IBM SG24-5360-00 manual Volumes, Host Connection, 1 VSE/ESA Input/Output Configuration Program

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3.2 Volumes

With VSE/ESA and the RVA, the subsystem volumes can be defined in different emulation modes. This makes the RVA absolutely adaptable to your needs.

The following device type emulations are supported with the RVA:

∙

∙

3380 model J, K, and KE (KE is a 3380K compatible device with the same number of cylinders (1770) as a 3380E).

3390 models 1, 2, and 3

3.3 Host Connection

Host connectivity options include parallel and/or ESCON attachment. Extended connectivity parallel channel configurations of up to 32 channels are available and supported without bus and tag output connections. The bus and tag outputs are internally terminated, so the RVA must physically be the last in a

daisy-chained configuration. ESCON configurations include up to 128 logical links, either as direct links or through an ESCON Director.

The physical channel configuration must match the definitions in the I/O configuration data set (IOCDS). The physical connections on the CPU and the RVA must reflect the statements in the IOCDS. Mistakes can go undetected until later maintenance actions cause unnecessary impact. The channel configuration should be planned such that the impact of a single component failure is minimized. For an IOCDS example, refer to Appendix D, ªIOCDS Exampleº on page 63.

3.3.1 VSE/ESA Input/Output Configuration Program

Support for the stand-alone IOCP is supplied with the hardware system′s service processor or processor controller. IOCP describes a system′s I/O configuration to the CPU.

Before you install VSE/ESA natively (not under VM/ESA or an LPAR), make sure that you have fully configured your system through IOCP. Starting with VSE/ESA 1.3, the VSE/ESA IOCP is automatically installed during initial installation of VSE/ESA. You can use the IOCP batch program to create a new IOCDS when you change the hardware configuration. You can use the IOCP batch program to define and validate the IOCP macro instructions if you prepare for the installation of a new processor. Use skeleton SKIOCPCN (available in VSE/ICCF library 59) as a base for configuration changes.

An IOCDS must be generated for the hardware the first time through the stand-alone IOCP delivered with the processor. For this program you can use prepared IOCP macro instructions that have been generated on another processor. The specified device numbers for VSE/ESA must be within the range 0000 through 0FFF. The devices themselves can be attached to any available link.

For more information about IOCP, refer to the processor′s IOCP manual and to the IOCP User′s Guide and ESCON Channel-to-Channel Reference, GC38-0401.

14 RAMAC Virtual Array, Peer-to Peer Remote VSE/ESA

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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 usWhat Is an IBM Ramac Virtual Array? IBM Ramac Virtual ArrayOverview of RVA and the Virtual Disk Architecture 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 Volume Minimal Init Partial Disk Minimal InitAssgn 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 Detail PhysAR 0015 CUU DEF 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 copyExamples of Pprcopy Commands SnapShot ConsiderationsPrimary Devices of a Pprc Pair 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 a Single Volume Reporting on the Capacity of Multiple VolumesReporting on the Capacity of the RVA Subsystem Device Detail Report FUNC. Capacity MBIXFP/SnapShot Setup Job Streams JOB WCWTEST1Exec DTRIATTN,PARM=′ Ixfp REPORT′ BG 0000 // JOB Initdisk BG 0000 1A86I Following Assignments are ReleasedIxfp DDSR,80E 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 Appendix F. Related Publications International Technical Support Organization PublicationsRedbooks on CD-ROMs 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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