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High disk latency on remote plex and errors on ISL port channel

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Category:
metrocluster
Specialty:
perf
Last Updated:

Applies to

  • ONTAP 9
  • MCC-IP

Issue

  • Elevated write latencies [300ms]
  • Prolonged consistency points (CP's) with B2B
  • Write latency from random disks from remote plex
  • No session issues or remote disk problems
  • MCDC shows ISL port channel drops QoS-4 tx packets

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