Operating Status

Percent Utilization over the past 24 hours (Red Cloud)

Status and Downtime Notices

• Downtime for regular Web server maintenance will occur the Wednesday following the second Tuesday of every month.
• Only one e-mail will be sent per downtime, to all project members.
• Information concerning completion of the work or extension of the downtime will be posted on this page.

WHY: Red Cloud will be offline to perform annual firmware updates on its network switch on WEDNESDAY, JULY 9, between 4 and 6 am. While the network switch is being patched and rebooted, all running instances and storage (including attached volumes) will be disconnected from the network and become unreachable. The disruption is expected to around 15 minutes.

 

WHAT WILL BE AFFECTED?

  • All Red Cloud Instances
  • CAC main web site, CAC Portal, linuxlogin, CAC Amazon and Wasabi S3 Connector Globus collections will be offline starting at 9 pm on Tuesday, July 8, 2025.

RECOMMENDED ACTIONS:

  • CAC recommends users to shelve all running instances prior to the start of the maintenance window at 4 am on Wednesday, July 9, and unshelve the instance after 6 am to resume your work. This will ensure the integrity of your data.
  • If you leave instances running, disk I/O will be suspended by the operating system when the attached volumes become unreachable during the maintenance window, and should resume automatically when the network connectivity is restored. The operating system might mark the volumes as read-only during this process. Users should check their running instances after the maintenance window to make sure they are running normally. If a running instance crashes or ends up with read-only file systems, rebooting the instance in the Horizon web console should resolve the problem.

STATUS: Downtime status will be posted on this page.

QUESTIONS: https://portal.cac.cornell.edu/help.

REASONS: To apply June 2025 security patches (Windows and Linux)

WHO WILL BE AFFECTED? Users of CAC managed resources housed in Rhodes Hall

WHAT WILL BE UNAVAILABLE WHILE THEY ARE PATCHED AND REBOOTED?

  • Servers: Linuxlogin, Mysql2, RT, Winlogin
  • Storage: storage04 will be migrated from old hardware into a Red Cloud v2 instance
  • https://www.cac.cornell.edu/

WHAT WILL NOT BE AFFECTED THIS MONTH?

  • Linux Clusters: Aclab, AIDA, Altas, CapeCrystal, Cayuga, CommCloud, Cqmetrics, Hopper, Marvin, Marx1, Mbot, Pool, Tardis3, Yuegroup
  • Red Cloud
  • Archival Storage

STATUS: Downtime status will be posted.

QUESTIONS: https://www.cac.cornell.edu/help/

NEXT SCHEDULED MAINTENANCE: Wednesday, July 9th, 2025

REASONS: To apply May 2025 security patches (Windows and Linux)

WHO WILL BE AFFECTED? Users of CAC managed resources housed in Rhodes Hall

WHAT WILL BE UNAVAILABLE WHILE THEY ARE PATCHED AND REBOOTED?

WHAT WILL NOT BE AFFECTED THIS MONTH?

  • Linux Clusters: Aclab, AIDA, Altas, CapeCrystal, Cayuga, CommCloud, Cqmetrics, Hopper, Marvin, Marx1, Mbot, Pool, Tardis3, Yuegroup
  • Red Cloud
  • Archival Storage

STATUS: Downtime status will be posted.

QUESTIONS: https://www.cac.cornell.edu/help/

NEXT SCHEDULED MAINTENANCE: Wednesday, June 11th, 2025

REASONS: To apply April 2025 security patches (Windows and Linux)

WHO WILL BE AFFECTED? Users of CAC managed resources housed in Rhodes Hall

WHAT WILL BE UNAVAILABLE WHILE THEY ARE PATCHED AND REBOOTED?

WHAT WILL NOT BE AFFECTED THIS MONTH?

  • Linux Clusters: Aclab, AIDA, Altas, CapeCrystal, Cayuga, CommCloud, Cqmetrics, Hopper, Marvin, Marx1, Mbot, Pool, Tardis3, Yuegroup
  • Red Cloud
  • Archival Storage

STATUS: Downtime status will be posted.

QUESTIONS: https://www.cac.cornell.edu/help/

NEXT SCHEDULED MAINTENANCE: Wednesday, May 13th, 2025

SCIENTIFIC COMPUTING TRAINING WEBINARS: https://its.weill.cornell.edu/scientific-computing-training-series

REASONS: To apply March 2025 security patches (Windows and Linux)

WHO WILL BE AFFECTED? Users of CAC managed resources housed in Rhodes Hall

WHAT WILL BE UNAVAILABLE WHILE THEY ARE PATCHED AND REBOOTED?

WHAT WILL NOT BE AFFECTED THIS MONTH?

  • Linux Clusters: Aclab, AIDA, Altas, CapeCrystal, Cayuga, CommCloud, Cqmetrics, Hopper, Marvin, Marx1, Mbot, Pool, Tardis3, Yuegroup
  • Red Cloud
  • Archival Storage

STATUS: Downtime status will be posted.

QUESTIONS: https://www.cac.cornell.edu/help/

NEXT SCHEDULED MAINTENANCE: Wednesday, April 9th, 2025

SCIENTIFIC COMPUTING TRAINING WEBINARS: https://its.weill.cornell.edu/scientific-computing-training-series

REASONS: To apply February 2025 security patches (Windows and Linux)

WHO WILL BE AFFECTED? Users of CAC managed resources housed in Rhodes Hall

WHAT WILL BE UNAVAILABLE WHILE THEY ARE PATCHED AND REBOOTED?

WHAT WILL NOT BE AFFECTED THIS MONTH?

  • Linux Clusters: Aclab, AIDA, Altas, CapeCrystal, Cayuga, CommCloud, Cqmetrics, Hopper, Marvin, Marx1, Mbot, Pool, Tardis3, TheCube, Yuegroup
  • Red Cloud
  • Archival Storage

STATUS: Downtime status will be posted.

QUESTIONS: https://www.cac.cornell.edu/help/

NEXT SCHEDULED MAINTENANCE: Wednesday, March 12th, 2025

SCIENTIFIC COMPUTING TRAINING WEBINARS: https://its.weill.cornell.edu/scientific-computing-training-series

REASONS: To apply January 2025 security patches (Windows and Linux)

WHO WILL BE AFFECTED? Users of CAC managed resources housed in Rhodes Hall

WHAT WILL BE UNAVAILABLE WHILE THEY ARE PATCHED AND REBOOTED?

WHAT WILL NOT BE AFFECTED THIS MONTH?

  • Linux Clusters: Aclab, AIDA, Altas, CapeCrystal, Cayuga, CommCloud, Cqmetrics, Hopper, Marvin, Marx1, Mbot, Pool, Tardis3, TheCube, Yuegroup
  • Red Cloud
  • Archival Storage

STATUS: Downtime status will be posted.

QUESTIONS: https://www.cac.cornell.edu/help/

NEXT SCHEDULED MAINTENANCE: Wednesday, February 12th, 2025

REASONS: To apply December 2024 security patches (Windows and Linux)

WHO WILL BE AFFECTED? Users of CAC managed resources housed in Rhodes Hall

WHAT WILL BE UNAVAILABLE WHILE THEY ARE PATCHED AND REBOOTED?

WHAT WILL NOT BE AFFECTED THIS MONTH?

  • Linux Clusters: Aclab, Altas, CapeCrystal, Cayuga, CommCloud, Cqmetrics, Hopper, Marvin, Marx1, Mbot, Pool, Tardis3, TheCube, Yuegroup
  • Red Cloud
  • Archival Storage

STATUS: Downtime status will be posted.

QUESTIONS: https://www.cac.cornell.edu/help/

NEXT SCHEDULED MAINTENANCE: Wednesday, January 15, 2025

Ithaca campus lost power around noon on Friday, November 22, 2024 CAC systems staff will be addressing affected servers/clusters when we hear the power is back and stable. More announcements to follow.

REASONS: To apply November 2024 security patches (Windows and Linux)

WHO WILL BE AFFECTED? Users of CAC managed resources housed in Rhodes Hall

WHAT WILL BE UNAVAILABLE WHILE THEY ARE PATCHED AND REBOOTED?

WHAT WILL NOT BE AFFECTED THIS MONTH?

  • Linux Clusters: Aclab, Altas, CapeCrystal, Cayuga, CommCloud, Cqmetrics, Hopper, Marvin, Marx1, Mbot, Pool, Tardis3, TheCube, Yuegroup
  • Red Cloud
  • Archival Storage

STATUS: Downtime status will be posted.

QUESTIONS: https://www.cac.cornell.edu/help/

NEXT SCHEDULED MAINTENANCE: Wednesday, December 11, 2024

Announcement: Red Cloud 2 is launching November 25th, 2024. Watch for an email with migration details.