Received: from maia.hub.org (unknown [200.46.204.183]) by mail.postgresql.org (Postfix) with ESMTP id 4372E632E99 for ; Tue, 9 Mar 2010 17:59:36 -0400 (AST) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 64390-04 for ; Tue, 9 Mar 2010 21:59:25 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from spinlock.commandprompt.com (host-215.commandprompt.net [207.173.203.215]) by mail.postgresql.org (Postfix) with ESMTP id AFE34632CF4 for ; Tue, 9 Mar 2010 17:59:25 -0400 (AST) Received: from localhost (localhost [127.0.0.1]) by spinlock.commandprompt.com (Postfix) with ESMTP id BDABE348037; Tue, 9 Mar 2010 13:59:23 -0800 (PST) Received: from spinlock.commandprompt.com ([127.0.0.1]) by localhost (spinlock.commandprompt.com.commandprompt.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id hoHzArl9Sj46; Tue, 9 Mar 2010 13:59:23 -0800 (PST) Received: from [192.168.1.100] (unknown [75.142.159.62]) by spinlock.commandprompt.com (Postfix) with ESMTPSA id 4C69434803F; Tue, 9 Mar 2010 13:59:23 -0800 (PST) Subject: Re: linux standard layout From: "Joshua D. Drake" Reply-To: jd@commandprompt.com To: Kenneth Marshall Cc: Scott Marlowe , Jan-Ivar Mellingen , Tom Lane , pgsql-admin@postgresql.org In-Reply-To: <20100309214330.GH19562@it.is.rice.edu> References: <4B95E162.7060806@djs-consulting.com> <3769.1268115316@sss.pgh.pa.us> <4B96AD1B.7070601@alreg.no> <1268168772.31596.147.camel@jd-desktop.unknown.charter.com> <1268170100.31596.173.camel@jd-desktop.unknown.charter.com> <20100309214330.GH19562@it.is.rice.edu> Content-Type: text/plain; charset="UTF-8" Organization: Command Prompt, Inc. Date: Tue, 09 Mar 2010 13:59:13 -0800 Message-ID: <1268171953.1806.2.camel@jd-desktop.unknown.charter.com> Mime-Version: 1.0 X-Mailer: Evolution 2.28.1 Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-2.599 tagged_above=-10 required=5 tests=BAYES_00=-2.599 X-Spam-Level: X-Archive-Number: 201003/73 X-Sequence-Number: 33872 On Tue, 2010-03-09 at 15:43 -0600, Kenneth Marshall wrote: > On Tue, Mar 09, 2010 at 01:28:20PM -0800, Joshua D. Drake wrote: > > On Tue, 2010-03-09 at 14:25 -0700, Scott Marlowe wrote: > > > On Tue, Mar 9, 2010 at 2:06 PM, Joshua D. Drake wrote: > > > > On Tue, 2010-03-09 at 13:35 -0700, Scott Marlowe wrote: > > > > > > > >> > In a nutshell, I am heartly recommending virtualization. > > > >> > > > >> In a nutshell, you are relying on luck that both heavy iron machines > > > >> can't lose power at the same time. Sure, it's a low possibility, but > > > >> it's still a real one. > > > >> > > > > > > > > Not luck. Percentage of risk. > > > > > > They're both ways of saying you're rolling the dice. And in every > > > situation we're rolling the dice, it's just a question of how many and > > > > Well my point was all about risk versus reward. For many, a 3% risk is > > more than appropriate. That isn't luck, it is a calculation of risk. > > > True, but in many cases the analysis of risk/reward is flawed by not > including the true cost of a protracted outage. Some of the second > order effects can be nasty if not included originally. I would also > recommend that the analysis and implementation be signed-off at the > highest levels -- that is where the head-hunting will start. I concur with that... Always have a CYA document. Joshua D. Drake > > Cheers, > Ken > -- PostgreSQL.org Major Contributor Command Prompt, Inc: http://www.commandprompt.com/ - 503.667.4564 Consulting, Training, Support, Custom Development, Engineering Respect is earned, not gained through arbitrary and repetitive use or Mr. or Sir.