High disk latency on FlexArray system
Applies to
- Data ONTAP 8
- ONTAP 9
- FlexArray
Issue
- Backend E-series or other FC disks presented to ONTAP as LUN's reporting high latency and impacting performance
- Back to back Consistency Points
- The following event is seen in event log:
[slifc_intrd: mlm.excessive.TPlatency:notice]: Average latency of 250527us on target port 20430080e54704b8, has exceeded 250000us