help with degraded raid1 array

help with degraded raid1 array

[scar]

i need some help troubleshooting a degraded raid1 array

in /proc/mdstat i have:
Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5]
[raid4] [ra
id10]
md0 : active raid1 sdc1[2](F) sdb1[1]
      976759936 blocks [2/1] [_U]

and this seems to be some relevant stuff from dmesg:
http://pastebin.com/njXt4LuK
looks like there are problems with both my disks? (ata3 and ata4)

after restarting the array, it looks like it's being rebuilt, now
/proc/mdstat is showing:

Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5]
[raid4] [raid10]
md0 : active raid1 sdd1[2] sdc1[1]
      976759936 blocks [2/1] [_U]
      [>....................]  recovery =  1.1% (11347200/976759936)
finish=222.7min speed=72230K/sec

unused devices: <none>

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Re: help with degraded raid1 array

[Mikael Abrahamsson]

On Mon, 4 Mar 2013, scar wrote:

> looks like there are problems with both my disks? (ata3 and ata4)

You're getting ABRT and DRDY. Use smartctl to verify that you don't have 
any "pending" or "offline_uncorrectable" sectors on the drives. If they 
are 0, then most likely it's a controller or cabling issue.

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se

Re: help with degraded raid1 array

[scar]

Mikael Abrahamsson @ 03/04/2013 10:03 PM:
> You're getting ABRT and DRDY. Use smartctl to verify that you don't have
> any "pending" or "offline_uncorrectable" sectors on the drives. If they
> are 0, then most likely it's a controller or cabling issue.

thanks. both attributes are 0 for both disks, but i noticed one of the
disks has 3 reallocated sectors and the other has 348.  they have been
powered on for 4.2 years so maybe they are still under seagate's
warranty.  probably need to dust out the insides of the system too...


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