From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joel Becker Subject: Re: Bug? Determining the holders of partitions shadowed by dm-multipath. Date: Tue, 10 Feb 2009 13:32:39 -0800 Message-ID: <20090210213239.GA30270@mail.oracle.com> References: <20090210004951.GA4341@mail.oracle.com> <16F7C86087BE0247B20562A9E6B07DC75BB5DAA6@excnysm95bagp.nysemail.nyenet> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <16F7C86087BE0247B20562A9E6B07DC75BB5DAA6@excnysm95bagp.nysemail.nyenet> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: device-mapper development List-Id: dm-devel.ids On Tue, Feb 10, 2009 at 09:49:58AM -0500, Romanowski, John (OFT) wrote: > my sles10sp2 at 2.6.16.60-0.29-default doesn't have the /sys/block/.../holders but > I've used major:minor device numbers from commands > dmsetup ls > and > dmsetup deps > to resolve such device relationships. > > A 'dmsetup ls' device number that isn't listed in 'dmsetup deps' device numbers is a top-level device. Example below: mproot-part1 (dev 253:3, a partition of mp device 253:2) isn't listed as a dependency of any device. Likewise each listed LVM volume isn't listed as a dependency of any device; example- rootvg-tmp 253:10 Sure, but a /dev/sda2 won't show up in dmsetup output anywhere. That's kind of my point. Joel -- Life's Little Instruction Book #198 "Feed a stranger's expired parking meter." Joel Becker Principal Software Developer Oracle E-mail: joel.becker@oracle.com Phone: (650) 506-8127