AT&T PC 6300 - HDU Drive and Controller Test

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DIAGNOSTICS

HDU

Drive

and

Controller

Test

The

HDU

Drive

and

Controller

test

checks

the

following:

Testing

HDU

Drive;

This

test

checks

the

hardware

of

the

HDU

itself.

Seek

Test:

The

first

seek

is

to

the

last

cylinder,

the

second

seek

is

to

the

first

cylinder,

the

third

seek

is

to

the

last

cylinder

-

1,

the

fourth

seek

is

to

the

first

cylinder

+

1,

and

so

on.

4-38

n

n

n

n

•

Drive

Ready

Test

•

Testing

HDU

Controller

•

Testing

HDU

Drive

•

Seek

Test

on

HDU

•

Verifying

HDU

Surface

•

Write

to

HDU

Test

Cylinder

•

Read

and

Check

Data

on

HDU

Test

Cylinder.

*

u

Drive

Ready

Test:

The

drive

ready

test

assures

that

the

hard

disk

drive

is

ready.

If

the

drive

is

not

ready

in

15

to

IT

seconds,

an

error

message

is

displayed.

'

j

J

Testing

HDU

Controller:

This

test

checks

the

HDU

Controller

H

board.

This

test

writes,

reads,

and

verifies

all

possible

data

to

the

i

[

ports

that

allow

both

writes

and

reads.

n

i

n

.H-

n

n

n

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