Date: Tue, 25 Mar 2003 21:39:22 -0500 From: "Bob Perry" <rperry4@earthlink.net> To: "Bob Perry" <rperry4@earthlink.net>, "taxman" <taxman@acd.net>, "Josh Paetzel" <friar_josh@webwarrior.net> Cc: freebsd-questions@freebsd.org Subject: Re: dmesg Analysis Message-ID: <00a001c2f340$eb5f67f0$0501a8c0@HOMEFREE> References: <005701c2f273$6f9bd680$0501a8c0@HOMEFREE> <20030325021300.GG716@ns1.webwarrior.net> <010a01c2f279$0adc2780$0501a8c0@HOMEFREE> <200303242313.46575.taxman@acd.net> <016b01c2f287$6d011750$0501a8c0@HOMEFREE>
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----- Original Message ----- From: "Bob Perry" <rperry4@earthlink.net> To: "taxman" <taxman@acd.net>; "Josh Paetzel" <friar_josh@webwarrior.net> Cc: <freebsd-questions@freebsd.org> Sent: Monday, March 24, 2003 11:31 PM Subject: Re: dmesg Analysis > > ----- 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 Due to the timing of the whole event, I never gave the hardware a thorough check. I checked the connections but nothing more. I forgot to check the two-week old Travan 20GB tape cartridge. It was broke! I stuck in an older (3 year old) cartridge and it works just fine. Thanks to everyone for your time and input. I won't forget this one. Bob
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