Duration:
10/1/2025 9:25 am — 10/1/2025 11:20 am

Group Responsible:
IT Fabric

Affected Area:
HTCondor Batch Services

Expected Impact:
Degrated access to compute resources

Maintenance Type:
Unplanned/Outage

Description:
At approximately 9:25 am ET on Wednesday, Oct. 1st, there was an unexpected incident with the electrical power system in the Scientific Computing and Data Facility (SCDF) at BNL.
This caused a power outage and the temporary loss of some (~30%) computing resources for sPHENIX and ATLAS Tier-1. An investigation is under way to determine the cause(s) of
the outage. A timeline to re-enable these computing resources is pending the outcome of the investigation and a plan by BNL's Facilities & Operations team to restore the electrical
system. Further announcements will be made when relevant information becomes available.