FAS Research Computing - Monthly maintenance May 4th 2026 9am-1pm – Maintenance details

Holyoke Tier 2 NFS experiencing partial outage

Status page for the Harvard FAS Research Computing cluster and other resources.

Cluster Utilization (VPN and FASRC login required): Cannon | FASSE


Please scroll down to see details on any Incidents or maintenance notices.
Monthly maintenance occurs on the first Monday of the month (except holidays).

GETTING HELP
Documentation: https://docs.rc.fas.harvard.edu | Account Portal https://portal.rc.fas.harvard.edu
Email: rchelp@rc.fas.harvard.edu | Support Hours

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Monthly maintenance May 4th 2026 9am-1pm

Completed
Scheduled for May 04, 2026 at 1:00 PM – 5:00 PMUTC

Affects

Cannon Cluster

Under maintenance from 1:00 PM to 5:00 PM

SLURM Scheduler - Cannon

Under maintenance from 1:00 PM to 5:00 PM

Cannon Compute Cluster (Holyoke)

Under maintenance from 1:00 PM to 5:00 PM

Boston Compute Nodes

Under maintenance from 1:00 PM to 5:00 PM

GPU nodes (Holyoke)

Under maintenance from 1:00 PM to 5:00 PM

seas_compute

Under maintenance from 1:00 PM to 5:00 PM

Updates
  • Completed
    May 04, 2026 at 5:00 PMUTC
    Completed
    May 04, 2026 at 5:00 PMUTC
    Maintenance has completed successfully
  • Update
    May 04, 2026 at 2:56 PMUTC
    Update
    May 04, 2026 at 2:56 PMUTC

    The scheduler is re-opened and jobs un-paused. Other, non-impacting, work continues.

  • In progress
    May 04, 2026 at 1:00 PMUTC
    In progress
    May 04, 2026 at 1:00 PMUTC
    Maintenance is now in progress
  • Planned
    May 04, 2026 at 1:00 PMUTC
    Planned
    May 04, 2026 at 1:00 PMUTC

    FASRC monthly maintenance will take place on May 4th 2026. Our maintenance tasks should be completed between 9am-1pm.

    NOTICES:

    • Annual data center power downtime: The annual downtime at MGHPCC will take place June 15 - June 18. This year's downtime will be one day longer. More details will be sent to all users next month.

    • Training: Upcoming training from FASRC and other sources can be found on our Training Calendar. at https://www.rc.fas.harvard.edu/upcoming-training/

    • Status Page: You can subscribe to our status to receive notifications of maintenance, incidents, and their resolution at https://status.rc.fas.harvard.edu/ (click Get Updates for options).

    MAINTENANCE TASKS

    Cannon cluster will be paused during this maintenance?: YES
    FASSE cluster will be paused during this maintenance?: YES

    • Slurm 25.11.5 Upgrade

      • Audience: All cluster users

      • Impact: Jobs will be paused during the upgrade

    • Reboot remaining stuck nodes from power outage

      • Audience: N/A

      • Impact: No visible impact to user

    • Two-Factor/OpenAuth (two-factor.rc.fas.harvard.edu) replacement

      • Audience: All account holders

      • Impact: The server will be unavailable during maintenance. You will be unable to obtain a new or replacement OpenAuth token during this period.

    • Domain controller replacement

      • Audience: Internal

      • Impact: End users should not see any impact

    • OOD/Open OnDemand reboots

      • Audience: All OOD users, reboot of the head nodes

      • Impact: Running sessions will not be affected

    • Login node reboots

      • Audience; All login node users

      • Impact: Login nodes will reboot during the maintenance window

    • Netscratch 90-day retention cleanup

      • Audience; All netscratch users

      • Impact: Files older than 90 days will be removed per our scratch policy. Please note that this cleanup can happen at any time, not just during maintenance.

    Thank you,
    FAS Research Computing
    https://docs.rc.fas.harvard.edu/
    https://www.rc.fas.harvard.edu/

For issues not shown here, please contact FASRC via
https://portal.rc.fas.harvard.edu or email rchelp@rc.fas.harvard.edu