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Sony 4000E SCSI DAT Drive

daemon@ATHENA.MIT.EDU (Carl Olsen)
Sun May 3 20:47:14 1998

Date: 	Mon, 4 May 1998 10:45:57 +1000
From: Carl Olsen <colsen@keysoft.com.au>
To: <linux-scsi@vger.rutgers.edu>

We have just received a Sony 4000E DAT drive which is supposed to have 
hardware compression. Each time we use the tape however we get the 
following errors in syslog:

May  2 03:00:01 bulldog kernel: st0: Error with sense data: extra data 
not valid
 Current error st09:00: sense key Illegal Request
May  2 03:00:01 bulldog kernel: Additional sense indicates Invalid field 
in para
meter list
May  2 03:00:01 bulldog kernel: st0: Can't set default compression.

This is using 2.0.33 Linux on a Pentium system with and Adaptec 2940UW 
scsi card.

Our backups certainly don't get more than 2GB per tape. Does any one know 
how to enable the compression on this drive?

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