The wait time as established by the DFSMShsm SETSYS command for open or end-of-volume (EOV) processing of a tape data set has elapsed and open or EOV processing has not returned control to DFSMShsm. If the tape with volume serial number volser is available and can be mounted within the next mount wait time period, reply Y. Otherwise, reply N. If the reply is Y, and the wait time again elapses before open or EOV processing completes, open or EOV fails and the currently running task is detached.
The current DFSMShsm task waits until a reply is received. If the waiting task holds resources critical for DFSMShsm processing, all of DFSMShsm may eventually be waiting for the reply.
If the reply is Y, DFSMShsm resets the time to the user mount wait time and continues to wait for mount completion.
If the reply is N, the mount request ends and the DFSMShsm function (migration, recall, backup, recovery, or recycle) ends if the mount was for an input volume or continues using another volume if the mount was for an output volume. If the reply is N and the DFSMShsm function is volume dump or volume restore using DFSMSdss, the mount request ends and the DFSMShsm function ends.
If the tape with volume serial number volser is available and can be mounted within the time allowed, reply Y and mount the specified tape. Otherwise reply N. If the time period is not known, issue the QUERY command with the SETSYS parameter and look at the MOUNT WAIT TIME value displayed in message ARC0147I.
DFSMShsm