- Patent Title: Storage system, storage extent release method and storage apparatus
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Application No.: US13293526Application Date: 2011-11-10
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Publication No.: US08347060B2Publication Date: 2013-01-01
- Inventor: Norio Shimozono , Kazuyoshi Serizawa , Yoshiaki Eguchi
- Applicant: Norio Shimozono , Kazuyoshi Serizawa , Yoshiaki Eguchi
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Kilpatrick Townsend & Stockton LLP
- Priority: JP2006-081051 20060323
- Main IPC: G06F12/02
- IPC: G06F12/02
Abstract:
This storage system has an allocation unit for allocating a storage extent in prescribed units to the dynamic logical volume upon storing the data sent from the host computer in the dynamic logical volume; a management unit for managing the storage extent recognized as being currently used by the file system among the storage extents allocated to the dynamic logical volume by the allocation unit; and a release unit for releasing the storage extent that is not being managed by the management unit from the dynamic logical volume.
Public/Granted literature
- US20120054462A1 Storage System, Storage Extent Release Method and Storage Apparatus Public/Granted day:2012-03-01
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