Advance warning of scheduled systems work and downtime

Upcoming work in July:

July 23^rd, nvidia5 & nvidia6 relocation: these GPU servers have now been relocated to the ICT CAGB data centre, joining nvidia4 and nvidia8 already there, but are awaiting delivery of some cables before the installation can be completed. When this has been completed the 10 Gbit/s GPU network will be relocated as well as the clustor4 storage server.

Late July, NextGen HPC: following the campus power failure on May 27^th the NextGen cluster is unusable; fixing this will take some time and there is only one portable screen & keyboard trolley in the data centre which is often in use by others. However, demand for this HPC is currently low and taking into consideration the cluster is due for its bi-annual update/upgrade in late summer/early autumn of this year, we have decided to do this now, rebuilding each node from scratch rather than doing an in-situ upgrade and then spending time dealing with the inevitable issues caused by legacy software still on the cluster.

No other work is scheduled for the forseeable future.