Date: Sun, 1 Nov 1998 19:52:46 +0100 From: Bernd Walter <ticso@cicely.de> To: "Kenneth D. Merry" <ken@plutotech.com>, "John W. DeBoskey" <jwd@unx.sas.com> Cc: freebsd-current@FreeBSD.ORG Subject: Re: scsi disk (cam?) problems Message-ID: <19981101195246.10586@cicely.de> In-Reply-To: <199811010208.TAA27408@panzer.plutotech.com>; from Kenneth D. Merry on Sat, Oct 31, 1998 at 07:08:50PM -0700 References: <199811010132.UAA04810@bb01f39.unx.sas.com> <199811010208.TAA27408@panzer.plutotech.com>
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On Sat, Oct 31, 1998 at 07:08:50PM -0700, Kenneth D. Merry wrote: > John W. DeBoskey wrote... > > Hi, > > > > My -CURRENT system has been experiencing problems since I converted > > it to cam awhile back. The following show up on my console, and then > > my disks are useless until I completely shutdown, powerdown my drive > > array, power it back on, and reboot. I have 4 identical drives configured > > as a ccd. They have been serving me well more about a year... > > > > If anyone has any ideas on how I can track down the problem, please > > let me know! > > > > Thanks, > > John > > > > /dev/ccd0a 2155550 1268428 714678 64% /snap > > /dev/ccd0b 2155550 1020154 962952 51% /usr/obj > > /dev/ccd0d 17244630 12876242 2988818 81% /pub > > > > Snipped from messages: (This kernel was built on the 28th), I'm now on > > a kernel built Oct 31. > [ ... ] > > > Oct 30 10:52:35 FreeBSD /kernel: (da2:ahc0:0:3:0): Invalidating pack > > Oct 30 10:52:35 FreeBSD /kernel: (da2:ahc0:0:3:0): Invalidating pack > > Well, what's happening here is that one of your disks is returning an > error, and keeps returning that error. Reads and writes in the da driver > have a retry count of 4. So by the time we print out the message above, > the command has already been retried four times. We may also have taken a > number of error recovery actions to try to bring the device back. > Very interesting. I've saw the same message yesterday: Oct 31 20:10:18 cicely5 /kernel: (da23:ahc4:0:1:0): Invalidating pack I was writing to a mounted fs on da23 <SHARP JY800 MODC 2.45> during that I received this message. Can't unmount: root@cicely5# umount /mnt umount: /mnt: Device not configured But I can send commands via camcontrol to the drive. Rescan won't help. Havn't rebooted yet. Is there any way to get this drive working again without rebooting? > How often does this happen? Could you try booting with -v, and see if you > can reproduce the problem? I think that that (booting with -v) should > cause the error to be printed out. If I know the error, I may be able to > help you work around it, or at least tell you that one of your disks is on > the blink. For me it's the first and only one till now. -- Mfg B.Walter To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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