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Read, write and other latency spikes

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Category:
ontap-9
Specialty:
perf
Last Updated:

Applies to

ONTAP 9

Issue

  • High latency spikes for one or all of the following:
    • Read
    • Write 
    • Other operations (WAFL Susp CP, CPU, D blade,  delay center etc.)
  • Potentially accompanied by long CPs messages in the EMS log

Example:

[?]  Wed Dec 18 12:08:28 +0100 [XXXXXXXXXX:wafl_exempt02: wafl.cp.toolong:error]: Aggregate XXXX experienced a long CP]

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