placing the appropriate labels on the dc power supply and fan unit CRU to mark the LEDs correctly. The label sheet contains the
5.Using the information provided on the instruction sheet, place the labels on the dc power supply and fan unit CRU to correctly mark the LEDs.
6.Turn off the power switch on the new unit.
7.Check the Fault LED to locate the failed dc power supply and fan unit. If a fault is detected, the amber Fault LED is on.
8.Verify that the Service Action Allowed LED is on. Do not remove the dc power supply and fan unit if the LED is off. For more information on the Service Action Allowed LED, see “Service Action Allowed Status LED” on page 145.
Statement 1:
DANGER
Electrical current from power, telephone, and communication cables is hazardous.
To avoid a shock hazard:
vDo not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm.
vConnect all power cords to a properly wired and grounded electrical outlet.
vConnect to properly wired outlets any equipment that will be attached to this product.
vWhen possible, use one hand only to connect or disconnect signal cables.
vNever turn on any equipment when there is evidence of fire, water, or structural damage.
vDisconnect the attached power cords, telecommunications systems, networks, and modems before you open the device covers, unless instructed otherwise in the installation and configuration procedures.
vConnect and disconnect cables as described in the following table when installing, moving, or opening covers on this product or attached devices.
To Connect: | To Disconnect: | ||
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1. | Turn everything OFF. | 1. | Turn everything OFF. |
2. | First, attach all cables to devices. | 2. | First, remove power cords from power |
3. | Attach signal cables to connectors. |
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4. | Attach power cords to power source. | 3. | Remove signal cables from connectors. |
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5. | Turn device ON. | 4. | Remove all cables from devices. |
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172IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide
