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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 37 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. An SFP is used 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:
v Do not remove the covers. Removing the covers of the laser product could result in
v Use of controls or adjustments or performance of procedures other than those
Handling fiber-optic cables
Before using fiber-optic cables, read the following precautions.
Attention:
v Do not route the cable along a folding cable-management arm.
v When attaching to a device on slide rails, leave enough slack in the cable so that
v Route the cable away from places where it can be snagged by other devices in
© Copyright IBM Corp. 2003
exposure to hazardous laser radiation. There are no serviceable parts inside the
device.
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.
To avoid damage to the fiber-optic cables, follow these guidelines:
it does not bend to a radius of less than 38 mm (1.5 in.) when extended or
become pinched when retracted.
the rack.
27
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