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April 2025

Planned Maintenance Window

  • Planned Start: 2025-04-21 12:00 AM
  • Anticipated End: 2025-04-28 12:00 AM
  • Impacted Resources: Cloud.rc, Cheaha "amperenodes," "pascalnodes," and "intel-dcb" partitions.

Cloud.rc (OpenStack) and Cheaha nodes within DC Blox will be undergoing maintenance during the week of April 21, 2025. Cloud.rc and Cheaha "amperenodes,” "pascalnodes,” and "intel-dcb" partitions will be inaccessible during maintenance. Note this means all GPU nodes will be inaccessible. Planned growth requires us to move hardware within the DC BLOX data center. Please plan your Research Computing needs around this maintenance window. If you need additional assistance, please reply to this email or reach out to support@listserv.uab.edu.

Reduced LTS Transfer Speeds on Globus

We are aware of increased transfer times into and out of LTS when using Globus. Transfer times are taking substantially longer than expected. The issue is occurring because of a bug in our version of Ceph, the LTS backend storage system. A bugfix is in the works by the vendor and we will communicate once we know more.

2025-09-11 Planned Maintenance Window

Note

This window applies only to researchers using GPFS5.

We will be performing upgrades on the GPFS5 storage system to optimize stability. During this process, researchers on the GPFS5 side will be unable to login via SSH, and Open OnDemand (https://rc.uab.edu) will appear unresponsive.

The maintenance window is scheduled for the morning of Tuesday, September 16, 2025, from 6:00 AM through 6:00 PM. We expect the process to take no more than 12 hours. We will restore service as soon as work is complete.