HP Insight Cluster Management Utility - Manual (Page 120)

Figure 56 Power off dialog box
7.8 Boot
When one or more nodes are selected, this task enables you to boot a collection of nodes on their
own local disk or over the network. You must select nodes to be booted prior to running this
command.
The boot procedure uses the management card of each node. The password for the management
card must be entered. Nodes to be booted must have the same management card password.
IMPORTANT: If the nodes are booted, the boot procedure attempts a proper shutdown. If the
shutdown fails, then the management card resets which can damage the file system. To avoid this
risk, perform a shutdown operation before issuing a boot command.
Figure 57 Boot dialog box
7.9 Reboot
When one or more nodes are selected, this task enables a system administrator to issue the reboot
command on selected nodes. The reboot command is performed immediately by default, or delayed
for a specified time between 1 to 60 minutes. The administrator can also send a message to the
users logged on selected nodes by filling in the message edit box.
IMPORTANT: The reboot command is performed on nodes using rsh or ssh. On the compute
node, permission must be given from the management node to perform commands as superuser
or root. Otherwise, the reboot command does not work properly.
Figure 58 Reboot dialog box
7.10 Change UID LED status
When one or more nodes are selected, this task changes the status of the locator LED on selected
nodes. If the switch is on, it is turned off and vice versa.
NOTE: This menu is available only if the node has an iLO management card properly registered
in the HP Insight CMU database and the system is equipped with a status LED.
120 Managing a cluster with HP Insight CMU