I've already posted this to freebsd-fs@ but still have no idea as to why
the below has happened.
On 10/30/12 09:08, Paul Wootton wrote:
Hi,
I have had lots of bad luck with SATA drives and have had them fail on
me far too often. Started with a 3 drive RAIDZ and lost 2 drives at
the same time. Upgraded to a 6 drive RAIDZ and lost 2 drives with in
hours of each other and finally had a 9 drive RAIDZ (1 parity) and
lost another 2 drives (as luck would happen, this time I had a 90%
backup on another machine so did not loose everything). I finally
decided that I should switch to a RAIDZ2 (my current setup).
Now I have lost 1 drive and the pack is showing as faulted. I have
tried exporting and reimporting, but that did not help either.
Is this normal? Has any one got any ideas as to what has happened and
why?
The fault this time might be cabling so I might not have lost the
data, but my understanding was that with RAIDZ-2, you could loose 2
drives and still have a working pack.
I do know the fault could also be the power supply, controller etc. I
can take care of all the hardware.
The issue I have is, I have a 9 RAIDZ-2 pack with only 1 disk showing
as offline and the pack is showing as faulted.
If the power supply was bouncing and a drive was giving bad data, I
would expect ZFS to report that 2 drives were faulted (1 offline and 1
corrupt)
Is there a way with ZDB that I can see why the pool is showing as
faulted? Can it tell me which drives it thinks are bad, or has bad data?
I do still have the 90% backup of the pool and nothing has really
changed since that backup, so if someone wants me to try something and
it blows the pack away, it's not the end of the world.
Cheers
Paul
pool: storage
state: FAULTED
status: One or more devices could not be opened. There are insufficient
replicas for the pool to continue functioning.
action: Attach the missing device and online it using 'zpool online'.
see: http://illumos.org/msg/ZFS-8000-3C
scan: resilvered 30K in 0h0m with 0 errors on Sun Oct 14 12:52:45 2012
config:
NAME STATE READ WRITE CKSUM
storage FAULTED 0 0 1
raidz2-0 FAULTED 0 0 6
ada0 ONLINE 0 0 0
ada1 ONLINE 0 0 0
ada2 ONLINE 0 0 0
17777811927559723424 UNAVAIL 0 0 0 was
/dev/ada3
ada4 ONLINE 0 0 0
ada5 ONLINE 0 0 0
ada6 ONLINE 0 0 0
ada7 ONLINE 0 0 0
ada8 ONLINE 0 0 0
ada10p4 ONLINE 0 0 0
root@filekeeper:/storage # zpool export storage
root@filekeeper:/storage # zpool import storage
cannot import 'storage': I/O error
Destroy and re-create the pool from
a backup source.
root@filekeeper:/usr/home/paul # uname -a
FreeBSD filekeeper.caspersworld.co.uk 10.0-CURRENT FreeBSD
10.0-CURRENT #0 r240967: Thu Sep 27 08:01:24 UTC 2012
r...@filekeeper.caspersworld.co.uk:/usr/obj/usr/src/sys/GENERIC amd64
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