Electrical computers and digital processing systems: memory – Storage accessing and control – Hierarchical memories
Reexamination Certificate
2011-04-19
2011-04-19
Rutz, Jared I (Department: 2187)
Electrical computers and digital processing systems: memory
Storage accessing and control
Hierarchical memories
C711S112000, C711S154000, C710S014000, C710S052000, C710S074000
Reexamination Certificate
active
07930480
ABSTRACT:
Embodiments of the invention improve the performance of a HDD (Hard Disk Drive). In one embodiment, MBR (Master Boot Record) is read from a magnetic disk. The read MBR is stored in a sector buffer by an event handler. A segment control section acquires the MBR stored in the sector buffer and refers to the partition type field to identify the file system. The segment control section refers to a cache mode table and selects a cache mode which is associated with the file system specified in the MBR. In the subsequent read and write operations, buffer handling and command execution control are performed according to the determined cache mode. Since an appropriate cache mode is selected depending on the file system, it is possible to raise the performance.
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Hitachi Global Storage Technologies - Netherlands B.V.
Parikh Kalpit
Rutz Jared I
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