发明授权
US5504858A Method and apparatus for preserving data integrity in a multiple disk
raid organized storage system
失效
用于在多个磁盘组合存储系统中保持数据完整性的方法和装置
- 专利标题： Method and apparatus for preserving data integrity in a multiple disk raid organized storage system
- 专利标题（中）： 用于在多个磁盘组合存储系统中保持数据完整性的方法和装置
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申请号： US385227申请日： 1995-02-08
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公开(公告)号： US5504858A公开(公告)日： 1996-04-02
- 发明人: Robert A. Ellis , Clark E. Lubbers , Steven J. Malan , Peter Rivera , Sid Snyder , David W. Thiel , Richard B. Wells
- 申请人： Robert A. Ellis , Clark E. Lubbers , Steven J. Malan , Peter Rivera , Sid Snyder , David W. Thiel , Richard B. Wells
- 申请人地址： MA Maynard
- 专利权人： Digital Equipment Corporation
- 当前专利权人： Digital Equipment Corporation
- 当前专利权人地址： MA Maynard
- 主分类号： G06F11/10
- IPC分类号： G06F11/10 ; G06F11/00
摘要：
A data storage system using a RAID array and a logging process and apparatus that identifies a parity block that may not contain the proper parity for its associated data blocks and which prevents such inconsistent parity information from being used in the regeneration of unavailable data. A small fraction of the blocks of each disk are dedicated to storing parity metadata bits. The parity metadata is associated with the parity blocks and identifies whether or not each parity block contains the proper parity information for its associated data blocks or may contain invalid information. The data integrity of the RAID array is preserved by preventing the generation of undetected corrupt data.
公开/授权文献
- US5038682A Electronic device 公开/授权日：1991-08-13
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