Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261475AbVEaK2w (ORCPT ); Tue, 31 May 2005 06:28:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261679AbVEaK2w (ORCPT ); Tue, 31 May 2005 06:28:52 -0400 Received: from gate.in-addr.de ([212.8.193.158]:31190 "EHLO mx.in-addr.de") by vger.kernel.org with ESMTP id S261475AbVEaK2s (ORCPT ); Tue, 31 May 2005 06:28:48 -0400 Date: Tue, 31 May 2005 12:26:24 +0200 From: Lars Marowsky-Bree To: Robert Wipfel , davidnicol@gmail.com, phillips@redhat.com Cc: linux-ha@lists.linux-ha.org, linux-cluster@redhat.com, linux-fsdevel@vger.kernel.org, dcl_discussion@lists.osdl.org, cgl_discussion@lists.osdl.org, linux-kernel@vger.kernel.org, ssic-linux-devel@lists.sourceforge.net, clusters_sig@lists.osdl.org Subject: Re: [Clusters_sig] Re: [ANNOUNCE] Linux Cluster Summit 2005 Message-ID: <20050531102624.GT17565@marowsky-bree.de> References: Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Ctuhulu: HASTUR User-Agent: Mutt/1.5.6i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1361 Lines: 32 On 2005-05-21T09:29:01, Robert Wipfel wrote: > outside looking in, is web services an! d grid. Returning to the > reality of many vendor's enterprise* business, the suitespot for h/a > clusters still seems to be somewhere around ~8 dual-CPU nodes with > many customers deploying multiple similar clusters. Nodes are never in > multiple clusters at once, rather, individual nodes are members of a > cluster and that cluster might be a member of a cluster of clusters. A single node must be big enough to support sane load balancing; ie, big enough to run at least one (or more) "whole" resource entities / jobs. That is the breaking point after which it is more sensible to deploy more nodes - with looser coupling - than making a single node / SSI component larger, because decoupled operation means less complexity for fault isolation. 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/