| From: | Henrik <henke(at)mac(dot)se> |
|---|---|
| To: | glynastill(at)yahoo(dot)co(dot)uk |
| Cc: | Greg Smith <gsmith(at)gregsmith(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Filesystem benchmarking for pg 8.3.3 server |
| Date: | 2008-08-11 12:08:01 |
| Message-ID: | D92E27B8-47BF-49FC-A917-947FB44858B9@mac.se |
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| Lists: | pgsql-performance |
11 aug 2008 kl. 12.35 skrev Glyn Astill:
>>>
>>>> It feels like there is something fishy going on.
>> Maybe the RAID 10
>>>> implementation on the PERC/6e is crap?
>>>
>
> It's possible. We had a bunch of perc/5i SAS raid cards in our
> servers that performed quite well in Raid 5 but were shite in Raid
> 10. I switched them out for Adaptec 5808s and saw a massive
> improvement in Raid 10.
I suspected that. Maybe I should just put the PERC/6 cards in JBOD
mode and then make a RAID10 with linux software raid MD?
>
>
>
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