发明名称 Method for increasing file system availability via block replication
摘要 According to one embodiment, a method is disclosed herein that includes creating a flashcopy of initial replica data, performing a recovery of the created flashcopy, and exporting the recovered flashcopy. In one implementation, the method includes determining whether the initial replica data has changed data, generating an updated flashcopy based on the determination, sequentially quiescing an export of the recovered flashcopy, switching the recovered flashcopy with the updated flashcopy, and exporting the switched flashcopy. In another implementation, the method includes determining whether to reexport a new flashcopy, creating a flashcopy of updated replica data, recovering the flashcopy of the updated replica data, exporting the current recovered flashcopy of the updated replica data, replacing the previously exported recovered flashcopy based on the exportation of the current recovered flashcopy, and deleting the previously exported recovered flashcopy based on the exportation of the current recovered flashcopy.
申请公布号 US7487386(B2) 申请公布日期 2009.02.03
申请号 US20050093521 申请日期 2005.03.30
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 EVERHART CRAIG F.;SARKAR SOUMITRA
分类号 G06F11/00 主分类号 G06F11/00
代理机构 代理人
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