BE 2010 disables hardware compression on lto drive

[Dennis_K5121]

Hi,

i'am using BE 2010 R2 SP1 to backup my system on a HP autoloader with an ultrium LTO4 drive.

I set up my backup job for using hardware compression - but in every backup the compression rate is 1:1

I checked the tape settings - here it says, that data compression is disabled - so I did the HP compression selftest and it says "Before running this test L&TT determined that your hardware compression algorithm is switched off. This is probably set by your backup software..."

The test automaticly enabled the compression and ended up successfully with a compression rate of 2.61 : 1

I manually enabled the hardware compression, but the next job also ended without compressing anything and the status of the drive was set back to "data compression: disabled"

So it seems, that the problem is caused by BE - can anybody help me why BE disables the hardware compression

[Ken_Putnam]

From the devices tab, right click your drive \ properties

Verify that "Enable Hardware Compression" is checked

[Ben_L_]

BE turns off hardware compression on the device during the detection of the device when the services is started.  Check out this technote to verify compression is working properly.

http://www.symantec.com/docs/TECH50766