A Field Replaceable Unit (FRU) is a component that can be replaced by the user or technician without having to send the entire product or system to a repair facility.Dell’s Customer Replaceable Unit (CRU) program allows customers to replace designated hardware components, which are typically considered as FRUs1.

In the context of Dell PowerStore Maintenance, the Battery Backup Unit (BBU) is considered an FRU because it is designed to be easily replaced in the field. The BBU is critical for maintaining power to the system in the event of a power failure, ensuring that data is not lost and the system can be shut down gracefully.

The other components listed, such as DIMMs, Embedded IO Modules, and Nodes, may not be as easily replaceable by the customer or may require more technical expertise or special tools. Therefore, they are not typically classified as FRUs within the Dell PowerStore ecosystem.

For detailed procedures on replacing the BBU or any other FRU components, it is recommended to refer to the official Dell PowerStore Maintenance documents and follow the guidelines provided for safe and effective replacement. This ensures that the system integrity is maintained and any warranty or support agreements remain valid.