Received: from localhost (maia-3.hub.org [200.46.204.184]) by postgresql.org (Postfix) with ESMTP id 810BC9FBC3B for ; Thu, 5 Apr 2007 02:34:03 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.184]) (amavisd-maia, port 10024) with ESMTP id 27833-05 for ; Thu, 5 Apr 2007 02:33:54 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.4 Received: from sss.pgh.pa.us (sss.pgh.pa.us [66.207.139.130]) by postgresql.org (Postfix) with ESMTP id 984119FB844 for ; Thu, 5 Apr 2007 02:33:55 -0300 (ADT) Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.13.6/8.13.6) with ESMTP id l355WQ6E019222; Thu, 5 Apr 2007 01:32:26 -0400 (EDT) To: "James Mansion" cc: "Bruce Momjian" , "Joshua D. Drake" , mark@mark.mielke.cc, "Andreas Kostyrka" , jason@ohloh.net, "Geoff Tolley" , pgsql-performance@postgresql.org Subject: Re: SCSI vs SATA In-reply-to: References: Comments: In-reply-to "James Mansion" message dated "Thu, 05 Apr 2007 06:25:05 +0100" Date: Thu, 05 Apr 2007 01:32:26 -0400 Message-ID: <19221.1175751146@sss.pgh.pa.us> From: Tom Lane X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200704/95 X-Sequence-Number: 23972 "James Mansion" 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