virtual storage access method

Computing Dictionary

Virtual Storage Access Method definition

(VSAM) An IBM disk file storage scheme first used in S/370 and virtual storage. VSAM comprises three access methods: Keyed Sequenced 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.
["Storage" or "Sequential"?]
The Free On-line Dictionary of Computing, © Denis Howe 2010
Cite This Source
Previous Definition: virtual storage
Next Definition: virtual storage extended
More from
Synonyms and Antonyms for Virtual Storage Access Method
More from
Search for articles containing Virtual Storage Access Method Word FAQs presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature