Fujitsu MPB3052AT User Manual download pdf (Page 171)

C141-E045-02EN6 - 16

1) Sets the host address pointer (HAP) and the disk address pointer (DAP) to the lead of

segment.

Segment only for read

DAP

HAP

2) Transfers the requested data that already read to the host system with reading the requested

data from the disk media.

Read-requested data

Stores the read-requested

data upto this point

Empty area

DAP

HAP

3) After reading the requested data and transferring the requested data to the host system had

been completed, the disk drive stops command execution without performing the read-

ahead operation.

Read-requested data

Empty area

DAP

(stopped)

HAP

4) Following shows the cache enabled data for next read command.

Cache enabled data

Empty area

Last LBAStart LBA

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Fujitsu MPB3052AT User Manual Page 171