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8.

Use

the

DS4000

Storage

Manager

client

to

monitor

the

status

of

the

new

drive

and

the

progress

of

the

data

reconstruction.

Wait

for

data

reconstruction

to

finish

(the

Drive

activity

LED

stops

flashing).

Note:

The

Drive

activity

LED

will

continue

to

flash

after

reconstruction

is

finished

if

there

is

I/O

activity

to

that

drive.

In

that

case,

use

the

host

software

to

determine

if

the

data

reconstruction

is

finished.

9.

When

reconstruction

is

finished

on

the

new

drive,

repeat

step

through

step

for

each

additional

drive

that

you

want

to

install.

10.

Use

the

DS4000

Storage

Manager

client

to

configure

the

additional

space

on

the

new

drives.

Working

with

hot-swap

cooling

fans

The

storage

server

cooling

system

consists

of

two

fan

CRUs,

each

containing

two

fans.

The

fan

CRUs

circulate

air

inside

the

unit

by

pulling

in

air

through

the

vents

on

the

front

of

the

drive

CRUs

and

pushing

out

air

through

the

vents

in

the

back

of

each

fan

CRU.

See

If

two

fans

fail,

or

the

fans

cannot

maintain

an

internal

temperature

below

70°

C

(158°

F),

the

power

supplies

in

the

unit

will

automatically

shut

down

(an

over-temperature

condition).

If

this

occurs,

you

must

cool

the

unit

and

restart

it.

See

over-temperature

Attention:

The

fans

in

the

storage

server

draw

in

fresh

air

and

force

out

hot

air.

These

fans

are

hot-swappable

and

redundant;

however,

when

one

fan

fails,

you

must

replace

the

fan

CRU

within

48

hours

to

maintain

redundancy

and

optimum

cooling.

When

you

replace

the

failed

fan

CRU,

be

sure

to

install

the

second

fan

CRU

within

10

minutes

to

prevent

any

overheating

due

to

the

lack

of

the

additional

fan

CRU.

Fan

CRUs

The

two

fan

CRUs

are

hot-swappable

and

redundant.

Fault

LEDs

These

amber

LEDs

light

when

a

fan

failure

occurs.

Latches

and

handles

Use

the

latches

and

handles

to

remove

or

install

the

fan

CRUs.

Attention:

Do

not

run

the

storage

server

without

adequate

ventilation

and

cooling,

because

it

might

cause

damage

to

the

internal

components

and

circuitry.

Fan CRU

Fan CRU

Handle

Handle

Latch

Latch

Fault LED

Fault LED

f10ug024

Figure

64.

Fan

locations

88

IBM

TotalStorage

DS4100

Storage

Server:

Installation,

User’s,

and

Maintenance

Guide