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FASRC monthly maintenance will take place Monday July 7th, 2025 from 9am-1pm

NOTICES

• ​New Quota tool available (/usr/local/sbin/quota) - Works on all filesystem types (home directory, lustre, isilon, netscratch, etc.)
  Type quota -h to see the full instructions for usage o visit the usage doc.

• 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:​ Juneteenth - ​T​hur. June 19​ / Independence Day - Fri​. July 4

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

• Slurm Upgrade to 24.11.5

  • Audience: All cluster users

  • Impact: Jobs and the scheduler will be paused during this upgrade

• Login node ​OS ​upgrades

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

  • Impact: All login nodes will ​upgraded ​and unavailable during this maintenance window

• ​Start of cluster OS upgrades - July 7 -10

  • Audience: All cluster users

  • Impact: Over 4 days, July 7 through 10, we will upgrade the OS on 25% of the cluster each day. During that time, total capacity will be reduced across the cluster by 1/4 each day. This will require draining each sub-set of nodes ahead of time. 

• Netscratch 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/

Cluster OS upgrades - July 7 -10

• Audience: All cluster users

• Impact: Over 4 days, July 7 through 10, we will upgrade the OS on 25% of the cluster each day.
  During that time, total capacity will be reduced across the cluster by 1/4 each day.
  This will require draining each sub-set of nodes ahead of time. 

Work begins during the July 7th maintenance (login nogdes will be upgraded during the 7/7 maintenance window) and will continue through July 10th.

Additional details and a breakdown of each phase: 2025 Compute OS Upgrade

The yearly power downtime at our Holyoke data center, MGHPCC, has been scheduled. 
This year's power downtime will take place on Tuesday June 3, 2025. 

This will require FASRC to begin shutdown of our systems beginning at 9AM on Monday, June 2nd.
We have worked to reduce the total outage time this year.
We will begin power-up on Wednesday June 4th with an expected return to full service by 9AM Thursday June 5th.

• Monday June 2nd -  Power-down begins at 9AM

• Tuesday June 3rd - Power out at MGHPCC

• Wednesday June 4th - Maintenance tasks and then power-up begins

• Thursday June 5th - Expected return to full service by 9AM

Maintenance:
During this downtime, Holylabs (/n/holylabs) will move to new hardware.
Starfish, Coldfront, and the Portal will be unavailable during the downtime.

For more details including a graphical timeline, please see: https://www.rc.fas.harvard.edu/events/2025-mghpcc-power-downtime/

Updates will be posted here on our status page: https://status.rc.fas.harvard.edu/
Note that you can subscribe to receive updates as they happen. On the status page, click Get Updates.

Notices and reminders will also be sent to all users via our mailing lists.