US Patent 7949828 Data storage control on storage devices
Patent 7949828 was granted and assigned to Hitachi on May, 2011 by the United States Patent and Trademark Office.
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Patent abstract
An object of the present invention is to improve the usage efficiency of a storage extent in a storage system using the Allocation on Use (AOU) technique. A controller in the storage system allocates a storage extent in an actual volume to an extent in a virtual volume accessed by a host computer, detects any decrease in necessity for maintaining that allocation, and cancels the allocation of the storage extent in the actual volume to the extent in the virtual volume based on the detection result.
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Patent Inventor Names
Kentaro Kakui0
Kyosuke Achiwa0
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US Patent 07949828 Data storage control on storage devices US Patent 7949828 Data storage control on storage devices
Infobox
Patent Number
079498280
Patent Number
79498280
Edits on 26 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
079498280
Date of Patent
May 24, 2011
0Patent Application Number
127044630
Date Filed
February 11, 2010
0Patent Primary Examiner
Edits on 7 Dec, 2021
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Infobox (+8 properties)
US Patent 07949828 Data storage control on storage devices
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07949828
Date of patent
May 24, 2011
Patent application number
12704463
Date Filed
February 11, 2010
Patent primary examiner
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