Kurt Schreiner wrote:
> On Thu, Jun 12, 2008 at 06:38:56AM +0200, Richard Elling wrote:
>
>> Vincent Fox wrote:
>>
>>> So I decided to test out failure modes of ZFS root mirrors.
>>>
>>> Installed on a V240 with nv90. Worked great.
>>>
>>> Pulled out disk1, then replaced it and attached again, resilvered, all good.
>>>
>>> Now I pull out disk0 to simulate failure there. OS up and running fine,
>>> but lots of error message about SYNC CACHE.
>>>
>>> Next I decided to init 0, and reinsert disk 0, and reboot. Uh oh!
>>>
>>>
>> This is actually very good. It means that ZFS recognizes that there
>> are two, out of sync mirrors and you booted from the oldest version.
>> What happens when you change the boot order?
>> -- richard
>>
> Hm, but the steps taken, as I read it, were:
>
> pull disk1
> replace
> *resilver*
> pull disk0
> ...
> So the 2 disks should be in sync (due to resilvering)? Or is there
> another step needed to get the disks in sync?
>
>
The amnesia occurred later:
Now I pull out disk0 to simulate failure there. OS up and running
fine, but lots of error message about SYNC CACHE.
Next I decided to init 0, and reinsert disk 0, and reboot. Uh oh!
-- richard
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