Western Digital WD1002S-WX2 User Manual

Installation

This section contains instructions for installation
WDI002S-WX2
being installed internally,
Controller Board in the closest available expansion slot.

Handle the controller board
board. Some
damage may occur if the board

Instructions

(S-WX2) board. If the disk drive(s) are

of

it

CAUTION

the chips

is best to locate the S-WX2

by

the ends of the

are

static sensitive and

is

incorrectIy

of

the

handled.

At this time, verify that the
ler board are correct. Refer to pages 9 and
ment for information on the

Next, remove the blank expansion slot bracket.
bracket away and save

will be used to hold the new controller board

Connect the 34-pin (wide control cable) connector to J
the

S-WX2 board. Make sure that Pin I
nector goes to
cable connector
of

the cable.

ect

Conn
nector) on the controller board. Make sure that
cable

is

If

a second drive

data cab le to
At this time, also verify that the disk drive(s)

installed. This includes correct placement

jumpers
drive installation manual for further instructions.
NOT

USE

Install the controller board into the expansion slot. Make

sure that the board
both ends
screw.

Pin I on the controller board. Pin I

is

typically located on the col

the 20-pin (data cable) to J2 (Drive 0 Data Con-

connected to Pin I on the controller board.

is

13

likewise.

and drive terminator installation . Refer to the disk

THE

RADIAL

of

the board. Secure the board with the bracket

jumper

settings on the control-

10

of

jumper

settin gs.

it

for possible future use.

being installed, connect the Drive 1

SELECT

is

seated properly by pressing down on

CAUTION

OPTION.

this docu-

The

in

place.

of

the cab le con-

or

coded side

Pin I on the

is

properly

of

drive select

Put the

screw

of

I on

the

00

When routing the cables, be careful not to pinch
them. Cables must not get caught between the
cover and the boards nor should they obstruct
any

air

flow path from fans

Install the disk drive(s) per manufacturer

or

vents.

's

instructions.

Standard

The following procedures are a complete set
for
WDI002S-WX2
ROM.

Running the OE

The
program to physically format the drive. During execution,
the user
refer to the DOS operating manual for detailed instructions
regarding this utility.

BIOS

ROM

Format

formatting

(P

DEBUG Utility

one

or

two

Controller Board with a standard BIOS

/N 62-0000 42-xxx).

BUG

Utility

is

used to initiate the S-WX2 format

is

prompted to define the interleave factor. Please

Instructions

disk

drive

s when usin g a

of

instructions

Step Instructions

1.

At the A> prompt, load and run the DOS debug utility
by typing DEBUG followed by
stands for carriage return

A> DEBUG CR

The

next step changes the drive address a

lf

leave factor.
to

00

and the interleave factor will default to three. Proceed
with step 2
the system
than three.

2.

Atthe
target drive number and interleave factor.
prompt

not modified, the drive number will default

if

there are two hard disk drives configured into

and/

or

the desired interleave factor

lf

neither applies, go directly to step

debug prompt, type the following line to se

is

the hyphen "

-".

- rax CR

CPU response:

AX

0000

At the colon prompt, enter drive number and inter-

leave factor

in

hexidecimal followed by

xxyy CR

Where: xx = the relative drive number

yy

= the interleave factor

NOTE: Relative Drive

01.

An

interleave
formatting two drives, this operation must be run
twice; first with the relative drive number
again with

3. At the debug prompt, initiate the S-WX2 format pro­gram by typing in the following

it

=

C: = 00

factor

Ol.

-g

= c800:5 CR

aRETURN. "CR

or

ENTER.

nd

sector inter-

is

aRETURN

, Relative Drive 0 : =

of

03

is

standard. If

command

to be other

3.
tthe

The

debug

=

00

and

line.

The

S-WX2

following :

WX2 Format Revision 7.0

1985

(AH) = Relati
(AL) =

Press

"Y"

Before responding, please remember
data

on the target drive will be lost du ring execu-

format

Interleave factor

to begin formatting drive

program

(C) Copyright Western Digital Corp.

ve

dri

ve

number (0·7)

CAUTION

(3

is

XX

standard)

will

display

with interleave

that

the

YY

all

tion of the format program. Hit any other key to
abort

the format program and save the data.

4. Press "Y"

the drive.

"

System responses:

If

displays the
tor

CPU

Nothing done exit

A>

If

program can take up to five minutes. If there are no

resulting errors, the program displays the following
message and returns the operator to

CPU

Format Successful

A>

If

.

immediately terminate, display the following error
message, and return the operator to DOS. XX is the
hexidecimal
page 8.

CPU

Error

A>

If

through 5 with the relative drive number equal to
Otherwise, continue with st

5. Load and execute the
Refer to your
FDlSK

fol

lowed by

any key

to DOS .

"Y" is typed, formatting is initiated. The format

an error occurs whi le formatting , the program will

a second drive

other
fo

response:

response:

S-WX2 BIOS completion code. Refer to

response:

.•. -co

mpletion code

and FORMAT.

aRETURN

Y

than " Y"

llowing message a

XX

is

to be formatted, repeat steps

FDlSK and FORMAT uti lities.

DOS manual for more information on

to beg

CR

is

typed , the program
nd

returns the opera-

DOS .

ep

5.

in

formatting

0 I.

2

3

Auto-Config

Option

This section contains instructions for performing the low
level

or

physical format

of

one

or

two ST506/ST412
Winchester disk drives when using Western Digital's
WDI002S-WX2 controller board, an Auto-Config BIOS

and

ROM,
62-0000

its resident Auto-Config

43-xxx).

sof

tware. (P/N

Auto-Config has four formatting options as folIows:

1.

Format

tering the drive

one

or

two physical drive(s) by en-

parameters

and

bad

track

list via

the keyboard.

2.

Format
drives by entering the drive
der

one physical drive as two virtual

parameters,

partition values,

and

bad

track

cylin-

list via the

keyboard.

3.

Format
the drive tables selected by SW1. The bad
list

4.

Format

one or two physical drive(s) by using

is

entered via the keyboard.

one physical drive as two virtual

track

drives by using the drive tables. Virtual cylinder
partition values

and

bad

track

list

are

entered via

the keyboard.

Drive

Parameters

Drive parameters that have to be established during the
format procedure include the maximum number
ders, maximum number

of

heads, cylinder for reduced

of

cylin-

write current, cyli nder for write preco mpensation, error
burst length , and

Auto-Config supports keyboard entry
It

also supports the pre-programmed drive table entry

parameter
A single

of

jumper

drive

CCS opti

on byte - step rate.

of

these parameters.

s.

chooses between keyboard entry or the use

tables.

The

ability to

enter

co nfi gu ration

of

informatio n from the keyboard may be disabled by placing

jumper

on SW 1

-5

of

a
drive tables are selected by

Virtual

Formatting

the controller board. I f disabled , the

SWl-l

to SWI-4. See page 9.

Auto-Config supports virtua l drive formatting. Virtual
drive formatting

is

a method by which one physical drive

is
split into two logical or virtual drives. The virtual drives
are referenced as Drive

Current vers ions
per drive. Therefore, a
into two virtual drives using the virtu
following table

C:

and Drive D:.

of

DOS allow no more than 32 megabytes

40 megabyte drive may be divided

al

provid~s

an example

option. The

of

how to calculate

total drive capacity and es tablish virtual parameters.

The capacity

(#Cy

If

a drive has 6 12 cylinders, 8 heads, 17 sectors per track a
a 512 byte sector size, then calculate the logical sp l
folIows:

To split the drive into 210gical drives
each

Because (X)(heads)(sectors/track)(sector size)

= 30 megabytes.

Note:

Note: Round X down to the nearest whole number.
Since Y = Total capacity - X

If

this option is chosen, a second physical drive may not be

of

a drive can be easily calculated as folIows:

Capacity =

l.)(#Heads)

of

X and Y respectively, do the follow ing calculation

I megabyte = 20'0 bytes = 1,048,576 bytes.

(#Sec

tors/Track)(Sector Size in Bytes)

Total capacity = 42,614,784 bytes

(612)(8)(17)(512)

of30

and

X = (31,457,280)/(8)(17)(

X = 451.8 = 45] cylinders

Y =

612 -451

The split =

Logical

Format

512)

or

161

451

161

Calculation

or

10

megabytes

nd

it

as

s.

installed on the S-WX2 since DOS will only support two
drives. The ability to virtua
disabled

Low Level

The

by

placing a

Format

low level format

ll

y configure a drive may be

jumper

on

is

runju

st once on a drive that

SWI-6

(page 9).

is

to be
virtually configured. However, the DOS FDISK and
FORMAT utilities must be run on both logical drives.

If

two physical drives are to be formatted, the low level

format

is

run on each drive . As before, the DOS FDISK and

FORMAT utilities are run on each drive .

Auto-Config

The

following instructions contain a detailed step by step
description
Conf

ig procedures.

Formatting

of

the actions required to execute the Auto-

Procedures

Step Instructions

1.

Verify

jumper

settings. Refer to pages 9 and 10.

2. Load and execute the debug utility.

3. At the debug prompt, initiate the S-WX2 format pro­gram by typing the following command line. The
debug prompt

is

the hyphen

-g

= c800:5

"-"

.

CR

4. The S-WX2 format program will display the following

message:

WX2

Format

1985

Ke

y in drive no

Ent

Revision 1'.8 (C) Copyright Western Digital Corp.

and

interleave as folIows: d
no (0-1

ve

factor

ii

separated by

)

(1-16)

aspace

and followed with a

er

= relative

d
ii

= interlea

d and

ii

where

RETURN.
EXAMPLE:

o

03

CR

NOTE: Drive
factor
option must be run twice; once with d
with d

5.

The

following message will be displayed.

Key in disk characteristics as folIows: cce h

eec

= total

=

h
rrr

= s

ppp

= write precomp cylinder (

ee = max correctable e

00

=

Ent

er

each value separated by

comp

lete entry with

C:

of 3 is

= I.

number

tarting

CC

= 0, Drive

standard. If formatting two drives, thi s

number

of cylinder

of

heads

reduced

B option byte (I hex digit )

D: = I.

s (

(1-2

digits)

write

eylinder (1-4 digit

1-4

rror

bur

st length

1-4

digit

rrr

digits)

s)

aspace and

aRETURN.

An interleave

= 0 and agai n

ppp

ee

00

where

s)

(1-2

digit

s)

follow the

EXAMPLE:

306 4

128

128

11

5CR

6. CPU response:

Are you virtually configuring the drive - Answer Y/N

Ent

er

a "Y" and RETURN for yes or "N" and RE-

TURN

for no.

Y CR or N CR

7. If Yes, the followin

Key

in virtual drive size list as vvvv _

where vvvv =

Enter two cylinder numbers, separated by
followed by a RETURN. See page

NOTE: The sum
the maximum number

virtual

g message

drive s

ize (1-4

is

displayed.

..

digit

s)

5.

of

these two numbers cannot exceed

of

available cylinder

aspace

s.

and

4

5

6

EXAMPLE

If

no, continue to next ste

:

153

153CR

p.

8. The following message will be displayed.

Press "y" to begin formatting drive d with interleave ii.

NOTE: d = relative drive

numb

er and

ii

= int e

factor.

"Y" followed by

Type

aRETURN

.

Y CR

System responses:

9.

If

any key
displays the following message and returns the opera­tor to

CPU

Nothing done exit -

A>

If

an error occurs while form atting, the program will
imm
message, and return the operator to
hexidecimal S-

8.
CPU

Error

A>

If

"

Y"

resulting errors, the program displays the following
message.

CPU

00

you want

Th

e use r should type "Y" and a

and

Th

e us
track list.
manufacturer.

procedure

Because
ing an
ical address being marked bad . As
accept a limited

sive media de fects may cau se the

to

terminale

call

y, "TRACK

other

than

"Y" is

typ

ed, the

program

DOS.

respons

e:

returning

to system

...

ediatel y terminate, di splay the following error

DOS.

XX

WX2 BlaS

completion code. See page

response:

....

completion code

is typed, formatting is

XX

initiated.

~

lf

there are no

response:

to

format bad tracks - answer Y/N

RETURN

aRETURN

er

for no.

Y

CR

or

N CR

is prompted to enter, via the keyboard, a bad

This li

st should be provided by the drive

for yes ; "N"

However, due to DOS limitations, this

is not reco

of

the logical addressing used by DOS , mark-

entir

e track bad will result in

mmended

.

mor

e than one log-

DOS can only

number

of

def

ects, a drive with exces-

FORMAT

with an error.

00

BAD -

The

displayed error is typi-

DRIVE

UNUSABLE

7

rl

eave

is the

pro gram

."

As a recommended alternative, execution
utility

program

FORMAT

should correctly locate and

deallocate all media defects.

10.

lf

yes, the following message is displayed .

Key

in bad track list as

where

ccc

= bad

h

track

= bad track head number(I·2 digits)

Type is the
track

s, separate them with spaces, and follow with a

RETURN
EXAMPLE

.

:

160 1 161

The

bad track message will be displayed again. To

terminate bad track

folIows:

ccc

cylinder no (1·4 digits)

cylinder

and head numbers for the bad

1 304 3

entr

223 4 223

y,

h .

type "N" follow ed by a

RETURN.

N CR

11.

The

following message is displayed .

Format Successful - Returning to system

If a second

12

12. Load and

driv

with d = 01.

Exe

TIES. Refer

e is to be formatted, repeat step s 2 through

Otherwi

se, continu e with step 12.

cute the

to

your

FDISK

DOS

information on the se utilities.

CODES

01
02
04

OS

07
09

OB

10

11

20
40
80

BB

FF

COMPLETION
CODE

SUMMARY

Bad Command
Address Mark Not Found
Sector Not Found
Reset Fa

il

ed
Set Parameters Failed
Attempt to

Bad Track
Uncorrecta

ECC Error Corrected
Controller Failure
Seek Failure
Time-out

Und

Read

S-WX2

OMA Across 64K Boundary

bl

e Oata Error

ef

ined Error

Status Failed

Error

Codes

8

..

and

FORMAT

Manual

of

the DOS

2 CR

for

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*

If

you require further information or

other technical support, please contact

your authorized dealer:

W01002S-WX2
Winchester

Oisk

Controller

"

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<::

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cn

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