Figure 40: HPE StoreFabric SN4000B SAN Extension Switch power supply
on page 66).
The Fabric OS identifies power supplies from left to right on the nonport side as power supply #2 and
power supply #1.
See this cautionary note before beginning replacement
.
See
LED patterns on the nonport side of the HPE StoreFabric SN6500B 16Gb FC Switch and the
HPE StoreFabric SN4000B SAN Extension Switch
for the power supply status LED colors, patterns,
and recommended actions, if any.
Determining the need to replace a power supply
Use one of the following methods to determine the status of the power supplies:
• Check the power supply AC status and DC status LEDs; both should be green. See
on page 54
for more information. If the DC status LED is amber, there is no power running through the cord.
• In Web Tools, click the
Power Status
icon.
• At the command prompt, enter the
psShow
command to display the power supply status:
Example of the
psShow
command for the StoreFabric SN6500B 16Gb FC Switch:
Switch:admin> psshow
Power Supply #1 is OK
Airflow Direction : Portside Intake (Forward)
Power Supply #2 is OK
Airflow Direction : Portside Intake (Forward) Switch:admin>
WARNING:
You must disconnect the power cords from all power sources to completely remove power from the
chassis.
Before beginning the power supply replacement
CAUTION:
Hewlett Packard Enterprise only supports the port-side exhaust configuration, and only offers the
port side exhaust fan FRU. The following information is provided only for reference.
When replacing a failed power supply or fan, the new FRU must have the same part number as the
FRU it is replacing. The manufacturing part number is located on the top of the FRU.
Both the power supply and fan FRUs are labeled with an airflow symbol on the faceplate to indicate
whether the fan assembly pulls in or exhausts air. These labels also appears on the top of the fan
assembly. All fan assemblies and power supplies must have the same airflow symbol (E or I) to be
compatible with each other.
Examples of airflow symbols
64
Determining the need to replace a power supply
