Upcoming CARC Maintenance - May 21-24, 2021

Posted on May 06, 2021 by Andrea Renney

0.0.0.1 Maintenance and downtime coincides with final phase of USC Data Center’s UPS upgrade.

We will be conducting maintenance on CARC systems beginning at 8:00 PM PST on Friday, May 21, anticipated to complete by 12:00 PM PST on Monday, May 24. Despite some back-and-forth about the maintenance schedule, these dates are correct and final. This maintenance and downtime coincides with the final phase of the USC Data Center’s UPS (Uninterruptible Power Supply) upgrade. The upgrade will provide increased redundancy and minimize risk by adding a fully redundant UPS/battery system in a separate and newly built power distribution room.

During this maintenance period, you will be unable to run jobs or access the compute nodes on Discovery and Endeavour. You will notice that Slurm has now been configured to prevent the scheduling of jobs during this maintenance period. However, you will still be able to access the login nodes and file systems during the maintenance.

Because we haven’t been conducting regular monthly maintenance, this maintenance period will last a bit longer than our usual single-day maintenance. We appreciate your understanding and flexibility, and we will notify you of any changes to this maintenance schedule.