This command terminates any Backstore Engine task that matches the task ID number. You can obtain the task ID number from the SVTn DISPLAY BACKSTORE console command.
The difference between SVTn STOP RECALL and SVTn STOP PTASKID is that SVTn STOP RECALL stops only the specific Recall for the specified Virtual Volume, while SVTn STOP PTASKID stops the task, including any pending work queued to the task. The difference between SVTn STOP GROUP and SVTn STOP PTASKID is that SVTn STOP GROUP stops all Externalization tasks active for the specified group or subgroup, while SVTn STOP PTASKID stops only one task.
SVTn STOP PTaskid=nn
Where nn is an active task number (01-99).
Example of information displayed by the STOP PTASKID= command
SVT1 STOP PTASKID=01 SVT1X0101I Command Scheduled in SVTS SVT1X0100I Command Complete SVT1A2200I SVT1PT 01 Taskid terminated IEF196I IOS071I 074D,2F,SVTSAS, HALT SUBCHANNEL INTERRUPT MISSING IOS071I 074D,2F,SVTSAS, HALT SUBCHANNEL INTERRUPT MISSING 860
The IBM and IOS messages are normal informational messages expected when the task is stopped while a tape drive is being allocated.
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