INFORMATION PROCESSOR, INFORMATION PROCESSING SYSTEM AND PROGRAM
To provide an information processor that prevents latest data of a first server from being replaced with old data of a second server so as to suppress data loss.SOLUTION: When a first server recovers from a stop into an operational system, a determination unit of a second server determines whether o...
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Format | Patent |
Language | English Japanese |
Published |
03.06.2021
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Abstract | To provide an information processor that prevents latest data of a first server from being replaced with old data of a second server so as to suppress data loss.SOLUTION: When a first server recovers from a stop into an operational system, a determination unit of a second server determines whether or not mirroring is incomplete before the stop and corresponding data update is not been reflected in the second server. Then, when the determination unit determines that the slice is not a slice whose mirroring is incomplete before the stop, an execution unit of the second server copies the slice data to the first server.SELECTED DRAWING: Figure 4
【課題】第1サーバの最新データが第2サーバの古いデータに置き換えられることを防ぎ、データロストを抑止すること。【解決手段】第1サーバが停止から運用系に復旧する際に、第2サーバの判定部が、停止前にミラーリングが未完了で、第2サーバにおいて当該データ更新が未反映であるスライスであるか否かを判定する。そして、停止前にミラーリングが未完了であるスライスでないと判定部により判定されると、第2サーバの実行部が、スライスのデータを第1サーバにコピーする。【選択図】図4 |
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AbstractList | To provide an information processor that prevents latest data of a first server from being replaced with old data of a second server so as to suppress data loss.SOLUTION: When a first server recovers from a stop into an operational system, a determination unit of a second server determines whether or not mirroring is incomplete before the stop and corresponding data update is not been reflected in the second server. Then, when the determination unit determines that the slice is not a slice whose mirroring is incomplete before the stop, an execution unit of the second server copies the slice data to the first server.SELECTED DRAWING: Figure 4
【課題】第1サーバの最新データが第2サーバの古いデータに置き換えられることを防ぎ、データロストを抑止すること。【解決手段】第1サーバが停止から運用系に復旧する際に、第2サーバの判定部が、停止前にミラーリングが未完了で、第2サーバにおいて当該データ更新が未反映であるスライスであるか否かを判定する。そして、停止前にミラーリングが未完了であるスライスでないと判定部により判定されると、第2サーバの実行部が、スライスのデータを第1サーバにコピーする。【選択図】図4 |
Author | TAKAOCHI KANAME FUKUDA SHINICHIRO NONAKA TAKASHI |
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Snippet | To provide an information processor that prevents latest data of a first server from being replaced with old data of a second server so as to suppress data... |
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SubjectTerms | CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS |
Title | INFORMATION PROCESSOR, INFORMATION PROCESSING SYSTEM AND PROGRAM |
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