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US 7,490,212 B2Granted
System and method for writing data to dedicated bands of a hard disk drive
AssigneeHitachi Global Storage Technologies Netherlands B.V.
InventorsPrakash Kasiraj, Richard M. H. New, Jorge Campello de Souza, Mason Lamar Williams
Life of this patent
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Abstract
Data is written to a hard disk drive using shingled writing principles, i.e., each data track is partially overwritten when an immediately contiguous data track is written. Two or more contiguous data tracks establish a band, and a band may store data from one and only one file, such as an AV file.
Claims7
A hard disk drive, comprising:
- (a) disk storage means for holding data in at least one of:
- (i) bands comprising a plurality of tracks and
- (ii) isolated tracks;
- (b) means for writing data to said disk storage means;
- (c) means for controlling said means for writing data such that data from one and only one file or AV stream is written to a band on the disk storage means such that if a last allocated band for a file or AV stream is only partially full when said file or AV stream has been completely written to the storage means, then the remaining space is not used;
- wherein the means for controlling cause the means for writing to write shingled tracks.
3 more elements
Dependencies are inferred from the claim text.