Fujitsu MPA3035AT Product Manual - Page 171

Partially hit data, Lack data, stopped, Requested data to be transferred, the same time.

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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 read-ahead operation newly. Requested data to be transferred HAP (stopped) Partially hit data Lack data 3) The cache data for next read command is as follows. Cache data DAP (stopped) Start LBA Last LBA C141-E034-02EN 6 - 21

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C141-E034-02EN
6 - 21
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
DAP
Partially hit data
Lack data
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 read-ahead operation newly.
(stopped)
HAP
(stopped)
Requested data to be transferred
DAP
Partially hit data
Lack data
3)
The cache data for next read command is as follows.
Cache data
Last LBA
Start LBA