07-07-2011 03:42 AM
Really appreciate any assistance or thoughts you can think of
Cheers
Ben
OS: Windows Small Business Server 2008
Software version: Backup Exec 12.5 (Small Business Server suite) rev 2213 with sp4
Backup hardware: HP DAT 320 USB (which IS on the HCL for this version)
Problem: Media type not listed
Details: The drive is installed and actually backing up correctly
HOWEVER, the data size has now exceeded 80GB and the job has started to spit the tape out and ask for another one
When I go into the tape drive properties and then the media types tab it only lists up to DAT 160 (80GB)
I have tried all combinations of drivers etc and get the same result every time
Question: How can I make Backup Exec use 320GB tapes?
07-07-2011 04:05 AM
Did you tried using different USB port ? Well 1st I would sugges you to take how much data can the tape accomodate using the OEM drivers , see if it can store 320 gb data or it cannot . if it cannot you would need to contact HP or run some utility to check the drive from Hp .
07-07-2011 04:18 AM
According to BE 12.5 HCL "Capacity and compression reporting is not currently supported for this device."
This may be causing the issue...
Thanks..
07-07-2011 09:45 AM
You will most likely never get 320 GB on a single media, but you should get at least 160GB
What kind of media are you using?
Are you using the Symantec drivers or HP? have you tried switching?
07-13-2011 04:22 AM
Thanks for the replies guys, I will reply in order
Rahul
Yes, I have tried other USB ports
I have tried a backup using WindowsServerBackup (the frankly rubbish replacement for NTbackup in server 2008) and it backed up 115GB of data so I'm happy the drive is OK
Kiran
That sounds like it would cause the issue.
Any idea on a solution -is it supported undfer 2010 for example?
Or are there plans to update the driver database?
Ken
Yeh, I appreciate that you'll never achieve perfect compression
However, the native capacity is 160GB so I would expect to be able to get 180+GB
Yet the backup is spitting the tape out asking for another after 80GB
This leads me to believe it is because the maximum media size listed DAT-160 (80/160GB)
I have tried all kinds of drivers and rebooted the server each time when switching between
Any other help please?
07-13-2011 06:29 AM
Hi,
Upgrading to BE 2010 may resolve your issue. You can upgrade directly to BE 2010 R3.
Your tape device is listed in the hardware compatibility list of BE 2010 without any exceptions.
BE HCL: http://www.symantec.com/docs/TECH137050
Note: For all USB drives vendor's device drivers must be installed prior to starting Backup Exec.
Regards....
07-13-2011 06:06 PM
Yet the backup is spitting the tape out asking for another after 80GB
It could be that you are compressing data which is already compressed, like zipped files, movies and sound clips. Compression such data can result in file which is bigger than the original. See my article on this subject
https://www-secure.symantec.com/connect/articles/compression-short-explanation
If you are using compression, you might want to turn it off as a test. You just might get more data onto your tape.
07-15-2011 09:05 AM
Kiran
Yeh, I've done that. I will download and evaluate 2010 and update on how that goes
PKH
The native capacity of the tape is 160GB, the drive is a DAT 320, I really cant believe that compression would halve the native capacity
07-15-2011 10:49 AM
I really cant believe that compression would halve the native capacity
What type of media are you using?
07-15-2011 06:08 PM
Have you read my article on how this could happen? If you don't believe me, zip up a file which is already zipped and see the result.