发明授权
US07664787B2 System and method for creating an object-level snapshot in a storage system
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在存储系统中创建对象级快照的系统和方法
- 专利标题: System and method for creating an object-level snapshot in a storage system
- 专利标题(中): 在存储系统中创建对象级快照的系统和方法
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申请号: US11790522申请日: 2007-04-26
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公开(公告)号: US07664787B2公开(公告)日: 2010-02-16
- 发明人: Hidehisa Shitomi , Manabu Kitamura
- 申请人: Hidehisa Shitomi , Manabu Kitamura
- 申请人地址: JP Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Mattingly & Malur, P.C.
- 主分类号: G06F17/30
- IPC分类号: G06F17/30
摘要:
A system and method for object-level snapshot creation in an object-based storage system. The host device includes a first object management table (OMT) and a file system. The object-based storage system is connected to the host device and includes a controller and object-based storage devices (OSD). The controller includes a snapshot module, a second OMT. The snapshot module receives and processes OSD and other commands from the file system or a service processor, creates an original object and a mirror object in an OSD, and initiates a snapshot operation in an OSD. The first OMT may also reside at a metadata server. A snapshot operation may be a mirror operation or a copy on write operation. The first OMT and the second OMT maintain mapping information of a file identifier, a partition ID, and an object ID, and an object status and a generation number of snapshots.
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