- 专利标题: Generating volume snapshots
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申请号: US16583457申请日: 2019-09-26
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公开(公告)号: US11853584B1公开(公告)日: 2023-12-26
- 发明人: John Colgrove , Ethan Miller , John Hayes , Cary Sandvig , Christopher Golden , Jianting Cao
- 申请人: PURE STORAGE, INC.
- 申请人地址: US CA Mountain View
- 专利权人: PURE STORAGE, INC.
- 当前专利权人: PURE STORAGE, INC.
- 当前专利权人地址: US CA Santa Clara
- 主分类号: G06F3/06
- IPC分类号: G06F3/06
摘要:
A method including, responsive to receiving a request identifying a volume and indicating a command to take a snapshot of the volume, mapping a second logical grouping of data to reference the first logical grouping of data, and remapping the first volume to map to the second logical grouping of data instead of the first logical grouping of data such that the first volume remains addressable with similar access permissions before and after creating the snapshot. The method also includes, in response to receiving a write request targeting the second logical grouping, splitting the second logical grouping into a plurality of ranges including a first range and a second range; wherein the first range of the second logical grouping maps to the first logical grouping, and the write request is performed on the second range of the second logical grouping.
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