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Data Center infrastructure work can require extended outages for all services in the data center. Examples of such work include changes to our electrical, mechanical, network or firewall infrastructure. The most visible example of such work was the electrical work in June 2007 which required that we shut down the entire data center for several hours.

Identifying maintenance windows is difficult with our complex environment, varied stakeholders (academic, administrative, research, collegiate and departmental) and their diverse business cycles. Our goal is to identify specific windows during the year where we can schedule extended outages. Ideally, these windows would be identified well in advance, hopefully as part of our annual Campus IT planning cycle. We would only use the maintenance windows if necessary, and we would provide advance notification of our intent to use the maintenance window. As always we would minimize actual downtime.

2017 Data Center Maintenance Dates

The goal of four weeks’ advance notice for proposed changes will continue for 2017.

2016 Data Center Maintenance Dates

2015 Data Center Maintenance Dates

Support Articles

General Support Information

Current Status

There are currently no alerts.

Maintenance

Services scheduled for maintenance over the next 7 days. Please refer to the calendar view of alerts for a complete schedule.
There is currently no planned maintenance.

Past 90 Days

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Alert History

Start: 
Saturday, March 11, 2017 - 12:00am
End: 
Saturday, March 11, 2017 - 9:00am
Description

Scheduled work from midnight to 6:00AM: Apply changes to router control-plane policing and upgrade switch software

Data center(s): Information Technology Facility (ITF) and Lindquist Center (LC)

Expected impact on services: None

Contact Person: Jay Ford

 

Scheduled work from 6:00AM to 9:00AM: upgrade NetApp clusters

Data center(s): Information Technology Facility (ITF) and Lindquist Center (LC)

Expected impact on services: Each volume will experience two brief pauses in IO for 10 - 30 seconds each

Contact person: Mark Weber

Last updated: 
Saturday, March 11, 2017 - 9:00am
Start: 
Saturday, February 11, 2017 - 6:00am
End: 
Saturday, February 11, 2017 - 8:00am
Description

F5 Work:

Which data center(s) – Lindquist Center (LC) and Information Technology Facility (ITF)

Expected impact on services – none

Expected duration – 2 hours

Nature of the work – Upgrade the F5 GTM/DNS systems system software to stay current with releases, improve reliability, address security issues, and provide new features.

Work process - The F5 GTM/DNS systems provide the same DNS information. The ITF F5 GTM/DNS system will be upgraded first followed by the LC F5 GTM/DNS system. No service impact is expected.

Start: 
Saturday, January 14, 2017 - 6:00am
End: 
Saturday, January 14, 2017 - 9:00am
Description

Nature of work- Upgrade NetApp Clusters

Which data center(s)- Lindquist Center (LC) and Information Technology Facility (ITF)

Expected impact on services- Each volume will experience two brief (10-30 seconds) pauses in IO

Date and Time- Saturday, January 14, 2017 from 6:00 AM to 9:00 AM

 

Nature of work-  Upgrade the F5 LTM system software to stay current with releases, improve reliability, address security issues, and provide new features.

The F5 LTM systems are a redundant pair in LC and a redundant pair in ITF. The LC F5 LTM pair will be upgraded first as follows:

  1. Upgrade LC standby LTM
  2. Shift services from the LC primary LTM to the standby LTM
  3. Upgrade LC primary LTM
  4. Shift services from the LC standby LTM back to the primary LTM

The same process will be repeated with the F5 LTM pair in the ITF datacenter. No service impact is expected.

Expected impact on services- None

Which data center(s)- Lindquist Center (LC) and Information Technology Facility (ITF)

For additional information about this work, please see the Data Center Infrastructure Work for Saturday, January 14, 2017.

Last updated: 
Saturday, January 14, 2017 - 9:00am
Start: 
Saturday, November 19, 2016 - 4:00am
End: 
Saturday, November 19, 2016 - 9:00am
Description

Nature of the work: Upgrade the F5 chassis systems

Data Center(s): Lindquist Center (LC) and Information Technology Facility (ITF)

The F5 chassis systems host all F5 GTM/DNS and LTM systems in the following way:

ITF chassis 1 (ITF primary LTM, ITF GTM/DNS)

ITF chassis 2 (ITF secondary LTM)

LC chassis 1 (LC primary LTM, LC GTM/DNS)

Each chassis will be upgraded, one at time, resulting in the GTM/DNS and LTM systems hosted on the chassis being unavailable for a period of time.

The LTM systems are redundant and services will be moved between the primary and secondary systems as needed. The GTM/DNS systems are redundant and provide the same data. No more than one GTM/DNS and one LTM system will be unavailable at any time.

Expected impact on services: None

Expected duration: 2 hours in LC; 2 hours in ITF 

Time: 4:00 AM to 8:00 AM

 

Nature of the work: Upgrade NetApp clusters

Data Center(s): Lindquist Center (LC) and Information Technology Facility (ITF)

Expected impact on services: Each volume will experience two brief (10-30 seconds) pauses in IO

Time: 6:00 AM to 9:00 AM

For additional information about this work, please see the Data Center Infrastructure Work for Saturday, November 19, 2016.

Start: 
Saturday, October 8, 2016 - 4:00am
End: 
Saturday, October 8, 2016 - 8:00am
Description

Nature of the work: Upgrade the F5 GTM DNS systems (redundant systems in Lindquist Center and Information Technology Facility)

Which data center:  Lindquist Center (LC) and Information Technology Facility (ITF)

Expected impact on services: None

Work process: (1) Upgrade LC GTM; (2) Update ITF GTM. No service impact is expected.

For additional information about this work, please see the Data Center Infrastructure Work for Saturday, October 8, 2016.

Start: 
Sunday, September 11, 2016 - 12:00am
End: 
Sunday, September 11, 2016 - 8:00am
Description

First Upgrade:

Router software upgrade. The network router software upgrade is designed to be "in-service" with no impact to operations. Infrastructure Day is being utilized to be on the safe side.

Data center: Information Technology Facility (ITF)

Expected impact on services: none

Second and Third Upgrades:

Upgrade the F5 LTM systems (one redundant pair in LC and one redundant pair in ITF).

The Lindquist Center (LC) standby LTM will be upgraded first after which, the LC standby LTM will then take over load-balance functionality while the LC primary LTM is upgraded. Once the LC primary LTM is upgraded, load-balance functionality will move back from the standby to the primary. No LC service impact is expected.

The same process will be repeated with the F5 LTM pair in the ITF Data Center.

Data center: Lindquist Center (LC) and Information Technology Facility (ITF)

Expected impact on services: none

For additional information about this work, please see the Data Center Infrastructure Work for Sunday, September 11, 2016.

Start: 
Saturday, August 13, 2016 - 5:00am
End: 
Saturday, August 13, 2016 - 7:00am
Description

Nature of the work:  Router software upgrade.  The network router software upgrade is designed to be "in-service" with no impact to operations.  Infrastructure Day is being utilized to be on the safe side.

Which data center: Lindquist Center Facility (LC14)

Expected impact on services: none; should be an in-service upgrade

Expected duration: 2 hours

Start: 
Saturday, June 11, 2016 - 5:00am
End: 
Saturday, June 11, 2016 - 8:00am
Description

On Saturday, June 11, 2016 between 5:00 AM and 8:00 AM, ITS will:

Upgrade the two primary NetApp clusters

Which data center - ITF and the Lindquist Center Facility (LC14)

Expected impact on services - each volume will experience two brief pauses in IO (10 to 30 seconds each)

Expected duration - total cluster upgrade time is three hours

Please do not schedule major IT work on Saturday, June 11, 2016 between the hours of 5:00 AM and 8:00 AM.