6.5
3)The cache data for next read command is as follows.
Cache data
Start LBA | Last LBA |
6.5.3.4 Partially hit
A part of requested data including a lead sector are stored in the data buffer. The disk drive starts the data transfer from the address of the hit data corresponding to the lead sector of the requested data, and reads remaining requested data from the disk media directly. The disk drive does not perform the
Following is an example of partially hit to the cache data.
Cache data
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Start LBA | Last LBA | ||
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. However, the disk drive does not perform the
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| Requested data to be transferred | (stopped) | ||
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Partially hit data
Lack data
DAP (stopped)
