Net-SNMP traps
Traps provide asynchronous notification to the SNMP application when a particular event has been triggered in GPFS. The following table lists the defined trap types:
| Net-SNMP trap type | This event is triggered by: |
|---|---|
| Mount | By the mounting node when the file system is mounted on a node. |
| Unmount | By the unmounting node when the file system is unmounted on a node. |
| Add Disk | By the file system manager when a disk is added to a file system on a node. |
| Delete Disk | By the file system manager when a disk is deleted from a file system. |
| Change Disk | By the file system manager when the status of a disk or the availability of a disk is changed within the file system. |
| SGMGR Takeover | By the cluster manager when a file system manager takeover is successfully completed for the file system. |
| Node Failure | By the cluster manager when a node fails. |
| Node Recovery | By the cluster manager when a node recovers normally. |
| File System Creation | By the file system manager when a file system is successfully created. |
| File System Deletion | By the file system manager when a file system is deleted. |
| File System State Change | By the file system manager when the state of a file system changes. |
| New Connection | When a new connection thread is established between the events exporter and the management application. |
| Event Collection Buffer Overflow | By the collector node when the internal event collection buffer in the GPFS daemon overflows. |
| Hung Thread | By the affected node when a hung thread is detected. The GPFS Events Exporter Watchdog thread periodically checks for threads that have been waiting for longer than a threshold amount of time. |
| Storage Pool Utilization | By the file system manager when the utilization of a storage pool becomes full or almost full. |