NOTICES
The annual MGHPCC power downtime will take place June 5th-8th, 2023
Calendar Event: https://www.rc.fas.harvard.edu/events/mghpcc-power-shutdown-2023/
Blog Post: https://www.rc.fas.harvard.edu/blog/2023-downtime/
GENERAL MAINTENANCE
NOTE: All jobs will be paused during maintenance to reduce heat load and allow data center cooling maintenance to take place.
Login node updates and reboots, VDI reboots
Audience: VDI/OpenOnDemand users
Impact: VDI will be unavailable during this and the above Slurm upgrade
RCSMB (samba) Boston network changes
Audience: RCSMB shares mounted out of Boston
Impact: Could cause brief share disconnects during updates
UPDATE: Nexus control plane supervisor switchover - ETA 5 minutes, short network disconnect while restarting
Login node updates/reboot and VDI node reboots
Audience: Anyone logged into a a login node or VDI/OOD node
Impact: Login and VDI/OOD nodes will be unavailable while updating and rebooting
Scratch cleanup ( https://docs.rc.fas.harvard.edu/kb/policy-scratch/ )
Audience: Cluster users
Impact: Files older than 90 days will be removed.
Reminder: Scratch 90-day file retention purging runs occur regularly not just during maintenance periods.
SECURITY UPDATES
HUIT and the CIO Council have set a goal of reducing risk across all schools within the University. All schools are looking to reduce their outstanding vulnerability count 75% by June 2023. These numbers are based on HUIT security scans of our infrastructure.
We at FAS Research Computing are responsible for thousands of physical and virtual machines. To make progress in reducing our total open vulnerabilty count, we’re going to update internal and user facing systems as part of scheduled monthly maintenance windows and on a rolling basis outside of these windows. This will generally mean running OS and security updates as needed and rebooting these nodes when required.
This month, these hosts will get updates as part of our scheduled maintenance:
boslogin01 - boslogin04
holylogin01 - holylogin04
holydtn01 - holydtn04
xdmod4.rc.fas.harvard.edu
rchelp.rc.fas.harvard.edu (our ticket system)
rcsmtp.rc.fas.harvard.edu (our mail system)
Thanks!
FAS Research Computing
Department and Service Catalog: https://www.rc.fas.harvard.edu/
Documentation: https://docs.rc.fas.harvard.edu/
Status Page: https://status.rc.fas.harvard.edu/
