Re: Borked MD RAID...

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That would be the only static location that I'm aware of.  What does
'mdadm --detail /dev/md0' return ?

On Tue, Dec 2, 2008 at 8:50 PM, Eitan Tsur <eitan.tsur@xxxxxxxxx> wrote:
> Not in /etc/mdadm.conf...  Where else could it be defined?
>
> On Tue, Dec 2, 2008 at 3:53 PM, Lonni J Friedman <netllama@xxxxxxxxx> wrote:
>>
>> Are you sure that you don't have a spare designated somewhere?
>>
>> On Tue, Dec 2, 2008 at 2:32 PM, Eitan Tsur <eitan.tsur@xxxxxxxxx> wrote:
>> > Ok, so here's what /proc/mdstat says after a clean reboot:
>> >
>> > Personalities : [raid6] [raid5] [raid4]
>> > md0 : active raid5 sdb1[0] sdc1[1]
>> >       1465143808 blocks level 5, 256k chunk, algorithm 2 [3/2] [UU_]
>> >
>> > md_d0 : inactive sdd[2](S)
>> >       732574464 blocks
>> >
>> > unused devices: <none>
>> >
>> > I basically have to do:
>> >
>> >>mdadm --stop /dev/md_d0
>> >>mdadm --add /dev/md0 /dev/sdd1
>> >>cat /proc/mdstat
>> > Personalities : [raid6] [raid5] [raid4]
>> > md0 : active raid5 sdd1[3] sdb1[0] sdc1[1]
>> >       1465143808 blocks level 5, 256k chunk, algorithm 2 [3/2] [UU_]
>> >       [>....................]  recovery =  0.4% (3269252/732571904)
>> > finish=153.7min speed=79057K/sec
>> >
>> > unused devices: <none>
>> >
>> > Furthermore, the first time I saw this, it was /dev/sdb that had
>> > dropped.
>> > Yesterday it was /dev/sdc.  Today it's /dev/sdd.  That's what throws me
>> > off
>> > about this whole thing.
>> >
>> > Regards,
>> > -Eitan-
>> >
>> > On Sun, Nov 30, 2008 at 2:41 PM, Lonni J Friedman <netllama@xxxxxxxxx>
>> > wrote:
>> >>
>> >> On Sun, Nov 30, 2008 at 2:38 PM, Eitan Tsur <eitan.tsur@xxxxxxxxx>
>> >> wrote:
>> >> > I just recently installed a 3-disk RAID5 array in a server of mine,
>> >> > running
>> >> > FC9. Upon reboot, one of the drives drops out, and is allocated as a
>> >> > spare.
>> >> > I suspect there is some sort of issue where DBUS re-arranges the
>> >> > drive-to-device maps between boots, but I am not sure... Just kind of
>> >> > annoying to have to stop and re-add a drive every boot, and wait the
>> >> > couple
>> >> > hours for the array to rebuild the 3rd disk. Any thoughts? Anyone
>> >> > else
>> >> > encountered such an issue before? What should I be looking for? I'm
>> >> > new
>> >> > to
>> >> > the world of RAID, so any information you can give may be helpful.
>> >>
>> >> What's in /etc/mdadm.conf, /proc/mdstat and dmesg when this fails ?



-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
L. Friedman                                    netllama@xxxxxxxxx
LlamaLand                       https://netllama.linux-sxs.org

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