IBM SG24-5360-00 manual Ixfp Snap, Full Volume

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4.1 IXFP SNAP

SNAP identifies this command as a SNAP function. Figure 12 shows the syntax of the IXFP SNAP command.

	,

IXFPSNAP,source:target
	(scyl-scyl)	(tcyl) ,VOL1=volid		,NOPROMPT
	.ncyl

source(DSN=′ data-set-name′ ) : target

(tcyl)

Figure 12. Syntax of IXFP SNAP Command

Note: SnapShot commands can be set up to be invoked by end users as well as by database administrators and system programmers.

There are three ways to do a SnapShot. You can take a copy of:

∙A full volume

∙

∙

A range of cylinders

A non-VSAM file

4.1.1 A Full Volume

You copy a full volume by identifying the device address (cuu) or VOLID label of the source and target in the IXFP SNAP command. Intermixing of the device address and VOLID label to specify the source and target in the IXFP command is allowed. Use the VOL1= parameter to specify the volume label that the target will assume after the copy has completed. If the VOL1= parameter is omitted, the source and target volumes will have the same VOLID label when the copy is completed.

To illustrate, we use two volumes: PATEV1 and PATEV2. The device addresses of these volumes are 80E and 80F, respectively. To copy the first volume onto the second volume, issue any of the following commands:

∙

∙

∙

IXFP SNAP,80E:80F,NOPROMPT

IXFP SNAP,PATEV1:PATEV2,NOPROMPT

IXFP SNAP,PATEV1:80F,NOPROMPT

In this case the source 80E and target 80F will have the same VOLID label (PATEV1) after the snap completes. A VOL1= parameter can be used to give the target a specific VOLID label after the snap of the source volume. Continuing with the example, to give the target volume a VOLID label of PATEV3, we include a VOL1= parameter indicating VOLID label PATEV3. Use one of the following commands;

∙

∙

IXFP SNAP,80E:80F,VOL1=PATEV3,NOPROMPT

IXFP SNAP,PATEV1:80F,VOL1=PATEV3,NOPROMPT

The NOPROMPT parameter is included to prevent decision-type messages from being issued. Otherwise, decision-type messages are issued for the operator to verify and confirm (see Figure 13 on page 22).

Chapter 4. IXFP/SnapShot for VSE/ESA 21

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Contents International Technical Support Organization Page International Technical Support Organization First Edition January Contents Peer-to-Peer Remote Copy Itso Redbook Evaluation Contents Vi Ramac Virtual Array, Peer-to Peer Remote VSE/ESA Team That Wrote This Redbook PrefaceYour comments are important to us Comments WelcomeLog Structured File What Is an IBM Ramac Virtual Array?IBM Ramac Virtual Array Overview of RVA and the Virtual Disk Architecture− Functional track table Data Compression and CompactionWhat Is SnapShot? What Is IXFP/SnapShot for VSE/ESA?VSE/ESA Support for the RVA Deleted Data Space Release What Is IXFP?Reporting Functions What Is Peer-to-Peer Remote Copy?Ramac Virtual Array, Peer-to Peer Remote VSE/ESA RVA Simplifies Your Storage Management RVA Benefits for VSE/ESADisk Capacity Ixfp AdministrationBatch Window Improvement IXFP/SnapShot for VSE/ESA Ramac Virtual ArrayRVA Data Availability Application DevelopmentHardware Pprc SnapShotRamac Virtual Array, Peer-to Peer Remote VSE/ESA Prerequisites VSE/ESA Support for the RVA1 VSE/ESA Input/Output Configuration Program VolumesHost Connection Exec Volume Minimal InitPartial Disk Minimal Init AssgnRamac Virtual Array, Peer-to Peer Remote VSE/ESA System VSE/ESA User Time IXFP/SnapShot for VSE/ESASample Batch Job to Invoke Ixfp Report Function DTRIATTN,PARM=′ Ixfp REPORT′IXFP/SnapShot for VSE/ESA Defined DetailPhys AR 0015 CUU DEFIxfp Snap Full VolumeVSE/VSAM Reply ′ YES′ to ProceedRange of Cylinders Non-VSAM File Expired Files Ixfp DDSR,PATEV3 Total VolumeIxfp DDSR,PATEV30000-0999,NOPROMPT Ixfp DDSR,PATEV3DSN=′ test.data.3′ , Noprompt Specified FileIxfp REPORT,80E,80F Ixfp REPORT,80E Ixfp REPORT,80FIxfp Report Device Detail Report Sample Output of Ixfp Report CommandRamac Virtual Array, Peer-to Peer Remote VSE/ESA Subsystem Summary Report Device Summary ReportRamac Virtual Array, Peer-to Peer Remote VSE/ESA Peer-to-Peer Remote Copy Peer-to-Peer Remote CopyPprc Data Flow Pprc and VSE/ESA Software RequirementsInvoking peer-to-peer remote copy Pprc Hardware RequirementsSecondary Devices of a Pprc Pair Examples of Pprcopy CommandsSnapShot Considerations Primary Devices of a Pprc PairRecovering from a Primary Site Failure Setting Up Pprc Paths and PairsDeleting Pprc Pairs and Paths Recovering from a Secondary Site FailurePhysical Connections to the RVA Determining the Channel Connection Address Determining the Logical Control Unit Number for RVARamac Virtual Array, Peer-to Peer Remote VSE/ESA Functional Device Configuration Appendix A. RVA Functional Device ConfigurationFunctional Device Configuration Screen CD23 Snap Command Appendix B. Ixfp Command ExamplesSyntax Ramac Virtual Array, Peer-to Peer Remote VSE/ESA Noprompt Using SnapShot to Copy One Volume to AnotherDEFINED-CAPACITY AR 0015 CapacityTest Prod Overall Test Prod Using SnapShot to Copy Files with Relocation Using SnapShot to Copy a File from One Volume to AnotherIXFP20I Snap Function Completed AT Other Uses of SnapShotSyntax of Ixfp Ddsr Command Details Ddsr CommandUsing Ddsr to Delete the Contents of a Volume Using Ddsr to Delete a Single Data SetReport Using Ddsr to Delete the Free Space on an RVAAR+0015 IXFP29D Ddsr for For Deletion Report Command Device Detail Report FUNC. Capacity MB Reporting on the Capacity of a Single VolumeReporting on the Capacity of Multiple Volumes Reporting on the Capacity of the RVA SubsystemJOB WCWTEST1 IXFP/SnapShot Setup Job StreamsExec DTRIATTN,PARM=′ Ixfp REPORT′ Ready Ixfp DDSR,80F BG 0000 // JOB InitdiskBG 0000 1A86I Following Assignments are Released Ixfp DDSR,80E$$DITTO BLKFACTOR=1 EOJ 50.83 47.86 AR 0015 1I40I Ready$$DITTO BLKFACTOR=1 $$DITTO EOJ 726532.208 MB 117880.209 MB 57754.953 MB Appendix C. VSE/VSAM Considerations Backing up Vsam Volumes Appendix C. VSE/VSAM Considerations Ramac Virtual Array, Peer-to Peer Remote VSE/ESA Appendix D. Iocds Example Ramac Virtual Array, Peer-to Peer Remote VSE/ESA Appendix E. Special Notices Following terms are trademarks of other companies Other Publications Appendix F. Related PublicationsInternational Technical Support Organization Publications Redbooks on CD-ROMsRamac Virtual Array, Peer-to Peer Remote VSE/ESA ∙ E-mail Orders How to Get Itso RedbooksPlease send me the following IBM Redbook Fax Order FormSee CKD IndexPprc distance Please answer the following questions Itso Redbook EvaluationSG24-5360-00