SAN Boot Implementation and Best Practices Guide ... - IBM Redbooks

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Perform the following steps to migrate your existing SAN Boot images: 1. Shut down the host. 2. Perform the following configuration changes on the storage controller: a. Remove all the image-to-host mappings from the storage controller. b. Map the existing SAN Boot image and any other disks to the IBM Storwize V7000 system. 3. Zone one port of each host bus adapter (HBA) to one of the IBM Storwize V7000 system ports that is associated with the I/O group for the target image-mode volume. 4. Perform the following configuration changes on the IBM Storwize V7000 system: a. Create an image mode volume for the managed disk (MDisk) that contains the SAN Boot image. Use the MDisk unique identifier to specify the correct MDisk. b. Create a host object and assign it to the HBA port that is zoned to the IBM Storwize V7000 host-port. c. Map the image mode volume to the host. For example, you might map the boot disk to the host with SCSI LUN ID 0. d. Map the swap disk to the host, if required. For example, you might map the swap disk to the host with SCSI LUN ID 1. 5. Change the boot address of the host by performing the following steps: a. Restart the host and open the BIOS utility of the host during the booting process. b. Set the BIOS settings on the host to find the boot image at the worldwide port name (WWPN) of the node that is zoned to the HBA port. 6. Boot the host in single-path mode. 7. Uninstall any multipath driver that is not supported for IBM Storwize V7000 system hosts that run the applicable Windows Server operating system. 8. Install a supported multipath driver. 9. Restart the host in single-path mode to ensure that the supported multipath driver was properly installed. 10.Zone each HBA port to one port on each IBM Storwize V7000 system node. 11.Add HBA ports to the host object that you created in Step 5 b. 12.Configure the HBA settings on the host by using the following steps: a. Restart the host and open the host's BIOS utility during the booting process. b. Ensure that all HBA ports are boot-enabled and can see both nodes in the I/O group that contains the SAN Boot image. Configure the HBA ports for redundant paths. c. Exit the BIOS utility and finish booting the host. 13.Map any additional volumes to the host as required. Attention: In Microsoft Failover Clustering Windows Server 2008 allows boot disk and the cluster server disks to be hosted on the same bus. However, you need to use Storport miniport HBA drivers for this functionality to work. It is not a supported configuration in combination with drivers of other types (for example, SCSI port miniport or Full port drivers). 340 SAN Boot Implementation and Best Practices Guide for IBM System Storage
5.8 SAN Boot for VMware VMware ESX Server systems are using SAN Boot implementations increasingly, reaping its benefits like cost saving in diskless environments, better disaster recovery, redundancy, efficient use of storage space and ease of management, etc. In the following pages, we explain the steps to implement SAN Boot using VMware ESXi version 4.1 on a boot volume residing at an IBM Storwize V7000 storage system. Tip: Before setting up SAN Boot for VMware, review the information in 5.3.1, “Considerations before setting up SAN Boot” on page 286. Consider the following restrictions before starting the installation process: 1. For SAN Boot, each ESXi host must use a dedicated volume. 2. At the host system’s BIOS configuration, enable Legacy Boot under the Boot Menu. It will allow for discovery of Fibre Channel attached devices on VMware ESXi servers. 3. When installing on a host with UEFI BIOS, move the Legacy option to the top of the Boot Options to allow Fibre Channel attached devices be discovered after reboot of VMware ESXi servers. Perform the following to install ESXi 4.1.0: 1. Start the installation from VMware VMvisor Boot Menu, as shown in Figure 5-85. Figure 5-85 Boot Menu 2. Press Enter to install VMware ESXi 4.1.0, as shown in Figure 5-86. Figure 5-86 Installation panel Chapter 5. SAN Boot implementation with IBM SAN Volume Controller and IBM Storwize v7000 341
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ibm.com/redbooks Front cover SAN Bo
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Note: Before using this information
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2.8.4 Creating a host on DS5000 ser
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4.9.2 Activating and installing the
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viii SAN Boot Implementation and Be
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Trademarks IBM, the IBM logo, and i
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Scott Dybas is a Senior Software En
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xiv SAN Boot Implementation and Bes
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1.1 What SAN Boot is SAN Boot is a
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IBM System Storage devices use pers
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1.5 What switch zoning is Zoning is
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1.6.3 iSCSI HBA A storage unit is a
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Using software initiators offers th
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1.7.1 Basic concepts Multiple LUNs
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5. Boot into the host server system
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Concepts Thin provisioning provides
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1.8.2 Data protection and retention
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20 SAN Boot Implementation and Best
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2.1 DS5000 overview The DS5000 seri
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► Controller-based software: - St
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4. Select Do not Automatically Star
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8. As shown in Figure 2-7, enter th
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3. Select Planar SAS from the next
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2. Select System Settings from the
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3. Select Configuration Settings as
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Figure 2-20 Scan for Fibre Devices
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3. Select Selectable Boot Settings
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7. Verify that all the information
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2. We need to add the second storag
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4. Now enter 1 and press Enter as s
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8. Next we see the storage subsyste
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3. On the next panel, enter 01 and
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2.7.2 Adding a second path to the E
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2. When you click your storage subs
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4. Next we select the RAID level, p
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Figure 2-54 Creating the logical dr
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6. After the logical drive is creat
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4. We must now define the host port
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7. You are asked if this host will
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Figure 2-69 Assigning the LUN to th
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2. You can see a window, Manage Hos
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5. Now that you have the second pat
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2. To execute a script on the stora
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5. When the script completes, the r
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2. If the driver is found, it will
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Tip: The rest of the installation p
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2.9.4 Windows 2008 R2 SP1 Multipath
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5. We can also check the volume inf
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2.10.1 Installation steps We are go
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4. After clicking Hard Disks, we cl
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10.We now need to update the SUSE L
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13.When we are in the Boot Loader D
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We are going to install RHEL 5.5 se
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Figure 2-112 Customizing the Softwa
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Tip: Note the name of the new mpp i
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Tip: Make sure that you reboot the
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2.12 FC SAN Boot implementation for
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5. Confirm the ESXi installation by
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3. Verify drive size and click the
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You can find more information about
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5. Clean up the alternate disk volu
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d. Select Activate. The Activate Pa
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Example 2-13 Checking Storage WWPN
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NIM preparations We assume that the
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12.Be sure that the partition alrea
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The output of this comman, as shown
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4. Select your AIX version. The Fix
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3.1 DS8000 overview This section in
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Figure 3-1 IBM System Storage DS880
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Figure 3-3 DS8800 base frame with t
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3.2.3 DS command line interface for
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Select the DS8000 Subsystem and lau
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3.3.1 Fibre Channel architecture Fi
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3.4.2 Downloading and installing a
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3.4.3 BIOS configuration The first
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5. Select Configuration Settings, a
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6. From the Configuration Settings
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11.Change Selectable Boot Settings
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17.During POST, you see QLogic repo
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5. Press Ctrl-E or Alt-E to access
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Figure 3-31 shows the option to ena
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13.A new panel will ask you to sele
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Figure 3-39 Select DVD to install O
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Logical subsystem A logical subsyst
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3. Create the Volume Group to recei
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4. Start your machine and check if
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Figure 3-49 Installing Windows 2008
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e. After rebooting the server, chec
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Redundancy: Avoiding a single point
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12.Choose the Server Base Scenario
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14.Click Partitioning and then Cust
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Figure 3-62 Creating root partition
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19.Click the Install button to init
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3. Edit the /etc/sysconfig/kernel,
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8. Choose the language and click OK
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17.Decide if you want to include ad
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21.After finishing the Red Hat inst
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INITRD_MODULES="processor thermal a
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Implementation possibilities Implem
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5. Clean up the alternate disk volu
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Activating and installing the parti
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2 hdisk17 ...-W50050768014052D1-LA0
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► The NIM server is properly conf
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12.Be sure that the partition alrea
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Example 3-17 mpio_get_config -Av ou
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5. Check the configuration as shown
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11.Confirm the Install options by p
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16.To check the multipaths and the
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Tip: For /var/log, a separate parti
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4.1 Overview The XIV Storage System
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4.2.2 Host FC HBA configuration For
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5. The Adapter Settings menu is dis
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11.Select the boot LUN (in our case
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Figure 4-12 Emulex configuration pa
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7. After the BIOS has been enabled,
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12.After the Boot Entry confirmatio
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However, as seen in Figure 4-23, it
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Zoning guidelines There are many fa
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Important: For the host system to e
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If a new volume is to be created, E
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4.4.4 Assigning an XIV Volume to an
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To perform the same operation from
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Attention: For the installation of
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2. After xpyv is installed, the XIV
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At this point, your Windows host sh
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Figure 4-45 VMware VSphere client:
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For additional XIV considerations,
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Figure 4-49 illustrates the “Prep
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The tool asks for confirmation and
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After the Expert Partitioner panel
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Figure 4-55 displays the default Bo
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Figure 4-57 shows the SUSE Linux En
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Press [ENTER] to proceed. Would you
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Figure 4-59 illustrates how the mul
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Figure 4-61 illustrates the boot lo
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Optional OS packages (iSCSI support
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4.9 Installation of AIX 6.1 for SAN
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ii. By typing 77 two times, you can
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4.9.3 Post operating system install
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The following sections outline some
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Example 4-25 shows the output when
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Figure 4-67 MPIO Policy - Round Rob
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270 SAN Boot Implementation and Bes
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5.1 What storage virtualization is
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SAN Volume Controller offers these
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SAN Volume Controller 2145-8A4 Stor
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Enclosures with 24 slots for 2.5-in
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Figure 5-8 shows the recommended ca
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To log in to an IBM SAN Volume Cont
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The functions used in the SAN Boot
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5.3.1 Considerations before setting
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► Host zone: Create a host zone f
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Page 334 and 335: 9. Change Selectable Boot Settings
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Page 344 and 345: 12.During post, after Emulex banner
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Page 352 and 353: 4. After the setup completes, you a
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Page 360 and 361: Figure 5-91 vSphere Login To manage
Page 362 and 363: 3. You can verify the multipathing
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Page 366 and 367: 6. Set the clock and time zone. Nex
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Page 372 and 373: 14.Change the Boot loader to reflec
Page 374 and 375: 16.Click Ok. Now the installer will
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Page 380 and 381: 8. Select Review and modify partiti
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Page 384 and 385: 12.Click Next to start the installa
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Page 388 and 389: Example 5-3 multipathd command line
Page 390 and 391: 5.10 SAN Boot for AIX You can SAN B
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Page 398 and 399: 10.Press 5 key to Select Boot Optio
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11.Press 1 to start the installatio
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5.10.5 SDDPCM 7. After the system f
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394 SAN Boot Implementation and Bes
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6.1 iSCSI overview The Internet Sma
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6.1.2 iSCSI target 6.1.3 Nodes 6.1.
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6.2 iSCSI and DS5000 storage subsys
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6.4 Step-by-step iSCSI SAN Boot imp
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3. Disable any onboard or internal
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3. From the Fast!UTIL Options windo
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Figure 6-10 Initiator IP Settings 6
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9. Change the Adapter Boot Mode to
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3. You are presented with a panel f
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6. You are presented with a confirm
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c. A wizard will guide you through
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2. Next, we create the host definit
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c. In the next window, we specify t
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Figure 6-30 Select Host type f. Fin
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. In the Define Additional Mapping
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2. From the Add Host Port Identifie
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3. From the Fast!UTIL Options windo
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6.5 Operating system installation A
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4. The next window displays additio
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Figure 6-47 Master Boot Record (MBR
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7. Follow the installation wizard u
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Figure 6-51 SUSE Linux Enterprise S
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5. The next panel displays the iSCS
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Figure 6-56 Installation Settings 8
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Example 6-1 multipathd command line
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Example 6-3 Output of multipath -ll
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6.5.5 Failover/failback verificatio
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multipath -ll output does not show
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Online resources Help from IBM Thes
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discovery order 202 Disk Mirroring
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M Maintenance menu 187 Manage Host
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Switched-fabric 8, 130 switches 286
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SAN Boot Implementation and Best Pr
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