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ONTAP Select 自动 NDU 在节点 MUM 上暂停

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适用于

  • ONTAP Select
  • 从  9.16.1 升级到 9.17.1P5 的自动化无中断升级（ANDU）

问题

  • 在自动 ONTAP 升级期间，该过程暂停并显示以下警报和错误消息 (EMS.log)：
upgrademgr.update.pausedErr:error]: The automated update of the cluster has been paused due to the following reason:
callhome.andu.pausederr:alert]: params: {'subject': 'AUTOMATED NDU PAUSED ON NODE: MUM'}
  • 同时，数据卷达到了临界容量级别：
monitor.volume.full:alert:Volume "volname" is full (using or reserving 99% of space).
  • 我们可以观察到高延迟/节流：
dev.driver.throttling:notice]: mpt driver unit 3 throttling I/O requests due to long latency
intr: ems.engine.suppressed:debug]: Event 'dev.driver.throttling'.
device.latency.threshold:notice]: The device latency in microseconds exceeded the threshold value for device "xx" The threshold is "25000", execution latency is "64009"

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