Dell EMC IDPA DP4400 - Remove and Replace a Power Supply

Table 3 AC PSU status indicator codes (continued)
Power indicator
codes
Condition
CAUTION
When correcting a PSU mismatch, replace only the PSU with the
blinking indicator. Swapping the PSU to make a matched pair can
result in an error condition and unexpected system shutdown. To
change from a high output configuration to a low output
configuration or vice versa, you must turn off the system.
CAUTION
AC PSUs support both 240 V and 120 V input voltages with the
exception of Titanium PSUs, which support only 240 V. When two
identical PSUs receive different input voltages, they can output
different wattages, and trigger a mismatch.
CAUTION
If two PSUs are used, they must be of the same type and have the
same maximum output power.
CAUTION
Combining AC and DC PSUs is not supported and triggers a
mismatch.
Remove and replace a power supply
Identifying a failed power supply from the ACM
If a power supply is suspected of failing, you can check the web UI or use the FRU
command line verification from the ACM.
Procedure
1. Access the web UI and check for alerts in the Health screen. Click an alert for
more details.
2. From the ACM, use SSH to connect to the ACM command line by typing: ssh
[administrator name]-dp4400-[ACM url]
For example: ssh admin@acme-dp4400-ACM.lab.acme.com
Once connected, the screen displays a command line corresponding to the
ACM.
3. At the command line, type the following command: # showfru power
The screen displays that the system is collecting data. When the data collection
is completed, the screen displays status information for the power supplies.
Collecting Data............
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| ID| Status| Redundancy| Model | Part# | Serial# | FW
Version|
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Remove and replace assemblies
14 Dell EMC IDPA DP4400 Service Procedures