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How to troubleshoot and resolve FabricPool Performance issues or "measured latency from cloud" alerts

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ontap-9
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Perf
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Applies to

  • ONTAP 9.2+
  • FabricPool

Issue

  • Users may report slow performance when accessing data blocks that have been moved to the capacity tier when using FabricPool in ONTAP 9.
  • EMS messages may be logged such as this example:

Tue Sep 03 10:21:14 MDT [nodename1: TimerCallback: wafl.ca.latency.threshold:notice]: Measured latency from cloud (10024 msec) more than threshold (1000 msec) (aggregate: "agggr01", aggregate uuid: "12345678-1234-1234-1234-1234567890ab", object store: "store1")

  • Latency between 5 and 10 seconds detected when using FabricPool alert such as below

AIQ ARS wafl.ca.latency.threshold.png

 

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