OIT Winter Shutdown Maintenance Schedule (12/23,12/27,12/28)

OIT will be hard at work over the Winter Shutdown performing maintenance and upgrades to prepare for the new year.  We have scheduled this to impact the fewest people.

Thursday, December 22nd starting at 5:15 PM we will upgrade the distribution switch for WCMA and Facilities, and a few residence halls, which will cause a 15 minute disconnect from the network.

Friday, December 23rd from 7:20 AM – 9:20 AM we will upgrade the other six distribution switches that feed the rest of campus.  Each upgrade takes about 15 minutes and the buildings on that switch will have no network connectivity during that time.   From 9:30-10:30 we will be working on core routing, and there will be short network disconnects of less than 1 minute.  At noon we will upgrade our Border routers, since they are redundant there should be no network disruption.

Tuesday, December 27th, 4:00 PM – 8:00 PM we will upgrade server switches in the data center.  Most servers are fully redundant so we do not expect disruption, but some will need their connection re-routed which will cause a 15-30 second network disconnect.

Wednesday, December 28th, 4:00 PM – 8:00 PM we will upgrade the firmware in some of our storage arrays.  We will shut down the Peoplesoft test and Alumni database servers during this period, but all other systems will remain available.

Many other maintenance activities will be done in addition to those listed above, which will cause no disruptions to the general community.  Any that may cause any disruptions specific to certain departments have been coordinated directly with those departments.

This work will NOT affect access to email, calendar, drive or other G-Suite apps (Google Apps for Education) from off-campus.

For more detailed information about the work we will be doing please visit the OIT web page at http://oit.williams.edu and look under announcements.

We do this to help get ready for the upcoming semester and to make sure everything is working well for our community.  As always, if this poses an issue for you or your department please contact me as soon as possible, we will help reduce the impact on your work.  Thank you,

 

Edward Nowlan
Director of Networks and Systems

Full Schedule:

Thursday, December 22

Distribution Switch Upgrade (15 minutes of no network connectivity)

5:15 PM – Lawrence Distribution


Chandler
Chapman Rink
Currier
Driscol
East
Facilities
Facilities North
Fayerweather
Fitch
Goodrich Hall
The Log
Lawrence
Prospect
Spencer Art
Weston Field

Friday, December 23

Distribution Switches Upgrades (15 minutes of no network connectivity)

7:20 AM – CTD Distribution

Bryant
Carter
CTD
Droppers
Faculty House
Gladden
Mark Hopkins
Sloan House
Woodbridge

7:40 AM – Williams Distribution

37 House
Bernhard
Children’s Center
Lehman Hall
Mears
Mears West
Paresky
Parking Garage
Sage Hall
Sears
Vogt
Williams Hall

8:00 AM – Armstrong Distribution

Mission Park (Armstrong,Dennett,Mills,Pratt)
Cole Field
Poker Flats
Pratt Bike Shed
Thompson Hall
Tyler
Tyler Annex

8:20 AM – Hollander Distribution


Dodd Annex
Dodd House
Goodrich House
Griffin, Hollander
Hopkins Hall
Hubbell House
Kellogg
Parsons
Sawyer
Schapiro
Sewall
Stetson
Thompson Chapel

8:40 AM – Jesup Distribution

Bronfman
Clark Hall
Hardy House
Jenness
Jesup Hall
Lambert
Lasell
Morgan Hall
Oakely Center
Rice House
Smith Rudnick
Susan B Hopkins
Unified Science Center (TPL, TCL, TBL, MSL, Schow)
West

9:00 AM – Spencer Distribution

ABC House
Agard
Bascom
Brinsmade
Brooks
CDE
Clark Art
Fort Hoosac
Garfield
Jewish Religious Center
Johnson
McGinnis
Miller
Horn Hall
Spencer
Thompson Health Center
Weston Hall
Woodhouse

Core Router Upgrades (short 30 seconds – 1 minute) network disruption

9:30 AM – 10:30 AM – We will transition 1 Subnet (Vlan) at a time, and during this transition, that IP range will lose connectivity for 30 seconds up to 1 minute

Internet Service Migration

12:00 PM – Border router upgrades (we have redundant equipment so this should have no down time

Tuesday, December 27th

4:00 PM – 8:00 PM – Core Server switches in Data Center will be upgrade, since most servers have redundant connections, we expect only short 10-30 second disruptions if we need to re-route any servers network feeds.

Wednesday, December 28th

4:00 PM – 5:30 PM – Storage Firmware upgrade, Peoplesoft test and Advance database servers will be taken offline during this upgrade, all other servers will stay up during this upgrade.