From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264421AbTDKQUu (for ); Fri, 11 Apr 2003 12:20:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264419AbTDKQUt (for ); Fri, 11 Apr 2003 12:20:49 -0400 Received: from e6.ny.us.ibm.com ([32.97.182.106]:56723 "EHLO e6.ny.us.ibm.com") by vger.kernel.org with ESMTP id S264418AbTDKQUo convert rfc822-to-8bit (for ); Fri, 11 Apr 2003 12:20:44 -0400 Content-Type: text/plain; charset=US-ASCII From: Badari Pulavarty To: Joel Becker , Giuliano Pochini Subject: Re: [patch for playing] Patch to support 4000 disks and maintain Date: Fri, 11 Apr 2003 08:28:32 -0800 User-Agent: KMail/1.4.1 Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org References: <200304101339.49895.pbadari@us.ibm.com> <20030411154450.GW31739@ca-server1.us.oracle.com> In-Reply-To: <20030411154450.GW31739@ca-server1.us.oracle.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Message-Id: <200304110928.32978.pbadari@us.ibm.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Friday 11 April 2003 08:44 am, Joel Becker wrote: > On Fri, Apr 11, 2003 at 10:04:30AM +0200, Giuliano Pochini wrote: > > 4000 discs should be enough for anyone :) > > Are >16 partitions/disc possible ? > > > >16 partitions/disc is possible once you remove Linux's > > arbitrary limit. > 4000 disks is today. 8000 disks is next year at the latest. Well !! My patch does not have anything hardcoded to 4000. Depends on how many minor bits. But we have to put a hardlimit somewhere .. > Just imagine multipathing today's 4000 disks. Fortunately, the multipath solution Mike Anderson & Patrick Mansfield working on, colapses all the disks you see thro multiple paths into number of realdisks (4000). So you don't really need extra devices to support multipathing. Thanks, Badari