During the maintenance window, Top Hat may be unavailable and visitors will see a maintenance page. Any educator who has made an assignment due during or shortly after the maintenance window should consider changing the due date/time so that students have adequate time to complete them.

ITS Enterprise Infrastructure will be patching network switches in the Lindquist Center data center as part of January's infrastructure day. These patches are to address problems that were identified back in October. The patches will require reboots of the switches that will result in the following Research Services systems having a 10-15 minute network outages over the course of the maintenance window. 

Argon HPC:

Impact will be specifically to access LSS shares or running jobs from the impacted LSS shares below. 

IDAS

Large Scale Storage:

lc-rs-storage12.hpc.uiowa.edu
lc-rs-storage13.hpc.uiowa.edu

The Top of Rack (TOR) network switches in the Lindquist Center (LC) Room 14 datacenter will be upgraded.

The Data Center Hosting team has identified devices lacking network redundancy at the TOR level. Those device systems/service owners have been contacted in a separate email, including a meeting invitation (and expectation) to attend the Infrastructure Day bridge event on Saturday morning.

For devices with TOR or alternate networking redundancy at the device level, there will be no interruption of service.

Due to backend storage being unavailable, the mirrors service will be offline during Infrastructure Day 

Network Engineering Services will be upgrading the campus wired infrastructure. During this upgrade, wired and wireless connectivity will be down.

SiteNow's hosting provider will be performing maintenance from 11pm - 7am on the dates affected. Some applications may experience a temporary interruption of service.

Maintenance reference: #6947