IBM SG24-5360-00 manual Ramac Virtual Array, Peer-to Peer Remote VSE/ESA

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access method (SAM) files, however, can be relocated to a different, single extent disk location on the target device. In this case, the tcyl operand must be supplied, but the device must not be a VM partial pack minidisk. The proper label information (single FORMAT-1 label) will be created and added to the target VTOC. Processing multivolume files is the responsibility of the operator, such that the SNAP command should be repeated for all the source volumes containing file extents. The number of extents to be copied is limited by the limits existing for the source device. Copying will be performed only if the appropriate extent boundaries on the target device are available or have already expired. Otherwise an error message will be issued. Use the DDSR command to delete the overlaid file and release the space.

target The device ID (cuu) or the VOL1 label of the target device to which the user wants the data to be copied. You must set the target device DOWN (DVCDN command) before initiating the SNAP function, unless the source and target devices are the same device. If the target device is identified by its VOLID, it must be either the only volume with that VOLID or the only volume with that VOLID that is DOWN (DVCDN). Otherwise an error message is issued. As many extents as allocated on the source device will be used for file copying to the target device (DSN=) . Otherwise as many cylinders as specified for the source device, or the entire source volume will be copied to the target device. Relocation of data records will be assumed if the specified cylinder range does not match the cylinder range that was given for the source device. If the cylinder range does not match the cylinder range of the source device and the target device is a VM partial-pack minidisk, the command will be rejected because VM uses virtual cylinder values for partial-pack minidisks, and the cylinder ranges must match for VM partial-pack minidisks. The source and the target devices must be of the same type and must be in the same RVA subsystem.

tcyl The decimal specification of where copying is to start on the target device. Cylinder is the smallest entity that can be specified for any SNAP command function. The target cyl specification (tcyl) added to the specified or calculated ncyl-1 value for the source device is the resulting target end cylinder address and must not exceed 32767 or the device′s primary number of cylinders.

V O L 1 = Specifies the VOL1 label that the target device is to receive after the source volume has been copied. This operand is required if unique VOLIDs are to be maintained. Otherwise the source and the target devices would have the same VOL1 label after the copy function has completed. The VOL1 label specification for a target device is accepted only when both the cyl and the DSN= specification have been omitted, that is, for full volume snaps only.

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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 Preface Team That Wrote This RedbookComments Welcome Your comments are important to usOverview of RVA and the Virtual Disk Architecture What Is an IBM Ramac Virtual Array?IBM Ramac Virtual Array Log Structured FileData Compression and Compaction − Functional track tableWhat Is IXFP/SnapShot for VSE/ESA? What Is SnapShot?VSE/ESA Support for the RVA What Is IXFP? Deleted Data Space ReleaseWhat Is Peer-to-Peer Remote Copy? Reporting FunctionsRamac Virtual Array, Peer-to Peer Remote VSE/ESA RVA Benefits for VSE/ESA RVA Simplifies Your Storage ManagementDisk Capacity Administration IxfpBatch Window Improvement Ramac Virtual Array IXFP/SnapShot for VSE/ESAApplication Development RVA Data AvailabilityHardware SnapShot PprcRamac Virtual Array, Peer-to Peer Remote VSE/ESA VSE/ESA Support for the RVA PrerequisitesVolumes 1 VSE/ESA Input/Output Configuration ProgramHost Connection Assgn Volume Minimal InitPartial Disk Minimal Init ExecRamac Virtual Array, Peer-to Peer Remote VSE/ESA IXFP/SnapShot for VSE/ESA System VSE/ESA User TimeDTRIATTN,PARM=′ Ixfp REPORT′ Sample Batch Job to Invoke Ixfp Report FunctionIXFP/SnapShot for VSE/ESA AR 0015 CUU DEF DetailPhys DefinedFull Volume Ixfp SnapReply ′ YES′ to Proceed VSE/VSAMRange of Cylinders Non-VSAM File Expired Files Total Volume Ixfp DDSR,PATEV3Ixfp DDSR,PATEV30000-0999,NOPROMPT Specified File Ixfp DDSR,PATEV3DSN=′ test.data.3′ , NopromptIxfp REPORT,80E Ixfp REPORT,80F Ixfp REPORT,80E,80FIxfp Report Sample Output of Ixfp Report Command Device Detail ReportRamac Virtual Array, Peer-to Peer Remote VSE/ESA Device Summary Report Subsystem Summary ReportRamac Virtual Array, Peer-to Peer Remote VSE/ESA Peer-to-Peer Remote Copy Peer-to-Peer Remote CopyPprc and VSE/ESA Software Requirements Pprc Data FlowPprc Hardware Requirements Invoking peer-to-peer remote copyPrimary Devices of a Pprc Pair Examples of Pprcopy CommandsSnapShot Considerations Secondary Devices of a Pprc PairSetting Up Pprc Paths and Pairs Recovering from a Primary Site FailureRecovering from a Secondary Site Failure Deleting Pprc Pairs and PathsPhysical Connections to the RVA Determining the Logical Control Unit Number for RVA Determining the Channel Connection AddressRamac Virtual Array, Peer-to Peer Remote VSE/ESA Appendix A. RVA Functional Device Configuration Functional Device ConfigurationFunctional Device Configuration Screen CD23 Appendix B. Ixfp Command Examples Snap CommandSyntax Ramac Virtual Array, Peer-to Peer Remote VSE/ESA Using SnapShot to Copy One Volume to Another NopromptAR 0015 Capacity DEFINED-CAPACITYTest Prod Overall Test Prod Using SnapShot to Copy a File from One Volume to Another Using SnapShot to Copy Files with RelocationOther Uses of SnapShot IXFP20I Snap Function Completed ATDdsr Command Syntax of Ixfp Ddsr Command DetailsUsing Ddsr to Delete a Single Data Set Using Ddsr to Delete the Contents of a VolumeUsing Ddsr to Delete the Free Space on an RVA ReportAR+0015 IXFP29D Ddsr for For Deletion Report Command Reporting on the Capacity of the RVA Subsystem Reporting on the Capacity of a Single VolumeReporting on the Capacity of Multiple Volumes Device Detail Report FUNC. Capacity MBIXFP/SnapShot Setup Job Streams JOB WCWTEST1Exec DTRIATTN,PARM=′ Ixfp REPORT′ Ixfp DDSR,80E BG 0000 // JOB InitdiskBG 0000 1A86I Following Assignments are Released Ready Ixfp DDSR,80F50.83 47.86 AR 0015 1I40I Ready $$DITTO BLKFACTOR=1 EOJ$$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 Redbooks on CD-ROMs Appendix F. Related PublicationsInternational Technical Support Organization Publications Other PublicationsRamac Virtual Array, Peer-to Peer Remote VSE/ESA How to Get Itso Redbooks ∙ E-mail OrdersIBM Redbook Fax Order Form Please send me the followingIndex See CKDPprc distance Itso Redbook Evaluation Please answer the following questionsSG24-5360-00
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