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o2cb_ctl

o2cb_ctl(8)							OCFS2 Manual Pages						       o2cb_ctl(8)

NAME

       o2cb_ctl - Control program for the O2CB cluster service.

SYNOPSIS

       o2cb_ctl -C -n object -t type [-i] [-a attribute ]
       o2cb_ctl -D -n object [-u]
       o2cb_ctl -I [-o-z] -l manager> [-n object>] [-t type] [-a attribute]
       o2cb_ctl -H [-n object] [-t type>] [-a attribute>]
       o2cb_ctl -h
       o2cb_ctl -V

DESCRIPTION

       o2cb_ctl  is the control program for the O2CB cluster service.  Users are not advised to use this program directly but instead use the O2CB
       init service and/or ocfs2console.

OPTIONS

       -C     Create an object in the OCFS2 Cluster Configuration.

       -D     Delete an object from the existing OCFS2 Cluster Configuration.

       -I     Print information about the OCFS2 Cluster Configuration.

       -H     Change an object or objects in the existing OCFS2 Cluster Configuration.

       -h     Displays help and exit.

       -V     Print version and exit.

OTHER OPTIONS

       -a <attribute>
	      With -C, <attribute> is in format "parameter=value", where the parameter	is  a  valid  parameter  that  can  be	set  in  the  file
	      /etc/ocfs2/cluster.conf.	 With -I, <attribute> may be "parameter", indicating an attribute to be listed in the output, or it may be
	      "parameter==value", indicating that only objects matching "parameter=value" are to be displayed.

       -i     Valid only with -C. When creating something (node or cluster), it will also install it in the live cluster. If the parameter is  not
	      specified, then only update the /etc/ocfs2/cluster.conf.

       -n object
	      object  is  usually  the node name or cluster name. In the /etc/ocfs2/cluster.conf file, it would be the value of the name parameter
	      for any of the sections (cluster or node).

       -o     Valid only with -I. Using this parameter, if one asks o2cb_ctl to list all nodes, it will output it in a format suitable	for  shell
	      parsing.

       -t type
	      type can be cluster, node or heartbeat.

       -u     Valid only with -D. When deleting something (node or cluster), it will also remove it from the live cluster. If the parameter is not
	      specified, then only update the /etc/ocfs2/cluster.conf.

       -z     Valid only with -I. This is the default. If one asks o2cb_ctl to list all nodes, it will give a verbose listing.

EXAMPLES

       Add node5 to an offline cluster:

	      $ o2cb_ctl -C -n node5 -t node -a number=5
		   -a ip_address=192.168.0.5 -a ip_port=7777
		   -a cluster=mycluster

       Add node10 to an online cluster:

	      $ o2cb_ctl -C -i -n node10 -t node -a number=10
		   -a ip_address=192.168.1.10 -a ip_port=7777
		   -a cluster=mycluster

	      Note the -i argument.

       Query the IP address of node5:

	      $ o2cb_ctl -I -n node5 -a ip_address

       Change the IP address of node5:

	      $ o2cb_ctl -H -n node5 -a ip_address=192.168.1.5

SEE ALSO

       mkfs.ocfs2(8) fsck.ocfs2(8) tunefs.ocfs2(8) mounted.ocfs2(8) ocfs2console(8) o2cb(7)

AUTHORS

       Oracle Corporation

COPYRIGHT

       Copyright (C) 2004, 2010 Oracle. All rights reserved.

Version 1.6.4							  September 2010						       o2cb_ctl(8)