High HostOS CPU utilization due to problems with secd
Applies to
- Clustered Data ONTAP 8.3
- ONTAP 9
Issue
- Sudden or gradual increase in CPU utilization
- Unexplained and prolonged spikes in CPU utilization
- Running
sysstat -M
shows utilization in HostOS domain compared to other domains - On each of the affected nodes, running
set diag -c off; systemshell -node nodename ps aux
, confirms secd is the top consumer of HostOS resources. - Higher than expected NAS Protocol latency
- Authentication request timeouts may be present