Date: Fri, 21 Jan 2011 10:31:24 -0700 From: "Kenneth D. Merry" <ken@freebsd.org> To: Matthew Jacob <mj@feral.com> Cc: freebsd-scsi@freebsd.org Subject: Re: rescan causes offlined tape to reload Message-ID: <20110121173124.GA88957@nargothrond.kdm.org> In-Reply-To: <4D39C16C.7060508@feral.com> References: <4D38C44D.6080703@feral.com> <ihb5as$sre$1@hairball.ziemba.us> <4D39AA80.6020609@feral.com> <ihcd3b$2i5p$2@hairball.ziemba.us> <4D39C16C.7060508@feral.com>
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It's a START STOP UNIT command, with the LOEJ and START bits set. Depending on what the tape drive returns when there is no media in the drive (camcontrol tur sa0 -v will tell you), the error recovery code is probably treating it like a disk/cd drive and trying to load the media. Ken On Fri, Jan 21, 2011 at 09:25:00 -0800, Matthew Jacob wrote: > I'm a little baffled. I can't find any place in the kernel source that > issues a LOAD_UNLOAD (START_STOP) with IMMED and RETEN set (0x3). What > *specifiic* kernel source do you have? Is this an SVN tree? > > On 1/21/2011 8:43 AM, G. Paul Ziemba wrote: > >mj@feral.com (Matthew Jacob) writes: > > > >>On 1/20/2011 9:24 PM, G. Paul Ziemba wrote: > >>>.... > >>># camcontrol rescan all > >>> > >>>Jan 20 21:08:40 hairball kernel: (probe4:sym0:0:4:0): TEST UNIT READY. > >>>CDB: 0 0 0 0 0 0 > >>>Jan 20 21:08:44 hairball kernel: (probe4:sym0:0:4:0): LOAD UNLOAD. CDB: > >>>1b 0 0 0 3 0 > >>>Jan 20 21:09:34 hairball kernel: sym0:4:control msgout: 80 6. > >>>Jan 20 21:09:34 hairball kernel: (probe4:sym0:0:4:0): TEST UNIT READY. > >>>CDB: 0 0 0 0 0 0 > >>>Jan 20 21:09:34 hairball kernel: (probe4:sym0:0:4:0): INQUIRY. CDB: 12 0 > >>>0 0 24 0 > >>Okay, you've proved that the probe code is issuing this. That's wrong. > >>Let me chase what has happened here. > >thanks! > _______________________________________________ > freebsd-scsi@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-scsi > To unsubscribe, send any mail to "freebsd-scsi-unsubscribe@freebsd.org" -- Kenneth Merry ken@FreeBSD.ORG
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