freebsd stable - Nov 2008 - atacontrol missing drive after upgrade to 6.3

I upgraded from 6.2 to 6.3 p5 last night. Upon rebooting, the second disk in the
mirror is missing.

# atacontrol status ar0
ar0: ATA RAID1 status: DEGRADED
 subdisks:
   0 ad0  ONLINE
   1 ---- MISSING

# grep ata /var/run/dmesg.boot
ad0: 238475MB <WDC WD2500AVJB-63UDA0 00.02C01> at ata0-master UDMA100
ad1: 238475MB <WDC WD2500AVJB-63UDA0 00.02C01> at ata0-slave UDMA100
ar0: disk0 READY (master) using ad0 at ata0-master
ar1: disk1 READY (mirror) using ad1 at ata0-slave

I am unsure how to re-add the disk, or if this is a bug. I noticed a number of
fixes for atacontrol.c beyond the current version in 6.3 (1.36.2.6)
http://www.freebsd.org/cgi/cvsweb.cgi/src/sbin/atacontrol/atacontrol.c

Obviously it won't rebuild
# atacontrol rebuild ar0
atacontrol: ioctl(IOCATARAIDREBUILD): Input/output error

Do I do?
atacontrol detach ata0-slave
&& atacontrol attach ata0-slave && atacontrol addspare ad1 ar0 
&& atacontrol rebuild ar0

(not sure what channel I am supposed to be using) Or is this something that
requires atacontrol.c to be patched?

I am not sure where to start, so I thought I would ask here first before trying
anything.

btw, its Intel ICH5:
atapci1: <Intel ICH5 SATA150 controller> port
0xc000-0xc007,0xc400-0xc403,0xc800-0xc807,0xcc00-0xcc03,0xd000-0xd00f irq 18 at
device 31.2 on pci0

Thank you in advance for any help you can provide.

Mark


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On Wed, Nov 19, 2008 at 09:15:12AM -0800, Mark Sams
wrote:
> I upgraded from 6.2 to 6.3 p5 last night. Upon rebooting, the second disk
in the mirror is missing.
> 
> # atacontrol status ar0
> ar0: ATA RAID1 status: DEGRADED
>  subdisks:
>    0 ad0  ONLINE
>    1 ---- MISSING
> 
> # grep ata /var/run/dmesg.boot
> ad0: 238475MB <WDC WD2500AVJB-63UDA0 00.02C01> at ata0-master UDMA100
> ad1: 238475MB <WDC WD2500AVJB-63UDA0 00.02C01> at ata0-slave UDMA100
> ar0: disk0 READY (master) using ad0 at ata0-master
> ar1: disk1 READY (mirror) using ad1 at ata0-slave
> 
> I am unsure how to re-add the disk, or if this is a bug. I noticed a number
of fixes for atacontrol.c beyond the current version in 6.3 (1.36.2.6)
> http://www.freebsd.org/cgi/cvsweb.cgi/src/sbin/atacontrol/atacontrol.c
> 
> Obviously it won't rebuild
> # atacontrol rebuild ar0
> atacontrol: ioctl(IOCATARAIDREBUILD): Input/output error
> 
> Do I do?
> atacontrol detach ata0-slave
> && atacontrol attach ata0-slave && atacontrol addspare ad1
ar0
> && atacontrol rebuild ar0
> 
> (not sure what channel I am supposed to be using) Or is this something that
requires atacontrol.c to be patched?
> 
> I am not sure where to start, so I thought I would ask here first before
trying anything.
> 
> btw, its Intel ICH5:
> atapci1: <Intel ICH5 SATA150 controller> port
0xc000-0xc007,0xc400-0xc403,0xc800-0xc807,0xcc00-0xcc03,0xd000-0xd00f irq 18 at
device 31.2 on pci0
You're using Intel MatrixRAID, aren't you?  Please migrate away from
this immediately, your data is at risk.

http://wiki.freebsd.org/JeremyChadwick/ATA_issues_and_troubleshooting

The problem you're experiencing is documented there.

There is no solution, as far as I know.  The problems still exist on
RELENG_7 also.

I recommend you back up (off-load) all of your data onto a disk or
system somewhere else, and use gmirror(8) instead.  Please, stay away
from Intel MatrixRAID on FreeBSD.

-- 
| Jeremy Chadwick                                jdc at parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |