A plugin for nagios to check the state of virtual servers on an LTM as well as creating Performance Data output on the amount of connections to each Virtual Server. The plugin is written in PHP and uses SNMP to gather the statuses of each Virtual Server. The plugin currently only supports SNMPv2 and has been tested on Big-IP 10.2 only but should work with other version of Big-IP.
iControl is an inbuilt API to F5 devices which can be used to view and make configuration changes. Most of the documentation is for LTMs (Local Traffic Manager) but the PowerShell script below will use iControl on a GTM (Gloabl Traffic Manager) to loop through all pool members and see if any are disabled, if any are disabled it will send an email stating which members are disabled.
To run this script you must first have the iControl PowerShell Script Snapin installed.