The following behavior is observed in Acronis Cyber Infrastructure (ACI) cluster:
1. Alerts "Node is offline" suddenly appear for all nodes in a cluster for a short period of time. During this time, status of the Storage is displayed as 'Unavailable' per WebCP dashboard.
2. Cluster is displayed as 'Healthy' when checking status of the cluster via CLI.
3. No any real interruptions of storage services are noticed while these alerts appear.
4. Cluster version is below 3.5.4-24.