SAA had a problem with its file servers this morning for 20 minutes at 6:20 AM. The problem caused outages for zoofiles, the web farm housing www.uvm.edu and other sites, and zoo.
We suspect that software updates installed during the night caused our NFS servers to be unable to renew their credentials, so NFS filesystems failed on clients. We are investigating further to find the root of the problem and avoid it in the future.
We apologize for the disruption in service.
Systems Architecture and Administration
Enterprise Technology Services
University of Vermont