HP XC System Software Administration Guide Version 3.2

NOTE: If all these conditions apply, follow the procedure to restart HP Serviceguard:
• Your system is configured for improved availability.
• Your system is configured for HP Serviceguard, but it does not start up.
• You rebooted the head node.
• You want to start up the head node only.
1. Enter the following command where hn_name is the name of the head node:
# cmruncl -n hn_name
The default installed path name for this command is
/usr/local/cmcluster/bin/cmruncl.
2. Answer y at the prompt.
3.4 Shutting Down One or More Nodes
You can shut down only certain nodes by specifying them in a nodelist parameter.
The following example shuts down nodes n2, n3, and n5 gracefully; the nodes are shut down
then powered off:
# stopsys n[2-3,5]
The following example shuts down nodes n1 and n4 by powering them off immediately:
# stopsys --hard n[1,4]
For more information about the stopsys command, see stopsys(8).
3.5 Determining a Node's Power Status
You can determine a node's power status by using the shownode status command and
specifying the node by its node name:
# shownode status n2
ON
Valid power states are ON, OFF, or FAILED.
Specifying more than one node lists the node name and the status, as shown here:
# shownode status n1 n2
n2 ON
n1 ON
You can request the power status of all nodes by omitting the nodelist parameter. This returns
all the nodes whose status is either ON or OFF:
# shownode status
.
.
.
n2 ON
n1 ON
3.6 Locating a Given Node
Most nodes supported on the HP XC system have a Unit Identifier LED that can be lit; not all
nodes have this feature.
Follow this procedure to light the Unit Identifier LED on a node with this feature, given its
nodename:
1. Log in as superuser.
2. Illuminate the LED on the specified node with the locatenode command:
# locatenode --on nodename
3.4 Shutting Down One or More Nodes 57