VMTVOL0701I HiDRO backup failed when trying to select a scratch

Products

• VM:Tape for z/VM

Issue/Introduction

VMTVOL0701I HiDRO backup failed when trying to select a scratch.

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

Resolution

 
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.