On Tue, 2005-08-09 at 13:31 -0300, Sebastian Jeremias wrote:
Hi, I'm having troubles compressing a DDS-4 tape. I have an HP C5683A drive, and when I do 'mt -f /dev/nst0 status' (or mtst) I get:
twist:/opt/ltt # mtst -f /dev/nst0 status SCSI 2 tape drive: File number=0, block number=0, partition=0. Tape block size 0 bytes. Density code 0x8c (EXB-8505 compressed). Soft error count since last status=0 General status bits on (41010000): BOT ONLINE IM_REP_EN
The problem is that it's not using compression, although it's turned on. My questions are: - Is EXB-8505 the right compression mode? I read you could change it to DDS-4, but what's the compression code for DDS-4? - Do I need a hardware specific driver for the SCSI controller for the O.S. to recognize the tape in the proper way? - Something I'm missing?
Thanks in advance, Sebastian Try this command instead:
mt -f /dev/st0 datcompression to see the status of compression. Use mt -f /dev/st0 datcompression 2 to turn it on. -- Ken Schneider UNIX since 1989, linux since 1994, SuSE since 1998 "The day Microsoft makes something that doesn't suck is probably the day they start making vacuum cleaners." -Ernst Jan Plugge