Manual Chapter : Pool member status events

Applies To:

  • BIG-IQ Centralized Management

    8.4.0, 8.3.0, 8.2.0, 8.1.0, 8.0.0

Updated Date: 07/07/2026

Pool member status events

Pool member events and alerts indicate the status of a pool member. You can see these events and alerts in the charts of the application properties screen (Applications > APPLICATIONS > <Application Name> > <Application HTTP Service>) and in the Local Traffic dashboards (Monitoring > DASHBOARDS > Local Traffic). You can also view alerts in the Active Alerts and Alert History screens (Applications > ALERT MANAGEMENT).

Alert

Description

Indication

Default Thresholds

Impact

Pool Member Offline

The pool member (server) is offline as a result of status or configuration changes. The system then updates the pool member status with one of the following messages:

  • Online- The pool member is back online.
  • Disabled- The pool member is disabled.
  • Pool monitor disabled- The pool member monitor, which is configured on the BIG-IP system, is disabled.
  • Pool member deleted- The pool member has been deleted from the pool's configuration.

Pool member issues can lead to increases in application response time, server-side round trip time (RTT), incomplete transactions, and server errors.

Critical:

Offline

Prolonged impact on application performance might require the addition of a new pool member.

Pool health

The pool member response to the server.

Critical: All pool members in a pool are unresponsive

Moderate:

At least one, but not all, members in a pool are unresponsive

Cleared:

All pool members are back online, or the virtual server was deleted.