growfs - Using on mounten FS - planned?- TWE probs..
Julian Elischer
julian at elischer.org
Wed Oct 27 15:12:22 PDT 2004
Andreas Braukmann wrote:
> --On Mittwoch, 27. Oktober 2004 13:00 Uhr -0700 Julian Elischer
> <julian at elischer.org> wrote:
>
>> Andreas Braukmann wrote:
>>
>>>
>>> I'll have to test this on gvinum / UFS2 during the next few weeks,
>>> because of a 2 TByte storage server running 5.3 has to go in pro-
>>> duction in early December.
>>
>>
>>
>> what storage are you using?
>
>
> twe(4) and a bunch of big S-ATA drives in RAID-5 configuration.
> Nothing really impressive nowadays.
I'm having infrequent corruption problems with 3ware 7500-8 cards .
do you check your data?
We store GB sized files and we checksum them and we check the checksums
over time....
Over 7 servers we see a couple of file drop chunks of data over a weeks
worth
of writing.. either 128KB chunks are not written or the chunk
corresponding to
1 drive's part of a 128KB write never happens. Some of them are
defintly firmware
problems but some of them might be driver or OS problems too (or firmware).
The data goes missing immediatly on write.. not through degradation, so
we immediatly resend the data and rewrite the file.
This is with 4.8 + the driver from their website.. and the driver from 4.10
>
>
>
>
> -Andreas
>
>
>
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