## write-cache mode -- write-back

A setting of the write-cache mode. When the write-cache mode is set to write back and the operating system sends data to the controller, the controller sends a confirmation back to the operating system before actually writing the data to a storage device. This increases performance, but, if a battery-backup cache is not used, increases the risk of data loss in the event of a power failure.

x-0584-SRM-00-00-EN