0xe00084f4 or 0xa00084f4 - "An unknown error has occurred" / Tapes show End Marker unreadable
or E000810c - Physical Volume Library Drive not available.
V-79-57344-34036 - Final error: 0xe00084f4 - An unknown error has occurred.
Event Logs: Backup Exec Alert: Job Failed - The job failed with the following error: Physical Volume Library Drive not available
The above error is caused by failing hardware (tape, tape device or drive, adapter card, cable and/or terminator).
2. Check the tape and/or tape device for "end marker unreadable" and/or multiple soft/hard read/write errors. If found, perform the steps below:
- Run a long erase on the tape showing the errors OR run a cleaning job on the tape drive showing the errors
- Re-run the backup job to tape
3. If it is HP tape library, disable the HP server management agents by following the below technical article that will fix the problem,
In Backup Exec 2012, the 'End marker unreadable' is shows under 'Overwrite Protected Until' as shown below:
and read write errors are show under Statistics, as shown below: