We will be shutting down the various departmental machines starting on Monday at 4pm with the client machines. The servers will be brought down later (between 5pm and 10pm). During the power shutdown there will be no wired network access to or from the department until the power is restored and various servers are restarted.
The departmental servers coxeter, sphere, and the mail, web, and blog/wiki servers will have software updates applied on Wednesday afternoon, June 6, 2012 which will require rebooting (most servers will be unavailable starting at 4:15pm). Since some updates will be applied while the servers are still up there may be some temporary issues with some software. We hope that any such issues will be minor and by doing most of the upgrading before bringing systems down the shorter downtime will be worth the potential minor problems. Please restart any programs if you observe problems during the upgrades (and please let us know at requests@math.toronto.edu, so we can investigate). We expect the systems to be back up by 5:00pm.