ocfs2/dlm vs fs/dlm

[renzhengeek]

n2:~/951724 # lsmod|grep ocfs2
ocfs2_dlmfs            27744  1 
ocfs2_stack_o2cb       13278  1 
ocfs2_dlm             238450  1 ocfs2_stack_o2cb
ocfs2                1157533  1 
jbd2                   95751  1 ocfs2
ocfs2_nodemanager     233702  12 ocfs2_dlmfs,ocfs2_stack_o2cb,ocfs2_dlm,ocfs2
quota_tree             18378  1 ocfs2
ocfs2_stack_user       13955  1 
ocfs2_stackglue        17248  4 ocfs2_dlmfs,ocfs2_stack_o2cb,ocfs2,ocfs2_stack_user
dlm                   168291  9 ocfs2_stack_user
configfs               35817  3 ocfs2_nodemanager,dlm
n2:~/951724 # lsmod|grep dlm
ocfs2_dlmfs            27744  1 
ocfs2_dlm             238450  1 ocfs2_stack_o2cb
ocfs2_nodemanager     233702  12 ocfs2_dlmfs,ocfs2_stack_o2cb,ocfs2_dlm,ocfs2
ocfs2_stackglue        17248  4 ocfs2_dlmfs,ocfs2_stack_o2cb,ocfs2,ocfs2_stack_user
dlm                   168291  9 ocfs2_stack_user
sctp                  217655  3 dlm
configfs               35817  3 ocfs2_nodemanager,dlm

[renzhengeek]

n2:~/951724 # rpm -qa |grep o2cb
ocfs2-tools-o2cb-1.8.2-0.15.5
n2:~/951724 # rpm -ql ocfs2-tools-o2cb-1.8.2-0.15.5
/etc/init.d/o2cb
/etc/init.d/ocfs2
/sbin/o2cb
/sbin/o2cb_ctl
/sbin/rco2cb
/sbin/rcocfs2
/usr/share/doc/packages/ocfs2-tools-o2cb
/usr/share/doc/packages/ocfs2-tools-o2cb/README.O2CB
/usr/share/man/man7/o2cb.7.gz
/usr/share/man/man8/o2cb.8.gz
/usr/share/man/man8/o2cb_ctl.8.gz
/var/adm/fillup-templates/sysconfig.o2cb

[renzhengeek]

    echo -n "Registering O2CB cluster \"${CLUSTER}\": "
    OUTPUT=$(o2cb register-cluster "${CLUSTER}" 2>&1)

/sbin/o2cb

[renzhengeek]

o2cb_ctl/o2cbtool.c:99:     .o_name = "register-cluster",
o2cb_ctl/o2cbtool.c:105:        .o_name = "unregister-cluster",
o2cb_ctl/op_register.c:277: * register-cluster <clustername>
o2cb_ctl/op_register.c:374: * unregister-cluster <clustername>

[renzhengeek]

o2cb register-cluster

o2cbtool_register_cluster
 o2cbtool_init_cluster_stack
   o2cb_init
     configfs_init
 register_cluster
  register_nodes
    o2cb_set_node_attribute
 ...