Invention Grant
- Patent Title: Storage subsystem including logic for copy-out and write
- Patent Title (中): 存储子系统包括用于复制和写入的逻辑
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Application No.: US12905494Application Date: 2010-10-15
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Publication No.: US08793449B1Publication Date: 2014-07-29
- Inventor: Jeffrey S. Kimmel
- Applicant: Jeffrey S. Kimmel
- Applicant Address: US CA Sunnyvale
- Assignee: NetApp, Inc.
- Current Assignee: NetApp, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: DeLizio Gilliam, PLLC
- Main IPC: G06F12/00
- IPC: G06F12/00
Abstract:
A storage server receives a write request from a client system including new data and a location to store the new data. The storage server transmits a copy instruction to a storage subsystem to relocate old data at the location and transmits a write instruction to the storage subsystem to overwrite the old data with the new data. The storage subsystem includes fast stable storage in which the copy instruction and the write instruction are stored. After receiving each instruction, the storage subsystem sends an acknowledgement to the storage server. When both instructions have been acknowledged, the storage server sends an acknowledgement to the client system. The storage subsystem performs the instructions asynchronously from the client system's write request.
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