Re: [PERFORM] Arguments Pro/Contra Software Raid

From: "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com>
To: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
Cc: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, Vivek Khera <vivek(at)khera(dot)org>, "Pgsql-Performance ((E-mail))" <pgsql-performance(at)postgresql(dot)org>, PostgreSQL General <pgsql-general(at)postgresql(dot)org>
Subject: Re: [PERFORM] Arguments Pro/Contra Software Raid
Date: 2006-05-11 23:01:38
Message-ID: 20060511230138.GB99570@pervasive.com
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On Thu, May 11, 2006 at 03:38:31PM -0700, Joshua D. Drake wrote:
>
> >>You want an in-depth comparison of how a server disk drive is internally
> >>better than a desktop drive:
> >>
> >> http://www.seagate.com/content/docs/pdf/whitepaper/D2c_More_than_Interface_ATA_vs_SCSI_042003.pdf
> >
> >BTW, someone (Western Digital?) is now offering SATA drives that carry
> >the same MTBF/warranty/what-not as their SCSI drives. I can't remember
> >if they actually claim that it's the same mechanisms just with a
> >different controller on the drive...
>
> Well western digital and Seagate both carry 5 year warranties. Seagate I
> believe does on almost all of there products. WD you have to pick the
> right drive.

I know that someone recently made a big PR push about how you could get
'server reliability' in some of their SATA drives, but maybe now
everyone's starting to do it. I suspect the premium you can charge for
it offsets the costs, provided that you switch all your production over
rather than trying to segregate production lines.
--
Jim C. Nasby, Sr. Engineering Consultant jnasby(at)pervasive(dot)com
Pervasive Software http://pervasive.com work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461

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