The Backstore Engine › Allocation Logic - CA MIM or IBM GRS Support › BypassOfflinePhysicalDevices=Y

BypassOfflinePhysicalDevices=Y

With BypassOfflinePhysicalDevices set to Y, CA Vtape starts an Externalization or Recall task when all the required tape devices for that task are found available and in ONLINE status. If there are not enough tape drives available, the task is terminated, rescheduled, and automatically retried without any operator intervention. The following are typical messages issued under these conditions:

• SVTnPX116E No drives available.
• SVTnPX020W Physical drive allocation failed. Task will be terminated and rescheduled.

If the required tape drives will not be available for long periods of time, the operator should issue the SVTn SET MAXDRIVES console command to lower the maximum number of tape devices CA Vtape is trying to use.

If the task being retried is more important than Externalization processes already in progress (for example, a Recall), you can stop one or more of the existing tasks gracefully by issuing the SVTn STOP PTASKID or SVTn STOP GROUP console commands.

Note: For more information about these commands, see the chapter “Console Commands".

If the FullMaxdrivesEnforcement attribute in the DynamicOptions Section of the parmlib is set to Y, an Externalization task will automatically be stopped when a Recall causes the MAXDRIVES setting to be exceeded.