May 23, 2015
Services Affected (avoid these during the window)
Research and compute servers (e.g. BLiSS)
Unix-based file servers (clio and thalia)
Services Not Affected (common services that users often ask about)
Google Apps (Gmail, Doc, Sites)
Active Directory File storage (Home, Shared, Project folders)
CLA Windows Terminal Server (WTS, also known as cla-ts and freya)
perform routine maintenance tasks which will require rebooting most servers.
Deploy environment modules and make additional software available.
UNIX home directories will be migrated to different storage (nfs.umn.edu). No user-visible change expected other than performance and capacity improvements, and users will not need to change how they access and use the storage.
Some other shared areas will be moved to nfs.umn.edu as well. No user-visible changes are expected.
What is a "system maintenance window"?
In order to correct a technical issue, install a security patch, or upgrade server hardware, LATIS must occasionally disrupt normal networked services. Whenever possible, we plan such service outages in advance during times that minimize the disruption to our users.
Can I work during the maintenance window?
In general, LATIS recommends that you avoid using the affected services during the maintenance window. Systems may be available during the maintenance window, but they can and will be shut down without warning and may be unavailable for hours at a time. So, use only at your own risk.
Can't this be done without disrupting service?
Certain tasks require server reboots and/or physically unplugging electricity. We do our best to group these tasks together to minimize the number of outages we schedule each year--which is generally less than five.
Can you reschedule this window to a more convenient time?
LATIS strives to select times that minimize disruption. It isn't possible to pick a time that will not affect somebody. We also have to consider the availability of our staff and central OIT staff who run the data centers and networks. We try to soften the impact by announcing maintenance windows well in advance.
How do I find out more?
What is LATIS?
Starting May 8th, 2015, CLA-OIT will be known as Liberal Arts Technologies and Innovation Services or LATIS, for short. The new name more accurately describes the group's continued and purposeful expansion into the College-specific services that are central to achieving the CLA Roadmap, including supporting all aspects of the CLA student experience and the pursuit of research excellence and creative production.