Date: Tue, 19 May 1998 09:24:25 -0700 (PDT) From: David Wolfskill <dhw@whistle.com> To: druber@mail.kersur.net, freebsd-questions@FreeBSD.ORG Subject: Re: scsi tape status? Message-ID: <199805191624.JAA04563@pau-amma.whistle.com>
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>Date: Mon, 18 May 1998 20:54:14 -0400 (EDT)
>From: Dan Swartzendruber <druber@mail.kersur.net>
>Is there any way to get the online/offline status for a SCSI DAT drive?
>I'm running 2.2.6 and am trying to get multi-tape support to work for
>Amanda 2.4.0, but the multi-device script uses 'mt status' to probe for
>the status of the drive. Unfortunately, 'mt status' doesn't seem to
>print anything other than density/compression information (certainly
>nothing that seems related to whether there is a cartridge in the drive).
I was recently looking around in the same area, for a similar reason --
I have a home-grown PErl script I've used for backups on various
systems, and since I tend to stack multiple files on a given cartridge,
I ahd been using "mt status" to report the file number (position).
Unfortunately, I found (when I brought the Perl script over to the
FreeBSD environment), "mt status" doesn't report that.
I tried hacking "mt.c" to report what was in the struct mtget (see
/usr/include/sys/mtio.h), but the "file" & "block" numbers are in the
"not yet implemented" section, as borne out by the results I was getting
-- 0, even after "mt -f /dev/nrst0 fsf".
And I didn't see anything in that struct that would indicate o{ff,n}line
status, sorry.
david
--
David Wolfskill dhw@whistle.com (650) 577-7158 pager: (650) 371-4621
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