High CPU utilization due to HostOS domain process OscLowPriThreadPool Last updated Save as PDF Share Share Tweet Share Views:38Visibility:PublicVotes:0Category:cloud-volumes-ontap-cvoSpecialty:cloudLast Updated: Applies to ONTAP 9. Cloud Volume ONTAP. Snapvault activity involving S3 object Store backup. Issue CPU utilization is constantly high 90-100%. Running "sysstat -M" shows utilization in HostOS domain compared to other domains.