IBM totalstorage ds4500 Manuel D’Utilisation

 

 

 

DS4500

 

Storage

 

Subsystems

 

use

 

only

 

redundant

 

drive-loop

 

configurations.

 

Each

 

drive

 

mini

 

hub

 

connects

 

to

 

Controller

 

A

 

and

 

Controller

 

B

 

and

 

represents

 

a

 

single

 

drive

 

loop.

 

The

 

drive

 

loops

 

must

 

be

 

set

 

up

 

in

 

pairs

 

to

 

support

 

redundant

 

drive

 

loop

 

configurations

 

(two

 

data

 

paths

 

per

 

storage

 

expansion

 

enclosure).

 

See

 

for

 

an

 

illustration

 

of

 

the

 

drive-side

 

mini-hub

 

interface

 

ports.

 

The

 

maximum

 

number

 

of

 

storage

 

expansion

 

enclosures

 

that

 

can

 

be

 

connected

 

per

 

pair

 

of

 

redundant

 

drive

 

loops

 

depends

 

on

 

the

 

IBM

 

DS4000

 

storage

 

expansion

 

enclosure

 

models

 

used.

 

The

 

following

 

DS4000

 

storage

 

expansion

 

enclosure

 

types

 

are

 

supported

 

by

 

the

 

DS4500

 

Storage

 

Subsystem:

 

v

   

FAStT

 

EXP500

 

v

   

DS4000

 

EXP700

 

v

   

DS4000

 

EXP710

 

v

   

DS4000

 

EXP100

 

If

 

the

 

drives

 

are

 

configured

 

using

 

only

 

DS4000

 

EXP700,

 

EXP710,

 

or

 

EXP100

 

storage

 

expansion

 

enclosures,

 

the

 

DS4500

 

Storage

 

Subsystem

 

supports

 

a

 

maximum

 

of

 

224

 

hard

 

drives.

 

If

 

the

 

drives

 

are

 

configured

 

using

 

only

 

FAStT

 

EXP500

 

storage

 

expansion

 

enclosures,

 

the

 

DS4500

 

Storage

 

Subsystem

 

supports

 

a

 

maximum

 

of

 

220

 

hard

 

drives.

 

 

  

In

 

order

 

to

 

attach

 

DS4000

 

EXP100

 

or

 

DS4000

 

EXP710

 

storage

 

expansion

 

enclosures

 

to

 

a

 

DS4500

 

Storage

 

Subsystem,

 

the

 

DS4500

 

Storage

 

Subsystem

 

controller

 

firmware

 

must

 

be

 

at

 

version

 

06.xx.xx.xx

 

or

 

higher.

 

In

 

addition,

 

you

 

must

 

purchase

 

the

 

FC/SATA

 

Enclosure

 

Intermix

 

premium

 

option

 

to

 

combine

 

DS4000

 

EXP100s

 

with

 

DS4000

 

EXP700s

 

or

 

DS4000

 

EXP710s

 

in

 

the

 

same

 

DS4500

 

Storage

 

Subsystem

 

configuration.

 

Refer

 

to

 

the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

for

 

complete

 

information

 

on

 

storage

 

expansion

 

enclosure

 

support

 

and

 

intermixing

 

requirements

 

for

 

the

 

DS4500

 

Storage

 

Subsystem.

 

2 Gb/s
1 Gb/s

2 Gb/s
1 Gb/s

2 Gb/s
1 Gb/s

2 Gb/s
1 Gb/s

2 Gb/s
1 Gb/s

2 Gb/s
1 Gb/s

2 Gb/s
1 Gb/s

2 Gb/s
1 Gb/s

2 Gb/s
1 Gb/s

2 Gb/s
1 Gb/s

2 Gb/s
1 Gb/s

2 Gb/s
1 Gb/s

2 Gb/s
1 Gb/s

2 Gb/s
1 Gb/s

2 Gb/s
1 Gb/s

2 Gb/s
1 Gb/s

Drive
mini-hub
ports

Drive loop C and D
for redundant loop 2

Drive loop A and B
for redundant loop 1

4

3

2

1

Use one port on each
mini hub to connect
a drive loop cable

Leave one port unoccupied
for future upgrades

d3nu4024