Re: Replacing a failed disk in raidz2 zfs (and gpt)

On 02/03/11 10:38, Stefan Bethke wrote:
> Am 03.02.2011 um 07:11 schrieb Philip M. Gollucci:
> 
>> All filesystems are formatted with the current version.
>>
>> $ hd -v /dev/mfid3p1 | head
>> hd: /dev/mfid3p1: Input/output error
>>
>> $ hd -v /dev/gpt/disk3 | head
>> hd: /dev/gpt/disk3: Input/output error
> 
> Did you install a partition table on the disk (or otherwise opened it for writing) after you swapped it in?
> 
> I can't think of many reasons why you would get an I/O error if the controller is happy with the disk (as the later messages indicate), so I'm speculating that the provider feels it's device has gone; opening mfid3 for writing might trigger a proper GEOM retaste (dd if=/dev/null of=/dev/mfid3).

I kind of figured as such, but alas, I can't manage to do that either.

$ for d in mfid3 mfid3p1 mfid3p2 mfid3p3 gpt/disk3; do
 echo "$d:";
 sudo dd if=/dev/null of=/dev/$d;
done

mfid3:
dd: /dev/mfid3: Operation not permitted
mfid3p1:
0+0 records in
0+0 records out
0 bytes transferred in 0.000027 secs (0 bytes/sec)
mfid3p2:
dd: /dev/mfid3p2: Operation not permitted
mfid3p3:
0+0 records in
0+0 records out
0 bytes transferred in 0.000023 secs (0 bytes/sec)
gpt/disk3:
0+0 records in
0+0 records out
0 bytes transferred in 0.000024 secs (0 bytes/sec)


-- 
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Philip M. Gollucci (pgollucci_at_p6m7g8.com) c: 703.336.9354
VP Apache Infrastructure; Member, Apache Software Foundation
Committer,                        FreeBSD Foundation
Consultant,                       P6M7G8 Inc.
Sr. System Admin,                 Ridecharge Inc.

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