Mounting OCFS2 - duplicate multipath labels

[citsacras]

Hello,

I am running Oracle RAC 10g on RHEL4 with EMC storage managed by PowerPath.

The problem I am having is trying to mount an ocfs2 file system by label, important since device paths could change.

When I use the mount command I get an error:

# mount -t ocfs2 -o datavolume,nointr -L "ocfs2u01" /ocfs2/u01
mount: the label ocfs2u01 occurs on both /dev/sdw and /dev/sdax - not mounted
#

In my Google research I see some noise about editing /etc/fstab.order, but I can't find an example to get the format and I'm not sure this will work.

Has anyone experienced this before?

Thanks!

 

[Nothinman]

Are you sure you're going about that the right way? My experience with multipathing and OCFS is limited but I can't imagine how that would work. Something needs to manage those paths behind the scenes, in your case it would probably be PowerPath but you could probably also get by with dm-multipath.