Planned Maintenance

Please see below for current and upcoming scheduled maintenance which may impact users of BriCS services and facilities.

If you are concerned about the impact of upcoming maintenance, or encounter unexpected issues you suspect are related to a maintenance event, please get in touch with the BriCS team.

Date and Time	Description	Services Affected	Expected Impact	Notes
2026-07-16 @ 09:00 to 17:00 BST	Cooling system maintenance requiring an engineer to enter the system to physically clean the coolers.	Isambard-AI Phase 2	An initial workload drain will stop all work and the system will be shut down while maintenance is carried out on the first cooler. As each cooler serves 50% of the machine, that half of the system will be returned to service once its cooler is complete, before work begins on the second cooler. The remaining nodes will be returned to service once the second cooler is complete. Login node access will be available throughout. Slurm access will be disrupted on several occasions during the initial shutdown phase; if you have issues managing jobs during this time, please wait and try again later. Work queued before the drain will resume once the system is returned to service.
Week commencing 2026-07-27 (exact date and times TBC) BST	Shutdown to enable power work to connect the National AI Data Facility.	Isambard-AI Phase 2	The system will be unavailable for one day during this week.	This work is still being planned and more timing information will be provided once the schedule is known.
Week commencing 2026-08-03 (exact date and times TBC) BST	Shutdown to enable power work to connect the National AI Data Facility.	Isambard-AI Phase 2	The system will be unavailable for one day during this week.	This work is still being planned and more timing information will be provided once the schedule is known.