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

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394 SAN Boot Implementation and Best Practices Guide for IBM System Storage
6 Chapter 6. iSCSI SAN Boot implementation with IBM System Storage DS5000 Storage area networks (SANs) have rapidly gained popularity over traditional client-server configurations due to their ability to efficiently handle data. Typically, SANs require Fibre Channel, a specialized “fabric” or communication backbone. However, Fibre Channel is much more expensive than the standard Internet Protocol (IP) backbone that exists in nearly every enterprise. iSCSI, a new standard for storage networks, encapsulates standard SCSI commands to communicate with disks and transmits them over the existing IP network. Not only is iSCSI seen as a lower cost alternative to Fibre Channel, but it is also expected to outperform Fibre Channel as Ethernet speeds jump from 100 Mb/sec to 1 Gb and 10 Gb in the near future. In this chapter, we describe SAN Boot implementation using the IBM DS5000 series of storage subsystems with iSCSI. © Copyright IBM Corp. 2012. All rights reserved. 395
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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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Attention: To create a system (clus
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Cluster characteristics: ► In SAN
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IBM Storwize V7000 RAID configurati
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Figure 5-16 Available MDisks Tip: A
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After creating storage pools, the f
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Creating a generic volume We choose
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5.4.6 Creating Fiber Channel hosts
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Figure 5-27 Select host-port The dr
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5.4.7 Mapping SAN Boot volume to th
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3. Add the desired WWPN to the righ
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Figure 5-38 Node connectivity Verif
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5.5 Host configuration In this sect
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4. Select Configuration Settings, a
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Figure 5-47 Scan Fibre Devices Tip:
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9. Change Selectable Boot Settings
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During POST, you can see QLogic rep
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2. Select the adapter that you want
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5.5.4 Configuring an Emulex adapter
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Figure 5-66 Scan Fibre Devices Tip:
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12.During post, after Emulex banner
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Tip: Before setting up SAN Boot for
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7. Browse to the source (media) of
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5.7.1 Multipath I/O Figure 5-77 Ins
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4. After the setup completes, you a
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► You can also verify that SDDDSM
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Perform the following steps to migr
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3. Select the Remote volume (2145 f
Page 360 and 361: Figure 5-91 vSphere Login To manage
Page 362 and 363: 3. You can verify the multipathing
Page 364 and 365: 5.9.1 SAN Boot using SUSE Linux Ent
Page 366 and 367: 6. Set the clock and time zone. Nex
Page 368 and 369: 8. Click the Partitioning link to c
Page 370 and 371: 10.You see a confirmation dialogue
Page 372 and 373: 14.Change the Boot loader to reflec
Page 374 and 375: 16.Click Ok. Now the installer will
Page 376 and 377: 5. Click Next to proceed with the i
Page 378 and 379: The next window displays additional
Page 380 and 381: 8. Select Review and modify partiti
Page 382 and 383: 10.Select TimeZone and click Next.
Page 384 and 385: 12.Click Next to start the installa
Page 386 and 387: 14.The server will boot off of the
Page 388 and 389: Example 5-3 multipathd command line
Page 390 and 391: 5.10 SAN Boot for AIX You can SAN B
Page 392 and 393: 8. Select 2 for IPL Configuration M
Page 394 and 395: 12.After the correct IP parameters
Page 396 and 397: 16.Select 2 for Normal Mode Boot, a
Page 398 and 399: 10.Press 5 key to Select Boot Optio
Page 400 and 401: 14.Proceed with Normal Boot, as sho
Page 402 and 403: 3. Press 2 to Change/Show Installat
Page 404 and 405: 7. If you do not see the disk that
Page 406 and 407: 11.Press 1 to start the installatio
Page 408 and 409: 5.10.5 SDDPCM 7. After the system f
Page 412 and 413: 6.1 iSCSI overview The Internet Sma
Page 414 and 415: 6.1.2 iSCSI target 6.1.3 Nodes 6.1.
Page 416 and 417: 6.2 iSCSI and DS5000 storage subsys
Page 418 and 419: 6.4 Step-by-step iSCSI SAN Boot imp
Page 420 and 421: 3. Disable any onboard or internal
Page 422 and 423: 3. From the Fast!UTIL Options windo
Page 424 and 425: Figure 6-10 Initiator IP Settings 6
Page 426 and 427: 9. Change the Adapter Boot Mode to
Page 428 and 429: 3. You are presented with a panel f
Page 430 and 431: 6. You are presented with a confirm
Page 432 and 433: c. A wizard will guide you through
Page 434 and 435: 2. Next, we create the host definit
Page 436 and 437: c. In the next window, we specify t
Page 438 and 439: Figure 6-30 Select Host type f. Fin
Page 440 and 441: . In the Define Additional Mapping
Page 442 and 443: 2. From the Add Host Port Identifie
Page 444 and 445: 3. From the Fast!UTIL Options windo
Page 446 and 447: 6.5 Operating system installation A
Page 448 and 449: 4. The next window displays additio
Page 450 and 451: Figure 6-47 Master Boot Record (MBR
Page 452 and 453: 7. Follow the installation wizard u
Page 454 and 455: Figure 6-51 SUSE Linux Enterprise S
Page 456 and 457: 5. The next panel displays the iSCS
Page 458 and 459: 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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