发明名称 |
Method and system for efficient write journal entry management for a distributed file system |
摘要 |
The present invention is directed to a method and system for efficient write journal entry management maintaining minimum write journal information stored in a nonvolatile memory through utilizing an additional structure in a fast volatile memory. The method and system may manage write journaling of a file volume including multiple fixed sized regions and assign a persistent 1-bit synchronization status (the write journal information) to each data region. In addition, a non-persistent I/O counter (the additional structure) for each region to manage the persistent 1-bit synchronization status during run-time. The present invention may provide a mechanism to determine when write I/O operations have not successfully completed to a specific region of the file volume.
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申请公布号 |
US8458238(B2) |
申请公布日期 |
2013.06.04 |
申请号 |
US20040973478 |
申请日期 |
2004.10.26 |
申请人 |
SOULIER PAUL E.;BESMER BRAD D.;NETAPP, INC. |
发明人 |
SOULIER PAUL E.;BESMER BRAD D. |
分类号 |
G06F12/00;G06F3/00;G06F5/00;G06F17/30 |
主分类号 |
G06F12/00 |
代理机构 |
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地址 |
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