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MCC-IP high latency from NVLOG_Transfer caused by network bandwidth measurement

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Category:
ontap-9
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perf
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Applies to

  • ONTAP 9.3 and later
  • MCC-IP

Issue

  • High latency from NVLog_Transfer
    • The high latency doesn't last long
    • Depending on the way to monitor the performance, high latency could be reported under the following Delay Centers: 
      • ONTAP CLI : NVRAM
      • AIQ UM : Data Processing
      • Harvest : NVLOG Mirroring
  • EMS reports Takeover Disabled & unsynchronized log

[<node1>: error] cf_main cf fsm takeoverByPartnerDisabled: local="<node1>" partner="<node2>" reason="unsynchronized log"

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