From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: [PATCH] aacraid: Add module param to export disks as 'fixed' instead of 'removable' Date: Tue, 17 May 2011 15:35:44 -0400 Message-ID: <20110517193544.GA27336@infradead.org> References: <4DD2CE01.9090403@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from bombadil.infradead.org ([18.85.46.34]:39471 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932088Ab1EQTfq (ORCPT ); Tue, 17 May 2011 15:35:46 -0400 Content-Disposition: inline In-Reply-To: <4DD2CE01.9090403@suse.de> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Ankit Jain Cc: linux-scsi@vger.kernel.org, aacraid@adaptec.com, Hannes Reinecke On Wed, May 18, 2011 at 01:05:29AM +0530, Ankit Jain wrote: > aacraid: Add 'aac_export_fixed' module param to export disks as > 'fixed' instead of 'removable'. > > Adaptec controllers set the removable flag on devices to > allow for reconfiguration. The fear is that _not_ setting this > flag would inhibit the OS from detecting any device reconfiguration. The flag should not be set at all and just be removed. > This manifested itself in a bug where Paravirtualized NetWare > was not able to boot with more than one PHY disk attached to a Xen > VM. NetWare sees two removable disks (and not CD-ROM), which is > an unsupported configuration. Details can be found at - > https://bugzilla.novell.com/show_bug.cgi?id=667226 . But if you can't get aacraid fixed entirely the next best work around is to stop Xen from blindly copying flags to the guest disk.