Date: Mon, 24 Mar 2003 23:31:35 -0500 From: "Bob Perry" <rperry4@earthlink.net> To: "taxman" <taxman@acd.net>, "Josh Paetzel" <friar_josh@webwarrior.net> Cc: <freebsd-questions@freebsd.org> Subject: Re: dmesg Analysis Message-ID: <016b01c2f287$6d011750$0501a8c0@HOMEFREE> References: <005701c2f273$6f9bd680$0501a8c0@HOMEFREE> <20030325021300.GG716@ns1.webwarrior.net> <010a01c2f279$0adc2780$0501a8c0@HOMEFREE> <200303242313.46575.taxman@acd.net>
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----- Original Message -----
From: "taxman" <taxman@acd.net>
To: "Bob Perry" <rperry4@earthlink.net>; "Josh Paetzel"
<friar_josh@webwarrior.net>
Cc: <freebsd-questions@freebsd.org>
Sent: Monday, March 24, 2003 11:13 PM
Subject: Re: dmesg Analysis
> On Monday 24 March 2003 09:48 pm, Bob Perry wrote:
> > > On Mon, Mar 24, 2003 at 09:08:31PM -0500, Bob Perry wrote:
> > > > I recently upgraded/reinstalled 4.7 RELEASE and apparently lost use
of
> > my
> > > > SCSI tape backup system. The dmesg command indicates that FreeBSD
> > > > found
> > the
> > > > controller and tape but I don't understand much more than that.
> > > >
> > > > Does anyone know where I might find some documentation which would
> > explain
> > > > output resulting from running dmesg? For instance, one of the lines
> > reads:
> > > > sa0 at adv0 bus 0 target 4 lun 0
> > >
> > > I don't know of any docs that really explain reading a dmesg in
detail,
> >
> > but
> >
> > > I'd be willing to help you sort your issues if you posted your dmesg.
> >
> > Thanks Josh,
> >
> > I have a SCSI Seagate TapeStor system that worked fine under 4.5
RELEASE.
> > It worked equally as well when I tried a binary upgrade to 4.7. There
were
> > too many other problems with the upgrade so later I did a complete
install
> > of 4.7. This is where I found that my tape system no longer responded
to
> > any mt commands.
>
> What errors do you get? Its always good to include those.
The errors are:
w/tape inserted "Input/Output error"
wo/tape inserted "Device not configured"
>
> > I ran the command dmesg | grep sa0 for the tape device and got the
> > following:
> > sa0 at adv0 bus 0 target 4 lun 0
> > sa0: <Seagate STT20000N 6451> Removable Sequential Access SCSI-2
> > device
> > sa0: 10,000 MB/s transfers (10,000 MHz, offset 15)
> >
> > Also ran dmesg | grep adv0 for the controller:
> > adv0: AdvanSys Ultra SCSI Host Adapter SCSI ID 7, queue depth
240
> > adv0: <AdvanSys ASC3030/50 SCSI controller> port 0xb400-0xb4ff
mem
> > 0x5000000-0xd50000ff irq 11 at device 12.0 on pci0
> >
> > My kernel SCSI controller data reads:
> > adv0 at isa?
> > My kernel SCSI peripheral data reads:
> > sa Sequential Access (tape, etc)
> >
> > The best I can pull from this is that FreeBSD finds the tape and
controller
> > when it boots.
>
> Yep, that's exactly it. So since it sees it, I don't have any idea what
would
> cause the problem in it not working. As I mentioned, you'll have to
include
> the error.
> Since it's not likely a problem in how FreeBSD sees the device, the links
on
> how to read dmesg will not help you that much, but hopefully will be
> instructive anyway.
>
> Tim
>
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