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From: Malte Lance <malte.lance@gmx.net>
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Date: Sat,  1 Aug 1998 16:03:51 +0200 (CEST)
To: "Ralf Folkerts" <folkerts@ibm.net>
Cc: "FreeBSD-Questions@FreeBSD.org" <FreeBSD-Questions@FreeBSD.ORG>
Subject: Re: DDS-II Drive and Hardware-Compression
In-Reply-To: <199807301811.SAA104710@out2.ibm.net>
References: <199807301811.SAA104710@out2.ibm.net>
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Ralf Folkerts writes:
 > -----BEGIN PGP SIGNED MESSAGE-----
 > 
 > On Thu, 30 Jul 1998 15:21:42 +0200 (CEST), Malte Lance wrote:
 > 
 > Hi Malte,
 > 
 > don't know where I had my eyes or what I have been looking for; since it's datcompr for IBM 
 > AIX and Linux maybe I looked for that and didn't see anything else :-((((
 > 
 > However, what does the phrase re. the kernel mean?? Does it mean I can set 
 > Dat-Compression with comp 1 but the drive won't be switched to that mode? What does the 
 > kernel have to do with this, as this simply should "just" be a scsi-command (like mode-select) 
 > on the device??
 > 
 > Do you know more??

No, but probably FreeBSD-scsi@FreeBSD.org
Ask there.

Malte.

 > 
 > Well, thanx for pointing my eyes on this!!!!
 > 
 > 
 > _ralf_
 > 
 > >Ralf Folkerts writes:
 > > > -----BEGIN PGP SIGNED MESSAGE-----
 > > > 
 > > > Hi,
 > > > 
 > > > I have a question re. a DDS-II Streamer (ARCHIVE  Python 28388-XXX 4.CM) and 
 > > > Hardware-Compression:
 > > > 
 > > > With OS/2's GTAK I can use "compr on" to turn on my Drive's Hardware-Compression. With 
 > > > Linux I use "mt -f /dev/rmt0 datcompression on" to activate it.
 > > > 
 > > > However, the FreeBSD mt command does not offer direct access to the 
 > datcompression-flag. 
 > > > Instead it offers me three "X.nn" Modes to select from.
 > >
 > >On my 2.2.6-system "man mt" gives:
 > >...
 > >     comp       Set compression mode.  (The kernel counterpart of this has not
 > >                yet been reported to work correctly.)
 > >...
 > >
 > >What system are you on ?
 > >
 > >Malte.
 > >
 > > > 
 > > > Unfortunately I absolutely don't know which mode corresponds to the "datcompr on" Flag. 
 > I 
 > > > also read the Manual and searched the FAQs and Mailing-List-Archives but didn't find a 
 > clue.
 > > > 
 > > > Could anybody please let me know *what* mt - mode I have to select in order to have my 
 > Drive 
 > > > use it's Hardware-Compression?!
 > > > 
 > > > MTIA,
 > > > _ralf_
 > > > 
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 > > > 
 > > > 
 > > > To Unsubscribe: send mail to majordomo@FreeBSD.org
 > > > with "unsubscribe freebsd-questions" in the body of the message
 > >
 > 
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 > 
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