Re: Degraded Raid6

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On 12/13/2012 1:51 PM, Roy Sigurd Karlsbakk wrote:
I run an 8-disk raid 6 on which sporadically 2 drives dropped out,
that I could just re-add when I zeroed the zuperblock beforehand.
Recently, upon re-adding those 2 drives (after the zero-superblock) a
third drive dropped out after 5-10 minutes of syncing. I then did a
zero-superblock on the third drive and tried to re-add it - which
failed.
...
10 8 113 - spare /dev/sdh1
11 8 1 - spare /dev/sda1
12 8 65 - spare /dev/sde1
If you had two drives failing, why didn't you let these spares take over the job?

Roy,

AFAIK, they were mistakenly labeled as spares, *after* the failure occurred. sdh, sda, and sde were original members of his array.

-EJ

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