发明授权
US07975171B2 Automated file recovery based on subsystem error detection results
失效
基于子系统错误检测结果的自动文件恢复
- 专利标题: Automated file recovery based on subsystem error detection results
- 专利标题(中): 基于子系统错误检测结果的自动文件恢复
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申请号: US12204475申请日: 2008-09-04
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公开(公告)号: US07975171B2公开(公告)日: 2011-07-05
- 发明人: Nils Haustein , Ulf Troopens , Rainer Wolafka
- 申请人: Nils Haustein , Ulf Troopens , Rainer Wolafka
- 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
- 代理商 Roy W. Truelson
- 优先权: EP07116171 20070912
- 主分类号: G06F11/00
- IPC分类号: G06F11/00
摘要:
The present invention provides a method and system for performing file recovery in a computer system coupled to a storage subsystem, wherein a data scrubbing process analyzes said storage subsystem for potential or existing storage errors. The method includes: receiving a report from said data scrubbing process describing said errors, including logical block addresses (LBAs) of storage locations containing errors; interacting with a file system created on logical unit numbers (LUN) provided by said storage subsystem in order to identify file information pertaining to the erroneous LBAs; moving the file pertaining to said erroneous LBAs to a different storage location; updating pointers to said file; in case of an unrecoverable, accessing a backup copy of said file from a backup location; if a predetermined degree of error severity is exceeded, creating an additional copy of said file; and updating the pointers to said file managed by the file system, respectively.