IBM XIV Storage System Copy Services and Migration

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RRDAC 227–228reactivation 111Recovery Point Objective (RPO) 73, 149Redbooks Web siteContact us xivRedHat 192, 231redirect on write 5, 22, 66redirect-on-write 47Remote Mirror 33, 71–72, 113–114activate 144remote mirror pair 198Remote Mirroring 8, 23, 71–73, 80, 125–126, 129, 132,159actions 86activate 155delete 165function 113implementation 113planning 111usage 82remote mirroring 116consistency groups 72, 112Fibre channel paths 113first step 81single unit 96synchronous 125XIV systems 86remote site 71–72, 78, 127, 133, 137, 166, 170, 177, 181secondary peers 103Slave volumes 138standby server 137requestor 45, 47resize 113, 208, 214–215resize operation 66Resynchronization 102, 107, 136resynchronization 136, 169role 72, 76–77, 100change 78switching 78role reversal 166RPO 73, 153, 162RPO_Lagging 81, 161RPO_OK 81SSAN boot 68, 186SAN connectivit 113schedule 150, 162schedule interval 73Schedule Management 151schedule_create schedule 154, 163SCSI initiator 191SDDPCM 237Secondary 72, 77secondary site 131–135, 156, 166, 169–170mirror relation 137remote mirroring 134Role changeover 139–140secondary XIV 72–73, 81, 128, 136, 155, 161corresponding consistency group 155Mirror statuses 130, 145Slave volume 147service 45shadow copy 44persistent information 45single XIVfootprint 253rack 253Storage Pool 92system 82, 85, 89Slave 72, 77Slave peer 74, 100, 132–133, 136, 151–152, 161slave peerconsistent data 74Slave Pool 127Slave role 73, 96, 126, 134–136, 167, 179–181Slave volume 76–79, 81, 127, 129, 132–133, 150, 152Changing role 100consistent state 77whole group 77snap_group 31, 37snap_group_duplicate 178Snapshotautomatic deletion 6, 8, 21creation 8, 31deletion priority 6, 11–12details 31duplicate 6, 9–10last_consistent 135last_replicated 172lock 35most_recent 172restore 37–38size 31snapshot 1, 5delete 6, 19duplicate 6, 9–10last consistent 136locked 6, 9naming convention 9snapshot group 28, 30snapshot volume 4–5, 7, 16, 46, 56snapshot_delete 20Snapshot/volume copy 109SNMP traps 112Source LUN 198, 208, 217source MDisk groupextent size 259Image Mode MDisks 261Source Target System 198, 207source updating 187–188, 201, 219source updating option 187SQL Server 45SqlServerWriter 46standby 128state 77consistent 130initializing 129282 IBM XIV Storage System: Copy Services and Migration
Storage Pool 6, 10, 21additional allocations 21Storage poolconsistency group 94different CG 93existing volumes 94storage pool 93, 127, 130, 132, 155, 157, 275storage system 133, 170, 185–186, 188storageadmin 50SuSE 192SVC 243–245firmware version 244, 254, 260MDisk group 252, 259, 261mirror 245, 265quorum disk 253zone 245zoning 245SVC cluster 244–246svcinfo lsmdisk 251–253svctask 254–255, 257svctask chlicense 258switch role 134switch roles 103switch_role 77sync job 72–74, 150–151, 159, 161most_recent snapshot 172schedule 150Sync Type 127Synchronised 187synchronization 201, 209rate 90status 80Synchronized 130synchronized 204, 209, 218synchronous 71Synchronous Mirror 166synchronous mirroring 73syncrate 266Ttarget 86, 114–115, 187–189, 195Target System 127target volume 66, 69, 127–128, 137, 165target_config_sync_rates 90target_config_sync_rates. 102target_list 203, 210tdpexcc 58Test Data Migration 199–200, 204, 208the 107thick to thin migration 212thin provisioning 212Tivoli Storage FlashCopy Manager 41–43detailed information 63prerequesites 53wizard 52XIV VSS Provider 41–42Tivoli Storage Manager (TSM) 43, 58Tivoli Storage Manager for Advanced Copy Services 43TPC (Tivoli Storage Productivity Centre) 245transfer rate 209TSM Client Agent 59VVDisk 245, 250, 252progress percentage 265striping 250VDisk 5copy 0 267VDisk copy 260, 266VDisks 245, 252, 254virtualization license 258virtualization license limit 258, 273, 275VMware 68–69VMware ESX 278VMware File System (VMFS) 68vol_copy 68vol_lock 19volumeresize 113Volume Copy 65, 68OS image 68volume copy 1, 66, 68, 109volume mirrorcoupling 97–99, 104setup 151Volume Shadow Copy Services (VSS) 44VSS 41, 44provider 41, 46requestor 45service 45writer 45VSS architecture 45vssadmin 51Wwrite access 100writer 45, 47WWPN 192–193, 195, 203, 216, 245, 247XXCLI 10, 12–13, 90–91, 112–113, 116, 126, 128, 130,150, 154, 159XCLI command 72, 102, 117, 128, 154, 178, 245, 247,268XCLI example 122XCLI session 10, 12, 15, 128, 140, 143, 154XIV 1, 5, 41–42, 44, 71–73, 149–151, 243–245end disk controllers 243XIV 1 104, 108additional Master Volume 104available, deactivate mirrors 107Complete destruction 108complete destruction 108Deactivate mirror 107Map Master peers 108Master consistency group 104Master peer 109production data 110Index 283
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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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1514131211109876543210OKACID /Diag2
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An example of selecting which metho
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not presented to the XIV. Check you
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Figure 7-3 depicts a fabric-attache
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4. Enter another port (repeating st
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c. Name: Enter a cluster name in th
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Important: You cannot use the XIV d
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7.3.4 Create and activate a data mi
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Important: If this is an online mig
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►►►►►►►►Define host
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4. Click New for a new system varia
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- Source LUN: Enter the decimal val
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The rate parameters can only be set
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eing generated by the migration pro
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If you chose to allow the XIV to de
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that volume must have been deleted
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►The volume on the source non-XIV
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7.10.4 Back-out after a data migrat
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TasknumberCompleted?Where toperform
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Using Microsoft calculator to conve
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7.12.3 HDS TagmaStore USPIn this se
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In Example 7-10 the XCLI commands s
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1011 0003 10.0 5001738000230153 Nex
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Page 252 and 253: We now allocate the ESS 800 LUNS to
Page 254 and 255: We can also use a script provided b
Page 256 and 257: We then get a warning message. The
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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
Page 266 and 267: This leads to the following recomme
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
Page 280 and 281: 8.9.2 Create the MDisk groupWe must
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
Page 290 and 291: the additional Fibre Channel ports
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 300 and 301: emote mirroring peers 110remote tar
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