DFSMStvs

DFSMS Transactional VSAM Services (DFSMStvs) is an optional z/OS feature that enables batch jobs and CICS online transactions to update shared VSAM data sets concurrently. Multiple batch jobs and online transactions can be run against the same VSAM data sets, and DFSMStvs helps ensure data integrity for concurrent batch updates while CICS ensures it for online updates.

Product highlights

• Contributes to the reduction or elimination of the batch window for CICS applications and other VSAM applications by allowing concurrent batch and online updating of VSAM recoverable data sets. • Provides the ability to share VSAM data sets at record-level with integrity and commit and rollback functions for non-CICS applications. • Offers Backup-while-open to be taken using DFSMSdss and DFSMShsm. • Enables batch applications to use the same forward recovery logs. • Delivers increased system availability with simpler, faster, and more reliable recovery operations for VSAM storage structures. • Simplifies scheduling batch jobs because multiple batch jobs that access the same files can be run concurrently on one or more z/OS images in a Geographically Dispersed Parallel Sysplex (GDPS®) instead of serially on one image. • Provides the ability to share VSAM data sets at record-level with integrity and commit and rollback functions for non-CICS applications.