A maintenance operation will be made on the cluster 'CVICLR01FC' in the CVI Service. This operation will affect 16 hypervisors hosting Virtual Machines in the Self-Service. The intervention will take place on February 23th between 18:00 and 21:00. Some of the VMs that are hosted in the cluster will be unavailable during the intervention, they will lose network connectivity (typically within 2 minutes). The owners of the affected VMs will receive a notification mail. From the VM perspective this intervention is therefore largely transparent. All affected Virtual Machines are expected to be back by 21:00.