Configuring Net-SNMP

The GPFS™ subagent process connects to the Net-SNMP master agent, snmpd.

The following entries are required in the snmpd configuration file on the collector node (usually, /etc/snmp/snmpd.conf):

master agentx
AgentXSocket tcp:localhost:705
trap2sink managementhost

where:

managementhost: Is the host name or IP address of the host to which you want SNMP traps sent.

If your GPFS cluster has a large number of nodes or a large number of file systems for which information must be collected, you must increase the timeout and retry parameters for communication between the SNMP master agent and the GPFS subagent to allow time for the volume of information to be transmitted. The snmpd configuration file entries for this are:

agentXTimeout 60
agentXRetries 10

where:

agentXTimeout: Is set to 60 seconds for subagent to master agent communication.
agentXRetries: Is set to 10 for the number of communication retries.

Note: Other values may be appropriate depending on the number of nodes and file systems in your GPFS cluster.

After modifying the configuration file, restart the SNMP daemon.