A server has a disk array controller with battery-backed cache. Which of the following will MOST likely happen if the server loses power?

Battery-backed cache (BBWC or BBU) on a RAID controller maintains power to the cache memory during a power failure, preventing data loss. Once power is restored to the server, the controller then writes this preserved data from the cache to the physical hard drives, completing any pending write operations.

The primary purpose of battery-backed cache is to prevent the loss of data stored in volatile cache memory during power outages by supplying temporary power.

The battery on a disk array controller typically only powers the cache memory, not the entire disk array itself, which would draw significantly more power.

Information in cache is temporarily held in powered volatile memory and is written to persistent disk storage, not directly transferred to or permanently stored in firmware.