frequent spurious fail events on raid1

Hello
I have recently started to get frequent fail events on one of
my software raid1 devices. First thing I did was replacing
the affected hd, but the event keeps coming back even with
the new drive. no I know that one could be faulty as well,
but odd thing is: it only ever affects one partition. The
drive /dev/sdc actually holds filesystems for three raids,
but only ever one or very rarely two are affected (sdc1/2).
Before I go and buy yet another drive: could this be some
other problem?
cheers
alex

openSuse 11.2 Linux version 2.6.31.12-0.2-default
(geeko@buildhost) (gcc version 4.4.1 [gcc-4_4-branch revision
150839] (SUSE Linux) ) #1 SMP 2010-03-16 21:25:39 +0100
mdadm - v3.0.2 - 25th September 2009
cat /proc/mdstat
Personalities : [raid1] [raid0] [raid6] [raid5] [raid4]
md4 : active raid1 sdb2[0] sda1[1]
156183856 blocks super 1.0 [2/2] [UU]
bitmap: 0/149 pages [0KB], 512KB chunk

md3 : active raid1 sdd3[2] sdc3[3]
138520388 blocks super 1.0 [2/2] [UU]
bitmap: 0/133 pages [0KB], 512KB chunk

md2 : active raid1 sdg1[0] sdi1[1]
117218168 blocks super 1.0 [2/2] [UU]
bitmap: 2/224 pages [8KB], 256KB chunk

md1 : active raid1 sdc2[3] sdd2[2]
52436088 blocks super 1.0 [2/2] [UU]
bitmap: 1/201 pages [4KB], 128KB chunk

md0 : active raid1 sdc1[3] sdd1[2]
52436056 blocks super 1.0 [2/2] [UU]
bitmap: 5/201 pages [20KB], 128KB chunk

unused devices: <none>

Alex Linkenbach wrote:
> Before I go and buy yet another drive: could this be some
> other problem?

i do not know if this will be helpful, but i can tell you what i would do:

  • check the manufacturers web site and see if you have the latest BIOS

  • check the manufacturers forums and site for other linux folks having
    similar problems

  • google around looking for the same kind of info…use precise search
    terms like:

linux software raid1 [manufacturer make/model] failure OR problem OR
[exact error message]

instead of [manufacturer make/model] do something like: “Dell
Dimension E521” or “Acer Aspire One AOA150_1” with all that inside
parenthesis…and, same for the error message you see…

if you get zero hits loosen up the search terms some…like change
raid1 to “raid 1” or “raid one” or just raid…or just type “Dell
E521” leaving out the Dimension etc etc etc…


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