This procedure can be performed only by qualified service personnel after powering off the server.
Caution - This procedure requires that you handle components that are sensitive to electrostatic discharge. This discharge can cause server components to fail. When you unpack the replacement PDU, open the package on a grounded antistatic mat. Always use an antistatic wrist strap for hardware replacements.
Press down on each of the Off (0) toggle switch to power off the PDU. These circuit breakers are at the rear of the rack cabinet.
For SPARC M8-8 or SPARC M7-8 server, right PDU (PDU-B):
If one SPARC M8-8 or SPARC M7-8 server is installed: R8, R7, R6
If two SPARC M8-8 or SPARC M7-8 servers are installed: R8, R7, R6; R5, R4, R3
If three SPARC M8-8 or SPARC M7-8 servers are installed: R8, R7, R6; R5, R4, R3; R2, R1, R0
For SPARC M8-8 or SPARC M7-8 server, left PDU (PDU-A):
If one SPARC M8-8 or SPARC M7-8 is installed: L2, L1, L0
If two SPARC M8-8 or SPARC M7-8 servers are installed: L2, L1, L0; L5, L4, L3
If three SPARC M8-8 or SPARC M7-8 servers are installed: L2, L1, L0; L5, L4, L3; L8, L7,L6
For SPARC M7-16 servers, right PDU (PDU-B):
R0, R1, R2
R6, R7, R8
For SPARC M7-16 servers, left PDU (PDU-A):
L8, L7, L6
L2, L1, L0
where R indicates the right PDU from the rear of the server, L indicates the left PDU from the rear of the server, and the number represents the PDU group number.
Caution - Because standby power is always present in the server, you must switch off the circuit breakers on the PDUs before servicing any component that requires the server to be powered off.
Caution - Verity that you are only de-energizing power to the faulty PDU.
Note where these jumper cords were attached to the PDU. You will need to reinstall the jumper cords in the same locations on the new PDU.
The PDU grounding straps are connected in different locations in a Sun Rack II and an Oracle Rack Cabinet 1242.
These screws secure the PDUs for shipping purposes. You might have already removed these screws when you installed the rack at the installation site.
Remove the PDU from the rack and place it on a clean work table.