Re: RAID 6 Failure follow up

[Andrew Dunn <andrew.g.dunn@gmail.com>]

Thanks for your help, so far without smartctl installed I have had no
issues... but it has only been about 12 hours.

Could you send me your smatd.conf?

Vincent Schut wrote:
> Andrew Dunn wrote:
>> I am able to reproduce this smart error now. I have done it twice, so
>> maybe other things are causing this also.
>>
>> When I scanned the devices this morning with smartctl via webmin I lost
>> 8 of the 9 drives. They are howerver still in my /dev folder.
>>
>> Now I sent out my logs from the first failure last night, smartctl was
>> on the system... I dont know if ubuntu server's default smartd
>> configuration makes it do periodic scans because I didnt change
>> anything.
>>
>> I would hate to move back to 9.10 and see this problem again.
>>
>> Should I just not install smartmontools? This seems like a bad solution
>> because now I wont be able to check the drives in advance for failures.
>>
>> Have you installed LSI's linux drivers? Some people say this solves
>> their issue.
>>
>> From the logs sent out last night do you think it could be something
>> else?
>>
>> Thanks a ton,
>
> FWIW, I encountered the same issue, and seem to have found a viable
> workaround by accessing the SATA disks on that LSI backplane as scsi
> devices, e.g. by adding '-d scsi' to my smartctl/smartd.conf lines. No
> more errors in the logs, no more drives being kicked out.
> Though not as much info is available that way as when using de sata
> driver ('-d sat', or automatically), like temperature is unavailable,
> it does allow me to initiate the selftests and get their result, and
> to monitor generic smart status of the drives. Quite enough for me.
>
> YMMV, though.
>
> Vincent.
>>
>> Gabor Gombas wrote:
>>> On Mon, Nov 09, 2009 at 05:08:23AM -0500, Andrew Dunn wrote:
>>>
>>>  
>>>> does it momentarily offline the disks? like they re-appear in /dev
>>>> within moments? That would be similar behavior to what I am
>>>> experiencing, the disks drop from the array, but they are in /dev
>>>> by the
>>>> time I get a chance to see them.
>>>>     
>>> No, either the disks need to be physically removed and re-inserted, or
>>> the machine needs to be rebooted.
>>>
>>> Gabor
>>>
>>>   
>>
>
>

-- 
Andrew Dunn
http://agdunn.net