Re: Arguments Pro/Contra Software Raid - Mailing list pgsql-general

From Greg Stark
Subject Re: Arguments Pro/Contra Software Raid
Date
Msg-id 8764kexzin.fsf@stark.xeocode.com
Whole thread Raw
In response to Re: Arguments Pro/Contra Software Raid  (Douglas McNaught <doug@mcnaught.org>)
Responses Re: Arguments Pro/Contra Software Raid
List pgsql-general
Douglas McNaught <doug@mcnaught.org> writes:

> Vivek Khera <vivek@khera.org> writes:
>
> > On May 9, 2006, at 11:51 AM, Joshua D. Drake wrote:
> >
> >> And dollar for dollar, SCSI will NOT be faster nor have the hard
> >> drive capacity that you will get with SATA.
> >
> > Does this hold true still under heavy concurrent-write loads?  I'm
> > preparing yet another big DB server and if SATA is a better option,
> > I'm all (elephant) ears.
>
> Correct me if I'm wrong, but I've never heard of a 15kRPM SATA drive.

Well, dollar for dollar you would get the best performance from slower drives
anyways since it would give you more spindles. 15kRPM drives are *expensive*.

--
greg

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