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Install and maintain

Maintain AFF C250 hardware

Contributors netapp-jsnyder

For the AFF C250 storage system, you can perform maintenance procedures on the following components.

Boot media

The boot media stores a primary and secondary set of boot image files that the system uses when it boots.


The chassis is the physical enclosure housing all the controller components such as the controller/CPU unit, power supply, and I/O.


A controller consists of a board, firmware, and software. It controls the drives and implements the ONTAP functions.


You must replace a DIMM (dual in-line memory module) when a memory mismatch is present, or you have a failed DIMM.


A drive is a device that provides the physical storage media for data.


The fan cools the controller.

Mezzanine card

A Mezzanine card is a printed circuit board that plugs directly into another plug-in card.

NVMEM battery

A battery is included with the controller and preserves cached data if the AC power fails.

Power supply

A power supply provides a redundant power source in a controller shelf.

Real time clock battery

A real time clock battery preserves system date and time information if the power is off.