Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2005-08-23
2005-08-23
Padmanabhan, Mano (Department: 2188)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
C711S151000, C711S158000, C711S163000, C711S167000, C718S103000, C710S040000
Reexamination Certificate
active
06934818
ABSTRACT:
In a write process through channels Ch1, Ch2, and Ch3, the deadline of each channel is set based on the transfer rate variable by the ratio of dummy packets to valid packets, and deadline information is written with write data on a disk. In a read process through a channel Ch4, the deadline is set according to the deadline information read with read data from the disk. Then, data is sequentially processed in order from the data having the earliest deadline. Considering the difference in transfer rate between outer and inner zones on the disk, a write zone is determined. When data is simultaneously recorded through the channels Ch1and Ch2on an ASMO in a groove-land record system, the data is sequentially recorded through the channel Ch1on the groove and through the channel Ch2on the land.
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Fujitsu Limited
Padmanabhan Mano
Song Jasmine
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