HP XC System Software Administration Guide Version 3.0

2. Invoke the startsys command with the --image_and_boot option:
# startsys --image_and_boot
For additional information on options that affect imaging, see startsys(8).
Restarting a Node for Imaging
The following procedure describes how to image and boot a node that is already running. In this instance,
the node needs to be imaged to accommodate a recent update to the golden image.
1. Log in as superuser (root) on the head node.
2. Invoke the startsys command with the --force and --image_and_boot options:
# startsys --force --image_and_boot node
Shutting Down the HP XC System
The stopsys command implements the actions to be taken to shut down the system.
The following procedure describes the steps necessary to shut down the HP XC system:
1. Log in to any node as superuser.
Logging in to the head node is the preferred node for shutting down the system.
2. Enter the stopsys command to shut down the HP XC system. If necessary, you can specify a delay
(in minutes) with the --delay option:
# stopsys --delay 5
Notes
Use the --full option to shut down the head node. By default, the stopsys command keeps the head
node running.
The stopsys command initiates a shutdown command on the nodes and starts a countdown. The stopsys
command forces the node to power off if it does not power off after the countdown. You can use the --hard
option to ignore the countdown and power the nodes off immediately.
For additional information about the stopsys command, see stopsys(8).
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).
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
40 Starting Up and Shutting Down the HP XC System