PCDS IT will upgrade psdb01/02/03/04 and pssql01/02 to Rocky 9 on Thursday, Dec 18th, starting at 9:00 a.m. This should take an estimated 8 hours and involves rebuilding the machines. This affects the elog/calibration and config databases/questionnaire/neocaptar and most data management applications. While it's likely that most of these applications will  be accessible and usable; it may be necessary to periodically shutdown the applications to make the upgrade smoother.