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

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3.3.1 Fibre Channel architecture Fibre Channel architecture provides various communication protocols on the storage unit. The units that are interconnected are referred to as nodes. Each node has one or more ports. A DS8000 storage subsystem is a node in a Fibre Channel network. Each port on a storage unit Fibre Channel host adapter is a Fibre Channel port. A host is also a node in a Fibre Channel network. Each port attaches to a serial transmission medium that provides duplex communication with the node at the other end of the medium. DS8000 storage subsystem architecture supports three basic interconnection topologies or network structures for open systems: ► Arbitrated loop ► Point-to-point ► Switched-fabric Tip: DS8000 supports the arbitrated loop, point-to-point, and switched-fabric topologies. To change the topology, configure the ports. For a list of longwave and shortwave adapter cables and their distances, see the IBM System Storage DS8700 and DS8800 Introduction and Planning Guide, GC27-2297. 3.3.2 Zoning considerations Follow these best practice zoning considerations: ► Plan to have two fabrics to prevent outages. ► Use an individual zone for each single initiator. ► Respect the zoneset and zone naming conventions. ► Use soft zones instead of hard zones. ► Implement a policy to back up the Switch and ZoneSet configuration. ► Consider implementing core / edge architecture. ► Keep the firmware updated. ► Plan a baseline for SAN structure. ► Always check the compatibility matrix. 3.4 Host Bus Adapter (HBA) configuration In this section, we first describe the general requirements for SAN Boot and then continue with with the setup procedures. As explained in Chapter 1, “Introduction to SAN Boot” on page 1, the basic steps to have a SAN Boot in place are as follows: ► Check if your host, cards, and storage can support the SAN Boot. ► Update your server and cards using the supported firmware version. ► Create a LUN to be used as a bootable disk. ► Install your operating system following the procedure outlined in this chapter and/or vendor recommendation. 130 SAN Boot Implementation and Best Practices Guide for IBM System Storage
3.4.1 General requirements for attaching a host Before you attach a host to the DS8000, review this list of general requirements for all hosts. Then, review the specific host requirements described in the section for each host. Perform the following steps before you attach any host system to DS8000: 1. Go to the System Storage Interoperation Center (SSIC) website for the most current information about supported hosts, operating systems, adapters, and switches. 2. Obtain a list of supported host bus adapters (HBAs), firmware, and device driver information for your host system and host adapter on the System Storage Interoperation Center (SSIC) website. 3. Ensure that you can reference the following documentation: – The IBM System Storage DS8000 User's Guide from the System Storage CD that you receive with the storage unit – The IBM System Information Center link http://publib.boulder.ibm.com/eserver/ – The IBM System Storage DS8000 Information Center (SSIC) link as shown in Figure 3-9. http://publib.boulder.ibm.com/infocenter/ds8000ic/index.jsp Figure 3-9 SSIC web page 4. Have an IBM service support representative install the storage unit. 5. Check the LUN limitations for your host system and verify that there are enough adapters installed in the server to manage the total LUNs that you want to attach. 6. Review the “I/O adapter features” section of the IBM System Storage DS8000 Introduction and Planning Guide for detailed host adapter configuration rules and for information about host adapter and cable feature codes, host adapter balancing for optimal performance, and supported cabling distances. 7. Use your preferred DS8000 Management tool to define the host and I/O port configurations. Make sure that you define the worldwide port names for Fibre Channel ports. 8. Install the adapter driver with your host adapter or use the steps defined in “Downloading and installing a host adapter driver” to download and install an updated adapter driver. Chapter 3. SAN Boot implementation with IBM System Storage DS8000 131
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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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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 110 and 111: Tip: Note the name of the new mpp i
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 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
Page 160 and 161: 5. Press Ctrl-E or Alt-E to access
Page 162 and 163: Figure 3-31 shows the option to ena
Page 164 and 165: 13.A new panel will ask you to sele
Page 166 and 167: Figure 3-39 Select DVD to install O
Page 168 and 169: Logical subsystem A logical subsyst
Page 170 and 171: 3. Create the Volume Group to recei
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Page 174 and 175: Figure 3-49 Installing Windows 2008
Page 176 and 177: e. After rebooting the server, chec
Page 178 and 179: Redundancy: Avoiding a single point
Page 180 and 181: 12.Choose the Server Base Scenario
Page 182 and 183: 14.Click Partitioning and then Cust
Page 184 and 185: Figure 3-62 Creating root partition
Page 186 and 187: 19.Click the Install button to init
Page 188 and 189: 3. Edit the /etc/sysconfig/kernel,
Page 190 and 191: 8. Choose the language and click OK
Page 192 and 193: 17.Decide if you want to include ad
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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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