1)The disk drive sets the HAP to the address where the partially hit data is stored, and sets the DAP to the address just after the partially hit data.
HAP
Partially hit data
Lack data
DAP
2)The disk drive starts transferring partially hit data and reads lack data from the disk media at the same time.
Requested data to be transferred
HAP (stopped)
Partially hit data
Lack data
DAP
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