We have a SunFire V480 server running Solaris 9 (36GB HD) that has a external HP SureStore DAT tape drive attached. The tape drive is DDS4; native 20GB capacity with 40GB compressed. We have exceeded the 20GB capacity.
How can I set the data compression so I will be able to use all of the tape drive capacity?
I was told to change "/dev/rmt/1n" (1n is what we use now) to "/dev/rmt/1un" (ultra) but that did not work.
Your help will be greatly appreciated!