Columbia University Information Technology

Service Alerts


Service Impact: 
Alert Date: 
08/17/2014 - 08:00am to 08/17/2014 - 10:00am
Outage Type: 
Planned Maintenance
Main Content
Alert Message: 

UPDATE: This maintenance was completed at 9:45AM without incident. 

 CUIT will perform F5 LTM Load Balancer maintenance on Sunday, August 17th from 8am to 10am. During this maintenance the F5 LTM software will be patched and system failover will be tested.

Disruption to most applications is expected to be minimal. For web applications, users may receive a momentary error and need to reload the page. Applications that depend on persistent connections may experience additional disruption.

Please contact your service support teams if you are concerned about the impact on your sites or 

Services that depend on the F5 LTM network load balancer include the following:

LDAP -- affects many other services
CAS and Shibboleth Authentication -- including UNI login to Lionmail, ServiceNow, Rascal and many other applications and services
CUIT's Wordpress infrastructure
CUIT's Drupal infrastructure and hosted sites/applications
CUIT's Lamp infrastructure and hosted sites/applications
CCIT Web Site
Libraries Web Sites
SIPA Web Sites
Identity & Access Management apps (DIA, uniapp, webphoto, password status, account management)
NINJa web interface -- including the printing dollars replenishment and quota check tools

For questions about this event, please contact the CUIT Helpdesk at, or call 212-854-1919.

To see all active and future Service Alerts, please visit