IBM XIV Storage System Copy Services and Migration

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4. Click New for a new system variable.5. Create the XIV_XCLIUSER variable with the relevant user name.6. Click New again to create the XIV_XCLIPASSWORD variable with the relevant password.Setting environment variables in UNIXIf your are using a UNIX-based operating system export the environment variables as shownin Example 7-2 (which in this example is AIX®). In this example the user and passwordvariables are set to admin and adminadmin and then confirmed as being set.Example 7-2 Setting environment variables in UNIXroot@dolly:/tmp/XIVGUI# export XIV_XCLIUSER=adminroot@dolly:/tmp/XIVGUI# export XIV_XCLIPASSWORD=adminadminroot@dolly:/tmp/XIVGUI# env | grep XIVXIV_XCLIPASSWORD=adminadminXIV_XCLIUSER=adminTo make these changes permanent update the relevant profile, making sure that you exportthe variables to make them environment variables.7.4.2 Sample scriptsWith the environment variables set, a script or batch file like the one in Example 7-3 can berun from the shell or command prompt in order to define the data migration pairings.Example 7-3 Data migration definition batch filexcli -m 10.10.0.10 dm_define vol=MigVol_1 target=DS4200_CTRL_A lun=4source_updating=no create_vol=yes pool=test_poolxcli -m 10.10.0.10 dm_define vol=MigVol_2 target=DS4200_CTRL_A lun=5source_updating=no create_vol=yes pool=test_poolxcli -m 10.10.0.10 dm_define vol=MigVol_3 target=DS4200_CTRL_A lun=7source_updating=no create_vol=yes pool=test_poolxcli -m 10.10.0.10 dm_define vol=MigVol_4 target=DS4200_CTRL_A lun=9source_updating=no create_vol=yes pool=test_poolxcli -m 10.10.0.10 dm_define vol=MigVol_5 target=DS4200_CTRL_A lun=11source_updating=no create_vol=yes pool=test_poolxcli -m 10.10.0.10 dm_define vol=MigVol_6 target=DS4200_CTRL_A lun=13source_updating=no create_vol=yes pool=test_poolxcli -m 10.10.0.10 dm_define vol=MigVol_7 target=DS4200_CTRL_A lun=15source_updating=no create_vol=yes pool=test_poolxcli -m 10.10.0.10 dm_define vol=MigVol_8 target=DS4200_CTRL_A lun=17source_updating=no create_vol=yes pool=test_poolxcli -m 10.10.0.10 dm_define vol=MigVol_9 target=DS4200_CTRL_A lun=19source_updating=no create_vol=yes pool=test_poolxcli -m 10.10.0.10 dm_define vol=MigVol_10 target=DS4200_CTRL_A lun=21source_updating=no create_vol=yes pool=test_poolWith the data migration defined via the script or batch job above, an equivalent script or batchjob to execute the data migrations then must be run, as shown in Example 7-4.Example 7-4 Activate data migration batch filexcli -m 10.10.0.10 dm_activate vol=MigVol_1xcli -m 10.10.0.10 dm_activate vol=MigVol_2xcli -m 10.10.0.10 dm_activate vol=MigVol_3206 IBM XIV Storage System: Copy Services and Migration
xcli -m 10.10.0.10 dm_activate vol=MigVol_4xcli -m 10.10.0.10 dm_activate vol=MigVol_5xcli -m 10.10.0.10 dm_activate vol=MigVol_6xcli -m 10.10.0.10 dm_activate vol=MigVol_7xcli -m 10.10.0.10 dm_activate vol=MigVol_8xcli -m 10.10.0.10 dm_activate vol=MigVol_9xcli -m 10.10.0.10 dm_activate vol=MigVol_107.5 Manually creating the migration volumeThe local XIV volume can be pre-created before defining the data migration object. This is notthe recommended option due to it being prone to manual calculation errors. This requires thesize of the source volume on the non-XIV storage device to be known in 512 byte blocks, asthe two volumes (source and XIV volume) must be exactly the same size. Finding the actualsize of a volume in blocks or bytes can be difficult, as certain storage devices do not show theexact volume size. This may require you to rely on the host operating system to provide thereal volume size, but this is also not always reliable.For an example of the process to determine exact volume size, consider ESS 800 volume00F-FCA33 depicted in Figure 7-23 on page 217. The size reported by the ESS 800 Web GUIis 10 GB, which suggests that the volume is 10,000,000,000 bytes in size (because the ESS800 displays volume sizes using decimal counting). The AIX bootinfo -s hdisk2 commandreports the volume as 9,536 GiB, which is 9,999,220,736 bytes (because there are1,073,741,824 bytes per GiB). Both of these values are too small. When the volumeproperties are viewed on the volume information panel of the ESS 800 Copy Services GUI, itcorrectly reports the volume as being 19,531,264 sectors, which is 10,000,007,168 bytes(because there are 512 bytes per sector). If we created a volume that is 19,531,264 blocks insize this will be correct. When the XIV automatically created a volume to migrate the contentsof 00F-FCA33 it did create it as 19,531,264 blocks. Of the three information sources that wereconsidered to manually calculate volume size, only one of them must have been correct.Using the automatic volume creation eliminates this uncertainty.If you are confident that you have determined the exact size, then when creating the XIVvolume, choose the Blocks option from the Volume Size drop-down menu and enter the sizeof the XIV volume in blocks. If your sizing calculation was correct, this creates an XIV volumethat is the same size as the source (non-XIV storage device) volume. Then you can define amigration:1. In the XIV GUI go to the floating menu Remote Migration.2. Right-click and choose Define Data Migration (Figure 7-9 on page 198).– Destination Pool: Choose the pool from the drop-down menu where the volume wascreated.– Destination Name: Chose the pre-created volume from the drop-down menu.– Source Target System: Choose the already defined non-XIV storage device from thedrop-down menu.Important: If the non-XIV device is active/passive, the source target system mustrepresent the controller (or service processor) on the non-XIV device that currentlyowns the source LUN being migrated. This means that you must check from thenon-XIV storage, which controller is presenting the LUN to the XIV.Chapter 7. Data migration 207
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Front coverIBM XIV Storage System:C
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Note: Before using this information
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7.9.4 Host server cannot access the
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viiiIBM XIV Storage System: Copy Se
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TrademarksIBM, the IBM logo, and ib
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Recovery Program at the Pentagon fo
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Comments welcomeYour comments are i
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1.1 Snapshots architectureBefore we
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A logical volume is represented by
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If you know in advance that an auto
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An application can utilize many vol
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Note: The creation date of the dupl
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Along with these properties, the tr
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The GUI also lets you specify the d
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pointers to the original data are l
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For the second scenario, the origin
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Figure 1-28 no longer displays the
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To examine the details of the scena
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Restriction: Volumes in a consisten
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When created, the consistency group
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The new snapshots are created and d
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To obtain details about a consisten
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Example 1-12 illustrates the snap_g
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1.5 MySQL database backup exampleMy
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Before running the backup script, a
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# XCLI command to perform the backu
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40 IBM XIV Storage System: Copy Ser
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2.1 OverviewThis section includes a
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Figure 2-2 shows the Tivoli Storage
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►For exchange data, the Microsoft
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2.4.1 XIV VSS Provider installation
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Provide specific information regard
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The Windows server is now ready to
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3. The Requirements Check dialog wi
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5. The completion window shown in F
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To perform a VSS snapshot backup of
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CLUSTERnodePASSWORDAccessNOGenerate
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To see a list of the available VSS
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64 IBM XIV Storage System: Copy Ser
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3.1 Volume copy architectureThe vol
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Figure 3-2 provides an example of t
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After the copy is complete, power u
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4.1 XIV Remote Mirroring overviewTh
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►Host read operations are perform
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Figure 4-4 shows remote mirror conn
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4.2.2 Operational proceduresMirrori
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After mirroring has been implemente
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4.3 XIV Remote Mirroring usageRemot
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►Metro region plus out-of-region
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Figure 4-15 shows an XIV local snap
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►XIV target configuration: synchr
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►XIV target configuration: bi-dir
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Connections must be made between po
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In Figure 4-28, five of the seven e
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If multiple volumes will have depen
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there are certain additional constr
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In synchronous mirroring, during st
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4.4.11 Mirror reactivation and resy
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►►The volume mirroring settings
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4.4.16 Deleting mirror coupling def
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10.Unmap master peers at XIV 2 from
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6. Remove connectivity between the
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4.7 Advantages of XIV mirroringXIV
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As seen in Example 4-1, in the Role
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hover the mouse over a port, as sho
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Selecting Configure opens a configu
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Connections are easily defined by c
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4.11.3 XCLI examplesXCLI commands c
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124 IBM XIV Storage System: Copy Se
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5.1 Synchronous mirroring configura
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- Slave CG / VolumeThis is the name
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2. On the Secondary XIV go to the R
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Adding a mirrored volume to a mirro
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5.3 Role reversalWith synchronous m
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uncommitted data, and it is the res
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►►The local site recoveryThe ol
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Example 5-8 List mirror couplingsFi
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5.5.3 Phase 3: recovery of the prim
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Reactivating the remote mirror coup
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5.5.4 Phase 4: switching production
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5. Reassign volumes back to the pro
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6.1 Asynchronous mirroring configur
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The slave volume must be unlocked a
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Using XCLI for volume mirroring set
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Page 196 and 197: Figure 6-42 New master volumesAfter
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Page 214 and 215: Important: You cannot use the XIV d
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Page 244 and 245: In Example 7-10 the XCLI commands s
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Page 260 and 261: 8.1 Steps to take when using SVC mi
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2. Define the SVC nodes to the XIV
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2. List the newly detected MDisks,
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8.7.2 Using VDisk mirroring to move
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8.8.2 Create the MDisk groupWe must
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8.9.2 Create the MDisk groupWe must
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In Example 8-42 we display the prog
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When an SVC volume is created we no
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In Example 8-55, we monitor the mig
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The VDisk moves from being in image
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the additional Fibre Channel ports
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TasknumberCompleted?Where toperform
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► Fibre Channel SAN Configuration
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DR testingGUI steps 179DS4000 190,
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RRDAC 227-228reactivation 111Recove
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emote mirroring peers 110remote tar
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IBM XIV Storage System: CopyService
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IBM XIV Storage System Copy Services and Migration

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