I have a four node cluster with four storage nodes as well. I created 4 volume groups vg1,vg2,vg3,vg4 from the storage nodes and used mkfs.gfs2 to make a gfs2 filesystem. # mkfs.gfs2 -t c1:gfs1 -p lock_dlm -j 4 -r 2048 -J 128 /dev/vg1/lv0 I repeated the above for each volume group. I then mounted vg1 in to /mnt1 of one of the cluster nodes as follows: # mount -t gfs2 -o quota=off /dev/vg1/lv0 /mnt1 It succeeded in mounting. But, when I try to mount the next volume group, I get an error as follows: #mount -t gfs2 -o quota=off /dev/vg4/lv0 /mnt4 /sbin/mount.gfs2: lock_dlm_join: gfs_controld join error: -22 /sbin/mount.gfs2: error mounting lockproto lock_dlm What could be the reason behind it? Am I messing up something related to lock_dlm? Are my options to gfs2.mkfs right? Any help is appreciated. The following gfs modules were loaded: # lsmod | grep gfs gfs2 519988 2 lock_dlm configfs 62236 2 dlm Regards, John G ____________________________________________________________________________________ Need a vacation? Get great deals to amazing places on Yahoo! Travel. http://travel.yahoo.com/ -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster