Backup Exec 12.5 - Jobs failing with hardware error

[workhorse]

Hi,.

For the last 3 weeks or so backups are failing intermittently with hardware error

Job Log: BEX_GTX-DUB-FS_04685.xml

Backup- D: 
Storage device "IBM 1" reported an error on a request to write data to media.
Error reported:
The request could not be performed because of an I/O device error.
V-79-57344-34029 - A hardware error occurred.

Verify
Storage device "IBM 1" reported an error on a request to read data from media.
Error reported:
Incorrect function.
V-79-57344-34030 - An invalid command was sent to the storage device.

I have ran all the tape diagnostics etc and everything passes fine.

If you look at the attached screenshot it almost always errors at a simliar stage of the backup.

Is it possible corrupt files are to blame here?
I dont have much experience with 12.5 How do I dig deeper in to this and see where it failed in more detail.

Any other suggestions would be great. I need this working again qucikly.

Thanks

[Larry_Fine]

What is "IBM 1" and how is it connected?

If it has been working fine for all these many years, it wouldn't be surprising if it is worn out.  I would certainly focus on the tape drive, the cable & the HBA.  Are the firmware versions current or have they been changed lately?

If something was wrong with the data, then I would expect the backup to fail every time, unless the files are flip-flopping states.