Learn about maintaining your AFF C190 storage system
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Maintain the hardware of your AFF C190 storage system to ensure long-term reliability and optimal performance. Perform regular maintenance tasks such as replacing faulty components to prevent downtime and data loss.
Boot media
The boot media stores a primary and secondary set of boot image files that the system uses when it boots.
Chassis
The chassis is the physical enclosure housing all the controller components such as the controller/CPU unit, power supply, and I/O.
Controller
A controller consists of a board, firmware, and software. It controls the drives and implements the ONTAP functions.
DIMM
You must replace a DIMM (dual in-line memory module) when a memory mismatch is present, or you have a failed DIMM.
Drive
A drive is a device that provides the physical storage media for data.
Fan
The fan cools the controller.
NVMEM battery
A battery is included with the controller and provides the backup power 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.