Work:
Cache vaulting
The process of dumping the contents of cache into a dedicated set of physical disks during a power failure.
Cache mirroring
Each write to cache is held in two different memory addresses on two independent memory boards.
Low watermark
The point at which the storage system stops the forced flushing and returns to idle flush behavior.
Pre-fetch (read ahead)
In a sequential read request, a contiguous set of associated disk blocks that have not yet been requested by the host is read from the disk, and placed in cache in advance.
Answer:
Cache vaulting