Thread (13 messages) 13 messages, 5 authors, 2013-03-13

Re: Help with two momentarily failed drives out of a 4x3TB Raid 5

From: Javier Marcet <hidden>
Date: 2013-03-11 19:41:35

On Mon, Mar 11, 2013 at 8:26 PM, Mathias Burén [off-list ref] wrote:
quoted
I have two disks still missing 30% of the long test but the two other
ones stopped due to errors:

http://bpaste.net/raw/83003/
197 Current_Pending_Sector  0x0032   200   200   000    Old_age
Always       -       18

http://bpaste.net/raw/83004/
197 Current_Pending_Sector  0x0032   200   200   000    Old_age
Always       -       1


I am gonna pass badblocks on them but this does not look good.

Could a faulty sata data cable cause those bad blocks? The disks are 8
months old so I hope I can get them replaced.
I see read failures on the SMART self tests, that warrants an RMA. So,
get that done. A faulty SATA cable would not do that, you'd rather see
CRC errors or other kernel log messages.
All right, tomorrow I will request an RMA.

One of the drives only shows one sector bad. I hope I can still get
some/most of my data.

I know that forcing a reassembly lets me mount the filesystem although
at certain point causes a kernel backtrace and I believe most data is
unreadable.

How should I proceed to be able to get most of the data? Will I have
to create a completely new array or can I somehow fix it adding new
disks?

Oh and thanks a lot for the help, I'm still a newbie with raids.


-- 
Javier Marcet [off-list ref]
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