Fujitsu PRIMERGY RX2520 M5 Upgrade And Maintenance Manual page 107

Note for removing a hot-plug PSU from a redundant configuration
If a hot-plug PSU should be removed from a redundant configuration, while the
system is in operation, proceed the following:
▶ Disconnect the power cord from the dedicated PSU, see
power cord" on page
A CSS error is detected and the message "redundancy lost" is displayed
using the iRMC web interface. Your configuration is now non-redundant. The
CSS error is only an information. After removing the PSU out of its bay, the
CSS error will be cleared automatically.
Note for servers using CMA (Cable Management Arm)
Regarding of removing PSUs, additional tasks are needed, due to an
interference between CMA stopper and the PSUs.
Figure 26: Unlocking the CMA stopper
RX2520 M5
46.
Upgrade and Maintenance Manual
Power supply unit (PSU)
"Disconnecting the
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