By default, this value is configured to Abort the backup, but this is not really useful in situations that drive had an error removing the tape.
So in this cases that a tape hangs there, we receive this error in the session:
[Critical] From: MMA@mediaagent "HP:Ultrium 6-SCSI_1_ult01dp125" Time: 6/13/2019 9:08:17 AM
[90:63] => UMA@mediaagent@scsi3:0:0:0
Cannot load exchanger medium (Target drive is busy.)
If we change this value to Eject medium can save us this error.
This does not affect other backup operation performed for the CM because it detects that the device is being used for the same DP and just move the new backup to the queue.
Also, this change will save extra work going to the library and move the tape manually.