From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joel Becker Subject: Re: [patch for playing] Patch to support 4000 disks and maintain Date: Fri, 11 Apr 2003 16:18:43 -0700 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <20030411231842.GA4917@ca-server1.us.oracle.com> References: <200304101339.49895.pbadari@us.ibm.com> <20030411154450.GW31739@ca-server1.us.oracle.com> <200304110928.32978.pbadari@us.ibm.com> <20030411175736.GY31739@ca-server1.us.oracle.com> <20030411111232.A7756@beaverton.ibm.com> <20030411183543.GA31739@ca-server1.us.oracle.com> <20030411130407.A9302@beaverton.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from inet-mail2.oracle.com ([148.87.2.202]:30185 "EHLO inet-mail2.oracle.com") by vger.kernel.org with ESMTP id S262578AbTDKXIj (for ); Fri, 11 Apr 2003 19:08:39 -0400 Content-Disposition: inline In-Reply-To: <20030411130407.A9302@beaverton.ibm.com> List-Id: linux-scsi@vger.kernel.org To: Patrick Mansfield Cc: Badari Pulavarty , Giuliano Pochini , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, Mike Anderson On Fri, Apr 11, 2003 at 01:04:07PM -0700, Patrick Mansfield wrote: > If we had user scanning, and some sort of hotplug for targets coming and > going, those be used to add and remove (or just fail) paths (at least for > switch attached). That's the issue. We need notification of add and remove, so we don't find our multipathing hanging for 90s or more. That's a big deal to people, and it's a problem with the current md multipath. Joel -- "I'm living so far beyond my income that we may almost be said to be living apart." - e e cummings Joel Becker Senior Member of Technical Staff Oracle Corporation E-mail: joel.becker@oracle.com Phone: (650) 506-8127