Journaling Procedures › Offloading Disk Journal Files › When CA IDMS/DB Switches Journal Files

When CA IDMS/DB Switches Journal Files

When Switch Occurs

CA IDMS/DB switches to another disk journal file when:

• The active disk journal becomes full
• You issue a DCMT VARY JOURNAL command under the central version
• An I/O error is detected on the active disk journal file

What Happens When the Switch Occurs

When CA IDMS/DB switches to another disk journal file, it writes a message to the operator, indicating that a swap has occurred and that the previously active journal file needs offloading. The operator should respond to this message by offloading the full file.

Eliminating Operator Intervention

You can eliminate the need for operator intervention by using a write-to-operator exit routine that intercepts and reviews the message to the operator and responds by automatically submitting a job to offload the full journal file.

Note: For information about the WTOEXIT user exit and sample routines for each operating system, see the CA IDMS System Operations Guide.