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SnapMirror 关系报告“ SnapMirrored ”状态后,基准才会完成

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适用于

  • ONTAP 9
  • SnapMirror

说明

症状

  • SnapMirror 关系在对所有源卷数据和快照进行初始基准复制传输之前报告“ SnapMirrored ”镜像状态。
  • 例如,当初始化使用 5 TB 的源卷时、关系会在移动后报告“ SnapMirrored ”镜像状态、如 SnapMirror show 命令中所示:


CLUSTERB::> snapmirror show
                                                   Progress
Source            Destination   Mirror     Relationship    Total          Last
Path        Type   Path       State      Status       Progress   Healthy   Updated
-----------     ----    ------------   -------     --------------   ---------  -------   --------
svmprod:volprod   XDP    svmdr:voldr   Snapmirrored  Transferring    27GB     false    07/08 11:01:52

  • 此外、位于目标控制器上的 /etc/log/snapmirror_audit 中的 SnapMirror 审核日志还会报告一个已完成的初始化操作、该操作的字段小于预期的 bytes_TRANSFERTED 字段。

Mon Jul 8 08:31:34 EDT 2019 Initialize[Jul 8 08:31:34]:01234567-0123-0123-0123-01234567890a Operation-Uuid=01234567-0123-0123-0123-01234567890a Group=none Operation-Cookie=0 action=Start source=svmprod:volprod destination=svmdr:voldr

Mon Jul 8 08:35:57 EDT 2019 Initialize[Jul 8 08:31:34]:01234567-0123-0123-0123-01234567890a Operation-Uuid=01234567-0123-0123-0123-01234567890a Group=none Operation-Cookie=0 action=End source=svmprod:volprod destination=svmdr:voldr status=Success bytes_transferred=26602694388 network_compression_ratio=1.0:1 transfer_desc=Logical Transfer with Storage Efficiency - Optimized Directory Mode Note=Scheduled update operation is queued.

  • 即使关系未定义计划、也会立即执行 ScheduledUpdate 操作。ScheduledUpdate 操作会报告要从源传输的剩余快照。

Mon Jul 8 08:35:57 EDT 2019 ScheduledUpdate[Jul 8 08:31:34]:01234567-0123-0123-0123-
01234567890a Operation-Uuid=01234567-0123-0123-0123-01234567890a Group=none OperationCookie=0 action=Start source=svmprod:volprod destination=svmdr:voldr

Mon Jul 8 08:35:57 EDT 2019 ScheduledUpdate[Jul 8 08:31:34]:01234567-0123-0123-0123-
01234567890a Operation-Uuid=01234567-0123-0123-0123-01234567890a Group=none OperationCookie=0 action=Transfer_snapshots (1 of 1 log entries): daily.2019-07-07_0010,weekly.2019-07-07_0015,daily.2019-07-08_0010,hourly.2019-07-08_0305,hourly.2019-07-08_0405,hourly.2019-07-08_0505,hourly.2019-07-08_0605,hourly.2019-07-08_0705,hourly.2019-07-
08_0805,snapmirror.01234567-0123-0123-0123-01234567890a_0123456789.2019-07-08_083134

  • 当使用 mirrorallsnapshots SnapMirror 策略时、 SnapMirror 类型 - XDP 关系上会发生这种情况。您可以通过运行以下命令检查 SnapMirror 和 SnapMirror 策略的使用类型snapmirror show -fields type,policy:这是 ONTAP 9.3 和 9.4 中的默认关系类型和 SnapMirror 策略。
  • SnapMirror 类型 - 使用 mirrorallsnapshots SnapMirror 策略的 XDP 关系在成功复制源卷中的第一个快照后报告“ SnapMirrored ”镜像状态。其余快照将使用 SnapMirror 更新操作进行传输,该操作内置为针对这些 SnapMirror 关系进行初始化操作。在成功结束此更新操作之前、不应将源卷的基准视为已完成。

 

 

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