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backing up to scsi disk?
Date: Fri, 9 Aug 1991 06:09 EDT
From: Robert W. Kerns <firstname.lastname@example.org>
Date: Thu, 8 Aug 1991 19:16-0400
From: email@example.com (Barry Margolin)
Actually, what would be nice would be an option to dump and restore
to/from ordinary files. I could then dump to an ordinary Unix file or a
file on our optical disk jukebox. I once tried to make use of some of
the code I saw in the dumper source to redirect the dumper stream to a
file stream, but it didn't work; the dumper sends messages that are only
implemented by the tape stream flavors.
But I believe (without trying it or looking at the dumper code to
refresh my memory), that they're the same as the messages accepted
by si:embedded-length-8-bit-output-stream and
si:embedded-length-8-bit-input-stream. This accepts all of the
messages I remember from the tape/RTAPE protocol.
I think the function that I saw in the dumper, and which I tried to use,
was LMFS:BACKUP-SIMULATE-TAPE. I figured that this was intended to let
you emulate a tape with a file stream; when it didn't work, I assumed
that it was just obsolete and hadn't been enhanced as the dumper's needs