Jump to content

Virtual Storage Access Method

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by 24.151.141.14 (talk) at 03:22, 12 September 2003. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)

An IBM disk file storage scheme first used in S/370 and virtual storage. VSAM comprises three access methods: Keyed Sequential Data Set (KSDS), Relative Record Data Set (RRDS) and Entry Sequenced Data Set (ESDS).

Both IMS/DB and DB2 are implemented on top of VSAM and use its underlying data structures

Retrieved from "https://en.wikipedia.org/w/index.php?title=Virtual_Storage_Access_Method&oldid=1422133"