Contact technical support at NetApp Support, 888-463-8277 (North America), 00-800-44-638277 (Europe),
or +800-800-80-800 (Asia/Pacific) if you need the RMA number or additional help with the replacement
procedure.
Hot-swap a power supply - shelves with IOM12 modules
You can hot-swap a failed power supply in a DS460C, DS224C, or DS212C disk shelf.
Before you begin
All other components in the system—including the other power supply—must be functioning properly.
About this task
• If you are replacing more than one power supply, you must do so one at a time so that the disk shelf
maintains power.
• You must replace a power supply within two minutes of removal to minimize disruption to the disk shelf’s
airflow.
• Always use two hands when removing, installing, or carrying a power supply to support its weight.
• The best practice is to have the current versions of disk shelf (IOM) firmware and disk drive firmware on
your system before adding new disk shelves, shelf FRU components, or SAS cables.
Current versions of firmware can be found on the NetApp Support Site.
NetApp Downloads: Disk Shelf Firmware
NetApp Downloads: Disk Drive Firmware
• If needed, you can turn on the disk shelf’s location (blue) LEDs to aid in physically locating the affected disk
shelf:
storage shelf location-led modify -shelf-name shelf_name -led-status on
A disk shelf has three location LEDs: one on the operator display panel and one on each IOM12 module.
Location LEDs remain illuminated for 30 minutes. You can turn them off by entering the same command,
but using the off option.
• If needed, you can refer to the Monitoring disk shelf LEDs section for information about the meaning and
location of disk shelf LEDs on the operator display panel and FRU components.
Steps
1. Properly ground yourself.
2. Unpack the new power supply and set it on a level surface near the shelf.
Save all packing materials for use when returning the failed power supply.
3. Physically identify the failed power supply from the system console warning message and the illuminated
attention (amber) LED on the power supply.
4. Turn off the failed power supply and disconnect the power cable:
a. Turn off the power switch on the power supply.
b. Open the power cord retainer and unplug the power cord from the power supply.
c. Unplug the power cord from the power source.
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