Allocating data sets in extended address volumes

IMS supports the allocation of VSAM and non-VSAM data sets in the extended address space (EAS) on the extended address volume (EAV).

The following types of data sets can be allocated in the EAS of an EAV:

  • BPE external trace data sets
  • OSAM database data sets
  • VSAM database data sets
  • GSAM data sets, after APAR/PTF PM86782/UK94966 is applied.
  • Online log data sets (OLDSs), including large OLDS (for example, greater than 64 KB tracks)
  • Write ahead data sets (WADSs)
  • Restart data sets (RDSs)
  • Message queue blocks data sets
  • Long and short message data sets
  • Terminal devices with UNITYPE = SPOOL or DISK
  • RESLIB data sets (IMS.SDFSRESL)
  • MODBLKS data sets for online change (IMS.MODBLKSA and IMS.MODBLKSB)
  • Application control block library (ACBLIB) data sets
  • DBRC RECON data sets (non-PRA)
  • Database Image Copy utility (DFSUDMP0) data sets
  • Database Image Copy 2 utility (DFSUDMT0) data sets
  • Database Change Accumulation utility (DFSUCUM0) data sets
  • Local online change data sets (IMS.MODSTAT)
  • Global online change data sets (IMS.OLCSTAT)
  • Partitioned data set extended (PDSE) data sets (IMS.MODBLKS, IMS.SDFSJLIB, PGMLIB, SMPLTS, and External Subsystem Attach Facility (ESAF) load libraries)
  • Time-controlled operations (TCO) data sets
  • System log data sets (SLDSs)
  • Recovery log data sets (RLDSs)
  • HALDB Indirect List data sets (ILDSs)
  • IMS Repository data sets
  • MFS map library data sets produced by the MFS Language and Service utilities (IMS.FORMAT)
  • IMS Trace facility external trace data sets
  • IMS Monitor output data sets