Data storage device and data management method in data...

Details Data storage device and data management method in data... Data storage device and data management method in data...

2009-02-23

2011-12-20

Gu, Shawn X (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S103000, C711S112000, C711S161000, C711S206000

Reexamination Certificate

active

08082409

ABSTRACT:
In one embodiment, a HDD creates a segment table to associate an address of user data in a flash memory with an LBA in a magnetic disk. The HDD updates the segment table in a DRAM and saves it to the flash memory at a specific timing. The HDD creates journals indicating the update of the segment table and saves it to the flash memory. The latest segment table can be restored using the segment table and the journals in the flash memory.

REFERENCES:
patent: 5576303 (1996-11-01), Shibuya et al.
patent: 2006/0080501 (2006-04-01), Auerbach et al.
patent: 2006/0161731 (2006-07-01), Nakatani et al.
patent: 2005-134125 (2005-05-01), None

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