Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751145AbWEHVuX (ORCPT ); Mon, 8 May 2006 17:50:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751162AbWEHVuX (ORCPT ); Mon, 8 May 2006 17:50:23 -0400 Received: from gate.in-addr.de ([212.8.193.158]:11431 "EHLO mx.in-addr.de") by vger.kernel.org with ESMTP id S1751145AbWEHVuW (ORCPT ); Mon, 8 May 2006 17:50:22 -0400 Date: Mon, 8 May 2006 23:51:36 +0200 From: Lars Marowsky-Bree To: Circuitsoft Development , Linux Kernel Mailing List Subject: Re: Fwd: Fwd: Extended Volume Manager API Message-ID: <20060508215136.GQ5856@marowsky-bree.de> References: <64b292120604302226i377f1c37qd33db36693ea1871@mail.gmail.com> <200605010702.k4172Q5H006348@turing-police.cc.vt.edu> <64b292120605010759h4d9c74d7s717d125018ab95d3@mail.gmail.com> <64b292120605011310n59ac3bdew2508bfa8b923adb3@mail.gmail.com> <64b292120605062123gdb302d2g201fa59e93bc6a25@mail.gmail.com> <64b292120605081417y1684cba4kfb85ce39c14df0f7@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <64b292120605081417y1684cba4kfb85ce39c14df0f7@mail.gmail.com> X-Ctuhulu: HASTUR User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1143 Lines: 28 On 2006-05-08T16:17:07, Circuitsoft Development wrote: > I'm not. They also need to get permission from the network before they > write to the disk, and they're not going to get permission without > hearing back from everybody. Besides, since the same network is used > to connect to the disks as is used to connect the computers to each > other, how would it be able to access the disks without being able to > access other computers which also connect to the disks? You really should read up about split-brain scenarios, quorum, IO fencing, cluster membership algorithms and the amazing variety of different types of crashes. Sincerely, Lars Marowsky-Br?e -- High Availability & Clustering SUSE Labs, Research and Development SUSE LINUX Products GmbH - A Novell Business -- Charles Darwin "Ignorance more frequently begets confidence than does knowledge" - 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/