From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick Mansfield Subject: Re: [PATCH] [RFC] persistent readable names Date: Thu, 6 Oct 2005 08:54:31 -0700 Message-ID: <20051006155431.GA9285@us.ibm.com> References: <4343DFDC.2020701@redhat.com> <20051005150923.GC6195@free.fr> <20051005180721.GA22387@us.ibm.com> <1128547659.6140.40.camel@zezette> <20051005223824.GA27219@us.ibm.com> <4344CD38.2030004@redhat.com> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <4344CD38.2030004@redhat.com> 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 Hi Patrick :) On Thu, Oct 06, 2005 at 08:07:36AM +0100, Patrick Caulfield wrote: > Patrick Mansfield wrote: > > > Here is some /dev, lsscsi and scsi_id output on a SLES9 system (rpm > > udev-021-36.55). by-path is basically pci and scsi bus_id's; by-id is > > basically scsi_id plus partition output. > > > Those are the names I'm trying to free people from. > > OK, multipath1 - multipath5000 aren't exactly friendly (but how else are you > going to name 5000 disks - there aren't that many Simpsons characters!) but > they're are a /lot/ easier to deal with than those I can see there. But we should not have a dm only solution. For that many disks, I don't see how it helps much, you must still deal with the specific id's at some level. I was thinking more about nice names for a few disks, or splitting disks into groups with a common prefix (and then still keep the long id portion). Enumerating names in shared/cluster setups probably makes things worse, though you could try to share or copy the file that maps wwid to the enumeration, the same thing for a udev solution. -- Patrick Mansfield