Sometimes it is necessary for the Computer Officers to temporarily make a service unavailable in order that maintenance may be performed. Where possible, we will announce such downtime two weeks in advance to cms-all (covers those in CMS) and maths-users (to which people with a maths linux login are automatically subscribed). In general, we shall make our best efforts to schedule downtime outside of the core working day.
Your attention is also drawn to the UIS vulnerable periods.