On Sun, Nov 30, 2008 at 4:23 PM, Lonni J Friedman <netllama@xxxxxxxxx> wrote:
Is it always the same disk that gets marked offline ? Perhaps the
disk is actually bad?
On Sun, Nov 30, 2008 at 4:20 PM, Eitan Tsur <eitan.tsur@xxxxxxxxx> wrote:
> Even if I remove that it still happens.
>
> On Sun, Nov 30, 2008 at 3:53 PM, Lonni J Friedman <netllama@xxxxxxxxx>
> wrote:
>>
>> If you only have 3 disks, then you can't have:
>> spares=1
>>
>>
>>
>> On Sun, Nov 30, 2008 at 3:11 PM, Eitan Tsur <eitan.tsur@xxxxxxxxx> wrote:
>> >>
>> >># mdadm.conf written out by anaconda
>> >>DEVICE partitions
>> >>MAILADDR root@localhost
>> >>
>> >>ARRAY /dev/md0 level=raid5 num-devices=3 spares=1
>> >> UUID=0c21bf19:83747f05:70a4872d:90643876
>> >
>> > If I switch the "DEVICE partitions" with "DEVICE /dev/sdb1 /dev/sdc1
>> > /dev/sdd1", drives no longer are allocated as spares, however the array
>> > still seems to rebuild every boot.
>> >
>> > I don't remember the specifics of what was in /proc/mdstat at the time,
>> > but
>> > currently the array is being rebuilt. I'll reboot after it is complete
>> > to
>> > give you a copy of it. Basically it allocated the dropped drive as a
>> > spare
>> > which I'd have to mdadm -stop and mdadm -add to the original array after
>> > every boot, manually. Give me an hour or two and I'll get you the
>> > output of
>> > mdstat.
>> >
>> > 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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