# h
a online
The operation will reboot this node.
Do you want to proceed? (yes|no) [no]: yes
Broadcast message from root (Mon Jul 27 17:52:47 2020):
The system is going down for reboot NOW!
7. For HA systems that were failed over to the standby node before the component replacement, after the system reboots, run
the ha status to verify the HA configuration is back online.
# h
a status
HA System Name: datadomain-ha3a.emc.com
HA System Status: highly available
Node Name Node ID Role HA State
-------------------------- --------- --------- --------
datadomain-ha3a-p0.emc.com 0 standby online
datadomain-ha3a-p1.emc.com 1 active online
-------------------------- --------- --------- --------
8. For HA systems that were failed over to the standby node before the component replacement, optionally fail the system
back to the original active node. Run the ha status command to verify that the HA pair can failover and the ha
failover on the current active node to restore the original active node.
Power supply
This section describes how to remove and replace a power supply.
Power supply overview
The node has two hot-swappable 1050W power supply units that are accessible from the rear of the chassis. When facing the
rear of the unit, the bottom power supply is unit #0 and the top is unit #1.
Each power supply provides 1050 Watts of 12-Volt main power and 30 Watts of standby power. The two supplies are arranged
in a 1+1 fashion. A single power supply can supply enough power for the system to operate normally.
The system should be powered from redundant AC sources, which allows one AC source to fail or be serviced without impacting
system operation. One power supply should be connected to the AC power source circuit A, and the other supply should be
connected to AC power source circuit B.
Identify the failed power supply unit
About this task
The following figure shows the orientation of the two power supply units, and their LED locations at the front of the chassis.
24 Field Replaceable Units
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