IBM TotalStorage SAN140M, Installation And Service Manual

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229 Chapter 5: Removal and replacement procedures (RRPs)
6. If necessary, close and lock the equipment cabinet door.
RRP: Power supply
Use the following procedures to remove or replace a power supply. A
list of tools required is provided.
Tools required
The following tools are required to perform these procedures.
• Door key with 5/16-inch socket.
• Standard flat-tip screwdriver.
• ESD grounding cable and wrist strap.
Removal
To remove a power supply:
1. If the director is installed in a stand-alone configuration, go to
step 2 . If the director is rack-mounted, perform one of the
following:
— If the director is installed in an equipment cabinet, insert the
5/16" door tool into the socket hole at the right top of the rear
door. Turn the tool counter-clockwise to unlock and open the
door.
— If the director is installed in a customer-supplied equipment
cabinet, unlock and open the cabinet rear door as directed by
the customer representative.
ATTENTION! To avoid causing machine errors or damage while working on
the director, follow ESD procedures by connecting a grounding cable to the
director chassis and wearing an ESD wrist strap.
2. Follow ESD procedures by attaching a wrist strap to the director
chassis and your wrist ( Figure 74 ).
3. Identify the defective power supply from the unlit green PWR
OK LED on the supply or failure information at the management
server Hardware View.
4. Use a flat-tip screwdriver to release the handle at the top of the
power supply.