Maintenance Summary

A UPS module in Data Center B, Rack Row 3 reported critical battery-cell degradation and was replaced under emergency procedures on March 29.

Timeline

TimeEvent
10:00 AMUPS fault alarm triggered; on-call engineer dispatched
10:22 AMAutomatic transfer to generator backup during module isolation
11:45 AMReplacement module installed and online
1:00 PMFull utility power restored; generator stood down

Impact

  • Brief (< 2 second) power transfer at 10:22 AM — no service outage observed
  • Redundant power path kept all racks energized throughout

Contacts