Administration Guide › Managing Exception and Exclusion Files › Creating or Updating an Exception File › Specifying Special Processing Options › Quiesce Option

Quiesce Option

Use the Quiesce option to suspend all activity on the following minidisks or file spaces before CA VM:Backup attempts the backup:

• Very active minidisks (for example, other [set the productgroup variable value for your book] products)
• File spaces containing files that must be at the same commit level
• File spaces that contain update-in-place files such as BFS files.

Quiescing a minidisk or file space ensures that it does not change while CA VM:Backup is writing its contents to tape.

If you do not want CA VM:Backup to quiesce a minidisk or file space, type n in the Quiesce field. CA VM:Backup does not issue requests to have the minidisks or file spaces quiesced before backing them up. This option is the default.

If you want CA VM:Backup to quiesce a minidisk or file space, type y in the Quiesce field. CA VM:Backup checks whether the quiesce user exit (VMBEXIT2) exists.

• If the user exit exists, CA VM:Backup invokes the user exit to allow it the opportunity to send a quiesce request to the user ID being backed up.
• If VMBEXIT2 does not exist, CA VM:Backup issues a CP SMSG userid QUIESCE. This command asks the user ID to quiesce the minidisk or file space.
  • If the user ID is not receiving SMSG, CA VM:Backup waits until the time that is specified for the user wait period to elapse. The product then assumes that the minidisk or file space is quiesced and continues the job.
  • If the user ID receives the CP SMSG userid QUIESCE command but does not respond within the allowed user wait time, CA VM:Backup assumes that the quiesce request is rejected. The product then skips the minidisk or file space.

    Note: The user wait time is defined by the USERWAIT record in the VMBACKUP CONFIG file.

Note: For more information about quiescing minidisks and file spaces, see the System Programmer Reference Guide.