Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2006-06-28
2009-11-24
Bragdon, Reginald G (Department: 2189)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
Reexamination Certificate
active
07624228
ABSTRACT:
A processing speed is improved when there is a pattern in which read requests making access to continuous areas in an LBA space repeatedly alternate with write requests making access to continuous or non-continuous areas in the LBA space. In one embodiment, when the pattern in which read requests making access to continuous areas in an LBA space repeatedly alternate with write requests making access to continuous or non-continuous areas in the LBA space is extracted or a notice that the pattern has occurred is given from a host, write data required by write requests is buffered while executing read requests, and when this buffering of the write data is started, the position at which write data is started to be written is set to a position where the capacity of the buffered write data maximizes, taking account of the ratio of the amount of data transferred to a cache memory during reading to the amount of data transferred to the cache memory during writing.
REFERENCES:
patent: 2004/0205296 (2004-10-01), Bearden
patent: 2002-108704 (2002-04-01), None
Hiratsuka Yukie
Inoue Hiroaki
Nishikawa Manabu
Bragdon Reginald G
Duncan Patrick
Hitachi Global Storage Technologies - Netherlands B.V.
Loonan Eric
Townsend and Townsend / and Crew LLP
LandOfFree
Disk drive and method of controlling cache memory therein does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Disk drive and method of controlling cache memory therein, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk drive and method of controlling cache memory therein will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4071595