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High latency due to a bursty workload

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Category:
ontap-9
Specialty:
perf
Last Updated:

Applies to

ONTAP 9

Issue

  • High latency is seen in Data Processing (CPU D-blade) or Disk layer (Disk IO or WAFL Susp CP)
  • Throughput on reads or writes may be low, yet latency is high
  • Concurrency is also high
  • Active IQ Unified Manager may report the following alert:

2 volumes slow due to bursts of write requests causing contention at the data processing component on node CPU_dblade

 

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