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SnapMirror 关系报告准备关系状态

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状态信息

适用场景

  • ONTAP 9
  • SnapMirror
  • SnapVault
  • 统一复制
  • 存储虚拟机灾难恢复( SVM DR )

问题描述

  • XDP SnapMirror或SVM DR反向重新同步 所需时间远远超过预期
  • 传输速度似乎非常慢、发送到目标的数据量也很低
  • snapmirror show  或者、ONTAP System Manager会在很长时间内报告SnapMirror关系状态为"正在准备"

ClusterA::> snapmirror show
                                     Progress
Source        Destination  Mirror  Relationship   Total       Last
Path      Type  Path      State   Status      Progress  Healthy Updated
-----------  ----  ------------ ------- -------------- --------- ------- --------
svmSource:volSource
       XDP   svmDest:volDest
                 Snapmirrored
                    Preparing    98.17GB  true   01/01 12:00:00

  • 之后,卷和 SVM 复制关系 都可能会经历长时间的准备状态 snapmirror resync
  • 典型更新操作相比,准备操作可能运行的时间更长,并且似乎传输的数据更多
  • 在完成准备操作时、 snapmirror resync 卷SnapMirror或SVM DR的发生原因 速度会变慢。

 

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