Modified buddy system for managing disk space

Details Modified buddy system for managing disk space Modified buddy system for managing disk space

G - Physics

06

F

G06F 3/06 (2006.01) G06F 15/40 (1990.01)

Patent

CA 2124753

A modified buddy system is adopted for managing disk space in a disk storage. The modified buddy system uses a minimal amount of memory space and provides very quick access to extents within the disk space. The modified buddy system utilizes a tree structure of nodes, wherein each node represents an extent of disk space. A bitmap is provided for holding state bits for each of the nodes in the tree structure. The bitmap is organized to preserve locality of reference.

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