During Inter-Semester break, on Thursday 2 February between 09:00 and 13:00, we will be placing the cluster into maintenance mode whilst we perform failover tests between the pair of master nodes and BeeGFS node couplets.
These tests will ensure that pairs of master nodes and BeeGFS node couplets are in good working order should an unexpected system issue occur that triggers a system failover.
While the system failovers are being tested, all users will be able to access data from /home and /beegfs, but you may notice a momentary freeze while the storage areas are transferred between the failover pairs. All compute nodes will be placed into a scheduler reservation to prevent any workloads from running while these tests are carried out.
Sorry for the short notice of this announcement, I hope this will not cause too much disruption for anyone.