Monitoring Disk Controllers

A disk controller is a card inside a computer that connects one or several physical disk drives to the computer. Some intelligent disk controllers (such as RAID controllers) manage several physical disks as a single logical disk which is the only disk exposed to the operating system. Monitoring both physical and logical disks is essential to ensure that the storage is available.

The purpose of the disk controller instance is to act as a container for logical disks and physical disks monitoring, and symbolize the way hard drives are setup on the platform. In addition, some information regarding the disk controllers, like their brand, model or driver version, is displayed in the Infobox.

Depending on the information available, the BatteryStatus and ControllerStatus parameters will be displayed.

•	The BatteryStatus parameter triggers an alert to predict that the disk controller battery will be unable to support the controller in the event of a power failure.

•	The ControllerStatus parameter displays the status of the disk controller

If a diskcontroller goes missing, all its disk dependencies will be missing as well.