FAS Research Computing - Notice history

All systems operational

Status page for the Harvard FAS Research Computing cluster and other resources.
WINTER BREAK: Harvard and FASRC will be closed for winter break as of Sat. Dec 21st, 2024. We will return on Jan. 2nd, 2025. We will monitor for critical issues. All other work will be deferred until we return.

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
https://docs.rc.fas.harvard.edu | https://portal.rc.fas.harvard.edu | Email: rchelp@rc.fas.harvard.edu

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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

Login Nodes - Boston - Operational

Login Nodes - Holyoke - Operational

FASSE login nodes - Operational

Operational

Cannon Open OnDemand/VDI - Operational

FASSE Open OnDemand/VDI - Operational

Operational

Netscratch (Global Scratch) - Operational

Holyscratch01 (Pending Retirement) - Operational

Home Directory Storage - Boston - Operational

HolyLFS06 (Tier 0) - Operational

HolyLFS04 (Tier 0) - Operational

HolyLFS05 (Tier 0) - Operational

Holystore01 (Tier 0) - Operational

Holylabs - Operational

BosLFS02 (Tier 0) - Operational

Isilon Storage Boston (Tier 1) - Operational

Isilon Storage Holyoke (Tier 1) - Operational

CEPH Storage Boston (Tier 2) - Operational

Tape - (Tier 3) - Operational

Boston Specialty Storage - Operational

Holyoke Specialty Storage - Operational

Samba Cluster - Operational

Globus Data Transfer - Operational

bosECS - Operational

holECS - Operational

Notice history

Dec 2024

Cluster Partially Degraded
  • Resolved
    Resolved
    Jobs have cleared overnight and a fix for the high load appears to be working. We will monitor for any recurrence, but all appears well at this time.
  • Investigating
    Investigating

    Low priority jobs are not getting scheduled despite being at the top of the queue. We are currently investigating this incident and have reached out to SchedMD regarding this.

    See https://support.schedmd.com/show_bug.cgi?id=21627 

NESE tape maintenance Dec. 11, 2024
  • Completed
    December 11, 2024 at 10:00 PM
    Completed
    December 11, 2024 at 10:00 PM
    Maintenance has completed successfully
  • In progress
    December 11, 2024 at 1:00 PM
    In progress
    December 11, 2024 at 1:00 PM
    Maintenance is now in progress
  • Planned
    December 11, 2024 at 1:00 PM
    Planned
    December 11, 2024 at 1:00 PM

    From Harvard University RC:

    NESE is scheduling a hardware repair for 12/11 to one of disk cache management servers for NESE Tape.

    The scheduled repair will not interrupt the Tape service, but you will likely experience performance degradation in interacting with the archive on 12/11 during the maintenance.

    This maintenance will not affect the NESE Disk service.

Slurm Scheduler high load
  • Resolved
    Resolved
    The scheduler load has returned to normal. A root cause was identified and remediated.
  • Identified
    Identified
    The scheduler is experiencing a high load at the moment which may manifest as slowness, timeout or general instability for job scheduling. We are actively working to mitigate this.
FASRC monthly maintenance - Monday December 2nd, 2024 7am-11am
  • Completed
    December 02, 2024 at 4:00 PM
    Completed
    December 02, 2024 at 4:00 PM
    Maintenance has completed successfully
  • Update
    December 02, 2024 at 12:52 PM
    In progress
    December 02, 2024 at 12:52 PM

    Due to an urgent network issue which requires a restart of some network hardware, all jobs will need to be paused.

    Interactive jobs and the ability to write to some storage may be interrupted.

  • In progress
    December 02, 2024 at 12:00 PM
    In progress
    December 02, 2024 at 12:00 PM
    Maintenance is now in progress
  • Planned
    December 02, 2024 at 12:00 PM
    Planned
    December 02, 2024 at 12:00 PM

    FASRC monthly maintenance will occur Monday December 2nd, 2024 from 7am-11am

    IMPORTANT NOTICES

    • holyscratch01 will be set to read-only during this maintenance and will be decommissioned February 1, 2025. Please move any needed scratch data to netscratch and begin using it instead if you have not done so already. The global $SCRATCH variable will be changed to /n/netscratch

    • FASRC will be switching to the Harvard ServiceNow ticket system on Dec. 2nd. Our email addresses remain the same and no action is required on your part.
      Please do not re-open old/closed tickets after Dec. 2nd and instead create a new ticket.

    • Cannon cluster: serial_requeue and gpu_requeue will be set to allow MPI/multinode jobs. Such jobs need to be able to handle preemption/being requeued. 

    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).

    Upcoming holidays: Thanksgiving Nov. 28th and 29th. Winter break Dec. 23rd through January 1st 

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

    • Set /n/holyscratch01 scratch filesystem to read-only

      • Audience: All cluster users

      • Impact: Please adoptthe new scratch filesystem /n/netscratch prior to Dec. 2nd. The $SCRATCH variable will move to /n/netscratch during this maintenance
        Data on holyscratch01 will still be readable, but not writable, and will be fully decommissioned on Feb. 1, 2025.

    • Switch ticketing system to ServiceNow. Our email addresses remain the same.

      • Audience: All FASRC users

      • Impact: All new tickets will go to Harvard'sServiceNow,our email remains the same. Existing tickets will get moved any time someone replies.

      • NOTE: From Dec. 2nd on, please do not re-open any old tickets. Create a new one instead by emailing rchelp@rc.fas.harvard.edu

    • Login node reboots

      • Audience: Anyone logged into a FASRC Cannon or FASSE login node

      • Impact: Login nodes will rebooted during this maintenance window

    • Scratch cleanup ( https://docs.rc.fas.harvard.edu/kb/policy-scratch/ )

      • Audience: Cluster users

      • Impact: Files older than 90 days will be removed. Please note that retention cleanup can and does run at any time, not just during the maintenance window.

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

Nov 2024

holyscratch01 degraded
  • Resolved
    Resolved
    holyscratch01 is operational. These failing object stores will continue to cause issues. Please move your scratch data to /n/netscratch if you have not already. Holyscratch01 will be set READ-ONLY on Dec. 2nd. https://www.rc.fas.harvard.edu/blog/announcing-netscratch/
  • Investigating
    Investigating

    OST2b has wedged again. We are in the process of troubleshooting this incident.

holylfs06 stability issues
  • Resolved
    Resolved
    holylfs06 issues resolved.
  • Identified
    Identified
    We are working on an issue with holylfs06 Expect some instability or slowness.
Citrix (TMS/RCapps) down
  • Resolved
    Resolved
    Citrix/RCapps is up and working again.
  • Identified
    Identified
    rcapps.rc.fas.harvard.edu Citrix is down. We are investigating.
Globus - Boston collection unavailable
  • Resolved
    Resolved

    The transfer nodes for Boston globus are working again. We will follow up with the vendor for any additional information on root cause.

    Thanks you for your patience.

  • Identified
    Identified
    This issue has not yet been resolved. We have a ticket in with Globus and will update once we know more.
  • Investigating
    Investigating
    The Boston collection appears unavailable in Globus. We are investigating.
Netscratch - some directories stalled/unavailable
  • Resolved
    Resolved
    Netscratch is working normally. The vendor has collected logs and is determining next steps for prevention.
  • Identified
    Identified

    We are seeing a recurrence of this issue. We are working to determine the cause and resolution.

  • Resolved
    Resolved
    The instability has been identified and resolved. Netscratch has returned to normal, full operaiton.
  • Investigating
    Investigating
    We have reports that some directories in netscratch are unavailable or intermittent. We are working with Vast to determine the cause. This is a new filesystem which is under heavy load for cluster use as well as migration from holyscratch01. We appreciate your understanding of these teething pains and will update you as soon as we have more details or resolution.

Oct 2024

holyscratch01 OST2b issues
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating

    OST2b (one of the bricks that make up holyscratch01) has wedged again. We are in the process of troubleshooting.

holyscratch01 OST2b issues
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating

    OST2b on holyscratch01 (one of the bricks that makes up holyscratch01) is hung up. We are failing it over the rectify scratch performance issues.

holyscratch01 Instability
  • Resolved
    Resolved
    The instability has been resolved.
  • Identified
    Identified
    We are continuing to work on a fix for this incident.
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating
    We are currently investigating this incident.
holyscratch01 reboot
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating

    We are rebooting holyscratch01 to clear a stuck state.

holyscratch01 degraded
  • Resolved
    Resolved
    OST2b failed over
  • Monitoring
    Monitoring
    holyscratch01 - OST2b failing over

Oct 2024 to Dec 2024

Next

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