About Neverfail System Plug-in
The Neverfail System Plug-in for Neverfail Continuity Engine adds system performance monitoring features to identify critical hardware and operating system performance issues that could affect system availability.
Supported Versions of Microsoft Windows
x64 / Intel 64 Platform (64-bit hardware)
Install and Uninstall the Neverfail System Plug-in Using the Advanced Management Client
The Neverfail System Plug-in can be installed either via the Neverfail Continuity Engine deployment process or by using Application -> Plugins in the Advanced Management Client using the procedure below. Neverfail recommends that for initial deployments of Neverfail System Plug-in, installation should be performed using Engine Management Service.
Note: Plug-ins should be installed only on the active server. Installation of a plug-in on a passive server may cause an Exception to occur.
Install the Neverfail System Plug-in
Uninstall the Neverfail System Plug-in
When the Plug-in is uninstalled, the associated files are not removed. This is by design for future functionality. To remove these files:
Note: As an alternative, reinstallation can be accomplished by using the download files from the original download location after removing the plug-in.
Monitoring the system environment can be broadly categorized as:
Active Server and Service Availability Monitoring
Neverfail monitors the availability of a server by sending continuous heartbeat signals via the Neverfail Channel to the other server in the pair. The “Yes I am alive” response ensures that not only is the other server powered-up, but also that it is available if needed. The heartbeat signal interval is configurable from the Advanced Management Client.
Application and Performance Monitoring
Neverfail monitors general system performance via the Neverfail System Plug-in. The Neverfail System Plug-in performs this operation by checking select WMI counters at predetermined intervals to ensure that results of the check are within defined parameters. Neverfail System Plug-in uses 'Rules' to take action should a check reveal results outside of the defined parameters.
Note: Many of the rules listed below are provided in the disabled state because default values cannot be provided as these values depend upon the server and application load.
The following Performance Monitoring Rules are installed by the Neverfail System Plug-in:
To configure/modify the Rules:
Note: This dialog also can be used to enable and disable the selected Rule.
The following 'Tasks' are installed by Neverfail System Plug-in:
To configure/modify these 'Tasks', follow the steps below:
The following Services are protected by the Neverfail System Plug-in:
The Neverfail System Plug-in defines one protected folder.
Automatic Filter Discovery
The Neverfail System Plug-in provides Automatic Filter Discovery.
The Automatic Filter Discovery component is configurable and runs every 2 minutes by default.
Neverfail System Plug-in 401.0.2 or higher
Neverfail Continuity Engine 8.1 or higher