Task 16: Configure SNMP Trap Destination for Modular Cooling System Devices

Perform this task only if the hardware configuration contains Modular Cooling System (MCS) devices. Bypass this task if MCS devices are not in use.

If the HP XC system contains MCS devices, HP recommends that you configure the MCS devices to send their SNMP traps to the management server IP alias. After doing so, all SNMP traps are processed by the snmptrapd service and are subsequently logged to syslog by the snmptt service. The syslog-ng service logs all traps to the /hptc_cluster/adm/log/consolidated.log file and the /hptc_cluster/adm/logs/snmptraps.log file. This enables Nagios to generate alerts for all MCS traps posted with a priority of WARNING or greater.

Use one of the following methods to determine the management server IP alias:
- If Nagios is configured for improved availability, the management server IP alias is the nagios_master_alias as defined in the /etc/hosts file:
  # grep nagios_master /etc/hosts IP_address nagios_master_alias
- Otherwise, the management server IP alias is the internal IP address of the head node:
  # grep nh /etc/hosts IP_address n16 nh hplsadm n16.localhost.localdomain

Configure the MCS devices to send their SNMP traps to the management server IP alias; use the IP alias obtained in the previous step:

# mcs_webtool -H MCS_IP_address -p MCS_Admin_password \
-i -a IP_address -e IP_address
Adding trap receiver 1: IP_address
Enabling trap receiver 1: IP_address

Trap Receiver Status for MCS at MCS_IP_address:
Authentication Traps: Disable
Trap Receiver 1: IP_address Enable
Trap Receiver 2: 0.0.0.0 Disable
Trap Receiver 3: 0.0.0.0 Disable
Trap Receiver 4: 0.0.0.0 Disable

Verify that the SNMP trap destination has been set properly on the MCS devices:

# mcs_webtool -H MCS_IP_address -p compaq -i
Trap Receiver Status for MCS at MCS_IP_address:
Authentication Traps: Disable
Trap Receiver 1: IP_address Enable
Trap Receiver 2: 0.0.0.0 Disable
Trap Receiver 3: 0.0.0.0 Disable
Trap Receiver 4: 0.0.0.0 Disable

Proceed to “Task 17: Finalize the Configuration of Compute Resources”.

Task 16: Configure SNMP Trap Destination for Modular Cooling System Devices

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