sbp, camcontrol, and Tagged Queuing
Drew Tomlinson
drew at mykitchentable.net
Thu Mar 17 19:08:53 PST 2005
I posted this a while back and am still having the same problem. Can anyone
offer any insight as to if the sbp man page suggestion about tagged queuing
is something I should try? Is there any risk of screwing up my drives by
trying this?
Thanks,
Drew
-------- Original Message --------
Subject: Help Interpreting sbp0 Errors
Date: Mon, 24 Jan 2005 11:43:21 -0800
From: Drew Tomlinson <drew at mykitchentable.net>
I've been having problems with vinum volumes since an upgrade from 4.9
to 4.10 which I posted about here:
http://docs.freebsd.org/cgi/mid.cgi?41D748F0.1000303
However maybe that is the *symptom* instead of the *problem*. I shut
down my system from the console and saw this output:
--- BEGIN ---
boot() called on cpu#0
Waiting (max 60 seconds) for system process `vnlru' to stop...stopped
Waiting (max 60 seconds) for system process `bufdaemon' to stop...stopped
Waiting (max 60 seconds) for system process `syncer' to stop...stopped
syncing disks... 4
done
Uptime: 28d20h48m39s
sbp0:0:0 request timeout(mgm orb:0x0a550b14) ... reset start
sbp0:0:0 request timeout(cmd orb:0x0a550c4c) ... agent reset
(da2:sbp0:0:0:0): Synchronize cache failed, status == 0xb, scsi status
== 0x0
sbp0:0:1 request timeout(cmd orb:0x0a5528a4) ... agent reset
(da3:sbp0:0:0:1): Synchronize cache failed, status == 0xb, scsi status
== 0x0
The operating system has halted.
Please press any key to reboot.
--- END ---
da2 and da3 are two IDE drives in a firewire enclosure. These are also
the drives that come up "referenced" after restarting. What do these
errors mean? How can I correct them? Is the following section from the
sbp man page applicable to my situation?
Some (broken) HDDs don't work well with tagged queuing. If you have prob-
lems with such drives, try ``camcontrol [device id] tags -N 1'' to dis-
able tagged queuing.
Thanks for your help!
Drew
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