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Increased write latency due to increased WAFL hole punching (block freeing) behavior

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23
Visibility:
Public
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0
Category:
ontap-9
Specialty:
perf
Last Updated:

Applies to

ONTAP 9

Issue

  • Higher than expected write latency
  • qos statistics volume latency show output has majority of latency in the data column
  • Workload involving copy offload, deletion, or vMotion occurring at the same time as the write latency

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