HP XC System Software Administration Guide Version 3.1

a. Issue the following command:
# /opt/hptc/config/sbin/mcs_config
b. Restart Nagios. For more information, see “Stopping and Restarting Nagios” (page 110).
6. Examine the /opt/hptc/config/mcs_advExpected.static.db file to ensure that the values
for the MCS advanced setting are appropriate for your site.
Restart Nagios if you changed this file. For more information, see “Stopping and Restarting Nagios”
(page 110).
7. The /opt/hptc/nagios/etc/mcsAlertRules contains rules to trigger alerts for SNMP traps.
You can edit this file to add, remove, or modify these rules.
8. By default, the automatic drain and power-down actions by the MCS event handler is disabled. This
is indicated by the presence of the /opt/hptc/nagios/var/mcsPoweroffsDisabled file.
Optionally, enter the following command to enable automatic node drain and power-down actions
for nodes under MCS control:
# /opt/hptc/sbin/manage_mcs_status -p enable
For more information on this command, see manage_mcs_status(8).
D.2 Regenerating the Nagios MCS Configuration
Use the following procedure to regenerate the Nagios MCS configuration file,
/opt/hptc/config/mcs.ini, and the local MCS Nagios configration file,
/opt/hptc/nagios/etc/mcs_local.cfg:
1. Use the text editor of your choice to edit the /opt/hptc/config/mcs.ini file to make the
appropriate configuration changes and save the file.
2. Issue the following command:
# /opt/hptc/config/sbin/mcs_config
3. Restart Nagios. For more information, see “Stopping and Restarting Nagios” (page 110).
D.3 Useful Administrative Commands
The following are useful operator commands for the HP MCS system; these commands reside in the
/opt/hptc/sbin directory:
• manage_mcs_status
Use this command to:
— Show current online or offline status of the HP MCS unit.
— Set the online or offline status for all or specified MCS devices.
NOTE: MCS devices that are offline are not monitored.
— Enable or disable the event handler to perform automatic node drains and to power-down actions
on the nodes under MCS control.
See manage_mcs_status(8) for additional information.
• poweroff_mcs_nodes
Use this command to power off nodes associated with a specified MCS device manually or to power
off all nodes under MCS control.
When you use this command to power off an MCS device that is controlling one or more service
nodes, the nodes are powered off in the following order:
1. The Compute nodes
2. The Service nodes
3. The Head node
For additional information, see poweroff_mcs_nodes(8).
274 HP MCS Monitoring