Re: How to best use 32 15k.7 300GB drives? - Mailing list pgsql-performance

From Scott Marlowe
Subject Re: How to best use 32 15k.7 300GB drives?
Date
Msg-id AANLkTimR7w9=8_Vet8o3q9pkqgZurDyF3wb9P6AHhzA5@mail.gmail.com
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In response to Re: How to best use 32 15k.7 300GB drives?  (Scott Carey <scott@richrelevance.com>)
List pgsql-performance
On Fri, Jan 28, 2011 at 10:44 AM, Scott Carey <scott@richrelevance.com> wrote:
> If you go this route, I suggest two equally sized RAID 10's on different
> controllers fir index + data, with software raid-0 on top of that.  RAID 10
> will max out a controller after 6 to 10 drives, usually.  Using the OS RAID
> 0 to aggregate the throughput of two controllers works great.

I often go one step further and just create a bunch of RAID-1 pairs
and use OS level RAID-0 on top of that.  On the LSI8888 cards that was
by far the fastest setup I tested.

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