When your NetScaler appliances are running in a High Availability (HA) pair you should be aware when failovers occur, as this indicates an issue on one or both of the appliances, which you need to solve before both the appliances have the same issue. In the case the latter happens, or is already the case, the appliances will fail over continuously, which is known as HA failover ‘flip-flopping’.
Are you aware when an administrator has forgotten to save configuration on a Citrix NetScaler device? If configuration is not saved after a configuration change it will get lost when the NetScaler appliance restarts. This can obviously have severe consequences. MetrixInsight for NetScaler will alarm you whenever unsaved configuration is detected.
Certificates have a limited validity time and need to be renewed once in a while. Expired certificates may impact the availability of services. MetrixInsight for NetScaler monitors the expiration state of NetScaler certificates and alarms you when they are going to expire and have been expired.