High CPU utilization with many concurrent 'block ownership' scanners
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ONTAP 8.1 7-Mode
Transition (TDP)replication from 7-mode to C-mode is slow.
- There are many background processes running such as:
NDMP, schedule snapshotsand
- WAFL scans are taking a lot of CPU time in wafl_exempt and causing delays for
"Kahuna"domain to run.
- The Kahuna is a
Serialized WAFLand on an average it is more than 80% utilized.