VSAM Management

Reliant

VSAM Recovery System

Platform: z/VSE

• Allows user to recreate a file’s condition prior to a disk failure or file deletion, using a file backup and the appropriate journals
• Provides batch programs with the type of journaling support for VSAM datasets that is provided by CICS for online programs, ensuring total recovery for your online and batch systems
• DL/I journal records from your CICS System Journal and batch DL/I journal logs from batch DL/I programs can be combined with VSAM journal records and maintained on a single journal backup file. When a DL/I recovery or “change-accum” process is required a single DL/I log dataset that can be input to your standard DL/I utilities is generated.
• Application programmers need not include specialized “change-log” logic in their CICS programs if the IBM-supplied automatic journaling feature of CICS is used—this feature, along with Reliant, is all that is needed to provide VSAM file recovery
• Provides a batch journaling facility that is analogous to CICS journaling, allowing recovery of VSAM updates made in a batch environment without re-running the batch jobs
• Will re-apply changes made since the latest backup after a destroyed VSAM file has been restored
• Verification software and procedures are included that ensure the correct execution of all the steps involved in the recovery process—the CICS journaling, your backup and restore system, and the Reliant software
• Provides an automated mechanism for backing up CICS journals as they are filled by CICS and protecting the CICS journals from being reused before the backups have been completed
• Manages and protects your CICS journals by using the CICS journal open/close exits that became available with CICS release 1.7 and a “Journal Control File” that you create and maintain with an included utility program

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