an IP address and netmask are not defined. 3 Restart network services using the following command: /etc/init.d/network restart Using A Static IP Address If you are using a static IP address (root users only) 1 Edit the /etc/sysconfig/network file as follows: book.book Page 42 Thursday, July 18, 2013 5:56 PM
Post Installation Tasks 43 NETWORKING=yes HOSTNAME=mymachine.mycompany.com GATEWAY=255.255.255.0 2 Edit the configuration file for the connection you want to configure, either /etc/sysconfig/network-scripts/ifcfg-ethX (for Red Hat Enterprise Linux) or /etc/sysconfig/network/ifcfg-eth-id-XX:XX:XX:XX:XX (for SUSE Enterprise Linux). BOOTPROTO=static BROADCAST=192.168.1.255 IPADDR= 192.168.1.100 NETMASK=255.255.255.0 NETWORK= 192.168.1.0 ONBOOT=yes TYPE=Ethernet HWADDR=XX:XX:XX:XX:XX:XX GATEWAY=192.168.1.1 3 Restart network services using the following command: /etc/init.d/network restart book.book Page 43 Thursday, July 18, 2013 5:56 PM
44 Post Installation Tasks book.book Page 44 Thursday, July 18, 2013 5:56 PM
Uninstalling PowerVault MD Storage Software 45 5 Uninstalling PowerVault MD Storage Software Uninstalling MD Storage Software From Windows Use the Change/Remove Program feature to uninstall the Modular Disk Storage Software (MDSM) from Microsoft Windows operating systems other than Microsoft Windows Server 2008: 1 Double-click Add or Remove Programs from the Control Panel. 2 Select Dell MD32xxi storage software from the list of programs. 3 Click Change/Remove. The Uninstall Complete window is displayed. 4 Follow the instructions on screen. 5 Select Yes to restart the system, and then click Done. Use the following procedure to uninstall Modular Disk Storage software from Windows Server 2008 GUI versions: 1 Double-click Programs and Features from the Control Panel. 2 Select MD Storage Software from the list of programs. 3 Click Uninstall/Change. The Uninstall Complete window is displayed. 4 Follow the instructions on screen. 5 Select Yes to restart the system, then click Done. Use the following procedure to uninstall PowerVault Modular Disk Storage Software on Windows Server 2008 Core versions: 1 Navigate to the Dell\MD Storage Software\Uninstall Dell Modular Disk 32xxi Storage Software directory. book.book Page 45 Thursday, July 18, 2013 5:56 PM
46 Uninstalling PowerVault MD Storage Software NOTE: By default, MD Storage Manager is installed in the \Program Files\Dell\MD Storage Software directory. If another directory was used during installation, navigate to that directory before beginning the uninstallation procedure. 2 From the installation directory, type the following command and press <Enter>: Uninstall Modular Disk Storage 3 From the Uninstall window, click Next and follow the instructions on the screen. 4 Select Yes to restart the system, then click Done. Uninstalling MD Storage Software From Linux 1 By default, PowerVault MD Storage Manager is installed in the /opt/dell/mdstoragemanager directory. If another directory was used during installation, navigate to that directory before beginning the uninstallation procedure. 2 From the installation directory, open the Uninstall Dell MD Storage Software directory. 3 Run the file Uninstall Dell MD Storage Software.exe. 4 From the Uninstall window, click Next, and follow the instructions on the screen. While the software is uninstalling, the Uninstall window is displayed. When the uninstall procedure is complete, the Uninstall Complete window is displayed. 5 Click Done. book.book Page 46 Thursday, July 18, 2013 5:56 PM
Getting Help 47 6 Getting Help Locating Your System Service Tag Your system is identified by a unique Express Service Code and Service Tag number. The Express Service Code and Service Tag are found on the front of the system by pulling out the information tag. This information is used by Dell to route support calls to the appropriate personnel. Contacting Dell NOTE: Dell provides several online and telephone-based support and service options. If you do not have an active Internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer-service issues: 1 Go to dell.com/contactdell. 2 Select your country or region from the interactive world map. When you select a region, the countries for the selected regions are displayed. 3 Select the appropriate language under the country of your choice. 4 Select your business segment. The main support page for the selected business segment is displayed. 5 Select the appropriate option depending on your requirement. NOTE: If you have purchased a Dell system, you may be asked for the Service Tag. book.book Page 47 Thursday, July 18, 2013 5:56 PM
48 Getting Help Documentation Feedback If you have feedback for this document, write to documentation_feedback@dell.com. Alternatively, you can click on the Feedback link in any of the Dell documentation pages, fill up the form, and click Submit to send your feedback. book.book Page 48 Thursday, July 18, 2013 5:56 PM
Appendix—Load Balancing 49 A Appendix—Load Balancing Windows Load Balance Policy Multi-path drivers select the I/O path to a virtual disk through a specific RAID controller module. When the multi-path driver receives a new I/O, the driver tries to find a path to the current RAID controller module that owns the virtual disk. If that path cannot be found, the multi-path driver migrates the virtual disk ownership to the secondary RAID controller module. When multiple paths to the RAID controller module that owns the virtual disk exist, you can choose a load balance policy to determine which path is used to process I/O. Multiple options for setting the load balance policies let you optimize I/O performance when mixed host interfaces are configured. You can choose one of the following load balance policies to optimize I/O performance: • Round robin with subset • Least queue depth with subset Round Robin With Subset The round-robin with subset I/O load balance policy routes I/O requests, in rotation, to each available data path to the RAID controller module that owns the virtual disks. This policy treats all paths to the RAID controller module that owns the virtual disk equally for I/O activity. Paths to the secondary RAID controller module are ignored until ownership changes. The basic assumption for the round-robin policy is that the data paths are equal. With mixed host support, the data paths might have different bandwidths or different data transfer speeds. book.book Page 49 Thursday, July 18, 2013 5:56 PM
50 Appendix—Load Balancing Least Queue Depth With Subset The least queue depth with subset policy is also known as the least I/Os, or least requests, policy. This policy routes the next I/O request to a data path that has the least outstanding I/O requests queued. For this policy, an I/O request is simply a command in the queue. The type of command or the number of blocks that are associated with the command are not considered. The least queue depth with subset policy treats large block requests and small block requests equally. The data path selected is in the path group of the RAID controller module that owns the virtual disk. Changing Load Balance Policies in Windows Sever 2008 Load balancing with the PowerVault MD3200 series is only available for Windows Server 2008 and later versions of the operating system. You can change the load balance policies from the default round robin with subset by using one of the following: • Device Manager options • Disk Management options Changing the Load Balance Policy Using Windows Server 2008 Device Manager Options 1 Right-click My Computer and select Manage to open the Computer Management window from the host desktop. 2 Click Device Manager to show the list of devices attached to the host. 3 Right-click the multi-path disk device for which you want to set load balance policies, then select Properties. 4 Select the load balance policy you want to set for this disk device from the MPIO tab. book.book Page 50 Thursday, July 18, 2013 5:56 PM
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