Date: Wednesday, May 31, 2023 (08:00-10:00)
Who is affected:
All users of CS Department computing facilities and services, including cycles, ionic, web services, email, DNS, and wired networking.
What is happening:
During this window, the core switch handling CS Department network traffic at the HPCRC will be replaced. The actual outage time for any particular service or network access point should be only a few seconds, and the total outage window is likely to be shorter than announced. However, owing to the uncertain nature of technological change, outages may occur throughout this window and may be up to several minutes in length.
Why is it happening:
This upgrade will replace a 12-year-old core switch with a new, much faster device. This is the first stage of more upgrades upcoming this Summer, primarily focused on increasing network capacity for the ionic HPC cluster, the Department’s central storage cluster, and other related systems.
We will post updates to the status page: www.csstaff.org as necessary.
If this downtime will cause you undue hardship, please contact csstaff@cs.princeton.edu immediately, so we can discuss options to reduce any negative impact. Your patience is appreciated.
Sincerely,
CS Staff