Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id F1C90650094 for ; Mon, 8 Sep 2008 11:24:30 -0300 (ADT) Received: from postgresql.org ([200.46.204.86]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 31412-05 for ; Mon, 8 Sep 2008 11:24:28 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from nf-out-0910.google.com (nf-out-0910.google.com [64.233.182.185]) by postgresql.org (Postfix) with ESMTP id 340EA650080 for ; Mon, 8 Sep 2008 11:24:27 -0300 (ADT) Received: by nf-out-0910.google.com with SMTP id c7so428038nfi.23 for ; Mon, 08 Sep 2008 07:24:25 -0700 (PDT) Received: by 10.210.128.5 with SMTP id a5mr18865794ebd.38.1220883415083; Mon, 08 Sep 2008 07:16:55 -0700 (PDT) Received: from oxford.xeocode.com.enterprisedb.com ( [82.16.16.210]) by mx.google.com with ESMTPS id g9sm8065402gvc.0.2008.09.08.07.16.53 (version=TLSv1/SSLv3 cipher=RC4-MD5); Mon, 08 Sep 2008 07:16:53 -0700 (PDT) To: "Nikolas Everett" Cc: "Bruce Momjian" , pgsql-performance@postgresql.org Subject: Re: SAN and full_page_writes In-Reply-To: (Nikolas Everett's message of "Mon\, 8 Sep 2008 10\:02\:27 -0400") User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.1 (gnu/linux) X-Draft-From: ("nnimap+imap.gmail.com:PG" 1989) References: <200809061946.m86JkeS01341@momjian.us> From: Gregory Stark Organization: EnterpriseDB Date: Mon, 08 Sep 2008 15:16:51 +0100 Message-ID: <87myii4t9o.fsf@oxford.xeocode.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0 tagged_above=0 required=5 tests=none X-Spam-Level: X-Archive-Number: 200809/84 X-Sequence-Number: 31397 "Nikolas Everett" writes: > Thanks for pointing that out Bruce. > > NetApp has a 6 page PDF about NetApp and databases. On page 4: Skimming through this I think all 6 pages are critical. The sentence you quote out of context pertains specifically to the NAS internal organization. The previous pages discuss limitations of OSes, filesystems and especially NFS clients which you may have to be concerned with as well. -- Gregory Stark EnterpriseDB http://www.enterprisedb.com Ask me about EnterpriseDB's Slony Replication support!