Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1Tic2p-0006fp-17 for pgsql-performance@arkaria.postgresql.org; Wed, 12 Dec 2012 02:27:35 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.72) (envelope-from ) id 1Tic2o-000386-4E for pgsql-performance@arkaria.postgresql.org; Wed, 12 Dec 2012 02:27:34 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1Tic2n-00037x-4Q for pgsql-performance@postgresql.org; Wed, 12 Dec 2012 02:27:33 +0000 Received: from server13-scl.nuevasync.com ([64.13.138.208] helo=mail.nuevasync.com) by magus.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1Tic2k-0004LC-Lc for pgsql-performance@postgresql.org; Wed, 12 Dec 2012 02:27:32 +0000 Received: from [192.168.65.253] (unknown [69.51.127.178]) by mail.nuevasync.com (Postfix) with ESMTP id F0895458006 for ; Tue, 11 Dec 2012 19:27:27 -0700 (MST) Message-ID: <50C7EB65.8020806@boreham.org> Date: Tue, 11 Dec 2012 19:26:45 -0700 From: David Boreham User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/20121026 Thunderbird/16.0.2 MIME-Version: 1.0 To: pgsql-performance@postgresql.org Subject: Re: Do I have a hardware or a software problem? References: <8F7661E7-D6D4-4334-8C6A-A8B6C56A2C3F@autouncle.com> <50C7351C.30407@2ndQuadrant.com> <4507A68A-3CD5-4283-AFA5-1C0593427E14@autouncle.com> <67FBF3AF-5C6A-45D4-9206-7257C8C01C5E@gmail.com> <50C7D7D2.4070605@2ndQuadrant.com> <2BCB6843-1396-42C9-A5BF-21C7C978FF4B@gmail.com> <50C7DDDE.1000000@2ndQuadrant.com> <3ADBD9A3-966F-40E8-AF78-0F2093D79BEE@gmail.com> <50C7E598.2070902@2ndQuadrant.com> <8A08ED7E-CF78-4F40-ACF1-1C87CEBBD00A@gmail.com> <50C7E8C5.9050300@boreham.org> <0D2E3F80-D94B-43DA-88E3-DA036FEA2241@gmail.com> In-Reply-To: <0D2E3F80-D94B-43DA-88E3-DA036FEA2241@gmail.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Pg-Spam-Score: -1.9 (-) List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-performance Precedence: bulk Sender: pgsql-performance-owner@postgresql.org On 12/11/2012 7:20 PM, Evgeny Shishkin wrote: > Oh, there is no 100% safe system. In this case we're discussing specifically "safety in the event of power loss shortly after the drive indicates to the controller that it has committed a write operation". Some drives do provide 100% safety against this event, and they don't cost much more than those that don't. -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance