Checking The Frus; Verifying Power Supplies; Replacing A Power Supply - IBM System Storage SAN32B-E4 Installation, Service And User Manual

Checking the FRUs

The power supplies and the fan assemblies are field-replaceable units (FRUs) and
can be replaced on site without the use of special tools. The power supplies and
fan assemblies are keyed to ensure correct orientation during installation. To
determine the status of these FRUs, use the following diagnostic procedures.
Follow the replacement procedures in "Replacing a power supply" and "Replacing
a fan assembly" on page 39 if you determine that any FRU is defective.

Verifying power supplies

The two power supplies are hot-swappable if replaced one at a time. They are
identical and fit into either slot. Fabric OS identifies the power supplies as follows
(viewing the switch from the non-port side):
Attention: Maintain both power supplies in operational condition for redundancy.
v Power supply #1 ( 3 in Figure 17 on page 37) on the right
v Power supply #2 ( 4 ) on the left
To determine if a power supply requires replacing, do either of the following:
v Check the power supply status LED above the On/Off switch ( 5 in Figure 18
v In Web Tools, click the Power Status icon.
v Enter the psShow command at the command prompt to display power supply
v You can also use the switchStatusShow command to verify the status of the
Refer to the Fabric OS Command Reference for more information about these
commands, and the Fabric OS Message Reference for information about specific error
messages.

Replacing a power supply

Attention: Before installing, removing, or replacing any component, read and
follow the "Safety notices and labels" on page xiii.
Note: Disassembling any part of the power supply voids the part warranty and
Attention: The cooling system relies on pressurized air, do not leave either of the
power supply slots empty longer than two minutes when the switch is operating.
If a power supply fails, leave the power supply in the switch until it can be
replaced.
This section describes how to remove and replace the power supply. Although
these FRUs can be removed and replaced without special tools, qualified personnel
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SAN32B-E4 Installation, Service, and User Guide
on page 38). If the power supply status LED is not on, verify that the power
supply is on and seated and the power cord is connected to a functioning power
source. If the light does not turn green, the power supply may need to be
replaced.
status as shown in the example below:
switch:admin> psshow
Power Supply #1 is OK
Power Supply #2 is OK
switch:admin>
power supplies and fan assemblies.
regulatory certifications. There are no user-serviceable parts inside the
power supply.