Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754598AbYCPXI6 (ORCPT ); Sun, 16 Mar 2008 19:08:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752635AbYCPXIu (ORCPT ); Sun, 16 Mar 2008 19:08:50 -0400 Received: from khc.piap.pl ([195.187.100.11]:40675 "EHLO khc.piap.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752546AbYCPXIu (ORCPT ); Sun, 16 Mar 2008 19:08:50 -0400 To: Daniel Phillips Cc: David Newall , Willy Tarreau , Alan Cox , linux-kernel@vger.kernel.org Subject: Re: [ANNOUNCE] Ramback: faster than a speeding bullet References: <200803092346.17556.phillips@phunq.net> <47DCB347.2060706@davidnewall.com> <200803161538.06282.phillips@phunq.net> From: Krzysztof Halasa Date: Mon, 17 Mar 2008 00:08:48 +0100 In-Reply-To: <200803161538.06282.phillips@phunq.net> (Daniel Phillips's message of "Sun\, 16 Mar 2008 14\:38\:05 -0800") Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 822 Lines: 20 Daniel Phillips writes: >> It could, in a bit different location maybe, but it isn't a substitute >> for ordered writes. > > How so? Not sure if I understand the question correctly but obviously a pair (mirror) of servers running "dangerous" ramback would survive a crash of one machine and we could practically eliminate the probability of both (all) machines crashing simultaneously. However, there are cheaper ways to achieve similar performance and even better reliability - including those battery-backed (RAI)Disk controllers. -- Krzysztof Halasa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/