Date: Sat, 30 May 98 15:09:57 PDT From: john@fea.com (John Fox) To: freebsd-questions@FreeBSD.ORG Cc: john@fea.com Subject: compressed mode on SCSI DAT drive DEC TLZ06 Message-ID: <9805302209.AA11986@dollar.fea.com>
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I have a couple of DEC TLZ06 SCSI tape drives that support uncompressed and compressed modes. I have a manual that says 0xfe is the (vendor specific) density code for compressed mode and 0xfd for uncompressed. The drives work fine in the uncompressed mode (using the DDS density code 0x13). But I don't know how to reset the density for the compressed mode. "mt density 0xfe" doesn't work. It says "mt: density: Invalid argument" and logs /kernel: st0(ahc0:4:0): ILLEGAL REQUEST asc:26,0 Invalid field in parameter list sks:8f,4 /kernel: st0: Cannot set selected mode The manual has instructions for reconfiguring the SunOS kernel, but I can't see any clear way to apply them to any of the tables in /sys/scsi/scsiconf.c. Thanks for any pointers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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