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Recent News#

April maintenance

RCC maintenance will last from 9PM-12AM on Wednesday, April 3, 2024. Cluster jobs will be blocked during maintenance. Login nodes will be rebooted. Open OnDemand will be rebooted. Access to storage may be disrupted. Most login and compute nodes will be upgraded to Rocky Linux 8.

Potentially breaking change

RCC will upgrade a majority of login and cluster nodes to Rocky Linux 8. If you have not participated in the first phase test, you are at risk of failing, or inaccurate jobs. Please review the cluster upgrade guide for details. We will continue to maintain a login node and small number of cluster nodes on the legacy CentOS 7 operating system. This will ensure backwards compatibility for those users that have not fixed software issues prior to upgrade. Contact help-rcc@mcw.edu with questions.

Changes to storage policies

Research Computing is making policy changes regarding storage organization and retention. This is in response to the increasing needs of users, and represent best practice.

Policy updates

  • User scratch directories (/scratch/u/...) will be deleted
  • Files in scratch that have not been accessed or modified in the last 60 days will be removed daily

HPC Cluster Operating System Upgrade

The HPC cluster operating system, CentOS 7, will be end-of-life in June 2024 and we are beginning a project to upgrade. This will allow us to maintain ongoing security patching and compatibility with new software through the cluster lifetime. To that end, we have chosen to upgrade the HPC cluster to Rocky Linux 8.

We encourage all users to review the new Cluster OS Upgrade guide for details about timeline and key changes.

Updated data protection

Group storage directories are now protected by additional snapshots. You might be wondering what that is, and how does it help? We answer questions about data protection often, but this particular change is exciting and gives us an opportunity to discuss our file system, data protection, and specifically snapshots.