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An Oracle database experiences a drop in io for over 15-30 minutes in ONTAP volumes

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Category:
ontap-9
Specialty:
perf
Last Updated:

Applies to

  • ONTAP 9
  • iSCSI (unknown if NFS is impacted)
  • Oracle Database
  • Amazon FSx for NetApp ONTAP

Issue

  • Oracle encounters an issue where i/o stops for over 15 minutes.
  • Storage latency is in milliseconds when monitored from CLI, Data Infrastructure Insights, Harvest, or other storage monitoring.
  • The database comes online after that period like nothing happened.

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