IBM SAN512B-6, Installation, Service And User Manual

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Replace or install power supply assembly (cold-install or
cold-swap)
If your device is up and running, but you want to power down the device to
install additional power supply assemblies or replace failed power supply
assemblies, complete the following steps.
1. Shut down the system using the
sysShutdown
command.
2. Unplug power cords from all power supply assemblies.
3. If adding a power supply assembly, remove filler panel from empty power
supply assembly slot.
4. Install or replace power supply assemblies.
5. Plug power cords into all power supply assemblies from power sources.
6.
Verify the power supply assembly status LEDs.
Time and items required
The procedure to remove or install a each power supply takes less than five
minutes. A power supply unit or filler panel is required for the power supply
replacement.
Removing a power supply
About this task
To remove a power supply, complete the following steps.
Procedure
1. Before removing a power supply assembly, Verify if you can remove a power
supply and the leave device operating (hot swap replacement) or must power
down the device (cold-swap replacement).
Note: Depending on the blade configuration of the device and the number of
power supplies installed, the device may be able to continue operating while
replacing a power supply. Refer to "Power supply specifications" and "Power
supply requirements" in Appendix B, “Product specifications,” on page 235 for
minimum power supplies required for low and high voltage line operation,
redundancy in case of power supply failure, and other specifications. If there is
insufficient power, the device will power down blades until the power demand
can be met.
2.
Perform one of the following steps:
v If you need to power down the device to remove a power supply, enter the
sysShutdown command. When command output indicates that the device has
completed shut-down, remove power cords from all power supply
assemblies.
v If you can leave the device in operation and replace a power supply, unplug
the power cord from the power supply assembly that you are replacing.
Note: Be sure to replace the power supply as soon as possible.
3.
Loosen the captive screw on the right side of the power supply assembly until
the screw releases from the chassis. The captive screw is located just below the
airflow label on the right side of the power supply assembly. If necessary use a
Phillips screwdriver.
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SAN512B-6 Installation, Service, and User Guide