Dear Technical Team,
I have been using Backup Exec 2010 R3 for quite sometime, but last week backup ends with only using the tapes to half capacity only i.e., 379GB used out of 800GB original space. Tapes are C7973A 800GB RW LTO3. Backup exec was going smoothly until last week.
I have not done any changes in Backup Exec options or Media properties. Now all the tapes got full and drives are waiting for empty tapes which i cannot put bcoz both the drives are busy and i cannot execute unlock command to put scratch tapes. So I have cancelled one of the job and put new tapes erase it.
But anybody can tell why the capacity of tapes was not utilized fully instead only half. Is there any compression option i need to use.
I have noticed that Encryption is enabled with Encryption key and Encryption type is Hardware.
Pls. help me out.
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Until last week everything was ok, i did not change anything in Backup Exec Options or Job properties, there is nothing i have edited in compression also. Before i was getting around 750 GB space from the same size tape.
These are new tapes which i have erased before the backup job runs same like before what i was doing.
Pls. guide me if i have missed anything...
...those are HP tapes, and if you're using an HP drive, download HP Library and Tape Tools, stop the BE services, and then run a compression test to see what you are getting on the hardware.
When you were getting 750 GB on a 400/800 GB tape, there had to be compression involved. since you are no longer getting the desired 750 GB, it could be due to a compression issue as other have previously mentioned. It could also be due to a hardware error, specifically a clogged tape head.
I would suggest filling up a test tape with compression turned off to see if you are able to obtain the native capacity (400 GB). If not, you have a hardware issue for sure.
Here is more info:
Tapes report full before their Native Capacity is reached
I have noticed in Backup Job Properties --> Settings --> Network and Security --> Encryption Key is enabled and Encryption type is Hardware, i have tried with software but same.
I have followed below link.
Any other options do i need to try...