Thread (7 messages) 7 messages, 2 authors, 2013-10-10

Re: Broken array, trying to assemble enough to copy data off

From: Digimer <hidden>
Date: 2013-10-10 16:20:20

On 10/10/13 08:44, Phil Turmel wrote:
Good morning,

On 10/09/2013 07:41 PM, Digimer wrote:
quoted
I forgot to add the smartctl output;

/dev/sdb: http://fpaste.org/45627/13813614/
/dev/sdc: http://fpaste.org/45628/38136150/
/dev/sdd: http://fpaste.org/45630/36151813/
/dev/sde: http://fpaste.org/45632/36154613/

(sorry for the top post, worried this would have gotten lost below)
[You could/should have just trimmed the material below.]

Anyways, excellent report.

According to the mdadm -E data, you should only need to perform a forced
assembly, like so:

mdadm --stop /dev/md1
mdadm --assemble --force /dev/md1 /dev/sd[bcde]2

Your drives all have the same event counts, suggesting that they were
all dieing within milliseconds of each other.  One of them lived long
enough to record the another's failure, but not to bump the event count.
 The dead machine almost certainly suffered a catastrophic hardware failure.

Presuming the forced assembly works, you should plan on tossing these
drives after you get your data... they have dangerously high relocation
counts and cannot be trusted.  (Fairly typical for consumer drives
approaching 30k hours.)

HTH,

Phil
Ya, I have no plan at all to use these drives or the server they came
from anymore. In fact, they've already been replaced. :)

I tried the --assemble --force (and --assemble --force --run) without
success. It fails saying that sde2 thinks sdb2 has failed, leaving two
dead members. If I try to start with just sd[bcd], it says that it has
two drives and one spare, so still refuses to start.

Any other options/ideas? I'm not in any rush, so I am happy to test things.

Cheers!

digimer

-- 
Digimer
Papers and Projects: https://alteeve.ca/w/
What if the cure for cancer is trapped in the mind of a person without
access to education?
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