Справочник Пользователя для IBM Partner Pavilion DS4100

Table

10.

IBM

TotalStorage

DS4100

AC

power

requirements

Low

Range

High

Range

Nominal

Voltage

90

to

136

VAC

180

to

264

VAC

Frequency

50

to

60

Hz

50

to

60

Hz

Idle

Current

2.50

A

a

1.33

A

b

Maximum

Operating

Current

3.01

A

a

1.57

A

b

a.

Typical

voltage:

115

V

AC,

60

Hz

at

77%

power-supply

efficiency

and

0.96

power

factor

b.

Typical

voltage:

230

V

AC,

60

Hz

at

77%

power-supply

efficiency

and

0.96

power

factor

Heat

output,

airflow,

and

cooling

The

maximum

heat

output

of

the

DS4100

is

390

watts

(1235

BTU/hr).

Each

DS4100

rack-mounted

unit

requires

an

airflow

of

2.5

m

3

(87

ft

3

)

per

minute.

The

input

air

temperature

to

all

rack

cabinets

should

be

in

the

range

10°

C

-

35°

C

(50°

F

-

95°

F).

The

recommended

operating

temperature

is

22°

C

(72°

F).

When

rack

cabinets

that

contain

many

DS4100s

are

to

be

installed

together,

the

following

requirements

must

be

met

to

ensure

that

the

DS4100s

are

adequately

cooled:

v

Air

enters

at

the

front

of

the

rack

cabinet

and

leaves

at

the

back.

To

prevent

the

air

that

is

leaving

the

rack

cabinet

from

entering

the

intake

of

another

piece

of

equipment,

you

must

position

the

rack

cabinets

in

alternate

rows,

back-to-back

and

front-to-front.

This

arrangement

is

known

as

“cold

aisle/hot

aisle”

and

is

shown

in

v

Where

rack

cabinets

are

in

rows,

each

rack

cabinet

must

touch

the

rack

cabinet

that

is

next

to

it

to

reduce

the

amount

of

hot

air

that

can

flow

around

from

the

back

of

the

rack

into

the

intakes

of

the

storage

servers

that

are

in

that

rack

cabinet.

You

should

use

Suite

Attach

Kits

to

completely

seal

any

gaps

that

remain

between

the

rack

cabinets.

For

details

about

Suite

Attach

Kits,

contact

your

marketing

representative.

v

Where

rack

cabinets

are

in

rows

front-to-front

or

back-to-back,

a

gap

of

at

least

1220

mm

(48

in.)

must

separate

the

rows

across

the

cold

aisle.

v

To

ensure

correct

airflow

in

each

rack

cabinet,

the

rack

filler

plates

must

be

installed

in

unused

positions.

Also,

all

the

gaps

in

the

front

of

the

rack

cabinets

must

be

sealed,

including

the

gaps

between

the

storage

servers.

Chapter

1.

Introduction

15