Cache Read Ahead
Cache read-ahead, also known as prefetch, allows the controller, while it is reading and copying host-requested data blocks from disk into the cache, to copy additional data blocks into the cache. This increases the chance that a future request for data could be fulfilled from the cache. Cache read-ahead is important for multimedia applications that use sequential I/O.
The cache read-ahead multiplier values specify the multiplier to use to determine how many additional data blocks are read into cache. Choosing a higher cache read-ahead multiplier might increase the cache hit percentage, however, transfer time might also increase.
Enable and set cache read-ahead on the Logical Drive Properties dialog. For more information, see Specifying Logical Drive Properties.