Logging behavior
As with all Redundancy Policies, when a Power Supply Unit fails, a log message is generated. For the Fault Tolerant Redundancy
policy, a log message will also be recorded to note a "Loss of Redundancy". This message indicates that the system is continuing
to operate in a Non-Redundant state, and action is necessary to either restore power to a failed AC Grid or replace a failed
Power Supply Unit. Details in log messages make it possible to distinguish between these two cases. Finally, in case power-on of
a chassis component is denied due to a Power Budget Check, the denial is logged both in CMC logs and iDRAC logs (in the case
of compute sleds).
Removing a power supply unit
Prerequisites
1. Follow the safety guidelines listed in
2. Disconnect the power cable from the power source and from the PSU you intend to remove, and then remove the cable
from the strap on the PSU handle.
CAUTION:
The power supply is only hot-swappable if you have a redundant system with two power supplies
installed
Steps
1. Press and hold the release latch.
2. Slide the PSU out of the system using the PSU handle.
Figure 21. Removing a power supply unit
Next steps
Installing a power supply unit
Prerequisites
1. Follow the safety guidelines listed in
.
28
Installing and removing enclosure components
