VMTVOL0701I HiDRO backup failed when trying to select a scratch

Document ID : KB000073539
Last Modified Date : 15/03/2018
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Introduction:
VMTVOL0701I HiDRO backup failed when trying to select a scratch.
Question:
We experienced a problem with our HiDRO backup job that failed with the following when trying to select a scratch;
 
VMTVOL0701I MOUNT HIDRO 0351 waiting for volume HO0062 which is mounted on 0000.
 
What does this mean and how can we get a scatch mounted?
 
Environment:
VM:Tape, HiDRO, IBM ATL and DFSMS
Answer:
 
Volume HO0062 which is "mounted on 0000" ...this is RMSMASTR reporting that the volume is in use. When VM:Tape queried the volume, RMS came back and said the tape is mounted on another system.
It could also indicate the volume is in INSERT status. 
Issue a native DFSMS command to QUERY the tape to check its status.
 
A best practice is to check the tapes out when you EJECT them so they will not be selected. 

You may want to consider using VM:Tape's CHECKIN and CHECKOUT processing. 
When you do, make sure the RMS EJECT processing and VM:Tape's CHECKOUT/CHECKIN procedure are in sync.