<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">please PLEASE UnSubscribe!!! --- On Tue, 7/20/10, Malahal Naineni <malahal@us.ibm.com> wrote: <blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"> From: Malahal Naineni <malahal@us.ibm.com> Subject: Re: [dm-devel] [BUG] multipath-tools: uuid has become meaningless To: dm-devel@redhat.com Date: Tuesday, July 20, 2010, 3:06 PM <div class="plainMail">Hannes Reinecke [<a ymailto="mailto:hare@suse.de" href="/mc/compose?to=hare@suse.de">hare@suse.de</a>] wrote: > Malahal Naineni wrote: > > This is where I was heading. I did some investigation and found that we > > really need to rename to wwid based names before we finally rename to > > the intended name. So we may actually have two passes just to rename > > (first to wwid based names and then to actual names). Also the current > > code doesn't do rename followed by reload even if it is needed. Someone > > sets friendly name and some other defaults that need reload like path > > grouping policy etc, we just rename! Probably a bug in itself. > You sure? I would rather rely on device-mapper uuids here. Hannes, I am not sure what you are referring to when you say, "You sure?" Are you saying if I am sure about this bug? If so, you can see yourself by swapping couple entries in the bindings file. As I said, you will notice this bug only when you enable 'user_friendly_names' in initrd in real life! > So we can use the known naming scheme for the uuid to regenerate the > wwid; with this we can identify/access the device and we should be able to > make do with just one pass. Say, you have "mpath0[uuid0]" and "mpath1[uuid1]" loaded currently. How can we rename mpath0 to mpath1 and vice-versa? It does require an intermediate step of renaming to something else, right? Thanks, Malahal. -- dm-devel mailing list <a ymailto="mailto:dm-devel@redhat.com" href="/mc/compose?to=dm-devel@redhat.com">dm-devel@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/dm-devel" target="_blank">https://www.redhat.com/mailman/listinfo/dm-devel</a> </div></blockquote></td></tr></table>