z/OS DFSMStvs Administration Guide
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SHCDS parameters

z/OS DFSMStvs Administration Guide
GC52-1388-00

The SHCDS parameters provide for these tasks:
  • Listing information kept by the SMSVSAM server and the catalog as related to VSAM RLS or DFSMStvs.
    • LISTDS
    • LISTSUBSYS
    • LISTSUBSYSDS
    • LISTRECOVERY
    • LISTALL
    • LISTSHUNTED
  • Controlling forward recovery, preserving retained locks when a data set is moved or copied, and, in rare cases when forward recovery fails, deleting the locks.
    • FRSETRR
    • FRUNBIND
    • FRBIND
    • FRRESETRR
    • FRDELETEUNBOUNDLOCKS
  • Allowing non-RLS updates when forward recovery is required.
    • PERMITNONRLSUPDATE
    • DENYNONRLSUPDATE
  • Removing the SMSVSAM server's knowledge of an inactive subsystem, thus forcing a cold start of the online application. Use REMOVESUBSYS only when procedures provided by the application have failed or you have no intention of ever using the subsystem again.
  • REMOVESUBSYS
  • Resetting VSAM RLS indicators in the catalog, allowing reconstruction of RLS information or fallback from VSAM RLS. (For the fallback procedure, see z/OS DFSMSdfp Storage Administration.)
    • CFREPAIR
    • CFRESET
    • CFRESETDS
  • Taking action on work that DFSMStvs has shunted. Units of recovery are shunted when DFSMStvs is unable to finish processing them, for example, due to an I/O error. For each shunted log entry that exists, the locks associated with that entry are retained.
    • RETRY
    • PURGE
Parent topic: Listing and controlling SMSVSAM recovery

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