HP Data Protector: Cannot load exchanger medium (Target drive is busy.)

hp-dp

By checking log files for a customer of some HP DataProtector (V6.20) backups, I noticed for multiple jobs the following error message:

[Critical] From: BMA-NDMP@xxxxxx.xxxx.xxxxxxx.com “xxxx_VTLRZ102_D01” Time: 10.01.2013 08:12:18
[90:63] By: UMA@xxxxxx.xxxx.xxxxxxx.com@scsi4:0:0:0
Cannot load exchanger medium (Target drive is busy.)



All these jobs tried to use the same drive, which was busy for some unknown reason. Even a restart of a single backup job ended up with this error, if nothing else was running on the cell server.


Eject medium


I found the following workaround to get rid of this:

Below Devices & Media I located the affected device and selected Properties via right-click. Below the tab Control you find Busy drive handling (see screenshot).
I changed the default value temporary from Abort to Eject medium.

A restart of a job using this drive did unload the tape which was stuck. The session finished successfully. After changing the value back to Abort the job still finished without any problem.

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