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

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5.3.1 Considerations before setting up SAN Boot For all physical components in the SAN, you must meet the minimum hardware and software requirements and ensure that other operating environment criteria are met: ► To obtain software installation and configuration information, planning information and host attachment information, see the following references: – For IBM SAN Volume Controller: http://publib.boulder.ibm.com/infocenter/svc/ic/index.jsp – For IBM Storwize V7000: http://publib.boulder.ibm.com/infocenter/storwize/ic/index.jsp ► Verify that the SAN switches and/or directors to which the IBM Storwize v7000 will connect, and the host bus adapters (HBAs), are at supported firmware levels: – For IBM SAN Volume Controller: http://www-01.ibm.com/support/docview.wss?rs=591&uid=ssg1S1003697 – For IBM Storwize V7000: http://www-01.IBM.com/support/docview.wss?uid=ssg1S1003703 ► Check the latest firmware’s configuration limits and restrictions: – For IBM SAN Volume Controller: http://www-01.ibm.com/support/docview.wss?uid=ssg1S1003704 – For IBM Storwize V7000: http://www-01.ibm.com/support/docview.wss?uid=ssg1S1003702 ► Check the status of the hardware in the SAN environment, including switches, hosts, HBAs, Hardware Management Console (HMC) and storage enclosures. ► Verify the firmware levels for the server’s BIOS, HBA, switches, and so on, before starting the operating system installation process. ► Collect and validate all installation media to be used in the installation process. ► Check the license requirements and agreements. ► Review any special requirements recommended by the hardware vendors regarding your SAN equipment, and follow best practice guidelines. ► Consider the TCP/IP address requirements of the storage. ► Verify the availability and validity of the host bus adapter's (HBA) driver packages. ► Make sure that the storage device and the switch are both powered up and completely initialized before making any configuration changes. ► Verify that a unique Domain ID and IP address have been configured on all the switches. ► Take a backup of the switch fabric configuration before making any configuration changes. ► Review the restrictions and limitations regarding SAN Boot specified in the latest operating system documentation. 5.3.2 SAN connectivity For Fibre Channel connections, the IBM Storwize V7000 nodes must always be connected to SAN switches only. Each node must be connected to each of the counterpart SANs that are in the redundant fabric. 286 SAN Boot Implementation and Best Practices Guide for IBM System Storage
Attention: All Fibre Channel devices must be connected through SAN fabrics and must not use direct connections. The recommended SAN configuration comprises a minimum of two fabrics. Configuring your SAN with at least two independent switches, or networks of switches, ensures a redundant fabric with no single point of failure. If one of the two SAN fabrics fails, the configuration is in a degraded mode, but is still valid. A SAN with only one fabric is a valid configuration but risks loss of access to data if the fabric fails. SANs with only one fabric are exposed to a single point of failure. A simple example of recommended SAN is shown in Figure 5-12. Figure 5-12 Recommended SAN Support: Configurations with more than four SANs are not supported. 5.3.3 Zoning Considerations for Storwize V7000 A SAN is configured into a number of zones. A device using the SAN can communicate only with devices that are included in the same zones that it, itself, is in. An IBM Storwize V7000 requires several distinct types of zones: a cluster zone, host zones, and disk zones. The intercluster zone is optional. The cluster zone contains all ports from all nodes in the cluster, unless you are using a dual-core fabric design. In a disk zone, the IBM Storwize V7000 nodes identify the storage systems. In brief, there must be three distinct zones in the fabric. ► Cluster zone: Create one zone per fabric with all of the Storwize V7000 ports cabled to this fabric to allow internode communication. Chapter 5. SAN Boot implementation with IBM SAN Volume Controller and IBM Storwize v7000 287
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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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Page 254 and 255: For additional XIV considerations,
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Page 266 and 267: Press [ENTER] to proceed. Would you
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Page 272 and 273: Optional OS packages (iSCSI support
Page 274 and 275: 4.9 Installation of AIX 6.1 for SAN
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Page 278 and 279: 4.9.3 Post operating system install
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Page 282 and 283: Example 4-25 shows the output when
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Page 288 and 289: 5.1 What storage virtualization is
Page 290 and 291: SAN Volume Controller offers these
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Page 294 and 295: Enclosures with 24 slots for 2.5-in
Page 296 and 297: Figure 5-8 shows the recommended ca
Page 298 and 299: To log in to an IBM SAN Volume Cont
Page 300 and 301: The functions used in the SAN Boot
Page 304 and 305: ► Host zone: Create a host zone f
Page 306 and 307: Attention: To create a system (clus
Page 308 and 309: Cluster characteristics: ► In SAN
Page 310 and 311: IBM Storwize V7000 RAID configurati
Page 312 and 313: Figure 5-16 Available MDisks Tip: A
Page 314 and 315: After creating storage pools, the f
Page 316 and 317: Creating a generic volume We choose
Page 318 and 319: 5.4.6 Creating Fiber Channel hosts
Page 320 and 321: Figure 5-27 Select host-port The dr
Page 322 and 323: 5.4.7 Mapping SAN Boot volume to th
Page 324 and 325: 3. Add the desired WWPN to the righ
Page 326 and 327: Figure 5-38 Node connectivity Verif
Page 328 and 329: 5.5 Host configuration In this sect
Page 330 and 331: 4. Select Configuration Settings, a
Page 332 and 333: Figure 5-47 Scan Fibre Devices Tip:
Page 334 and 335: 9. Change Selectable Boot Settings
Page 336 and 337: During POST, you can see QLogic rep
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Page 340 and 341: 5.5.4 Configuring an Emulex adapter
Page 342 and 343: Figure 5-66 Scan Fibre Devices Tip:
Page 344 and 345: 12.During post, after Emulex banner
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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
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Figure 5-91 vSphere Login To manage
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3. You can verify the multipathing
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5.9.1 SAN Boot using SUSE Linux Ent
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6. Set the clock and time zone. Nex
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8. Click the Partitioning link to c
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10.You see a confirmation dialogue
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14.Change the Boot loader to reflec
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16.Click Ok. Now the installer will
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5. Click Next to proceed with the i
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The next window displays additional
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8. Select Review and modify partiti
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10.Select TimeZone and click Next.
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12.Click Next to start the installa
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14.The server will boot off of the
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Example 5-3 multipathd command line
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5.10 SAN Boot for AIX You can SAN B
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8. Select 2 for IPL Configuration M
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12.After the correct IP parameters
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16.Select 2 for Normal Mode Boot, a
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10.Press 5 key to Select Boot Optio
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14.Proceed with Normal Boot, as sho
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3. Press 2 to Change/Show Installat
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7. If you do not see the disk that
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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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