FAS Research Computing - Notice history

All systems operational

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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Operational

SLURM Scheduler - Cannon - Operational

Cannon Compute Cluster (Holyoke) - Operational

Boston Compute Nodes - Operational

GPU nodes (Holyoke) - Operational

seas_compute - Operational

Operational

SLURM Scheduler - FASSE - Operational

FASSE Compute Cluster (Holyoke) - Operational

Operational

Kempner Cluster CPU - Operational

Kempner Cluster GPU - Operational

Operational

FASSE login nodes - Operational

Operational

Cannon Open OnDemand - Operational

FASSE Open OnDemand - Operational

Operational

Netscratch (Global Scratch) - Operational

Home Directory Storage - Boston - Operational

Tape - (Tier 3) - Operational

Holylabs - Operational

Isilon Storage Holyoke (Tier 1) - Operational

Holystore01 (Tier 0) - Operational

HolyLFS04 (Tier 0) - Operational

HolyLFS05 (Tier 0) - Operational

HolyLFS06 (Tier 0) - Operational

Holyoke Tier 2 NFS (new) - Operational

Holyoke Specialty Storage - Operational

holECS - Operational

Isilon Storage Boston (Tier 1) - Operational

BosLFS02 (Tier 0) - Operational

Boston Tier 2 NFS (new) - Operational

CEPH Storage Boston (Tier 2) - Operational

Boston Specialty Storage - Operational

bosECS - Operational

Samba Cluster - Operational

Globus Data Transfer - Operational

Notice history

Jul 2026

FASRC monthly maintenance Monday July 6th, 2026 9am-1pm
Scheduled for July 06, 2026 at 1:00 PM – 1:00 PM
  • Planned
    June 26, 2026 at 1:45 PM
    Planned
    June 26, 2026 at 1:45 PM

    FASRC monthly maintenance will take place on July 6th 2026. Our maintenance tasks should be completed between 9am-1pm.

    Cannon cluster will be paused during this maintenance?: NO
    FASSE cluster will be paused during this maintenance?: NO

    NOTICES:

    • Friday July 3rd is a university holiday (independence Day observed)

    • 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).

    • We'd love to hear success stories about your or your lab's use of FASRC. Submit your story here.

    MAINTENANCE TASKS

    • Domain controller replacement

      • Audience: Internal

      • Impact: None. End users should not see any impact.

    • Reboot drained nodes in error state

      • Audience: Cluster nodes with errors.

      • Impact: These nodes will have been drained already in preparation. No impact on jobs on the day and the affected nodes will return to service in their respective partitions after the maintenance period.

    • 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/

Jun 2026

Cluster CVMFS issue causing node closure
  • Resolved
    Resolved

    This incident has been resolved. Less than 18 nodes remain in this state and will be cleaned up soon.

  • Monitoring
    Monitoring

    We have rolled out a fix and are currently monitoring the result.

    Any nodes still in Kill Task Fail will need to fully drain of running jobs first before being reopened to ensure there are no orphaned processes.

    PLEASE NOTE: This will take quite some time to fully resolve as jobs are still running on these nodes. But the nodes cannot accept new jobs until cleared.

    Currently # of potentially impacted nodes: 18 (of an original 600 - number will update periodically)

  • Investigating
    Investigating

    We are currently investigating this incident. Due to a CVMFS mount issue, some nodes are being closed and labelled as "Kill task fail"
    WIP

holylfs06 degraded
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating
    holylfs06 storage may be slow or unresponsive. We are investigating this issue.
2026 MGHPCC power downtime June 15-18, 2026
  • Completed
    June 18, 2026 at 9:15 PM
    Completed
    June 18, 2026 at 9:15 PM

    The yearly power downtime at our Holyoke data center, MGHPCC, has completed.

    The clusters and storage are back online and login nodes and OOD nodes are now available.

    If you have an issue/need help, please send a ticket to rchelp@rc.fas.harvard.edu with details.

    IMPORTANT NOTE: Tomorrow, June 19th is a university holiday. FASRC staff will return Monday to address any lingering issues and any new tickets.

  • Update
    June 18, 2026 at 8:45 PM
    Update
    June 18, 2026 at 8:45 PM

    Power-up is nearly complete, but a delay earlier in the day has us slightly behind.

    New ETA is 6PM.

  • Update
    June 18, 2026 at 12:16 PM
    Update
    June 18, 2026 at 12:16 PM

    MGHPCC has completed their maintenance and restored power to the facility.

    FASRC will now begin the power-up process. Please be aware that this takes several hours.

    We will update this status once complete.

    NOTE: A reminder that tomorrow (Friday) is a university holiday.

  • In progress
    June 15, 2026 at 1:00 PM
    In progress
    June 15, 2026 at 1:00 PM
    Maintenance is now in progress
  • Planned
    June 15, 2026 at 1:00 PM
    Planned
    June 15, 2026 at 1:00 PM

    The yearly power downtime at our Holyoke data center, MGHPCC, has been scheduled by the facility. This year's power downtime will take place on Tuesday June  15th - 18th, 2025.  There will be no June monthly maintenance as a result.

    Since the facility will be powered down for two days this year, we will not be performing the usual maintenance tasks. 
    That said, networking and other key infrastructure will be doing maintenance.

    IMPORTANT NOTE: FASRC storage at both Holyoke and Boston will be affected and should not be expected to be available throughout the downtime. Please plan ahead accordingly.

    • Monday June 15th -  Power-down begins at 9AM

    • Tuesday June 16th - Power out at MGHPCC

    • Wednesday June 17th - Power out at MGHPCC

    • Thursday June 18th - Expected return to full service by 5PM

    • Friday June 19th - Please note that June 19th is a university holiday

     

    Monday June 15th -  Power-down begins at 9AM Tuesday June 16th - Power out at MGHPCC Wednesday June 17th - Power out at MGHPCC Thursday June 18th - Expected return to full service by 5PM

    For more detailed information and follow-up, please see:
    https://www.rc.fas.harvard.edu/mghpcc-yearly-shutdown or this Status Page

holylfs06 degraded
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating

    Holylfs06 storage may be slow or unresponsive

    We are currently investigating this incident.

Portal unavailable
  • Resolved
    Resolved

    The Portal website should be accessible for all now.

    This incident has been resolved.

  • Investigating
    Investigating

    There is an SSL issue with the Portal which will cause an error for anyone attempting to connect.

    Investigating.

May 2026

Cannon cluster down
  • Resolved
    Resolved

    Slurm crashed on 4:30p on Friday due to a user running a large sacct query against the Slurm database. This caused the database host to run out of memory and crash the scheduler. To prevent this from reoccurring we are reducing the time range that users are permitted to query at one time to 7 days. Thus if you need to cover a month you would need to query in four 7 day increments.

    We do ask users to be judicious in their querying of the Slurm. Only ask for those fields that you require. Please also ensure any AI agents you have running limit their queries appropriately.

  • Identified
    Identified

    To temporarily stabilize the situation, we have reduced the maximum query time for sacct and other Slurm commands to be 1 day. We have filed a ticket with SchedMD to further analyze the issue.

    The cluster is back up and the scheduler is accepting new jobs.

    We will continue to monitor for emergencies over the weekend, and resume in-depth troubleshooting on Monday.

  • Investigating
    Investigating

    The Slurm scheduler is experiencing an error which is impacting jobs. The Cannon cluster will be inaccessible while we troubleshoot.

    We are currently investigating this incident.

Account approvals down
  • Resolved
    Resolved

    This incident has been resolved. Login is again available for approvals/onboarding.

  • Investigating
    Investigating

    Account approvals through Portal are not available at this time.

    We are currently investigating this incident.

FASRC VPN (Cambridge) is back up
  • Resolved
    Resolved
    FASRC VPN (Cambridge) is back up. This incident was automatically resolved by Instatus monitoring.
  • Investigating
    Investigating
    FASRC VPN (Cambridge) is down at the moment. This incident was automatically created by Instatus monitoring.
FASRC VPN (Cambridge) is back up
  • Resolved
    Resolved
    FASRC VPN (Cambridge) is back up. This incident was automatically resolved by Instatus monitoring.
  • Investigating
    Investigating
    FASRC VPN (Cambridge) is down at the moment. This incident was automatically created by Instatus monitoring.
FASRC VPN (Cambridge) is back up
  • Resolved
    Resolved
    FASRC VPN (Cambridge) is back up. This incident was automatically resolved by Instatus monitoring.
  • Investigating
    Investigating
    FASRC VPN (Cambridge) is down at the moment. This incident was automatically created by Instatus monitoring.

May 2026 to Jul 2026

Next

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