Operations
data that is a target of caching and remains before a full hit, the data is retained when execution of the command is completed. This is done so that a new read- ahead operation is not performed. If the full hit command is received during the
1)An example is the state shown below where the previous read command is executing sequential reading. First, HAP is set at the location where hit data is stored.
| HAP end location of the previous read command |
HAP | HAP (It is reset to the hit data location for transfers.) |
Cache data
Full hit data
Cache data
DAP
DAP end location of the previous read command
2)The read requested data is transferred, and a new
HAP 
(stop)
Cache data
Full hit data
Cache data
