FAS Research Computing - Notice history

System Under Maintenance

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

The colors shown in the bars below were chosen to increase visibility for color-blind visitors.
For higher contrast, switch to light mode at the bottom of this page if the background is dark and colors are muted.
Under maintenance

SLURM Scheduler - Cannon - Under maintenance

Cannon Compute Cluster (Holyoke) - Under maintenance

Boston Compute Nodes - Under maintenance

GPU nodes (Holyoke) - Under maintenance

seas_compute - Under maintenance

Under maintenance

SLURM Scheduler - FASSE - Under maintenance

FASSE Compute Cluster (Holyoke) - Under maintenance

Under maintenance

Kempner Cluster CPU - Under maintenance

Kempner Cluster GPU - Under maintenance

Operational

FASSE login nodes - Operational

Operational

Cannon Open OnDemand/VDI - Operational

FASSE Open OnDemand/VDI - 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

May 2026

MGHPCC power work - Part 2 May 18
Scheduled for May 18, 2026 at 11:00 AM – 11:00 AM
  • Update
    May 18, 2026 at 11:00 AM
    Update
    May 18, 2026 at 11:00 AM

    Our Holyoke data center, MGHPCC, will be doing power work on Row 8A. This work, which is being completed over the course of 2 weeks, will bring online another power feed which will increase power capacity.

    In order to do this work, it will require us to idle half the nodes in 8a for the duration of the week. This means all partitions in this row will be at half capacity. Existing jobs should drain naturally and no job should need to be canceled.

    The impacted partitions are:

    arguelles_delgado_h100
bigmem
bigmem_intermediate
blackhole_gpu
dvorkin
eddy
enos
gershman
gpu
gpu_h200
gpu_requeue
hejazi
hernquist_ice
hoekstra
hsph
hsph_gpu
huce_ice
iaifi_gpu_requeue
intermediate
itc_cluster
itc_gpu
janson_sapphire
joonholee
jshapiro
kempner
kempner_priority
kempner_dev
kempner_eng
kempner_h200_priority
kempner_h100
kempner_h100_priority
kempner_h100_priority2
kempner_h100_priority3
kempner_h100_priority4
kempner_interactive
kovac
kozinsky
kozinsky_gpu
kozinsky_requeue
murphy_ice
mweber_compute
mweber_gpu
olveczky_sapphire
ortegahernandez_ice
rivas
sapphire
seas_compute
siag
siag_combo
test
yao
yao_priority
zhuang
  • Planned
    May 18, 2026 at 11:00 AM
    Planned
    May 18, 2026 at 11:00 AM

    Rescheduled to May 18

MGHPCC power work - Part 1 May 11
Scheduled for May 11, 2026 at 11:00 AM – 11:00 AM
  • In progress
    May 11, 2026 at 11:00 AM
    In progress
    May 11, 2026 at 11:00 AM
    Maintenance is now in progress
  • Update
    May 11, 2026 at 11:00 AM
    Update
    May 11, 2026 at 11:00 AM

    Rescheduled to May 11

  • Planned
    May 11, 2026 at 11:00 AM
    Planned
    May 11, 2026 at 11:00 AM

    Our Holyoke data center, MGHPCC, will be doing power work on Row 8A. This work, which will occur this week and next week, will bring online another power feed which will increase power capacity.

    In order to do this work, it will require us to idle half the nodes in 8a for the duration of the week. This means all partitions in this row will be at half capacity. Existing jobs should drain naturally and no job should need to be canceled.

    The impacted partitions are:

    arguelles_delgado_h100
bigmem
bigmem_intermediate
blackhole_gpu
dvorkin
eddy
enos
gershman
gpu
gpu_h200
gpu_requeue
hejazi
hernquist_ice
hoekstra
hsph
hsph_gpu
huce_ice
iaifi_gpu_requeue
intermediate
itc_cluster
itc_gpu
janson_sapphire
joonholee
jshapiro
kempner
kempner_priority
kempner_dev
kempner_eng
kempner_h200_priority
kempner_h100
kempner_h100_priority
kempner_h100_priority2
kempner_h100_priority3
kempner_h100_priority4
kempner_interactive
kovac
kozinsky
kozinsky_gpu
kozinsky_requeue
murphy_ice
mweber_compute
mweber_gpu
olveczky_sapphire
ortegahernandez_ice
rivas
sapphire
seas_compute
siag
siag_combo
test
yao
yao_priority
zhuang
www.rc.fas.harvard.edu is back up
  • Resolved
    Resolved
    www.rc.fas.harvard.edu is back up. This incident was resolved automatically.
  • Investigating
    Investigating
    www.rc.fas.harvard.edu is down at the moment. This incident was created automatically.
Monthly maintenance May 4th 2026 9am-1pm
  • Completed
    May 04, 2026 at 5:00 PM
    Completed
    May 04, 2026 at 5:00 PM
    Maintenance has completed successfully
  • Update
    May 04, 2026 at 2:56 PM
    Update
    May 04, 2026 at 2:56 PM

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

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

    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/

Starfish maintenance
  • Completed
    May 01, 2026 at 9:00 PM
    Completed
    May 01, 2026 at 9:00 PM
    Maintenance has completed successfully
  • In progress
    May 01, 2026 at 8:00 PM
    In progress
    May 01, 2026 at 8:00 PM
    Maintenance is now in progress
  • Planned
    May 01, 2026 at 8:00 PM
    Planned
    May 01, 2026 at 8:00 PM

    Starfish will be upgraded to the latest version on Friday, May 1st from 4pm-5pm. The service and dashboard will be down during this time.

Apr 2026

OpenOnDemand maintenance
  • Completed
    April 30, 2026 at 2:00 PM
    Completed
    April 30, 2026 at 2:00 PM
    Maintenance has completed successfully
  • In progress
    April 30, 2026 at 12:00 PM
    In progress
    April 30, 2026 at 12:00 PM
    Maintenance is now in progress
  • Planned
    April 30, 2026 at 12:00 PM
    Planned
    April 30, 2026 at 12:00 PM

    At 8am on Thursday April 30th we will be upgrading from Open OnDemand version 4.0.7 to 4.1.4 on both the Cannon and FASSE clusters.

    This is not expected to impact running jobs.

    This upgrade adds the Jobs->Project Manager menu item and fixes an issue that affected access to the Clusters->Shell Access menu item when using Firefox.

login.rc.fas.harvard.edu is responding normally
  • Resolved
    Resolved
    \[login.rc.fas.harvard.edu\](http://login.rc.fas.harvard.edu) is responding normally. This incident was automatically resolved.
  • Investigating
    Investigating
    login.rc.fas.harvard.edu is not responding normally. This incident was automatically created.
Login and OOD node access restricted due to serious security issue - No ETA
  • Resolved
    Resolved

    The cluster has been rebooted and all nodes, including login and OOD, have been patched.

    The scheduler is re-opened and jobs which were preempted/requeued have priority for re-scheduling.

    Some non-standard, lab-owned nodes may still require patching. The owners of these machines may be contacted about this.

    Thank you for your patience. This is a global issue and is being addressed at centers everywhere.

  • Update
    Update

    To mitigate this exploit we will need to restart -all nodes- on the cluster.

    This will begin at 1PM and run until all nodes have restarted (no ETA).

    This will mean any un-finished jobs will be terminated. There is no way to avoid this.

    We will then be validating the fix before re-opening the login. OOD nodes, and scheduler.

    Next steps and updates will be posted here.

  • Update
    Update

    We are developing a plan of attack to mitigate this exploit. Please know that this is a very serious issue and so we are treating it as such. Thank you for your understanding.

    We are currently awaiting further information from the Redhat/Fedora/Rocky community but building a plan in the meantime with the information we have. More details to follow as we can share them.

    If you need to access storage (except scratch and home directories), Globus is still online and available. But again, login nodes and OOD are not available.

  • Identified
    Identified

    Due to a serious in-the-wild exploit which can compromise Fedora-based Linux distributions including Rocky, which is used on the cluster, we need to restrict access. All login and OOD nodes are shut down until a fix can be put in place. Jobs running on the cluster will continue running.

    No ETA, There is not fix at this time. We will update our status page in the morning once we have more information or a fix to roll out.

    This is a serious exploit and we do not take this measure lightly. Please follow this status page for updates and eventual resolution.

holylfs06 down
  • Resolved
    Resolved

    Holylfs06 is accessible again.

    This incident has been resolved.

  • Identified
    Identified
    Holylfs06 storage is down. We are investigating. More details as they are known.
Website security maintenance (www.rc and docs.rc) 4-28-26 1pm
  • Completed
    April 28, 2026 at 5:16 PM
    Completed
    April 28, 2026 at 5:16 PM

    Website maintenance has completed successfully.

  • In progress
    April 28, 2026 at 5:00 PM
    In progress
    April 28, 2026 at 5:00 PM
    Maintenance is now in progress
  • Planned
    April 28, 2026 at 5:00 PM
    Planned
    April 28, 2026 at 5:00 PM

    Security updates are required for www.rc.fas.harvard.edu and docs.rc.fas.harvard.edu
    This work will take place today between 1pm and 2pm
    Both sites will be down for very short periods during the updates.

Mar 2026

Scheduler is degraded
  • Resolved
    Resolved

    This incident has been resolved. The scheduler is running normally.

  • Investigating
    Investigating

    The scheduler is in a degraded state due to thrashing
    We are actively working to resolve this problem.

two-factor.rc.fas.harvard.edu (openauth) error
  • Resolved
    Resolved

    This incident has been resolved. two-factor.rc.fas.harvard.edu is working normally again.

  • Investigating
    Investigating

    We are currently investigating this incident. Requesting a new token or re-requesting your token from two-factor is not currently working.

The web front end to two-factor.rc.fas.harvard.edu is currently not allowing logins, generating new tokens is currently unavailable
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating
    We are currently investigating this incident.
Network issues - Cluster degraded
  • Resolved
    Resolved

    This incident has been resolved by draining and rebooting any nodes with stuck mounts.

  • Monitoring
    Monitoring

    Mounts to Holyoke Isilon (specifically /n/sw) are broken on numerous nodes across the cluster. We have a check rolling out to find these nodes so we can remediate them individually. Until remediated the cluster will be in a degraded state. Running jobs may randomly die or fail as they hit nodes that have stale mounts.

    It will be risky to run jobs for the next hour and then, after that point, the cluster will have a large number of nodes closed waiting for them to drain so we can reboot them and fix the mounts.

    At this time we are unaware of any holy-isilon problems other than the effect this had on cluster nodes/running jobs. We will update should we identify any data storage concerns.

  • Identified
    Identified

    Mounts to Holyoke Isilon (specifically /n/sw) are broken on numerous nodes across the cluster. We have a check rolling out to find these nodes so we can remediate them individually. Until remediated the cluster will be in a degraded state. Running jobs may randomly die or fail as they hit nodes that have stale mounts.

    It will be risky to run jobs for the next hour and then, after that point, the cluster will have a large number of nodes closed waiting for them to drain so we can reboot them and fix the mounts.

  • Investigating
    Investigating

    A network issue affecting storage critical to the cluster is It's causing instability. The cluster is currently in a degraded state as a result. We are looking into the problem. Updates to follow..

ColdFront is down.
  • Resolved
    Resolved

    Cold front is back up. Thank you for your patience.

  • Identified
    Identified

    ColdFront is down. We are working to bring it back up. The instance got replaced last night, but it had trouble configuring itself on the way up again.

Mar 2026 to May 2026

Next

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