System and method for allocating storage in a fragmented storage space
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United States of America Patent
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Sep 1, 1998
Issued Date -
N/A
app pub date -
Jul 30, 1996
filing date -
Feb 8, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
This invention provides a one-pass storage process to manage storage space in a storage hierarchy system wherein whole objects or fragments of whole objects can be retrieved efficiently. Metadata to represent appropriate geometric characteristics of storage devices, units of transfer to minimize retrieval time, and buffers, are used to control the storage allocation. A plurality of objects from an object set are aggregated into at least one object grouping for storage where the object grouping is smaller than a minimum storage size. For each object grouping and each object not in an object grouping, a determination is made of the total number of blocks of storage needed and a minimum transfer size. Extents of blocks are identified in the storage device of a size greater than the minimum transfer size totalling the total number of blocks of storage needed.
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