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

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Tip: Note the name of the new mpp initrd image that is created in your /boot directory. In this example, the name is mpp-2.6.18-194.el5.img. 6. Open the /boot/grub/menu.lst file with your preferred text editor. 7. Create a new boot entry by copying the first boot entry. Then edit the initrd line to point to the new initrd file so that the mpp initrd is booted. The new initrd line should look similar to Example 2-7. Make sure that the default is set to boot to the entry you just created (default=0 means the system is default to boot to the first boot entry). You need to change the (hd0,0), and the root to be the same as what is in your menu.lst. Example 2-7 Changes to the menu.lst default=0 timeout=5 splashimge=(hd0,0)/boot/grub/splash.xpm.gz hiddenmenu title Red Hat Enterprise Linux Server with mpp support (2.6.18-194.el5) root (hd0,0) kernel /boot/vmlinuz-2.6.18-194.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet initrd/boot/mpp-2.6.18-194.el5.img title Red Hat Enterprise Linux Server (2.6.18-194.el5) root (hd0,0) kernel /boot/vmlinuz-2.6.18-194.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet initrd/boot/initrd-2.6.18-194.el5.img 8. Reboot the system. 9. When the system is back up, verify that the mpp driver is installed correctly by running the following command from the command line (Example 2-8). Example 2-8 Verify the mpp driver ls -lR /proc/mpp/ 10.You should see that all the physical LUNs have been discovered and that the virtual LUNs have been created. For this example, because the environment has three physical LUNs, running ls -lR /proc/mpp/ produced three virtual LUNs: virtualLun0. ls -1R /proc/mpp also shows us that controller A is connected to one physical LUN: LUN0 (see Example 2-114). 94 SAN Boot Implementation and Best Practices Guide for IBM System Storage
Figure 2-114 Output of ls -lR /proc/mpp/ 2.11.2 Linux MPP driver This section describes how to install the MPP (RDAC) driver for a Linux configuration. Important: Before you install MPP, make sure that the partitions and LUNs are configured and assigned and that the correct HBA driver is installed. Complete the following steps to install the MPP driver: 1. Download the MPP driver package from the IBM DS4000/DS5000 System Storage Disk Support website. 2. Create a directory on the host and download the MPP driver package to that directory. 3. Uncompress the file by typing the following command: Example 2-9 Uncompress Linux MPP Driver # tar -zxvf rdac-LINUX-package_version-source.tar.gz Here, package_version is the SUSE Linux Enterprise Server or RHEL package version number. Result: A directory called linuxrdac-version# or linuxrdac is created. 4. Open the README that is included in the linuxrdac-version# directory. 5. In the README, find the instructions for building and installing the driver and complete all of the steps. Chapter 2. SAN Boot implementation with IBM System Storage DS5000 95
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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
Page 60 and 61: 4. Now enter 1 and press Enter as s
Page 62 and 63: 8. Next we see the storage subsyste
Page 64 and 65: 3. On the next panel, enter 01 and
Page 66 and 67: 2.7.2 Adding a second path to the E
Page 68 and 69: 2. When you click your storage subs
Page 70 and 71: 4. Next we select the RAID level, p
Page 72 and 73: Figure 2-54 Creating the logical dr
Page 74 and 75: 6. After the logical drive is creat
Page 76 and 77: 4. We must now define the host port
Page 78 and 79: 7. You are asked if this host will
Page 80 and 81: Figure 2-69 Assigning the LUN to th
Page 82 and 83: 2. You can see a window, Manage Hos
Page 84 and 85: 5. Now that you have the second pat
Page 86 and 87: 2. To execute a script on the stora
Page 88 and 89: 5. When the script completes, the r
Page 90 and 91: 2. If the driver is found, it will
Page 92 and 93: Tip: The rest of the installation p
Page 94 and 95: 2.9.4 Windows 2008 R2 SP1 Multipath
Page 96 and 97: 5. We can also check the volume inf
Page 98 and 99: 2.10.1 Installation steps We are go
Page 100 and 101: 4. After clicking Hard Disks, we cl
Page 102 and 103: 10.We now need to update the SUSE L
Page 104 and 105: 13.When we are in the Boot Loader D
Page 106 and 107: We are going to install RHEL 5.5 se
Page 108 and 109: Figure 2-112 Customizing the Softwa
Page 112 and 113: Tip: Make sure that you reboot the
Page 114 and 115: 2.12 FC SAN Boot implementation for
Page 116 and 117: 5. Confirm the ESXi installation by
Page 118 and 119: 3. Verify drive size and click the
Page 120 and 121: You can find more information about
Page 122 and 123: 5. Clean up the alternate disk volu
Page 124 and 125: d. Select Activate. The Activate Pa
Page 126 and 127: Example 2-13 Checking Storage WWPN
Page 128 and 129: NIM preparations We assume that the
Page 130 and 131: 12.Be sure that the partition alrea
Page 132 and 133: The output of this comman, as shown
Page 134 and 135: 4. Select your AIX version. The Fix
Page 136 and 137: 3.1 DS8000 overview This section in
Page 138 and 139: Figure 3-1 IBM System Storage DS880
Page 140 and 141: Figure 3-3 DS8800 base frame with t
Page 142 and 143: 3.2.3 DS command line interface for
Page 144 and 145: Select the DS8000 Subsystem and lau
Page 146 and 147: 3.3.1 Fibre Channel architecture Fi
Page 148 and 149: 3.4.2 Downloading and installing a
Page 150 and 151: 3.4.3 BIOS configuration The first
Page 152 and 153: 5. Select Configuration Settings, a
Page 154 and 155: 6. From the Configuration Settings
Page 156 and 157: 11.Change Selectable Boot Settings
Page 158 and 159: 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
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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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