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Re: SAS Raid10 vs SATA II Raid10 - many small reads and writes - Mailing list pgsql-general

From Scott Marlowe
Subject Re: SAS Raid10 vs SATA II Raid10 - many small reads and writes
Date
Msg-id dcc563d11003092332ye5bbafme1b7e67ef93886fd@mail.gmail.com
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In response to SAS Raid10 vs SATA II Raid10 - many small reads and writes  (Phillip Berry <pberry@stellaconcepts.com>)
Responses Re: SAS Raid10 vs SATA II Raid10 - many small reads and writes  (Phillip Berry <pberry@stellaconcepts.com>)
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On Tue, Mar 9, 2010 at 11:49 PM, Phillip Berry
<pberry@stellaconcepts.com> wrote:
> Hi Everyone,
>
> We're in the market for a new DB server to replace our current one (yes it's one of *those*
> questions) ;).
>
> It'll have quad core Xeons, 36GB RAM and some sort of Raid 10 configuration.
>
> Our provider is pushing us towards 6 x SATA II disks in a Raid 10 configuration or 4 x SAS disks in
> Raid 10 (budget constraints).

Are those your only two options?  No 6 SAS drives?  Are you looking at
7200rpm or 10krpm SATA?  15krpm or 10krpm SAS?  What RAID controller?
Battery backed Cache?  Software RAID?

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