Received: from maia.hub.org (maia-5.hub.org [200.46.204.29]) by mail.postgresql.org (Postfix) with ESMTP id BED7013380BD for ; Sat, 18 Sep 2010 04:50:55 -0300 (ADT) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.29]) (amavisd-maia, port 10024) with ESMTP id 45961-05 for ; Sat, 18 Sep 2010 07:50:49 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.17.10]) by mail.postgresql.org (Postfix) with ESMTP id 23B961337BD0 for ; Sat, 18 Sep 2010 04:50:48 -0300 (ADT) Received: from [192.168.1.6] (static-71-179-240-8.bltmmd.fios.verizon.net [71.179.240.8]) by mrelayeu.kundenserver.de (node=mreu0) with ESMTP (Nemesis) id 0LaYbD-1OYUHK2hCh-00mI4q; Sat, 18 Sep 2010 09:50:46 +0200 Message-ID: <4C946F54.6000408@2ndquadrant.com> Date: Sat, 18 Sep 2010 03:50:44 -0400 From: Greg Smith User-Agent: Thunderbird 2.0.0.24 (X11/20100317) MIME-Version: 1.0 To: "pgsql-performance@postgresql.org" Subject: 3ware trivia overload Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Provags-ID: V02:K0:GnF+6c4MtSiRKgNbOWfd0mKc81c/G6tOI1K3zOWP2MK 5n2NjEfC4D0ZPXq0ib3jhhdjful27xezRvMu4v0pSh7opse7BR 9/Tz8K8c2YZjuNAbKEozBhX5pl/qmkB9c/mOa0cPS2spRsKUbV ssA5DltcUJTgxzfvKIjgc61RLPqn3S2GIoaTwQyx5Mjtgnw8bW ARfoGfnDzUL8CiK3/MPPmbI6lEFbzw6+nBnjbY32NQ= X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-1.9 tagged_above=-10 required=5 tests=BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001 X-Spam-Level: X-Archive-Number: 201009/111 X-Sequence-Number: 40314 Since I've never stumbled on this until now, and I spend all day looking at this sort of thing, I'm guessing many of you haven't seen the following collection of 3ware controller trivia either: http://makarevitch.org/rant/3ware/ All moving toward obsolete with 3ware being a part of LSI now I suspect, but a great historical piece. It puts some numbers on the general anecdotal observations that the older 9500 series of cards from 3ware were terrible in several common situations, and that the 9600 and later cards aren't so bad. I've never seen so much of the trivia related to using these particular cards assembled into one well referenced place before. Probably interesting to those interested in general Linux disk performance issues even if you don't care about this particular brand of card. -- Greg Smith, 2ndQuadrant US greg@2ndQuadrant.com Baltimore, MD PostgreSQL Training, Services and Support www.2ndQuadrant.us Author, "PostgreSQL 9.0 High Performance" Pre-ordering at: https://www.packtpub.com/postgresql-9-0-high-performance/book