Last night we had a disk failure in our of our storage arrays which caused some issues with a few servers and some of the file shares. We restarted the servers affected which included the remote desktops this morning. The cluster was then rebooted and a file system check was performed on /scratch/home at 12:00 to check for any errors. All systems we back to normal from 1pm. 

Apologies for any inconvenience caused.

Thanks

Joe