发明授权
- 专利标题: Method apparatus and system for a redundant and fault tolerant solid state disk
- 专利标题(中): 用于冗余和容错固态盘的方法装置和系统
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申请号: US12617023申请日: 2009-11-12
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公开(公告)号: US08201020B2公开(公告)日: 2012-06-12
- 发明人: Brian J. Cagno , John C. Elliott , Gregg S. Lucas , Andrew D. Walls
- 申请人: Brian J. Cagno , John C. Elliott , Gregg S. Lucas , Andrew D. Walls
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Kunzler Needham Massey & Thorpe
- 主分类号: G06F11/07
- IPC分类号: G06F11/07
摘要:
A redundant and fault tolerant solid state disk (SSD) includes a determination module configured to identify a first solid state disk controller (SSDC) configured to connect to a flash array and a second SSDC configured to connect to the flash array. A capture module is configured to capture a copy of an I/O request received by the first SSDC from a port of a dual port connector, and/or capture a copy of an I/O request received by the second SSDC from a port of the dual port connector, and identify a write I/O request from the I/O request. A detection module is configured to detect a failure in the first SSDC. A management module is configured to manage access to a flash array by the first SSDC and the second SSDC. An error recovery and failover module is configured to automatically reassign work from the first SSDC to the second SSDC.
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