[root@node1 ~]# mkfs.gfs2 -t cluster:gfs -p lock_dlm -j 2 /dev/sdb1
※ -j 부분은 저널링넘버이다. 이 숫자에 따라 공유할 수 있는 노드 수가 결정된다. 2이면 2대의 클러스터가 마운트 가능

This will destroy any data on /dev/sdb1.
  It appears to contain a LVM2_member raid.

Are you sure you want to proceed? [y/n] y



Device:                    /dev/sdb1
Blocksize:                 4096
Device Size                1.00 GB (260857 blocks)
Filesystem Size:           1.00 GB (260856 blocks)
Journals:                  2
Resource Groups:           4
Locking Protocol:          "lock_dlm"
Lock Table:                "cluster:gfs"
UUID:                      1FA41F1A-600E-B18A-92A7-E562B09B598C

[root@node1 ~]#



아래와 같은 문제 발생
[root@node1 ~]# mount -t gfs2 /dev/sdb1 /GFS
/sbin/mount.gfs2: fs is for a different cluster
/sbin/mount.gfs2: error mounting lockproto lock_dlm
[root@node1 ~]#


검색해 보니....
http://strawman.egloos.com/1132244


[root@node1 ~]# gfs_tool sb /dev/sdb1 table
current lock table name = "cluster:gfs"
[root@node1 ~]# cman_tool status
Version: 6.1.0
Config Version: 11
Cluster Name: RHCS
Cluster Id: 1161
Cluster Member: Yes
Cluster Generation: 480
Membership state: Cluster-Member
Nodes: 1
Expected votes: 1
Total votes: 1
Quorum: 1  
Active subsystems: 8
Flags: 2node Dirty
Ports Bound: 0 177  
Node name: node2
Node ID: 2
Multicast addresses: 239.192.4.141
Node addresses: 10.0.0.200
[root@node1 ~]#


[root@node1 ~]# mkfs.gfs2 -t RHCS:gfs -p lock_dlm -j 2 /dev/sdb1
[root@node1 ~]# mount -t gfs2 /dev/sdb1 /GFS

마운트 성공~
[root@node1 ~]# mount
/dev/hda3 on / type ext3 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/hdb1 on /home type ext3 (rw)
/dev/hda6 on /tmp type ext3 (rw)
/dev/hda5 on /var/crash type ext3 (rw)
/dev/hda1 on /boot type ext3 (rw)
tmpfs on /dev/shm type tmpfs (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
none on /sys/kernel/config type configfs (rw)
/dev/sda1 on /GFS type gfs2 (rw,hostdata=jid=0:id=327681:first=1)
[root@node1 ~]#


다른 파일시스템에 비해 파티션에 아무 데이터도 저장하지 않았는데도 기본 차지하는 용량이 259M 가량으로 제법 된다.
[root@node1 GFS]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/hda3             4.4G  4.2G   17M 100% /
/dev/hdb1             9.9G  7.5G  2.0G  80% /home
/dev/hda6             487M   37M  425M   8% /tmp
/dev/hda5             2.9G   69M  2.7G   3% /var/crash
/dev/hda1              99M   28M   67M  30% /boot
tmpfs                 250M     0  250M   0% /dev/shm
/dev/sda1            1019M  259M  761M  26% /GFS
[root@node1 GFS]#