On 22 June 2022 at 10 UTC the AA complex will become unavailable for essential hardware and software upgrades. You may continue to use the remaining available complexes AB complex for your interactive and batch workloads.
In order to minimise disruption in these situations when a complex is not available, we We strongly recommend all users to use the new generic hostnames for our Atos HPCF service instead of the specific complex login nodes. You may use hpc-login for interactive login access and hpc-batch for remote batch submission, which will always point to an available cluster
You have more information on how to connect to the Atos HCPF in HPC2020: How to connect.