IBM XIV Storage System Copy Services and Migration

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We now allocate the ESS 800 LUNS to the XIV, as shown in Figure 7-28, where volumeserials 00FFCA33, 010FCA33, and 011FCA33 have been unmapped from the host calledDolly and remapped to the XIV definitions called NextraZap_5_4 and NextraZap_7_4. We donot allow the volumes to be presented to both the host and the XIV. Note that the LUN IDs inthe Host Port column are correct for use with XIV because they start with zero and are thesame for both NextraZap Initiator ports.Figure 7-28 LUNs allocated to the XIVWe now create the DMs and run a test on each LUN. The XIV GUI or XCLI could be used. InExample 7-23 the commands to create, test, and activate one of the three migrations isshown. We must run each command for hdisk3 and hdisk4 also.Example 7-23 Creating one migration> dm_define target="ESS800" vol=”dolly_hdisk3” lun=0 source_updating=yes create_vol=yes pool=AIXCommand executed successfully.> dm_test vol=”dolly_hdisk3”Command executed successfully.> dm_activate vol=”dolly_hdisk3”Command executed successfully.After we create and activate all three migrations, the Migration panel in the XIV GUI looks asshown in Figure 7-29. Note that the remote LUN IDs are 0, 1, and 2, which must match theLUN numbers seen in Figure 7-28.Figure 7-29 Migration has started236 IBM XIV Storage System: Copy Services and Migration
Now that the migration has been started we can map the volumes to the AIX host definitionon the XIV, as shown in Figure 7-30, where the AIX host is called Dolly.Figure 7-30 Map the XIV volumes to the hostNow we can bring the volume group back online. Because this AIX host was already usingSDDPCM, we can install the XIVPCM (the AIX host attachment kit) at any time prior to thechange. In Example 7-24 we confirm that SDDPCM is in use and that the XIV definition fileset is installed. We then run cfgmgr to detect the new disks. We then confirm that the disksare visible using the lsdev -Cc disk command.Example 7-24 Rediscovering the disksroot@dolly:~# lslpp -L | grep -i sdddevices.sddpcm.53.rte 2.2.0.4 C F IBM SDD PCM for AIX V53root@dolly:/# lslpp -L | grep 2810disk.fcp.2810.rte 1.1.0.1 C F IBM 2810XIV ODM definitionsroot@dolly:/# cfgmgr -l fcs0root@dolly:/# cfgmgr -l fcs1root@dolly:/# lsdev -Cc diskhdisk1 Available 11-08-00-4,0 16 Bit LVD SCSI Disk Drivehdisk2 Available 11-08-00-4,1 16 Bit LVD SCSI Disk Drivehdisk3 Available 17-08-02 IBM 2810XIV Fibre Channel Diskhdisk4 Available 17-08-02 IBM 2810XIV Fibre Channel Diskhdisk5 Available 17-08-02 IBM 2810XIV Fibre Channel DiskA final check before bringing the volume group back ensures that the Fibre Channel pathingfrom the host to the XIV is set up correctly. We can use the AIX lspath command againsteach hdisk, as shown in Example 7-25. Note that in this example the host can connect toport 2 on each of the XIV modules 4, 5, 6, and 7 (which is confirmed by checking the last twodigits of the WWPN).Example 7-25 Using the lspath commandroot@dolly:~/# lspath -l hdisk5 -s available -F"connection:parent:path_status:status"5001738000230161,3000000000000:fscsi1:Available:Enabled5001738000230171,3000000000000:fscsi1:Available:Enabled5001738000230141,3000000000000:fscsi0:Available:Enabled5001738000230151,3000000000000:fscsi0:Available:EnabledChapter 7. Data migration 237
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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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consistency group requires the volu
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Go to the Mirroring panel and verif
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-- Activate Mirror CGmirror_activat
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Change RPO and intervalThe required
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Deactivation on the masterTo deacti
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6.2 Role reversalChanging roles can
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Slave peer consistencyWhen the user
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►►A disaster that makes the who
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6.5.2 Mirroring ongoing operationFo
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The sync job runs and the mirror st
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Mirror synchronization statusSynchr
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GUI steps to duplicate a snapshot g
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Figure 6-42 New master volumesAfter
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XCLI commands for DR testingFigure
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184 IBM XIV Storage System: Copy Se
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Page 204 and 205: An example of selecting which metho
Page 206 and 207: not presented to the XIV. Check you
Page 208 and 209: Figure 7-3 depicts a fabric-attache
Page 210 and 211: 4. Enter another port (repeating st
Page 212 and 213: c. Name: Enter a cluster name in th
Page 214 and 215: Important: You cannot use the XIV d
Page 216 and 217: 7.3.4 Create and activate a data mi
Page 218 and 219: Important: If this is an online mig
Page 220 and 221: ►►►►►►►►Define host
Page 222 and 223: 4. Click New for a new system varia
Page 224 and 225: - Source LUN: Enter the decimal val
Page 226 and 227: The rate parameters can only be set
Page 228 and 229: eing generated by the migration pro
Page 230 and 231: If you chose to allow the XIV to de
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Page 236 and 237: 7.10.4 Back-out after a data migrat
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Page 240 and 241: Using Microsoft calculator to conve
Page 242 and 243: 7.12.3 HDS TagmaStore USPIn this se
Page 244 and 245: In Example 7-10 the XCLI commands s
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Page 248 and 249: Using XIV DM to migrate an AIX file
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Page 254 and 255: We can also use a script provided b
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Page 260 and 261: 8.1 Steps to take when using SVC mi
Page 262 and 263: When a partially populated XIV has
Page 264 and 265: 8.3.3 Hardware dependenciesThere ar
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Page 268 and 269: 8.4.3 Creating XIV volumes that are
Page 270 and 271: If your SVC uses firmware Version 5
Page 272 and 273: 2. Define the SVC nodes to the XIV
Page 274 and 275: 2. List the newly detected MDisks,
Page 276 and 277: 8.7.2 Using VDisk mirroring to move
Page 278 and 279: 8.8.2 Create the MDisk groupWe must
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Page 282 and 283: In Example 8-42 we display the prog
Page 284 and 285: When an SVC volume is created we no
Page 286 and 287: In Example 8-55, we monitor the mig
Page 288 and 289: The VDisk moves from being in image
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Page 292 and 293: TasknumberCompleted?Where toperform
Page 294 and 295: ► Fibre Channel SAN Configuration
Page 296 and 297: DR testingGUI steps 179DS4000 190,
Page 298 and 299: RRDAC 227-228reactivation 111Recove
Page 300 and 301: 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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