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) o2cb(7)
AUTHORS
Oracle Corporation
COPYRIGHT
Copyright © 2004, 2010 Oracle. All rights reserved.