Date: Mon, 29 Jan 1996 01:59:04 +0100 (MET) From: J Wunsch <j@uriah.heep.sax.de> To: roberto@keltia.freenix.fr (Ollivier Robert) Cc: freebsd-scsi@freebsd.org Subject: Re: mt Message-ID: <199601290059.BAA05505@uriah.heep.sax.de> In-Reply-To: <199601282136.WAA26449@keltia.freenix.fr> from "Ollivier Robert" at Jan 28, 96 10:36:36 pm
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As Ollivier Robert wrote: > > The support for controlling of the compression for DATs is > experimental. It seem to work with my HP C1533A but may not work with > other drives. > ------------------------------------------------------------ > > Is there any chances to have some of these merged in our mt (especially the > last part about the DAT) ? The code is almost there in the scsi subsystem. Well, mt(1) is really not the problem. Once the kernel support is there, adding the functionality for compression is about 5 lines (or even less). > BTW, I've tried to edit the compression field of the 0x10 page with scsi(8) > and the patch Jörg posted for scsi_modes (it hasn't been put in current I > think) but this field was not available... This basically means your drive doesn't support it. My HP DAT at work lets me edit the field, but any attempt to save the mode page (even unmodified) results in a parameter list length error. :-( I'm stomped without a SCSI reference manual for the drive, but yet failed to find one. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
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