there are 2 different accounts
1. named accounts
2. student accounts for courses, like studnnn, nnn = 3 digits

Monday, 2025-09-22 data of student accounts will be moved to temporary folder
                   accounts of students will be deleted
Monday, 2025-09-29 data of student accounts will be deleted
                   first runs of file systeem checks
Monday, 2025-10-06 starting of maintenance
                   ssh access will be disabled
                   updating/rebooting management servers, storage servers
                   updating nvidia drivers
                   updating shared file system
                   updating images
                   ....
Friday, 2025-10-10 end of maintenance, end will be announced via email to tcml-users

between Monday, 2025-09-29 and Friday, 2025-10-10 account applications will be rejected