Справочник Пользователя для IBM DS4000 FC

IBM

Installing

the

FC

4Gbps

PCI-X

Adapter

Attention:

To

avoid

damage

to

your

fiber-optic

cables,

follow

these

guidelines:

v

Do

not

route

the

cable

along

a

folding

cable-management

arm.

v

For

devices

on

slide

rails,

leave

enough

slack

in

the

cables

so

that

they

do

not

bend

to

a

diameter

of

less

than

76

mm

(3

in.)

or

to

a

radius

less

than

38

mm

(1.5

in.)

when

extended

or

become

pinched

when

retracted.

v

Route

the

cable

away

from

places

where

it

can

be

damaged

by

other

devices

in

the

rack

cabinet.

v

Do

not

use

plastic

cable

ties

in

place

of

the

provided

cable

straps.

v

Do

not

overtighten

the

cable

straps

or

bend

the

cables

to

a

diameter

of

less

than

76

mm

(3

in.)

or

a

radius

less

than

38

mm

(1.5

in.).

v

Do

not

put

excess

weight

on

the

cable

at

the

connection

point.

Be

sure

that

the

cable

is

well

supported.

v

The

following

are

the

recommended

maximum

cable

lengths.

–

1Gbps:

500

meters

50/125

µm

fiber,

300

meters

62.5/125

µm

fiber

–

2Gbps:

300

meters

50/125

µm

fiber,

150

meters

62.5/125

µm

fiber

–

4Gbps:

150

meters

50/125

µm

fiber,

70

meters

62.5/125

µm

fiber

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

exposure

to

hazardous

laser

radiation.

There

are

no

serviceable

parts

inside

the

device.

v

Use

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.

The

FC

4Gbps

PCI-X

Adapter

comes

with

an

attached

standard

3U

adapter

bracket

as

shown

in

An

additional

Low

Profile

2U

bracket

also

comes

with

the

adapter.

Before

you

install

the

FC

4Gbps

PCI-X

Adapter,

verify

whether

you

need

the

Fibre

Channel

Low

Profile

2U

adapter

bracket.

If

you

need

to

install

the

Low

Profile

2U

bracket,

continue

with

step

Otherwise,

go

to

step

1.

Complete

the

following

steps

to

install

the

Fibre

Channel

Low

Profile

2U

adapter

bracket:

6

IBM

System

Storage

DS4000

FC

4Gbps

PCI-X

Single/Dual

Port

HBA:

Installation

and

User’s

Guide