发明授权
- 专利标题： Failure recovery method in information processing system and information processing system
- 专利标题（中）： 信息处理系统和信息处理系统中的故障恢复方法
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申请号： US13056527申请日： 2010-12-14
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公开(公告)号： US09043637B2公开(公告)日： 2015-05-26
- 发明人: Nobuyuki Saika
- 申请人： Nobuyuki Saika
- 申请人地址： JP Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Mattingly & Malur, P.C.
- 国际申请： PCT/JP2010/007254 WO 20101214
- 国际公布： WO2012/081050 WO 20120621
- 主分类号： G06F11/00
- IPC分类号： G06F11/00 ; G06F11/14 ; G06F17/30
摘要：
Services are promptly resumed at the time of a failure recovery in an information processing system. Before a first server system 3a resumes service during the failure recovery, a second server system 3b sends the first server system 3a directory images of directories of a highest-level tier to a predetermined lower-level tier out of data of files stored in a second storage apparatus 10b, and the first server system 3a restores the directory images in a first storage apparatus 10a. When the request is transmitted from the first server system 3a, the second server system 3b reads an additional directory image from the second storage apparatus 10b and transmits the additional directory image to the first server system 3a. If a re-stubbing occurrence frequency is equal to or higher than a predetermined threshold, the second server system 3b suppresses transmission of directory images to the first server system 3a.
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