General Information

Service Check Name: Check F5 LTM Pools

Service Check Category: System Checks

Active / Passive: Active

Description

This check monitors the health of F5 Local Traffic Manager (LTM) pools by querying the device via SNMP. It evaluates each pool by counting the number of active (up) members and comparing it against the total configured members to determine the pool’s overall status.
 

Check-specific Fields

(See Service Check for configuration parameters common to all service checks.)

CRITICAL IF POOL <= MEMBERS (DEFAULT 1) - (Optional)

• Warning alarm:

  A warning alarm is triggered for a pool when at least one member is down, but the number of remaining active members is still greater than the critical threshold.

  In simple terms, the pool is not fully healthy but has not yet reached the critical point of failure.

• Critical alarm:
  A critical alarm is triggered for a pool when the number of active members is equal to or less than a configurable threshold. By default, this threshold is 1, meaning the pool enters a critical state if it has only one active member or none.
  You can adjust this threshold by using the -c command-line argument.
  Example:
  If you set -c 2, the check will trigger a critical alarm when a pool has 2, 1, or 0 active members.