vYes - Select the Recovery Guru toolbar button in the Subsystem Management window and complete the recovery procedure. If a problem is still indicated, contact IBM Customer and Technical Support.

vNo - Go to step 20.

20.Create, save, and print a new storage subsystem profile.

Replacing a dc power supply and fan unit

CAUTION:

This unit has more than one power source. To remove all power from the unit, all dc MAINS must be disconnected.

Statement 29:

CAUTION:

This equipment is designed to permit the connection of the earthed conductor of the dc supply circuit to the earthing conductor at the equipment.

This equipment is designed to permit the connection of the earthed conductor of the dc supply circuit to the earthing conductor at the equipment. If this connection is made, all of the following conditions must be met:

vThis equipment shall be connected directly to the dc supply system earthing electrode conductor or to a bonding jumper from an earthing terminal bar or bus to which the dc supply system earthing electrode conductor is connected.

vThis equipment shall be located in the same immediate area (such as, adjacent cabinets) as any other equipment that has a connection between the earthed conductor of the same dc supply circuit and the earthing conductor, and also the point of earthing of the dc system. The dc system shall not be earthed elsewhere.

vThe dc supply source shall be located within the same premises as this equipment.

vSwitching or disconnecting devices shall not be in the earthed circuit conductor between the dc source and the point of connection of the earthing electrode conductor.

Statement 30:

Chapter 5. Replacing components 169

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IBM DS4700 manual Replacing a dc power supply and fan unit