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Virtual Storage Access Method

   Also found in: Acronyms, Wikipedia 0.02 sec.
(database)Virtual Storage Access Method - (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.
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Xbridge Host Data Connect enables Windows(r), Web and mobile applications to quickly and securely access virtually all OS/390(r) and z/OS(tm) mainframe data including Virtual Storage Access Method (VSAM), Queued Sequential Access Method (QSAM), DataBase 2 (DB2) and IMS DB, and to see the data in the format of the requesting application (e.
IMS DATABASES IMPROVE EFFICIENCIES OF DATA QUERIES by Online Product News
With Xbridge Host Data Connect, the staff gets the real-time information they need, when they need it, from the Database 2 (DB2) table and several Virtual Storage Access Method (VSAM) files on the department's mainframe.
Kansas Department of Transportation Selects Xbridge Host Data Connect ... by Business Wire
Xbridge Host Data Connect enables Windows(R), Web and mobile applications to quickly and securely access virtually all OS/390(R) and z/OS(R) mainframe data including Virtual Storage Access Method (VSAM), Innovation Data Access (IAM(R)), Queued Sequential Access Method (QSAM), DataBase 2 (DB2) and Information Management System (IMS DB), and to see the data in the format of the requesting application (e.
Xbridge Host Data Connect Adds Support for SOAP, WDSL, DCOM; ... by Business Wire
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