ioctl for DAT compression

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#991

From: Mike Matthews
Date: Fri, 21 Aug 1992 12:36

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Does anyone know the ioctl or whatever to turn hardware compression ON on an
Eclipse 4mm DAT tape drive?

I know that RunningBack has the option but it's manual is actually quite
worse than anything NeXT put out (well, the manual that I've seen at least)
and doesn't say anything other than how to plug it in.

Also, is there a way to determine if a tape is in the drive and ready to go?
I tried mt -f /dev/nrst0 status but it never gave consistent errors (returned
06, then 02, then 00 without me doing anything  -- and this was after the
ready light came back on too).
------
Mike Matthews, matthews@oberon.umd.edu (NeXTmail accepted)
------
If A equals success, then the formula is:
   A= X + Y + Z
X is work. Y is play. Z is keep your mouth shut.
- Albert Einstein

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Path: arc1-ca.pugleaf.net!sparky!uunet!haven.umd.edu!umd5!oberon.umd.edu!matthews
From: matthews@oberon.umd.edu (Mike Matthews)
Newsgroups: comp.sys.next.sysadmin
Subject: ioctl for DAT compression
Message-ID: <15080@umd5.umd.edu>
Date: 21 Aug 92 12:36:32 GMT
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Originator: matthews@oberon.umd.edu