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专利名称：EFFICIENT ALLOCATION AND
RECLAMATION OF THIN-PROVISIONEDSTORAGE
发明人：Leo S. Luan,Frank B. Schmuck申请号：US14866014申请日：20150925
公开号：US20160011963A1公开日：20160114
专利附图：
摘要：Embodiments relate to granular management of data storage blocks in a datastorage system. In one aspect, status values are employed to track “used”, “free”,
and “claimed free” storage blocks. A storage block having stored data is identified asused, a storage block available to store data is identified as free, and a storage blockhaving previously stored data removed that has not been reclaimed is identified asclaimed free. These values are maintained on a map to track each data block within thedata storage system. One or more used blocks are de-allocated, which includes changingthe status value of each used block to claimed free Available claimed free data blocksare prioritized for data block allocation over available free data blocks for efficientstorage, including enabling efficient reclamation of data blocks and minimizing datamovement needed for reclamation-oriented de-fragmentation.
申请人：INTERNATIONAL BUSINESS MACHINES CORPORATION
地址：Armonk NY US
国籍：US
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