Chapter 3. Cabling the storage server

This chapter provides fibre channel and power cabling information for the storage server.

After you attach the storage server power cables, use the instructions that are provided in “Turning the storage server on and off” on page 65 for the initial startup of the storage server.

Working with SFPs and fiber-optic cables

Each RAID controller has two host ports and one expansion port. You use a small-form factor pluggable transceiver (SFP) to connect each host port and expansion port to hosts and expansion units. The SFP is inserted into the port, and then a fiber-optic cable is inserted into the SFP. The other end of the fiber-optic cable connects to an external device. SFPs are laser products.

Statement 3

CAUTION:

When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are installed, note the following:

vDo not remove the covers. Removing the covers of the laser product could result in exposure to hazardous laser radiation. There are no serviceable parts inside the device.

vUse of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure.

Danger

Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following.

Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.

Handling fiber-optic cables

Before you use fiber-optic cables, read the following precautions.

Attention: To avoid damage to the fiber-optic cables, follow these guidelines:

vDo not route the cable along a folding cable-management arm.

vWhen attaching to a device on slide rails, leave enough slack in the cable so that it does not bend to a radius of less than 38 mm (1.5 in.) when extended or become pinched when retracted.

vRoute the cable away from places where it can be snagged by other devices in the rack cabinet.

© Copyright IBM Corp. 2004

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IBM Partner Pavilion DS4100 manual Cabling the storage server, Working with SFPs and fiber-optic cables