MGHPCC Annual Power Downtime

The annual multi-day power downtime at MGHPCC will take place June 5th-8th with return to full service by 9AM Friday June 9th. https://www.rc.fas.harvard.edu/blog/2023-downtime/

During this downtime we will be performing *major *updates to the cluster's operating system, public partition time limits, and significant changes to our software
<https://docs.rc.fas.harvard.edu/kb/rocky-8-transition-guide/#Software> offerings and procedures. This will affect ALL cluster users and as described below may require you to modify your normal workflows and software chains. Test cluster are available
<https://docs.rc.fas.harvard.edu/kb/rocky-8-transition-guide/>. Due to the breadth of these changes, this downtime will also impact almost every service we provide, including most housed in Boston.

- All running and all pending jobs will be purged Monday morning June 5th. All pending jobs or unfinished jobs will need to be re-submitted once the cluster is back up.

- All login nodes will be down for the duration and will have their OS updated to Rocky 8 <https://rockylinux.org/>. Once complete, the login process will not change, but the underlying operating system will. Rocky 8 test clusters for Cannon
<https://docs.rc.fas.harvard.edu/kb/rocky-8-transition-guide/#Rocky_8_Test_Cluster> and FASSE
<https://docs.rc.fas.harvard.edu/kb/rocky-8-transition-guide/#FASSE_Rocky_8_Test_Cluster> are available NOW for you to test your workflows and prepare for these changes.

- All storage at MGHPCC/Holyoke will be powered down during the outage. Boston storage servers will not be powered down but will likely be unavailable as there will be no nodes available to access them. Some Boston Samba shares may be accessible, but please assume they will also be affected at various times.

Expanded details are below, or refer to:

https://www.rc.fas.harvard.edu/blog/2023-downtime/

https://docs.rc.fas.harvard.edu/kb/rocky-8-transition-guide/

The Transition Guide also contains links to our town hall slides and video on the subject.