[downtime] CS Building Power Outage, Monday, March 13, 2023,

Date: Monday, March 13, 2023 (22:00-02:00)

Who is affected:
ALL users and occupants of the CS Building (35 Olden St) and Friend Center

What is happening:
From 22:00 (10PM) until 02:00 (2AM) on the night of Monday, March 13, 2023,
ALL power to the Computer Science building and the Friend Center will be
cut.

Emergency generator power will remain, so emergency lighting and the
building network will remain powered. ALL OTHER POWER will be off. It is
VERY IMPORTANT that all equipment, including that in labs and in Room 002,
be powered off on Monday evening prior to the shutdown. This includes
computers, printers, copiers, or anything else that runs on electricity.
Sensitive equipment will further benefit from being unplugged or physically
switched off in order to avoid any effects from possible fluctuations in
power quality during the work.

Why is it happening:
In August of 2022, a sprinkler head in the basement power vault opened,
flooding the main power feeds for the building with water and causing
damage to a main breaker. Since that time, the building has been operating
on a single breaker from a redundant set while the damaged breaker was sent
away for repairs. This outage will be used to re-install the repaired
breaker and return the building to normal operating status. Until this
repair is completed, the building power is more vulnerable than usual to a
long-term outage in the event the single remaining breaker is compromised.

We will post updates to the status page: http://www.csstaff.org
as necessary.

Note that this outage DOES NOT affect the CS computing infrastructure,
which is housed in the Forrestal Campus data center. All departmental
computing and network services are expected to continue unaffected.

If you have questions or concerns about this outage, please contact
csstaff@cs.princeton.edu immediately, so we can discuss options to reduce
any negative impact. Your patience is appreciated.

Sincerely,
CS Staff
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