Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id 1BFB264FCD2 for ; Thu, 11 Sep 2008 19:42:02 -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 35478-07 for ; Thu, 11 Sep 2008 19:41:59 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from skynet.simkin.ca (skynet.simkin.ca [72.51.27.117]) by postgresql.org (Postfix) with ESMTP id 3EBC264FCBD for ; Thu, 11 Sep 2008 19:41:59 -0300 (ADT) Received: from charon.medialogik.com (unknown [10.10.2.229]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by skynet.simkin.ca (Postfix) with ESMTP id 8B81D4A46 for ; Thu, 11 Sep 2008 15:41:56 -0700 (PDT) From: Alan Hodgson Organization: Simkin Network Consulting To: pgsql-performance@postgresql.org Subject: Re: Effects of setting linux block device readahead size Date: Thu, 11 Sep 2008 15:41:55 -0700 User-Agent: KMail/1.9.9 References: <70c01d1d0809092353r4ae687a3ycf3d99d43a5680cf@mail.gmail.com> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200809111541.55525@hal.medialogik.com> 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: 200809/151 X-Sequence-Number: 31464 On Thursday 11 September 2008, david@lang.hm wrote: > while I agree with you in theory, in practice I've seen multiple > partitions cause far more problems than they have prevented (due to the > partitions ending up not being large enough and having to be resized > after they fill up, etc) so I tend to go in the direction of a few large > partitions. I used to feel this way until LVM became usable. LVM plus online resizable filesystems really makes multiple partitions manageable. -- Alan