Questions: Power Supply Redundancy Lost

• What is the specific failure mode of PSU 2 (internal fault, AC input loss, overtemp)?
• Is the power cable from PDU B to PSU 2 properly connected?
• Can PSU 1 handle the full server load alone (520W < 800W rated)?
• Is the server under warranty for PSU replacement?
• Are there spare PSUs available in the datacenter?
• Should the workload be drained from this node preemptively?
• What is the risk of PSU 1 also failing (age, environmental conditions)?
• Has the PSU been reseated to rule out a contact issue?
• Are other servers of the same age/model showing PSU degradation?
• What is the lead time for a replacement PSU?