FAS Research Computing - FASRC monthly maintenance April 6th 2026 9am-1pm – Maintenance details

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

NOTICES:

• 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

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

• two-factor.rc.fas.harvard.edu OpenAuth cut-over to new server

  • Audience: New accounts or anyone requesting an OpenAuth token

  • Impact: two-factor will be unavailable while moving to a new server

• RStudio Server (Open OnDemand)

  • Audience: RStudio Server users on Cannon and FASSE

  • Impact: We will be decommissioning some versions of RStudio Server so we can properly maintain all production versions. Versions to be decommissioned:

    • R 4.1.3 (Bioconductor 3.14, RStudio 2022.02.0)

    • R 4.1.0 (Bioconductor 3.13, RStudio 1.4.1717)

    • R 4.0.3 (Bioconductor 3.12, Rstudio 1.3.1093)

    • R 4.0.0 (Bioconductor 3.11, Rstudio 1.3.1093)

  • If you use one of these versions, we recommend replacing it with the most recent version, R 4.4.2 (Bioconductor 3.20, RStudio 2024.12.0). You must reinstall previously installed libraries.

• 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/