MicroK8S disk read/write usage

I was thinking that server is slow because of lack of the disk, from curiosity did install iotop, after starting it, and clicking right arrow fiew times, i was 5-6 influx processes, each reading approx megabyte per second

microk8s kubectl get po --all-namespaces | grep influx

it was used as a storage for grafana, so decided to revut it

kubectl -n kube-system get deployment monitoring-influxdb-grafana-v4
kubectl -n kube-system rollout restart deployment monitoring-influxdb-grafana-v4

and just in few minutes everything wnt normal

and, sudo iotop