Hp XP7 Storage Uživatelský manuál Strana 1

HP XP7 for Compatible FlashCopy MirroringUser GuideAbstractThe HP XP7 for Compatible FlashCopy Mirroring User Guide describes and provides instruction

If there is a request for a write operation to an S-VOL in which the requested data is not yet copiedto the target, or a request for a read/write oper

Example 13 LISTDATA command for a pool information (summary)LISTDATA EXTENTPOOLCONFIG VOLUME(FCF6B6) UNIT(3390) SUMMARYWhen the above command is issue

Example 16 LISTDATA command for detailed pool information2107 STORAGE CONTROL EXTENT POOL CONFIGURATION REPORT STORAGE FACILITY IMAGE ID 002107.900.HT

Table 56 Pool information displayed by LISTDATA command (continued)ContentsCategoryThe capacity of the pool (the number of cylinders).-REPOSITORY SIZE

5 Feature comparison with IBM productThis chapter describes the differences between IBM FlashCopy and HP Compatible FlashCopy.Feature comparison with

Table 59 Comparison of copying processes (continued)HP Compatible FlashCopyIBM FlashCopyCompared itemoperation can be performed on therelationship cre

Table 59 Comparison of copying processes (continued)HP Compatible FlashCopyIBM FlashCopyCompared itemData can be copied from the Compatible FlashCopyr

Note: Creation of relationships can fail if any of the following has been performed:• A scratch operation• Deletion of datasets• Volume initialization

FC Establish command• OPENDVCS• MODE (ASYNC)FC Query command• OPENDVCS• UNFORMATFC Withdraw command• OPENDVCS• ACTION (COMMIT/REVERT)Compatible FlashC

6 TroubleshootingThis chapter provides troubleshooting information for Compatible FlashCopy and instructions forcalling technical support.If a Compati

2. Moderate3. Serious4. AcuteThe larger the number becomes, the more the message becomes important. The SVP reports allSIMs related to Compatible Flas

Figure 5 On-demand copy (case 3: Write request to an area in the T-VOL to which the data hasnot been copied)1. From the host, there is a write request

Table 63 SIM (continued)DescriptionImportance levelSIM type (byte28)Reference codeSSB13SSB23SSB22inaccessible because the power supply was turnedon wh

7 Support and other resourcesContacting HPFor worldwide technical support information, see the HP support website:http://www.hp.com/supportBefore cont

HP websitesFor additional information, see the following HP websites:• http://www.hp.com• http://www.hp.com/go/storage• http://www.hp.com/service_loca

Table 64 Document conventions (continued)ElementConventionMonospace text• File and directory names• System output• Code• Commands, their arguments, a

A Compatible FlashCopy GUI referenceThis appendix describes the Remote Web Console windows and tabs for Compatible FlashCopy.Some of the Compatible Fl

Replica LDEVs tabThis tab displays Compatible FlashCopy/FCSE source and target volume information.DescriptionItemIdentifier (ID) of the selected LDEVL

Setting fieldsDescriptionItemCopy Type• FC Z/FCSE: Compatible FlashCopy and Compatible FlashCopy SE• BC: Business Copy• FS: Fast Snap• BC Z: Business

Edit Local Replica Option wizardRelated topics• Page 61• Page 117• Page 118Edit Local Replica Option windowUse this window to change the Compatible Fl

DescriptionItem50%, background copy operations are suppressed, and consequently host I/O responseimproves.Enabled or Disabled:Status• Enabled: If you

SCP Time tableDescriptionItemCU numberCUSCP (state-change-pending) time set for each CU. The range is 0-518,400seconds (6 days).SCP Time (sec.)Opens t

Dataset copying can be performed when:• The position of the copy source extent is different from the position of the copy target extentand both extent

SCP Time tableDescriptionItemCU numberCUSCP (state-change-pending) time set for each CU. The range is 0-518,400seconds (6 days).SCP Time120 Compatible

Glossaryallocation The ratio of allocated storage capacity versus total capacity as a percentage. Allocated storagerefers to those logical devices (LD

to be associated with 1 to 36 LDEVs. Essentially, LUSE makes it possible for applications to accessa single large pool of storage.M-VOL Main volume.MC

IndexAANTRQST, 52Bbackground copying, 9Cconsistency group, 12contacting HP, 111conventionsdocument, 112storage capacity values, 112text symbols, 113CO

Figure 8 Using Consistency Groups with Compatible FlashCopy: Copying multiple data stored overmultiple volumesThe first figure shows copying the data

Figure 9 Incremental FlashCopyThe previous figure shows Data 2A managed as differential data. If you re-execute the commandto establish the relationsh

You can judge whether the Reverse Restore function can be used by examining the results of theFLASHCOPY QUERY RELATIONS command of ICKDSF. For details

After you re-establish a relationship by using the Fast Reverse Restore function, the contents of thenew S-VOL are not ensured, as they will be change

relationships, or create Compatible FlashCopy relationships after creating Cnt Ac-S Z pairs.However, Compatible FlashCopy relationships can be created

Figure 12 Creating Compatible FlashCopy relationship in Cnt Ac-S Z pairFigure 13 Creating Cnt Ac-S Z pair in Compatible FlashCopy relationship18 About

Figure 14 Dataset copyingRemote Compatible FlashCopy functionThe Remote Compatible FlashCopy function enables you to perform operations on CompatibleF

© Copyright 2014 Hewlett-Packard Development Company, L.P.Confidential computer software. Valid license from HP required for possession, use or copyin

Figure 15 Remote Compatible FlashCopy functionCombining Remote Compatible FlashCopy functions with other Compatible FlashCopyfunctionsThe following ta

Compatible FlashCopy-to-Continuous Access Journal Z primary volumefunction (Compatible FlashCopy only)The Compatible FlashCopy-to-Cnt Ac-J Z primary v

Figure 16 Preserve Mirror Compatible FlashCopy functionThe two methods to establish a Compatible FlashCopy relationship using the Preserve MirrorCompa

the relationship cannot be established in the local site. Release the relationship in the remotesite, and try again.• When you use the Preserve Mirror

Data is copied in each Compatible FlashCopy relationship, but not in the Cnt Ac-S Z pairs.If theWithdraw command is issued to release the Compatible F

The following options of Compatible FlashCopy-to-PPRC primary volume must be specified at thesame time:• DFSMSdss: FCTOPPRCPRIMARY• TSO: TGTPPRIM(YES)

Table 3 Performing operations on Compatible FlashCopy volumes (continued)Compatible FlashCopy SE VolumeCompatible FlashCopy VolumeOperationsT-VOL (TSE

NOTE: Consider the following important points when using external volumes with CompatibleFlashCopy:• If an external volume is specified as a Compatibl

Figure 19 Pair configuration: Compatible FlashCopy S-VOL shared with Business Copy ZUsually, you need to specify an unpaired volume (Simplex status) a

Table 7 Compatible FlashCopy and Cnt Ac-S Z shared volumeContinuous Access Synchronous ZCompatible FlashCopyS-VOLP-VOLOKOKS-VOL-OKT-VOLTable 8 Compati

Contents1 About Compatible FlashCopy...6About Compatible FlashCopy...

Sharing a Compatible FlashCopy S-VOL and a Cnt Ac-S Z volume:You must do the following when you share a Compatible FlashCopy S-VOL and a Cnt Ac-S Zvol

Table 10 Whether Reverse Restore can be performed when a Compatible FlashCopy S-VOL is usedas a Cnt Ac-S Z volumeStatus of Cnt Ac-S Z pairShared Cnt A

If S-VOL and T-VOL of Compatible FlashCopy are both Thin Provisioning Z volumes, the numberof pages remaining in T-VOL may differ depending on the tim

1. To maintain the consistency of data, terminate I/O operations to the volumes of Cnt Ac-S Zpairs.2. Establish the Compatible FlashCopy relationship.

Table 16 Whether a Compatible FlashCopy volume can be used as a CC or XRC volumeCC / XRCCompatible FlashCopyS-VOLP-VOLOKOKS-VOLNO*NOT-VOL*Do not share

Optimizing VolumesVolumes can be optimized by Compatible FlashCopy if you use the DEFRAG command of theDFSMSdss utility with the FASTREPLICATION optio

2 Preparing for Compatible FlashCopy operationsThis chapter describes how to prepare for Compatible FlashCopy operations.Requirements of Compatible Fl

Table 20 Types of Compatible FlashCopy and Compatible FlashCopy SE options (continued)FeaturesOption typeSuppresses the background copy operations by

is in effect and the MP operating ratio of the MP blade exceeds 50%, background copy operationsare suppressed, and consequently host I/O response impr

By executing the devserv command, you can view the information on the direct accessmemory device 4200 and on the magnetic disk controller. Based on th

Using PPRC TSO to establish Compatible FlashCopy relationships by volumes ...43Using DFMSdss to establish Compatible FlashCopy

track. The license capacity of these volumes cannot be renewed in real time. Therefore, thepurchased license capacity can be exceeded by the multiple

3 Performing Compatible FlashCopy operationsThis chapter describes how to perform operations using Compatible FlashCopy.Operating commands for Compati

◦ FLASHCOPY WITHDRAW◦ QUERY VIRTUAL FLASHCOPYFor detailed information about using these operating commands, see the IBM user documents.Supported opera

The timing to copy the data when the relationship is established is different between CompatibleFlashCopy and Compatible FlashCopy SE. Compatible Flas

Table 21 Parameters for the FCESTABL command (Volume copying) (continued)DescriptionValueParameterThe relationship remains in effect after background

Table 21 Parameters for the FCESTABL command (Volume copying) (continued)DescriptionValueParameterEstablishes the relationship using the Preserve Mirr

Table 22 Parameters for DFSMdss, Volume copying (continued)DescriptionValueParameterExecutes Compatible FlashCopy copy operation as a priority. IfComp

Table 22 Parameters for DFSMdss, Volume copying (continued)DescriptionValueParameterUse FCTOPPRCPRIMARY to access the FlashCopy to PPRC primaryvolume

When the DFSMSdss command COPY FULL is executed, all the datasets on the S-VOL are copiedto the T-VOL (see the following figure).; Volume area that is

Table 23 Parameters for the ICKDSF command (FLASHCPY ESTABLISH) (continued)DescriptionValueParameterEstablishes the relationship which covers the enti

Operating when Pool is full...92Managing failed states..

Table 23 Parameters for the ICKDSF command (FLASHCPY ESTABLISH) (continued)DescriptionValueParameterNO is the default setting.Specifies the CU number,

FLASHCPY ESTABLISH UNIT(X'7000')TARGETVOL(X'00',X'01',7001) CHANOERECORDINO(YES)The relationship is created.5. Execute t

FLASHCPY ESTABLISH UNIT(X'7000')TARGETVOL(X'00',X'01',7001) CHANOERECORDINO(YES)The relationship will be created.5. Spec

Table 24 ANTRQST macro command parameters (REQUEST=FCESTABLISH) (continued)DescriptionValueParameterAll the data in the copy range of the volume speci

Table 24 ANTRQST macro command parameters (REQUEST=FCESTABLISH) (continued)DescriptionValueParameterEstablishes the relationship using the Preserve Mi

Using TSO to establish Compatible FlashCopy relationships by extentsWhen you establish Compatible FlashCopy relationships by extents with the FCESTABL

Figure 25 Dataset copying with XTNTLTS or XXTNTLST parameter specified (Compatible FlashCopy)When you establish a Compatible FlashCopy dataset relatio

6. If the T-VOL is set to offline in step 4, set thiS-VOLume back to online. This step is not necessaryif the ONLINTGT parameter of the FCESTABL comma

Table 26 ANTRQST macro command parameters (REQUEST=FCESTABLISH)DescriptionValueParameterSpecifies the copy source extent (copy range) by setting the s

Table 28 Parameters available with FLASHCOPY command (continued)DescriptionValueParameterSpecifies the starting cylinder of the copy destination. Spec

1 About Compatible FlashCopyThis chapter provides an overview of Compatible FlashCopy operations on the HP XP7 Storagesystem.About Compatible FlashCop

flashcopy establish source 10 0-end target 20 0-endCommand complete: FLASHCOPY 0010 0 99 TO 0020 0 9To cancel the relationship remaining after the com

Using z/VM FLASHCOPY TGTWRITE command to remove write-protection from anS-VOLTo remove write protection from the S-VOL of a relationship, use the FLAS

2. Click Edit SCP Time.3. In the Edit SCP Time window, select the CU for which you want to change thestate-change-pending time and click Change SCP Ti

The FCQUERY command can be used to display information including the attributes set to thedevices specified by DEVN and the number of Compatible Flash

Table 35 Information displayed by the FCQUERY command (continued)DefinitionDisplayed contentDisplayed itemVolume specified by DEVN is currently used a

ACT shows the total number of the active Compatible FlashCopy relationships in each extent.Therefore, in the example in the figure, the total number o

Table 36 Information displayed by the FCQUERY command (continued)DefinitionDisplayedcontentDisplayed itemThe updated part is managed as differential d

Table 37 Parameters for the ICKDSF command (continued)DescriptionValueParameterCommandSets the JCL statement identifying the volume. If the OS of the

Table 38 Information displayed by the FLASHCPY QUERY command (continued)MeaningDisplayed contentDisplayed itemThe specified volume can be specified as

The following table shows the meaning of information displayed as a result of executing theFLASHCPY QUERY RELATIONS command.Table 39 Information displ

Table 1 Compatibility between Compatible FlashCopy and user interface functions (continued)User interfaceFunctionsANTRQST MacroICKDSFDFSMSdssTSOOKOKOK

Table 39 Information displayed by the FLASHCPY QUERY RELATIONS command (continued)MeaningDisplayed contentDisplayed itemThis volume is a TSE-VOL.TSThi

Table 40 Parameters for the ICKDSF command (REQUEST=FCQUERY)DescriptionValueParameterSpecifies the number (device address) of the device on which you

Viewing resource informationYou can check status and other details related to your relationships and pairs in the following:• View license information

ExplanationDescriptionCodeThe relationship initially established by the Incremental FlashCopy functionwas re-established by Reverse Restore in the NOC

History window operation messages for FCSEExplanationDescriptionCodeCreation of the FCSE relationship in NOCOPY mode completed.NOCOPY RELATIONSHIPESTA

• ANTRQST Macro• z/VM CPCAUTION: Observe the following cautions about releasing relationships:• A time-out may occur when more than 100 FlashCopy rela

Table 42 Parameters for the FCWITHDR command (Compatible FlashCopy) (continued)DescriptionValueParameterDefault setting. The relationships established

Table 43 Results from FCWITHDR command (continued)ResultsParameterSettingThe relationships established with the specified copysource extents on the vo

The information specified by the XTNTLST or XXTNTLST parameter is supported only when thefollowing conditions are fully met:• The information specifie

Case 2: TDEVN Specified, DDSW = NO, XTNTLST Parameter SpecifiedThe relationships included in the extents specified by the XTNTLST parameter are withdr

Establishing a Compatible FlashCopy relationshipCompatible FlashCopy provides a fast data replication capability that enables you to copy thesource da

Figure 31 FCWITHDR command processing (TDEVN: specified, DDSW = NO, XTNTLST specified)(for Example 2B)Case 3: SDEVN and TDEVN Specified, DDSW = NOAll

Figure 32 FCWITHDR command processing (SDEVN and TDEVN: specified, DDSW = NO) (for Case3)Case 4 (a, b): SDEVN and TDEVN Specified, DDSW = NO, XTNTLST

Figure 33 FCWITHDR command processing (SDEVN and TDEVN: specified, DDSW = NO, XTNTLSTspecified) (for Example 4A)The following is another example of th

Figure 34 FCWITHDR command processing (SDEVN and TDEVN: specified, DDSW = NO, XTNTLSTspecified) (for Example 4B)The following is an example of the com

FCWITHDR SDEVN(X'4202') DDSW(YES)FCWITHDR SDEVN(X'4202') TDEVN(X'4203') DDSW(YES)By executing the FCWITHDR command descr

Figure 36 FCWITHDR command processing (SDEVN and TDEVN: specified, DDSW = YES, XTNTLSTspecified) (for Case 6)Case 7: DEVN Specified, ACTION = THAWResu

Table 45 Parameters for the ICKDSF command (FLASHCPY WITHDRAW) (continued)DescriptionValueParametercommand. If the OS of the host server is MVS, thisp

1. If the OS of the host server is MVS, do one of the following:• Specify the JCL statement in the DDNAME parameter.• Specify the S-VOL device number

Table 47 Parameters for the ANTRQST macro command (REQUEST=FCWITHDRAW) (continued)DescriptionValueParameterSpecifies the number (device address) of th

Table 48 Parameters for the FLASHCOPY WITHDRAW commandDescriptionValueParameterSpecifies the device number (device address or mini disk number),the st

Figure 1 Multiple copy targets per source supportedFigure 2 Cascaded copy relationship not supportedCopy modesWhen you establish a Compatible FlashCop

4 Performing Compatible FlashCopy SE operationsThis chapter provides information about performing operations with Compatible FlashCopy SE.Overview of

Table 50 Other requirements for Using FCSERequirementItemI-2107Controller emulation typeCompatible FlashCopy can use volumes whose LDKC:CU:LDEV (LDKC:

Setting for TSE-VOLsItemEnter the name of the TSE-VOLs to be created. You can enter up to the 32 charactersincluding the initial number.LDEV Name• Pre

Even if the pool is in a 100% used state (area becomes insufficient), you can create a relationshipin which the T-VOL is a TSE-VOL. However, when writ

Table 51 Parameters for the FCESTABL command (FlashCopy SE / Suspending write operations toS-VOLs)DescriptionValueParameterSuspend the write operation

Example 2 Example of the FCESTABL command (COPY mode)FCESTABL SDEVN(X'4202') TDEVN(X'4203') MODE(NOCOPY) SETGTOCK (YES)Using DF

Viewing relationship states of Compatible FlashCopy SEUsing FQUERY to view relationship statesThe FCQUERY command can be used to display information i

Example 8 Result of FLASHCPY QUERY RELATIONS commandTable 39 (page 69) shows information that is displayed by the FLASHCPY QUERY RELATIONScommand.&quo

1. If the OS of the host server is MVS, specify the appropriate JCL DD statement in the DDNAMEparameter, or specify the S-VOL device number of the rel

Table 53 LISTDATA command parametersDescriptionParametersCategoryDisplays the information about the TSE-VOL for a device that is issuing acommand.DEVI