-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Domenico Viggiani wrote: > Hi, > what's the exact meaning of these messages: > > # multipath -v2 > remove: mpath9 (dup of mpath1) > mpath9: map in use > remove: mpath13 (dup of mpath2) > mpath13: map in use > > ? > If mpath9/13 already exist, why does multipath try to create mpath1/2? > > System (RH 4.5) is just rebooted, storage is EMC Clariion CX700. > LVM is in use. Looks like you have a problem with your bindings (/var/lib/mpath/bindings). This can happen if, for e.g. the /var tree is a separate file system. In this case, multipath devices are created by rc.sysinit before /var is mounted. Later on, if the wwid to mpath names in the bindings file are different from those that mpath auto-detected in rc.sysinit you end up with conflicts like this - multipath is trying to re-name the mpath devices according to the entries in the bindings file. If LVM has already activated volume groups on the devices this gives you the "map in use" errors you noted above. See this bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=320151 There are a couple of workarounds you can use: make /var part of the root file system, configure your bindings via /etc/multipath.conf instead (use device { /* ... */ wwid = } blocks), or copy the bindings file from the /var file system into a location named /var/lib/mpath/bindings on the root file system (although I would not recommend this last option as it can become confusing). Kind regards, Bryn. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFHD3RP6YSQoMYUY94RAhqMAKC33LKJBCK5R7RFhk8pkixTMzOB+gCfbE6y Nb2C5vqHipk9lVXyoudOOMI= =aUoK -----END PGP SIGNATURE----- -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
