On Monday 12 November 2001 05:01 pm, Philippe Troin wrote: > Martin Sanborn <[EMAIL PROTECTED]> writes: > > How do I turn on the data compression? The mt man page indicates that > > > > mt -f /dev/tapes/tape0/mtn datcompression [x] > > mt datcompression 1 (default) reports the current state > mt datcompression 0 turns it off > mt datcompression 2 turns it on
Unfortunately, the command mt -f [device] datcompression 2 returns Compression off. Compression capable. Decompression capable. I retried dump again just in case it wasn't reporting the compression as on, but still the same behavior (a little less than 4GB on the tape). > You might also want to investigate the mt-st package which should give > you more control on SCSI tape behavior. That one doesn't want to talk to me. I installed it, and I used the command "mt-st -f [device] defcompression". While the tape spins, when it stops it returns nothing. I tried appending a 0,1, or 2 to the end of the command, but it still returns nothing. Again, I tried dump after using the "mt-st defcompression 2" command, and the result is still the same. Puzzling. Marty Sanborn -- | Martin Sanborn - Dept. of Chemical Engineering - Northwestern University | | [EMAIL PROTECTED] - (847)467-1653 - http://zeolites.cqe.nwu.edu/marty |
