Re: 3ware vs Areca - Mailing list pgsql-performance

From Scott Marlowe
Subject Re: 3ware vs Areca
Date
Msg-id dcc563d10807110719qfd41e2ej6bd6b89654f4c995@mail.gmail.com
Whole thread Raw
In response to 3ware vs Areca  (Jeff <threshar@torgo.978.org>)
List pgsql-performance
On Fri, Jul 11, 2008 at 7:26 AM, Jeff <threshar@torgo.978.org> wrote:
> I've got a couple boxes with some 3ware 9550 controllers, and I'm less than
> pleased with performance on them.. Sequential access is nice, but start
> seeking around and you kick it in the gut.  (I've found posts on the
> internets about others having similar issues).  My last box with a 3ware I
> simply had it in jbod mode and used sw raid and it smoked the hw.
> Anyway, anybody have experience in 3ware vs Areca - I've heard plenty of
> good anecdotal things that Areca is much better, just wondering if anybody
> here has firsthand experience.    It'll be plugged into about 8 10k rpm sata
> disks.

What RAID level are you using?  How much cache do you have?  Write
back / battery backed? What OS and version?

Everything I've heard sys they're both fast performers.

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