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o2cb_ctl

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o2cb_ctl: Control program for the O2CB cluster service.

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. O2CB_CTL(8)
 
 
 

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