Where: Orono Data Center When: Apr 08, 2015 0500 Expected Duration: 1/2hr Scope: DC-wide Summary: This is a follow-up to the previous DC outage on March 11th. The cause was found to be a design flaw in the PSUs used for the Nexus 5500. The failed PSU was replaced immediately to ensure service availability. The remaining 3 of 4 PSUs for the Cisco Nexus pair will be replaced during this maintenance window in response to Cisco Field Notice FN 63893. This maintenance is not expected to be service-affecting, but due to the nature of the design flaw for the PSUs being replaced we are performing the swap within a maintenance window. More information can be found at: http://www.cisco.com/c/en/us/support/docs/field-notices/638/fn63893.html Networkmaine Contact Info: NOC 561-3587 Local/Campus Contact Info during this window of work: NONE / Unknown at this time