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
2026-05-26 @ 00:00 to 2026-05-28 @ 23:59 BST	Planned maintenance on networking infrastructure to improve network and internet connectivity performance.	Isambard-AI Phase 1, Isambard-AI Phase 2, Isambard 3	No service outage is expected, but brief interruptions to internet access are possible.	If you experience any connectivity issues, please wait a few minutes and try again.
2026-06-01 @ 00:00 to 2026-06-05 @ 23:59 BST	Planned update to management systems.	Isambard-AI Phase 1	Isambard-AI Phase 1 will be offline and unavailable during this period.
2026-06-03 @ 13:00 to 17:00 BST	BlueCrystal 5 Early Access maintenance session	BlueCrystal 5 Early Access	A reservation will prevent jobs from running during the maintenance session. Jobs submitted that cannot complete before the reservation starts will be held until the reservation is released. Connectivity to the login node may be interrupted during the maintenance session.
2026-06-09 @ 09:00 to 17:00 UTC+1	System and datacenter maintenance.	Isambard 3 Grace and MACS	Access to the cluster will disabled and maintenance reservation on compute nodes will stop jobs from running.