We must perform maintenance in both CBC computer server rooms starting at 6:00 p.m. this coming Friday, 17-Jan, and ending by midnight that evening.  Because we will load-test the UPS units in both NW2109 and SL2097, customers should expect total loss of connectivity to all file, print, and web services during this time.  We strongly suggest that you close all open files, checkpoint batch and long interactive compute jobs, and log off before 6:00 p.m. on Friday.

List of tasks to be performed during this maintenance period:

• Security updates on all servers
• Load testing of all UPS units in NW2109 and SL2097 to find failing batteries
• Addition of several new storage elements to serve VSphere and Linux