| Start | End | What System/Service is affected | What is happening? | What will be affected? | Contact Person | Status |
|---|
| 2021-12-09 0800 | 2021-12-09 0900 | All IDDS services | IDDS Postgres and Ruby on Rails upgrades | All IDDS services | tolbert@illinois.edu | |
| 2021-12-09 0900 | 2021-12-09 1000 | Bastion Hosts (Production group A) | Patching out of cycle | Systems unavailable during reboot | help+security@ncsa.illinois.edu | |
| 2021-12-10 0700 | 2021-12-10 1500 | iForge | InfiniBand switch maintenance | All systems unavailable | iforge-admin@lists.ncsa.illinois.edu | |
| 2021-12-10 0900 | 2021-12-10 1000 | Bastion Hosts (Production group B) | Patching out of cycle | Systems unavailable during reboot | help+security@ncsa.illinois.edu | |
| 2021-12-20 | 2021-12-24 | Facility UPS | Replace UPS batteries | All systems with facility UPS feed | rantissi@illinois.edu | |