From: Tom Lane <tgl@sss.pgh.pa.us>
To: James Mansion <james@mansionfamily.plus.com>
Cc: Bruce Momjian <bruce@momjian.us>
Cc: Joshua D. Drake <jd@commandprompt.com>
Cc: mark@mark.mielke.cc, "Andreas Kostyrka" <andreas@kostyrka.org>
Cc: jason@ohloh.net, "Geoff Tolley" <geoff@polimetrix.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: SCSI vs SATA
Date: Thu, 05 Apr 2007 01:32:26 -0400
Message-ID: <19221.1175751146@sss.pgh.pa.us> (raw)
In-Reply-To: <HCEPKPMCAJLDGJIBCLGHMEMGHGAA.james@mansionfamily.plus.com>
References: <HCEPKPMCAJLDGJIBCLGHMEMGHGAA.james@mansionfamily.plus.com>
"James Mansion" <james@mansionfamily.plus.com> writes:
>> Right --- the point is not the interface, but whether the drive is built
>> for reliability or to hit a low price point.
> Personally I take the marketing mublings about the enterprise drives
> with a pinch of salt. The low-price drives HAVE TO be reliable too,
> because a non-negligible failure rate will result in returns processing
> costs that destroy a very thin margin.
Reliability is relative. Server-grade drives are built to be beat upon
24x7x365 for the length of their warranty period. Consumer-grade drives
are built to be beat upon a few hours a day, a few days a week, for the
length of their warranty period. Even if the warranties mention the
same number of years, there is a huge difference here.
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, james@mansionfamily.plus.com, bruce@momjian.us, jd@commandprompt.com, andreas@kostyrka.org, geoff@polimetrix.com
Subject: Re: SCSI vs SATA
In-Reply-To: <19221.1175751146@sss.pgh.pa.us>
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