Method for storing metadata in a physical sector

Details Method for storing metadata in a physical sector Method for storing metadata in a physical sector

2005-04-12

2005-04-12

Padmanabhan, Mano (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Memory configuring

C711S171000, C711S172000, C711S173000, C711S202000, C711S206000, C711S209000, C714S006130, C714S052000

Reexamination Certificate

active

06880060

ABSTRACT:
A method for embedding integrity metadata. In one exemplary embodiment, a plurality of integrity metadata segments is determined. Each integrity metadata segment is associated with a segment of user data. The user data is mapped to a plurality of physical sectors, each physical sector containing a segment of user data and the associated integrity metadata segment. For one exemplary embodiment, a common I/O data block size is determined, and its data is mapped into a number of 512-byte sectors. The number of 512-byte sectors corresponds to the number required for the common I/O data block size plus one or more additional 512-byte sectors. This creates additional space in each sector to accommodate the integrity metadata. Integrity metadata for each data segment of the common I/O size is determined. The integrity metadata for each sector is mapped to the additional space of each sector.

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