IBM System Storage DR550 | Version 3.0 | 17 March 2006 | Page 47 |
5.Use a
An ASCII (tty) terminal must be used to configure both P5 520 servers. If you have a single terminal, you may connect it to one P5 520 and configure the server. Then connect it to the other P5 520 server and configure it. Thus only one terminal is needed as the console in setting up the DR550. For convenience, the front (FS1) serial port is often preferred.
Dual Node Configurations: Note that P5 520 engine_1 (also referred to as drs_engine_1) is located in Rack1 position 13. P5 520 engine_2 (also referred to as drs_engine_2) is located in Rack1 position 19. Also refer to the Cabling between the Racks section for an illustration of the location of engine_1 and engine_2. It is recommended that you disconnect the cable at the server side when the console is not in use.
Connecting AC Power
Check the AC Outlets
Refer to the 7014 Series Model T00 and Model T42 Installation Guide for additional information in the installation and setup of the 7014 Series Model T00 rack.
Before plugging the rack into the AC power source, do the following checks on the AC power source.
CAUTION: Do not touch the receptacle or the receptacle faceplate with anything other than your test probes before you have met the requirements in step 8.
1.Turn off the branch circuit breaker for the ac power outlet that the rack will plug into. To the circuit breaker switch, attach tag
Note: All measurements are made with the receptacle face plate in the normal installed position.
2.Some receptacles are enclosed in metal housings. For this type of receptacle, do the following:
a.Check for less than 1 volt from the receptacle case to any grounded metal structure in the building, such as a
b.Check for less than 1 volt from the receptacle ground pin to a grounded point in the building.
Note: If the receptacle case or face plate is painted, be sure the probe tip penetrates the paint and makes good electrical contact with the metal.
c.Check the resistance from the receptacle ground pin to the receptacle case. Check resistance from the ground pin to the building ground. The readings should be less than 1.0 ohm, which indicates the presence of a continuous grounding conductor.
3.If any of the three checks made in sub step 2 are not correct, remove the power from the branch circuit and make the wiring corrections; then check the receptacle again.
Note: Do not use a digital
4.Check for infinite resistance between the ground pin of the receptacle and each of the phase pins. This is a check for a wiring short to ground or a wiring reversal.
5.Check for infinite resistance between the phase pins. This is a check for a wiring short.
CAUTION: If the reading is other than infinity, do not proceed! Have the customer make necessary wiring connections before continuing. Do not turn on the branch circuit CB until all the above steps are satisfactorily completed.
IBM Storage Systems | Copyright © 2006 by International Business Machines Corporation |
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