IBM totalstorage ds4500 Manuel D’Utilisation

IBM

IBM

TotalStorage

DS4500

Storage

Subsystem

Fibre

Channel

Cabling

Guide

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Attention

This

document

contains

important

changes

to

the

required

cabling

scheme

for

connecting

storage

expansion

enclosures

to

the

IBM

®

TotalStorage

®

DS4500

Storage

Subsystem.

The

fibre

channel

cabling

instructions

in

of

this

document

replace

the

information

provided

in

the

IBM

TotalStorage

DS4500

Fibre

Channel

Cabling

Instructions

(pn

25R0406)

and

the

IBM

TotalStorage

DS4500

Installation

and

Support

Guide

(pn

25R0402).

Additionally,

if

you

are

connecting

DS4000

EXP700

or

EXP710

storage

expansion

enclosures

to

a

DS4500,

follow

the

instructions

provided

in

the

this

document

and

not

the

instructions

on

drive-side

fibre

channel

cabling

presented

in

the

IBM

TotalStorage

DS4000

EXP700

and

EXP710

Installation,

User’s,

and

Maintenance

Guide.

This

document

contains

information

on

the

following

topics:

v

v

“Direct-attached

v

Using

IBM

SFP

modules

and

IBM

fibre

channel

cables

The

Small

Form-Factor

Pluggable

(SFP)

module

housing

and

fibre

channel

cable

have

integrated

guide

keys

that

prevent

you

from

inserting

these

devices

incorrectly.

You

must

insert

SFP

modules

into

ports

with

minimal

pressure

so

that

you

do

not

damage

either

the

SFP

module

or

the

port.

You

can

insert

an

SFP

module

into

an

active

port

without

affecting

the

operational

loop

performance.

You

must

connect

the

fibre

channel

cable

to

the

SFP

module

after

you

insert

the

SFP

module

into

the

port.

Attention:

Remove

SFP

modules

from

any

unused

mini

hub

ports

(both

host-side

and

drive-side)

on

the

DS4500

Storage

Subsystem.

To

avoid

damage

to

your

fibre-optic

cables:

v

Do

not

route

the

cable

along

a

folding

cable-management

arm.

v

For

devices

on

slide

rails,

leave

enough

slack

in

the

cable

so

that

it

does

not

bend

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.