Dear cluster users,
on 17 April 2024, we will carry out a complete maintenance of the cluster. The following points will be processed during maintenance
* new kernel so that the user namespaces can be reactivated, see also [1]
* update of the Infiniband stack of CLAIX23 to stabilise and improve performance
* migration of the HPCWORK directory from lustre18 to the new storage lustre22, see also [2]. In the last few weeks we have started to migrate all HPCWORK data to a new file system. In this maintenance we will perform the last step of the migration. HPCWORK will not be available during this maintenance.
* migration of the old JupyterHub system to a new one
During this maintenance work, the login systems and the batch system will not be available. It is expected that the login systems will reopen in the early morning.
We do not expect the maintenance to last all day, but expect the cluster to open earlier. However, HPCWORK will most likely not be available at this time, the migration must be completed first. Jobs that rely on HPCWORK will complain that they cannot find files. You must therefore stop such jobs and resubmit them at a later date.
[1] https://maintenance.itc.rwth-aachen.de/ticket/status/messages/14/show_ticket/8929
[2] https://maintenance.itc.rwth-aachen.de/ticket/status/messages/14/show_ticket/8960
With kind regards,
Your HPC Team
You can track any disruptions or security advisories that may occur due to the aforementioned change in the Email category on our status reporting portal.
