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Date:      Tue, 7 May 1996 21:38:02 +0200
From:      se@zpr.uni-koeln.de (Stefan Esser)
To:        scsi@freebsd.org
Subject:   Re: SCSI abort
Message-ID:  <199605071938.AA04492@Sisyphos>
In-Reply-To: Toerless Eckert <Toerless.Eckert@informatik.uni-erlangen.de> "SCSI abort" (May  7, 20:43)

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On May 7, 20:43, Toerless Eckert wrote:
} Subject: SCSI abort
} Hi
} 
} I was wondering if you could help me out with the following problem:
} 
} I need to issue a SCSI "locate" command to a tape drive, that may need
} to be aborted. This is used for audio DAT scsi, where the "locate" command
} is meant to do "fast-forward" or "fast-backward" seeking and the
} abort will simply terminate this seeking. How culd one initiate to
} abort an issued SCSI command with FreeBSD. Is it possible ? has it been
} tried ? will it work ? Is there a chance to issue SCSI-commands
} asynchronuously anyhow ?

This is possible by sending the 
ABORT message to the target, if 
it has disconnected before.

See section 6.6.1 in the SCSI-2 
draft (guess its the same section
in the final document).

Didn't check whether it is possible
to send a SCSI message without a
SCSI command under FreeBSD (don't
access to my system, currently) ...

Regards, STefan
-- 
 Stefan Esser, Zentrum fuer Paralleles Rechnen		Tel:	+49 221 4706021
 Universitaet zu Koeln, Weyertal 80, 50931 Koeln	FAX:	+49 221 4705160
 ==============================================================================
 http://www.zpr.uni-koeln.de/~se			  <se@ZPR.Uni-Koeln.DE>



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