Storage thin provisioning and space reclamation
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United States of America Patent
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May 3, 2016
Issued Date -
N/A
app pub date -
Jan 14, 2014
filing date -
Jan 14, 2014
priority date (Note) -
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Abstract
A storage system includes a plurality of storage modules. Each storage module may be interconnected by a module interconnect switch and may include a memory, a central processing unit, a cache, and a plurality of storage devices. Storage space may be reclaimed in the storage system by a storage module requesting a copy of a file system bitmap, receiving a request to write data to a partition of the storage module, updating a write table to indicate the partition write, querying the copy of the file system bitmap and the write table to determine if the partition has been written to and if the partition may be reclaimed, and reclaiming the partition for subsequent reallocation and reuse.
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