2: Operation Procedures

Preparing to Power On

To prepare to power on your system, follow these steps:

1.Check to ensure that the cabling between the rack’s power distribution unit (PDU) and the wall power-plug receptacle is secure.

2.For each individual IRU that you want to power on, make sure that the power cables are plugged into all the IRU power supplies correctly, as shown in Figure 2-1. Setting the circuit breakers on the PDUs to the “On” position will apply power to the IRU and will start the system controller(s) in the IRUs. Note that the system controller in each IRU stays powered on as long as there is power coming into the unit.

Figure 2-1IRU Power Supply Cable Location Example

3.If you plan to power on a server that includes optional mass storage enclosures, make sure that the power switch on the rear of each PSU/cooling module (one or two per enclosure) is in the 1 (on) position.

4.Make sure that all PDU circuit breaker switches (see the example in Figure 2-2 on page 53) are turned on to provide power to the server system when it is switched on.

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Intel SGI Altix 450 manual Preparing to Power On, 1IRU Power Supply Cable Location Example