ZFS-8000-8A: assistance needed
Ruslan Makhmatkhanov
rm at FreeBSD.org
Thu Sep 8 16:37:01 UTC 2016
Gary Palmer wrote on 09/08/2016 16:24:
> On Thu, Sep 08, 2016 at 03:35:50PM +0300, Ruslan Makhmatkhanov wrote:
>> Gary Palmer wrote on 09/08/2016 15:16:
>>> On Thu, Sep 08, 2016 at 02:46:04PM +0300, Ruslan Makhmatkhanov wrote:
>>>> Maurizio Vairani wrote on 09/08/2016 10:39:
>>>>> Hi Ruslan,
>>>>>
>>>>> Il 06/09/2016 22:00, Ruslan Makhmatkhanov ha scritto:
>>>>>> NAME STATE READ WRITE CKSUM
>>>>>> storage_ssd ONLINE 0 0 59.3K
>>>>>> mirror-0 ONLINE 0 0 0
>>>>>> gpt/drive-06 ONLINE 0 0 0
>>>>>> gpt/drive-07 ONLINE 0 0 9
>>>>>> mirror-1 ONLINE 0 0 119K
>>>>>> gpt/drive-08 ONLINE 0 0 119K
>>>>>> gpt/drive-09 ONLINE 0 0 119K
>>>>>> cache
>>>>>> mfid5 ONLINE 0 0 0
>>>>>> mfid6 ONLINE 0 0 0
>>>>>>
>>>
>>>> So, I'm interested how you detect that particular drives (with gpt
>>>> labels drive-07, drive-08 and drive-09) are failing?
>>>
>>> The CKSUM errors from the zpool status output. They are
>>> indicative of underlying problems. gpt/drive-07 has a low count
>>> so it's possibly not a major problem, but gpt/drive-08 and
>>> gpt/drive-09 both have a significant number. I find it a bit
>>> curious that both drives in the mirror have similar number of
>>> errors. Possibly indicating data pathing errors.
>>
>> Ah, ok, thanks. I wasn't able to find meaning of CKSUM field description
>> in zpool manpage, so didn't got it at the time. Not sure about data
>> pathing errors though.
>
> I mean something in the data path for both drives that is common
> to those two drives and not the others. If they're all attached to
> the same controller, maybe they're on a different SAS port or cable
> or something to the other drives.
>
> Regards,
>
> Gary
We'll check that. Thank you, Gary!
--
Regards,
Ruslan
T.O.S. Of Reality
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