Maxtor 1925 User Manual

Quickview 40 20/30/40GB AT

Product Manual

May 24, 2005

Part Number: 000001925

Maxtor reserves the right to make changes and improvements to its products, without incurring any obliga-

tion to incorporate such changes or improvements into units previously sold or shipped.

This product or document is protected by copyright and distributed under licences restricting its use, copy-

ing, distributing, and decompilation. No part of this product or document may be reproduced in any form

by any means without prior written authorization of Maxtor and its licensors, if any.

RESTRICTED RIGHTS LEGEND: Use, duplication, or disclosure by the government is subject to

restrictions as set forth in subparagraphs (c)(1)(ii) of the Rights in Technical Data and Computer Software

clause at DFARS 252.227-7013 and FAR 52.227-19.

THIS PUBLICATION IS PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER

EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

OF MERCHANTABILITY, FITNESS FOR A PARTIULAR PURPOSE, OR NON-INFRINGE-

MENT.

You can download Maxtor publications directly from Maxtor at, www.maxtor.com

Part Number: 000001925

Before You Begin: Thank you for your interest in Maxtor hard disk drives. This manual provides technical

information for OEM engineers and systems integrators regarding the installation and use of Maxtor hard

drives. Drive repair should be performed only at an authorized repair center. For repair information, contact

the Maxtor Product Support Center at 1-800-2MAXTOR.

CAUTION: Maxtor hard drives are precision products. Failure to follow these precautions and guidelines

outlined here may lead to product failure, damage and invalidation of all warranties.

1 BEFORE unpacking or handling a drive, take all proper electrostatic discharge (ESD) precau-

tions, including personnel and equipment grounding. Stand-alone drives are sensitive to

electrostatic discharge (ESD) damage.

BEFORE removing drives from their packing material, allow them to reach room temperature.

During handling, NEVER drop, jar, or bump a drive.

Once a drive is removed from the Maxtor shipping container, IMMEDIATELY secure the

drive through its mounting holes within a chassis. Otherwise, store the drive on a padded,

grounded, antistatic surface.

NEVER switch DC power onto the drive by plugging an electrically live DC source cable into

the drive's connector. NEVER connect a live bus to the drive's interface connector.

ELECTRICAL GROUNDING - For proper operation, the drive must be securely fastened to

a device bay that provides a suitable electrical ground to the drive baseplate.

Please do not remove or cover up Maxtor factory-installed drive labels. They contain information required

should the drive ever need repair.Thank you for your interest in Maxtor hard disk drives. This manual pro-

vides technical information for OEM engineers and systems integrators regarding the installation and use of

Maxtor hard drives. Drive repair should be performed only at an authorized repair center. For repair infor-

mation, contact the Maxtor Customer Service Center at 800-2MAXTOR or 1-303-678-2015.

Corporate Headquarters:

500 McCarthy Blvd.

Milpitas, California 95035

Tel: 408-894-5000

Fax: 408-362-4740

Table of Content

Chapter 1

INTRODUCTION

1.1 MAXTOR CORPORATION................................................................. 1-1

1.2 AUDIENCE ..................................................................................... 1-1

1.3 MANUAL ORGANIZATION.................................................................1-2

1.4 TERMINOLOGY AND CONVENTIONS................................................. 1-2

1.5 REFERENCES.................................................................................. 1-4

Chapter 2

PRODUCT DESCRIPTION

2.1 PRODUCT DESCRIPTION.................................................................. 2-1

2.2 KEY FEATURES .............................................................................. 2-1

2.3 REGULATORY COMPLIANCE STANDARDS ........................................ 2-3

2.4 HARDWARE REQUIREMENTS........................................................... 2-3

Chapter 3

PRODUCT SPECIFICATIONS

3.1 MODELS AND CAPACITIES.............................................................. 3-1

3.2 DRIVE CONFIGURATION.................................................................. 3-1

3.3 PERFORMANCE SPECIFICATIONS..................................................... 3-2

3.4 PHYSICAL DIMENSIONS.................................................................. 3-2

3.5 POWER REQUIREMENTS.................................................................. 3-3

3.6 POWER MODE DEFINITIONS ............................................................ 3-3

3.7 EPA ENERGY STAR COMPLIANCE .................................................... 3-3

3.8 ENVIRONMENTAL LIMITS ................................................................ 3-4

3.9 SHOCK AND VIBRATION ................................................................. 3-5

3.10 RELIABILITY SPECIFICATIONS......................................................... 3-6

3.11 EMC/EMI ...................................................................................... 3-7

3.11.1 RADIATED ELECTROMAGNETIC FIELD EMISSIONS - EMC COMPLI-

ANCE......................................................................................3-7

3.11.2 CANADIAN EMISSIONS STATEMENT .......................................3-7

3.12 SAFETY REGULATORY COMPLIANCE .............................................. 3-7

3.13 RoHS COMPLIANCE........................................................................3-7

Quickview 40 20/30/40GB AT

Table of Contents

Chapter 4

INSTALLATION

4.1 SPACE REQUIREMENTS................................................................... 4-1

4.2 UNPACKING INSTRUCTIONS............................................................ 4-2

4.3 HARDWARE OPTIONS..................................................................... 4-5

4.3.1 CABLE SELECT (CS) JUMPER ....................................................4-6

4.3.2 DRIVE SELECT (DS) JUMPER ....................................................4-7

4.3.3 MASTER JUMPER CONFIGURATION ..........................................4-7

4.3.4 JUMPER PARKING (PK) POSITION .............................................4-7

4.3.5 ALTERNATE CAPACITY (AC) ....................................................4-8

4.4 ATA BUS ADAPTER ........................................................................ 4-9

4.4.1 40-PIN ATA BUS CONNECTOR ..................................................4-9

4.4.2 ADAPTER BOARD ....................................................................4-9

4.5 MOUNTING.................................................................................. 4-10

4.5.1 ORIENTATION .......................................................................4-10

4.5.2 CLEARANCE .........................................................................4-12

4.5.3 VENTILATION ........................................................................4-12

4.6 COMBINATION CONNECTOR (J1)................................................... 4-12

4.6.1 DC POWER (J1, SECTION A) ...................................................4-13

4.6.2 EXTERNAL DRIVE ACTIVITY LED .............................................4-13

4.6.3 ATA BUS INTERFACE CONNECTOR (J1, SECTION C) ................4-13

4.7 FOR SYSTEMS WITH A MOTHERBOARD ATA ADAPTER................... 4-14

4.8 FOR SYSTEMS WITH AN ATA ADAPTER BOARD ............................. 4-14

4.8.1 ADAPTER BOARD INSTALLATION ...........................................4-14

4.9 TECHNIQUES IN DRIVE CONFIGURATION........................................ 4-17

4.9.1 THE 528-MEGABYTES BARRIER ..............................................4-17

4.9.2 THE 8.4-GIGABYTES BARRIER ................................................4-17

4.9.3 OPERATING SYSTEM LIMITATIONS .........................................4-18

4.10 SYSTEM STARTUP AND OPERATION ............................................ 4-18

Chapter 5

ATA BUS INTERFACE AND ATA COMMANDS

5.1 INTRODUCTION.............................................................................. 5-1

5.2 MECHANICAL INTERFACE ............................................................... 5-1

5.2.1 SIGNAL CABLE AND CONNECTOR .............................................5-1

5.3 ELECTRICAL INTERFACE ................................................................. 5-1

5.3.1 ATA BUS INTERFACE ...............................................................5-1

5.4 REGISTER ADDRESS DECODING ...................................................... 5-2

5.5 COMMAND INTERFACE................................................................... 5-2

5.5.1 GENERAL FEATURE SET ...........................................................5-2

5.5.2 SUPPORTED COMMANDS ........................................................5-2

Quickview 40 20/30/40GB AT

Table of Contents

Chapter 6

SERVICE AND SUPPORT

6.1 PRODUCT SUPPORT/TECHNICAL ASSISTANCE/CUSTOMER SERVICE. 6-1

Glossary................................................................................................G-1

Quickview 40 20/30/40GB AT

iii

List of Figures

Figure 4-1 Mechanical Dimensions...........................................................4-1

Figure 4-2 Single-Pack Shipping Container ..............................................4-3

Figure 4-3 25-Pack Shipping Container ...................................................4-4

Figure 4-4 Jumper Locations on the Interface Connector ..........................4-5

Figure 4-5 AT Connector and Jumper Location ........................................4-8

Figure 4-6 Mounting Screw Clearance.....................................................4-9

Figure 4-7 Mounting Dimensions .........................................................4-10

Figure 4-8 J1 DC Power and ATA Bus Combination Connector ................4-11

Figure 4-9 Drive Power Supply and ATA Bus Interface Cables .................4-14

Figure 4-10 Completing the Drive Installation ..........................................4-15

Quickview 40 20/30/40GB AT

iii

List of Tables

Table 4-1 AT Jumper Option.........................................................................4-6

Table 4-2 J1 Power Connector, Section A......................................................4-12

Table 4-3 Logical Addressing Form.................................................................4-19

Table 5-1 Supported Commands.................................................................... 5-2

Table 5-2 Identify Drive Command Parameters.....................................................5-

Quickview 40 20/30/40GB AT

Chapter 1

Introduction

1.1

Maxtor Corporation

Maxtor corporation is one of the world’s largest suppliers of hard disk

drive products-products that help store the digital world for millions of

users. Maxtor products serve a range of markets, including personal and

entertainment, small office/home office, mid-sized business and

enterprise

Products

Maxtor storage products include drives and accessories for PC’s,

workstations, RAID products, enterprise applications, enterprise servers,

high-end systems, consumer electronics and personal storage.

Support

Maxtor provides a variety of consumer support options, all designed to

make sure the user gets fast, helpful, accurate information to help resolve

any difficulties. These options include a broad, searchable knowledge

base of FAQ’s, product manuals, installation guides, information on

previously resolved problems, software downloads, and contact by

phone or E-mail with a support person. For more information, visit

www.maxtor.com/en/support.

1.2

Audience

The Quickview 40 20/30/40GB AT product manual is intended for

several audiences. These audiences include: the end user, installer,

developer, consumer electronics original equipment manufacturer

(CE,OEM), and distributor. The manual provides information about

installation, principles of operation, interface command implementation,

and maintenance.

Quickview 40 20/30/40GB AT 1-1

Introduction

1.3

MANUAL ORGANIZATION

This manual is organized into the following chapters:

• Chapter 1 – Introduction

• Chapter 2 – Product Description

• Chapter 3 – Product Specifications

• Chapter 4 – Installation

• Chapter 5 – ATA Bus Interface and ATA Commands

• Chapter 6 – Service and Support

• Glossary

1.4

TERMINOLOGY AND CONVENTIONS

In the Glossary at the back of this manual, you can find definitions for many of the

terms used in this manual. In addition, the following abbreviations are used in this

manual:

• ASIC

• ATA

• bpi

application-specific integrated circuit

advanced technology attachment

bits per inch

• DA

• dB

Double Amplitude (represents ph-pk shaker displacement)

decibels

• dBA

• DPS

• SPS

• ECC

• Kfci

• Hz

decibels, A weighted

Data Protection System

Shock Protection System

error correcting code

thousands of flux changes per inch

hertz

• KB

kilobytes

• LSB

• mA

• MB

least significant bit

milliamperes

megabytes (1 MB = 1,000,000 bytes when referring to disk

transfer rates or storage capacities and 1,048,576 bytes in all

other cases)

• Mb/s

megabits per second

1-2 Quickview 40 20/30/40GB AT

Introduction

• MB/s

• MHz

• ms

megabytes per second

megahertz

milliseconds

most significant bit

millivolts

• MSB

• mV

• ns

nanoseconds

tracks per inch

microseconds

volts

• tpi

• µs

• V

The typographical and naming conventions used in this manual are listed below.

Conventions that are unique to a specific table appear in the notes that follow that

table.

Typographical Conventions:

• Names of Bits: Bit names are presented in initial capitals. An example

is the Host Software Reset bit.

• Commands: Interface commands are listed in all capitals. An example

is WRITE LONG.

• Register Names:Registers are given in this manual with initial capitals.

An example is the Alternate Status Register.

• Parameters: Parameters are given as initial capitals when spelled out,

and are given as all capitals when abbreviated. Examples are Prefetch

Enable (PE), and Cache Enable (CE).

• Hexadecimal Notation:The hexadecimal notation is given in 9-point

subscript form. An example is 30_H.

• Signal Negation: A signal name that is defined as active low is listed

with a minus sign following the signal. An example is RD–.

• Messages: A message that is sent from the drive to the host is listed in

all capitals. An example is ILLEGAL COMMAND.

Naming Conventions:

• Host: In general, the system in which the drive resides is referred to as

the host.

• Computer Voice: This refers to items you type at the computer

keyboard. These items are listed in 10-point, all capitals, Courier font.

An example is FORMAT C:/S.

Quickview 40 20/30/40GB AT 1-3

Introduction

1.5

REFERENCE

For additional information about the ATA interface, refer to the latest revision of the

draft standard on the internet at http://www.t13/ using the link under “1410DAT

Attachment - 6 with Packet Interface (ATA/ATAPI - 6).”

1-4 Quickview 40 20/30/40GB AT

Chapter 2

PRODUCT DESCRIPTION

2.1

PRODUCT DESCRIPTION

Maxtor’s Quickview 40 PATA hard disk drives are part of a family of high

performance, 1-inch-high hard disk drives manufactured to meet the highest product

quality standards.

These hard disk drives are non-removable, 3 1/2-inch hard disks and are available

with the PATA interface.

The Quickview 40 20/30/40GB PATA hard disk drives feature an embedded hard

disk drive controller, and use PATA commands to optimize system performance.

Because the drive manages media defects and error recovery internally, these

operations are fully transparent to the user.

The innovative design of the Quickview 40 hard disk drives incorporate leading edge

technologies such as Ultra ATA/133, Advanced Cache Management, Shock

Protection System^TM(SPS), Data Protection System (DPS), and quiet Drive

Technology (QDT). These enhanced technologies enable Maxtor to produce a family

of high-performance, high-reliability drives.

KEY FEATURES

The Quickview 40 20/30/40GB AT hard disk drives include the following key

features:

General

• Formatted storage capacity of 20.0, 30.0 and 40.0 GB

• Low profile, 17 mm high

• 7200 RPM spin speed

• Industry standard 3 1/2-inch form factor

• Emulation of IBM^®PC AT^®task file register, and all AT fixed disk commands

• Windows NT and 9X Certification

Quickview 40 20/30/40GB AT

2-1

General Description

Performance

• 10.0 ms seek time (Increased in Quiet Mode)

• Average rotational latency of 4.17ms

• New Ultra ATA interface with Maxtor-patented Ultra ATA/133 protocol

supporting burst data transfer rates of 133MB/s.

• 2 MB buffer with 1.9MB (approximate) Advance Cache Management (ACM).

• Advanced Multi-burst ECC on-the-fly

• Support of all standard ATA data transfer modes with PIO mode 4 and

multiword DMA mode 2, and Ultra DMA modes 0, 1, 2, 3, 4, 5 and 6

Reliability

• 57 Byte Reed-Soloman ECC with up to 54 Byte correction capability.

• S.M.A.R.T. 4 (Self-Monitoring, Analysis and Reporting Technology)

• Auto Park and Lock actuator mechanism

• Transparent media defect mapping

• High durability with 100,000 cycles for reliable load/unload function

• High performance, in-line defective sector skipping

• Reassignment of defective sectors discovered in the field, without reformatting

• Shock Protection System to reduce handling induced failures

• Data Protection System to verify drive integrity

• Quiet Drive Technology (QDT)

Versatility

• Power saving modes

• Downloadable firmware

• Cable select feature

• Ability to daisy-chain two drives on the interface

2-2 Quickview 40 20/30/40GB AT

General Description

2.2

REGULATORY COMPLIANCE STANDARDS

Maxtor Corporation’s disk drive products meet all domestic and international product

safety regulatory compliance requirements. Maxtor’s disk drive products conform to

the following specifically marked Product Safety Standards:

• Underwriters Laboratories (UL) Standard 1950. This certificate is a

category certification pertaining to all 3.5-inch series drives models.

• Canadian Standards Association (CSA) Standard C.22.2 No. 1950. This

certificate is a category certification pertaining to all 3.5-inch series

drives models.

• TUV Rheinland Standard EN60 950. This certificate is a category

certification pertaining to all 3.5-inch series drives models.

Product EMI/EMS Qualifications:

• CE Mark authorization is granted by TUV Rheinland in compliance

with our qualifying under EN 55022:1994 and EN 50082-1:1997.

• C-Tick Mark is an Australian authorization marked noted on Maxtor’s

disk drive products. The mark proves conformity to the regulatory

compliance document AS/NZS 3548: 1995 and BS EN 55022: 1995.

• Maxtor’s disk drives are designed as a separate subassembly that conforms to the

FCC Rules for Radiated and Conducted emissions, Part 15 Subpart J; Class B

when installed in a given computer system.

• Approval from Taiwan BSMI. Number: 3892A638

2.3

HARDWARE REQUIREMENTS

The Maxtor Quickview 40 hard disk drives are compatible with the IBM PC AT, and

other computers that are compatible with the IBM PC AT. It connects to the PC

either by means of a third-party IDE-compatible adapter board, or by plugging a cable

from the drive directly into a PC motherboard that supplies an ATA interface.

Quickview 40 20/30/40GB AT

2-3

Chapter 3

PRODUCT SPECIFICATIONS

3.1

Models and Capacities

MODELS NUMBERS

RoHS Compliant

6K020L0

20GB

6K030L0

30GB

6K040L0

40GB

Formatted Capacity (GB LBA Mode)

GB means 1 billion bytes.

Total accessible capacity varies depending on operating environment.

* Complies with European Union Directive on Restriction of Hazardous Substances

(Section 3.13)

3.2

Drive Configuration

MODELS

20GB

30GB

40GB

Data Surfaces/Number of Heads

Number of Disks

Sectors per Drive (max LBA)

Integrated Interface

40,718,160

60,058,656

80,293,248

Maxtor Ultra ATA/133 (ATA-5/ATA-6)

Recording Method

PRML

Servo Type

Embedded

Number of Servo Sectors

Data Zones per Surface

Data Sectors per Track (ID/OD)

180

450/720, 612/990, 720/1140

33.9/25.6, 46.6/36.1, 63.2/49.7

Areal Density (Gbits/in max, ID/OD)

Flux Density (kfci, ID/OD)

OD=352/496/583

ID = 465/639/743

Quickview 40 20/30/40GB AT

3-1

Product Specifications

MODELS

20GB

30GB

40GB

Recording Density (kbpi, ID/OD)

ID = 446/613/713

OD = 338/476/560

Track Density (ktpi)

75.9/75.9/88.7

3-2 Quickview 40 20/30/40GB AT

Product Specifications

3.3

Performance Specifications

MODELS

20GB

30GB

40GB

Seek Times (typical read, ms)

Track-to-Track

0.8

Average (normal seek)

≤10.0

≤18.0

4.17

Full Stroke (normal seek)

Average Latency (ms)

Controller Overhead (ms)

Rotation Speed (RPM ±0.1%)

Data Transfer Speed (MByte/sec max)

<0.3

7200

To/From Interface

(Maxtor Ultra ATA/133, up to)

133

To/From Media (ID/OD up to nn.n, where

nn.n is the maximum transfer rate possible)

ID = 290/399/463

OD = 454/636/738

Sustained (ID/OD up to nn.n, where nn.n is

the maximum transfer rate possible)

ID = 23.9/32.5/38.2

OD = 38.2/52.6/60.5

Data Buffer Size (MB)/Type

2/SDRAM

<5.0

Drive Ready Time (typical sec)

3.4

Physical Dimensions

PARAMETER

VALUE

Height (maximum in mm)

17.5

101.6

146.1

≤510

Width (typical mm)

Length (maximum in mm)

Weight (maximum in grams)

Quickview 40 20/30/40GB AT

3-3

Product Specifications

3.5

Power Requirements

MODE

12V (MA)

5V (MA)

POWER (W)

Spin-up (peak)

Seek

1554.20

440.42

489.99

380.57

34.35

756.04

562.13

442.42

396.41

65.83

22.43

8.10

8.09

7.27

0.75

Read/Write

Idle

Standby

Sleep

34.25

65.77

3.6

Power Mode Definitions

Spin-up

The drive is spinning up following initial application of power and has

not yet reached full speed.

Seek

A random access operation by the drive.

Read/Write

Data is being read from or written to the drive.

Idle

The drive is spinning, the actuator is parked and powered off and all

other circuitry is powered on.

The drive is capable of responding to read commands within 40 ms.

Standby

The motor is not spinning. The drive will leave this mode upon receipt

of a command that requires disk access. The time-out value for this

mode is programmable. The buffer is active to accept write data.

Sleep

This is the lowest power state – with the interface set to inactive. A

software or hardware reset is required to return the drive to the Standby

state.

3.7

EPA Energy Star Compliance

Maxtor Corporation supports the goals of the U.S. Environmental

Protection Agency’s Energy Star program to reduce the electrical power

consumption of computer equipment.

3-4 Quickview 40 20/30/40GB AT

Product Specifications

3.8

Environmental Limits

PARAMETER

NON-OPERATING/

STORAGE

OPERATING

Temperature

5° C to 55° C

low temperature (-

40° C)

(with no ARR impact)

0° C to 60° C

(margin demonstrated )

high temperature

(71° C) per MIL-

STD-810E, method

501.3, climatic cate-

gory; hot-induced con-

ditions.

Thermal Gradient

Relative Humidity

Wet Bulb

30° C per hour (maximum)

5% to 95% (non-condensing)

30° C (maximum)

Altitude (relative to sea level)

-650 to 10,000 feet

-650 to 40,000 feet

Acoustic Noise

IDLE MODE

NORMAL SEEK MODE

(Track Following at Speed)

Fluid Bearing

2.9 bel average

3.3 bel maximum

3.0 bel average

3.3 bel maximum

Notes:

1. Margin Demonstrated implies the product will operate at the stated

conditions with an acceptable impact to the ARR specification for

any OEM requiring those values in their purchase specification.

2. The testing performed by Maxtor is consistent with ISO 7779.

Variation in acoustic levels from the idle specification may occur

due to offline activity according to the SMART specification and/

or atmospheric conditions.

Quickview 40 20/30/40GB AT

3-5

Product Specifications

3.9

Shock and Vibration

PARAMETER

OPERATING

NON-OPERATING

Mechanical Shock

Rotational Shock

R=0.988/shock at 60 Gs;

R= 0.999/shock at 30 Gs

1 msec, 1/2 sine

R=0.90@>= 300G 1 disk

R=0.95@>= 250G, 1 disk

R=0.99@>= 200G, 1 disk

R=0.988 @ 2000 rad/sec

R=0.95 @ 20K rad/sec ,

0.5ms to 1ms input

R=0.99 @ 15K rad/sec ,

1.5ms to 2ms input

Rotational Random

Vibration

5 - 2000 Hz

4.50 rad/sec RMS Overall

2 - 300 Hz

96.5 rad/sec RMS

Random Vibration

5 - 2000 Hz

1.15 GRMS Overall

PSD:

7 - 800 Hz at 3.08 GRMS

No Damage

Swept Sine Vibration

(1 octave/minute,

peak amplitude)

10 to 300 Hz

1.0 G (0 to peak) amplitude,

1 octave per minute

301 to 400 Hz

401 to 500 Hz

0.25 G (0 to peak) amplitude,

1 octave per minute

0.0625 G (0 to peak) amplitude,

1 octave per minute

Operating Sine

Vibration,

5-1500 Hz

Frequency (Hz)/Acceleration (Gpk)

0.25 octave/min.

5/ 0.40” DA

8.6/ 0.40” DA

9/ 1.500

300/ 1.500

600/ 0.250

650/ 0.070

1500/ 0.070

3-6 Quickview 40 20/30/40GB AT

Product Specifications

3.10

Reliability Specifications

Annualized Return Rate

<1.0%

Annualized Return Rate (ARR) indicates the average against

products shipped. ARR includes all reasons for returns

(failures, handling, damage, NDF) but does not include

inventory credit returns.

Load/Unload Cycles

100,000

This indicates the average minimum cycles for reliable load/

unload function.

Data Reliability

<1 per 10e15 bits read

Data errors (non-recoverable). Average data error rate

allowed with all errorrecovery features activated.

Component Design Life

5 years (minimum)

Component design life is defined as a.) the time period

before identified wear-out mechanisms impact the failure

rate, or b.) the time period up to thewear-out point when

useful component life expires.

3.11

EMC/EMI

3.11.1 Radiated Electromagnetic Field Emissions - EMC Compliance

The hard disk drive mechanism is designed as a subassembly for

installation into a suitable enclosure and is therefore not subject to

Subpart J of Part 15 of FCC Rules (47CFR15) or the Canadian

Department of Communications Radio Interference Regulations.

Although not required, the disk mechanism has been tested within a

suitable end-use product and found to comply with Class B limits of the

FCC Rules and Regulations of the Canadian Department of

Communications.

The CE Marking indicates conformity with the European Union Low

Voltage Directive (73/23/EEC) when the disk mechanism is installed in

a typical personal computer. Maxtor recommends that testing and

analysis for EMC compliance be performed with the disk mechanism

installed within the user's end-use application.

Quickview 40 20/30/40GB AT

3-7

Product Specifications

3.11.2 Canadian Emissions Statement

This digital apparatus does not exceed the Class B limits for radio noise

emissions from digital apparatus as set out in the radio interference

regulations of the Canadian department of communications.

Le present appareil numerique n'emet pas de bruit radioelectriques

depassant les limites applicables aux appareils numeriques de Class B

prescrites dans le reglement sur le brouillage radioelectrique edicte pa le

ministere des communications du Canada.

3.12

3.13

Safety Regulatory Compliance

All Maxtor hard drives comply with relevant product safety standards

such as CE, CUL, TUV and UL rules and regulations. As delivered,

Maxtor hard drives are designed for system integration before they are

used.

RoHS Compliance

Maxtor Quickview 40 drives meet the Restriction of Hazardous Substances (RoHS)

compliance directive of the European Union as applicable. The full description of

this legislation, commonly called RoHS, is “Directive 2002/95/EC of the European

Parliament and the Council of 27 January 2003 on the restriction of the use of certain

hazardous substances in electrical and electronic equipment”.

3-8 Quickview 40 20/30/40GB AT

Product Specifications

Quickview 40 20/30/40GB AT

3-9

Chapter 4

INSTALLATION

This chapter explains how to unpack, configure, mount, and connect the

Maxtor Quickview 40 20/30/40GB AT hard disk drive prior to operation.

It also explains how to start up and operate the drive.

4.1

SPACE REQUIREMENTS

The Maxtor Quickview 40 hard disk drives are shipped without a

faceplate. Figure 4-1 shows the external dimensions of the Maxtor

Quickview 40 20/30/40GB AT drives.

17.5 mm

146.1 mm

(max)

101.6 mm

(4.00 inches)

Figure 4-1 Mechanical Dimensions of Maxtor Quickview 40 Hard Disk Drive

Quickview 40 20/30/40GB AT

4-1

Installation

4.2

UNPACKING INSTRUCTIONS

CAUTION: The maximum limits for physical shock can be exceeded if the

drive is not handled properly. Special care should be

taken not to bump or drop the drive. It is highly recommended

that Maxtor DiamondMax Plus8 drives are not stacked or placed

on any hard surface after they are unpacked. Such handling could

cause media damage.

1. Open the shipping container and remove the packing assembly

that contains the drive.

2. Remove the drive from the packing assembly.

CAUTION: During shipment and handling, the antistatic electrostatic dis-

charge (ESD) bag prevents electronic component

damage due to electrostatic discharge. To avoid accidental dam-

age to the drive, do not use a sharp instrument to open the ESD

bag and do not touch PCB components. Save the packing mate-

rials for possible future use.

3. When you are ready to install the drive, remove it from the ESD

bag.

4-2 Quickview 40 20/30/40GB AT

Installation

Figure 4-2 shows the packing assembly for a single Maxtor Quickview

40 hard disk drive. A 20 and 25-pack shipping container is available for

multiple drive shipments.

Figure 4-2 Single-Pack Shipping Container

Quickview 40 20/30/40GB AT

4-3

Installation

Figure 4-3 25-Pack Shipping Container

4.3

HARDWARE OPTIONS

The configuration of a Maxtor Quickview 40 20/30/40GB AT hard disk

drive depends on the host system in which it is to be installed. This

section describes the hardware options that you must take into account

prior to installation.

4-4 Quickview 40 20/30/40GB AT

Installation

AT Interface Connector

Back of Drive

Cable

Select

Setting

Default Jumper

Setting

(This is identical for both drive 0 and drive 1)

Master

Setting

Slave

Setting

Jumper in

Park Position

DS with CS

for Slaves not

supporting DASP

Figure 4-4 Jumper Locations on the Interface Connector

The configuration of the following Three jumpers controls the drive’s

five modes of operation:

• CS – Cable Select

• DS – Drive Select

• PK– Jumper Parking Position (Slave mode)

• AC– Alternate Capacity

The AT PCB has two jumper locations provided to configure the drive in

a system. The default configuration for the drive as shipped from the

factory is with a jumper across the DS location, and open positions in

the CS, PK and AC positions.

Table 4-1 defines the operation of the master/slave jumpers and their

function relative to pin 28 on the interface. 1 indicates that the specified

jumper is installed; 0 indicates that the jumper is not installed.

Quickview 40 20/30/40GB AT

4-5

Installation

Table 4-1 AT Jumper Options

PIN 28 DESCRIPTION

Drive is configured as a slave

Gnd

Drive is configured as Master (Device 0) when

attached to the end of a 80 conductor Ultra ATA

cable

Drive is configured as a Master

Open

Drive is configured as a Slave (Device 1) when

attached to the middle of a 80 conductor Ultra ATA

cable

Drive is configured as a Master with an attached slave

that does not support DASP

Note: In Table 4-1, a 0 indicates that the jumper is removed,

a 1 indicates that the jumper is installed, and an X indi-

cates that the jumper setting does not matter.

4.3.1

Cable Select (CS) Jumper

When a Maxtor Quickview 40 20/30/40GB AT hard disk drive and

another ATA hard disk drive are daisy-chained together, they can be

configured as Master or Slave either by the CS or DS jumpers. To

configure the drive as a Master or Slave with the CS feature, the CS

jumper is installed (1). The drive's position on the 80 conductor Ultra

ATA data cable then determines whether the drive is a Master (Device

0) or a Slave (Device 1). If the drive is connected to the end of the Ultra

(cable Select) data cable the drive is a Master. If the drive is connected

to the middle connection it is set as a Slave.

Once you install the CS jumper, the drive is configured as a Master or

Slave by the state of the Cable Select signal: pin 28 of the ATA bus

connector. Please note that pin 28 is a vendor-specific pin that Maxtor

is using for a specific purpose. More than one function is allocated to

CS, according to the ATA CAM specification (see reference to this

specification in Chapter 1). If pin 28 is a 0 (grounded), the drive is

configured as a Master. If it is a 1 (high), the drive is configured as a

Slave. In order to configure two drives in a Master/Slave relationship

using the CS jumper, you need to use a cable that provides the proper

signal level at pin 28 of the ATA bus connector. This allows two drives

to operate in a Master/Slave relationship according to the drive cable

placement.

The Maxtor Quickview 40 20/30/40GB AT hard disk drives are shipped

from the factory as a Master (Device 0 - CS jumper installed). To

configure a drive as a Slave (Device 1- DS scheme), the CS jumper must

be removed. In this configuration, the spare jumper removed from the

4-6 Quickview 40 20/30/40GB AT

Installation

CS position may be stored on the PK jumper pins.

4.3.2

Drive Select (DS) Jumper

You can also daisy-chain two drives on the ATA bus interface by using

their Drive Select (DS) jumpers. To use the DS feature, the CS jumper

must not be installed.

To configure a drive as the Master (Device 0), a jumper must be installed

on the DS pins.

Note: The order in which drives are connected in a daisy chain

has no significance.

4.3.3

Master Jumper configuration

In combination with the current DS or CS jumper settings, the Slave

Present (SP) jumper can be implemented if necessary as follows:

Note: The CS position doubles as the Slave present on this

drive.

• When the drive is configured as a Master (DS jumper installed

or CS jumper installed, and the Cable Select signal is set to

(0), adding an additional jumper (both jumpers DS and CS now

installed) will indicate to the drive that a Slave drive is

present. This Master with Slave Present jumper configuration

should be installed on the Master drive only if the Slave drive

does not use the Drive Active/Slave Present (DASP–) signal

to indicate its presence.

4.3.4

Jumper Parking (PK) Position

The PK position is used as a holding place for the jumper for a slave drive

in systems that do not support Cable Select. The pins used for the

parking position are vendor unique.

Quickview 40 20/30/40GB AT

4-7

Installation

4.3.5

Alternate Capacity (AC)

For user capacities below 66,055,248 sectors (32GB), inserting the AC

jumper limits the Number of Cylinders field 1 to a value of 16,383, as

reported in IDENTIFY DEVICE data word. This allows software drivers

to determine that the actual capacity is larger than indicated by the

maximum CHS, requiring LBA addressing to use the full capacity.

A summary of these effects for the Maxtor Quickview 40 drives is

shown in the following table:

AC JUMPER OUT

C=16,383

H=16

AC JUMPER IN

C=4,092

H=16

20GB

S=63

LBA=40,718,160

LBA=39,876,479

C=16,383

H=16

S=63

LBA=60,058,656

C=16,383

H=16

C=16,383

H=16

S=63

LBA=66,055,247

C=16,383

H=16

30GB

40GB

S=63

LBA=80,293,248

LBA=66,055,247

Pin 1 of AT Connector

Pin 1

JPM Pin 1

4.55±0.50

7.22±0.50

(to pin center)

29.78±0.50

Connector Side

(to pin center)

Figure 4-5 AT Connector and Jumper Location

4-8 Quickview 40 20/30/40GB AT

Installation

CAUTION: The PCB is very close to the mounting holes. Do not exceed the specified penetration for the

mounting screws. The specified screw penetration allows full use of the mounting hole threads,

while avoiding damaging or placing unwanted stress on the PCB. Figure 4-7 specifies the mini-

mum clearance between the PCB and the screws in the mounting holes.

The Maxtor hard drive design allows greater shock tolerance than that afforded by larger, heavi-

er drives. The drive may be mounted in any attitude using four size 6-32 screws with 3 mm

maximum penetration and a maximum torque of 5-inch pounds. Allow adequate ventilation to

the drive to ensure reliable operation.

Figure 4-6 Mounting Screw Clearance

3.00 mm Maximum

Drive

Mounting

Screw

Printed-

Circuit

Board

Printed-

Circuit

Board

Head/Disk

Assembly

4.4

MOUNTING

Drive mounting orientation, clearance, and ventilation requirements are

described in the following subsections.

Quickview 40 20/30/40GB AT

4-9

Installation

4.4.1

Orientation

The mounting holes on the Maxtor Quickview 40 20/30/40GB AT hard

disk drives allow the drive to be mounted in any orientation. Figure 4-6

show the location of the three mounting holes on each side of the drive.

The drive can also be mounted using the four mounting hole locations

on the PCB side of the drive.

Note: It is highly recommended that the drive is hard mounted

on to the chassis of the system being used for general

operation, as well as for test purposes. Failure to hard

mount the drive can result in erroneous errors during

testing. Drives can be mounted in any orientation. Nor-

mal position is with the PCB facing down. All dimen-

sions are in millimeters. For mounting, #6-32 UNC

screws are recommended.

6.35 ±0.25

101.60

±0.25

147.0

Max.

44.45

±0.25

41.60

±0.25

41.28

±0.50

28.50 ±0.50

3.18 ±0.25

95.25

±0.25

101.60

±0.25

17.5 mm

Max.

Figure 4-7 Mounting Dimensions Clearance

Clearance from the drive to any other surface (except mounting

surfaces) must be a minimum of 1.25 mm (0.05 inches).

4-10 Quickview 40 20/30/40GB AT

Installation

4.4.2

4.5

Ventilation

The Maxtor Quickview 40 20/30/40GB AT hard disk drives operate

without a cooling fan, provided the ambient air temperature does not

exceed 131×F (55×C) at any point along the drive form factor

envelope.

COMBINATION CONNECTOR (J1)

J1 is a three-in-one combination connector. The drive’s DC power can

be applied to section A. The ATA bus interface (40-pin) uses section C.

The connector is mounted on the back edge of the printed-circuit board

(PCB), as shown in Figure 4-7.

Center

Key Slot

Pin 1

J1 IDE (40-Pin)/DC (4-Pin)

Combination Connector

4-Pin DC Power

40-Pin IDE

Pin 1

(J1 Section A)

(J1 Section C)

Pin 40

Figure 4-8 J1 DC Power and ATA Bus Combination Connector

Quickview 40 20/30/40GB AT

4-11

Installation

4.5.1

DC Power (J1, Section A)

The recommended mating connectors for the +5 VDC and +12 VDC

input power are listed in Table 4-2.

Table 4-2 J1 Power Connector, Section A

NUMBER

VOLTAGE

LEVEL

MATING CONNECTOR TYPE AND PART NUMBER

(OR EQUIVALENT)

J1 Section A (4-Pin):

+12 VDC

4-Pin Connector:

AMP P/N 1-480424-0

Loose piece contacts:

AMP P/N VS 60619-4

Strip contacts:

Ground

Return for

+12 VDC

AMP P/N VS 61117-4

Ground

Return for

+5 VDC

Note: Labels indicate the pin numbers on the connector. Pins 2

and 3 of section A are the +5 and +12 volt returns and

are connected together on the drive.

4.5.2

4.5.3

External Drive Activity LED

An external drive activity LED may be connected to the DASP-I/O pin 39

on J1. For more details, see the pin description in Table 6-1.

ATA Bus Interface Connector (J1, Section C)

On the Maxtor Quickview 40 20/30/40GB AT hard disk drives, the ATA

bus interface cable connector (J1, section C) is a 40-pin Universal

Header, as shown in Figure 4-7.

To prevent the possibility of incorrect installation, the connector has

been keyed by removing Pin 20. This ensures that a connector cannot

be installed upside down.

See Chapter 5, “ATA Bus Interface and ATA Commands,” for more

detailed information about the required signals. Refer to Table 5-1 for

the pin assignments of the ATA bus connector (J1, section C).

4.6

FOR SYSTEMS WITH A MOTHERBOARD ATA ADAPTER

You can install the Maxtor Quickview 40 20/30/40GB AT hard disk

drives in an AT-compatible system that contains a 40-pin ATA bus

4-12 Quickview 40 20/30/40GB AT

Installation

connector on the motherboard.

To connect the drive to the motherboard, use a 40 conductor ribbon

cable (80 conductor ribbon cable if using Ultra ATA/66/100 or /133

drive) 18 inches in length or shorter. Ensure that pin 1 of the drive is

connected to pin 1 of the motherboard connector.

4.7

FOR SYSTEMS WITH AN ATA ADAPTER BOARD

To install the Maxtor Quickview 40 20/30/40GB AT hard disk drive in

an AT-compatible system without a 40-pin ATA bus connector on its

motherboard, you need a third-party IDE-compatible adapter board.

4.7.1

Adapter Board Installation

Carefully read the manual that accompanies your adapter board before

installing it. Make sure that all the jumpers are set properly and that

there are no address or signal conflicts. You must also investigate to see

if your AT-compatible system contains a combination floppy and hard

disk controller board. If it does, you must disable the hard disk drive

controller functions on that controller board before proceeding.

Once you have disabled the hard disk drive controller functions on the

floppy/hard drive controller, install the adapter board. Again, make sure

that you have set all jumper straps on the adapter board to avoid

addressing and signal conflicts.

Note: For Sections 4.7 and 4.8, power should be turned off

on the computer before installing the drive.

Quickview 40 20/30/40GB AT

4-13

Installation

4.7.1.1 Connecting the Adapter Board and the Drive

Use a 40-pin ribbon cable to connect the drive to the board. See Figure

4-8. To connect the drive to the board:

1. Insert the 40-pin cable connector into the mating connector of the adapter

board. Make sure that pin 1 of the connector matches with pin 1 on the

cable.

2. Insert the other end of the cable into the header on the drive.

When inserting this end of the cable, make sure that pin 1 of the

cable connects to pin 1 of the drive connector.

3. Secure the drive to the system chassis by using the mounting

screws, as shown in Figure 4-9.

ATA-Bus

Key Slot

Interface

Connector

Pin 1

40-Pin Header

ATA-Bus

Interface Cable

DC Power

Connector

Power Supply Cable

(3-Pin or 4-Pin)

Bevel

Figure 4-9 Drive Power Supply and ATA Bus Interface Cables

4-14 Quickview 40 20/30/40GB AT

Installation

Mounting Screws

ATA-Bus Interface Cable

Mounting Bracket

Figure 4-10 Completing the Drive Installation

4.8

TECHNIQUES IN DRIVE CONFIGURATION

The 528-Megabytes Barrier

4.8.1

Older BIOS that only support Int 13 commands for accessing ATA drives

through DOS based operating systems will be limited to use only 1024

cylinders. This will reduce the effective capacity of the drive to

528Mbytes.

Whenever possible the Maxtor Quickview 40 20/30/40GB AT drive

should be used on systems that support LBA translation to ensure the

use of the entire capacity of the disk drive. If that is not possible the

following are some techniques that can be used to overcome this

barrier.

Quickview 40 20/30/40GB AT

4-15

Installation

• Use a third party software program that translates the hard

drive parameters to an acceptable configuration for MS-DOS.

• Use a hard disk controller that translates the hard drive

parameters to an appropriate setup for both MS-DOS and the

computer system’s ROM-BIOS.

• Insert the Alternate Capacity (AC) jumper on the drive (see

Section 4.3.5).

4.8.2

The 8.4-Gigabytes Barrier

Newer BIOS’s allow users to configure disk drives to go beyond the

528MB barrier by using several BIOS translation schemes. However,

while using these translations the BIOS using Int 13 functions are

limited to 24 bits of addressing which results in another barrier at the

8.4GB capacity.

To overcome this barrier a new set of Int 13 extensions are being

implemented by most BIOS manufacturers. The new Int 13 extension

allows for four words of addressing space (64 bits) resulting in 9.4

Terrabytes of accessible space.

Whenever possible the Maxtor Quickview 40 20/30/40GB AT drive

should be used on systems with BIOS that support Int 13 extensions. If

that is not possible the following are some techniques that can be used

to overcome this barrier: Use a third party software that supplements

the BIOS and adds Int 13 extension support.

• Obtain a BIOS upgrade from the system board manufacturer.

Many system board manufacturers allow their BIOS to be

upgraded in the field using special download utilities.

Information on BIOS upgrades can be obtained on the System

Board Customer Service respective web sites on the Internet.

• Insert the Alternate Capacity (AC) jumper on the drive (see

Section 4.3.5).

4.8.3

Operating system limitations

Most popular operating systems available today have additional

limitations which affect the use of large capacity drives. However, these

limitations can not be corrected on the BIOS and it is up to the operating

system manufacturers to release improved versions to address these

problems.

The most popular operating systems available today, DOS and Win 95,

use a File Allocation Table (FAT) size of 16 bits which will only support

partitions up to 2.1GB. A newer release of Win 95 called OSR2 with a

32 bit FAT has been released to system manufacturers only. This new

FAT size table will support partitions of up to 2.2 Terrabytes.

4-16 Quickview 40 20/30/40GB AT

Installation

4.9

SYSTEM STARTUP AND OPERATION

Once you have installed the Maxtor Quickview 40 20/30/40GB AT hard

disk drive, and adapter board (if required) in the host system, you are

ready to partition and format the drive for operation. To set up the drive

correctly, follow these steps:

1. Power on the system.

2. Run the SETUP program. This is generally on a Diagnostics or

Utilities disk, or within the system’s BIOS. Some system BIOS

have an auto-detecting feature making SETUP unnecessary.

3. Enter the appropriate parameters.

The SETUP program allows you to enter the types of optional hardware

installed—such as the hard disk drive type, the floppy disk drive

capacity, and the display adapter type. The system’s BIOS uses this

information to initialize the system when the power is switched on. For

instructions on how to use the SETUP program, refer to the system

manual for your PC.

During the AT system CMOS setup, you must enter the drive type for

the Maxtor Quickview 40 hard disk drives. The drive supports the

translation of its physical drive geometry parameters such as cylinders,

heads, and sectors per track to a logical addressing mode. The drive can

work with different BIOS drive-type tables of the various host systems.

You can choose any drive type that does not exceed the capacity of the

drive. Table 4-3 gives the logical parameters that provide the maximum

capacity on the Maxtor Quickview 40 family of hard disk drives.

Table 4-3 Logical Addressing Format

MODELS

CYL

SPT

MAX LBA

CAPACITY

6E020L0

6E030L0

6E040L0

40,395

40,718,160

60,058,656

80,293,248

20GB

30GB

40GB

59,582

79,656

Note: *Capacity may be restricted to 8.4GB (or less) due to

system BIOS limitations. Check with your system man-

ufacturer to determine if your BIOS supports LBA Mode

for hard drives greater than 8.4GB. Default logical cyl-

inders is limited to 16,383 as per the ATA-4 specifica-

tions.

Quickview 40 20/30/40GB AT

4-17

Installation

To match the logical specifications of the drive to the drive type of a

particular BIOS, consult the system’s drive-type table. This table

specifies the number of cylinders, heads, and sectors for a particular

drive type.

You must choose a drive type that meets the following requirements

for the 20, 30 or 40 GB:

Logical Cylinders x Logical Heads x Logical Sectors/Track x 512 =

8,455,200,768

4. Boot the system using the operating system installation disk—

for example, MS-DOS—then follow the installation instructions

in the operating system manual.

4-18 Quickview 40 20/30/40GB AT

Chapter 5

ATA BUS INTERFACE AND ATA COMMANDS

This chapter describes the interface between Quickview 40 hard disk drives and the

ATA bus. The commands that are issued from the host to control the drive are listed,

as well as the electrical and mechanical characteristics of the interface.

5.1

INTRODUCTION

Maxtor Quickview 40 hard disk drives use the standard ATA/ATAPI interface.

Support of various options in the standard are explained in the following sections.

5.2

MECHANICAL INTERFACE

Signal Cable and Connector

5.2.1

The Maxtor Quickview 40 hard disk drive contains a 40-pin unitized connector for

both signal and power connections as well as configuration jumpers. The

dimensions and specifications of the unitized connector comply with Annex. A in

the ATA/ATAPI standard.

The Maxtor Quickview 40 drives require the use of an 80 conductor cable (ATA/

ATAPI-6, Annex. A, Figure A.4 and description) to support the drive’s Ultra DMA

capability.

5.3

ELECTRICAL INTERFACE

ATA Bus Interface

5.3.1

5.3.1.1 Electrical Characteristics

Signals on the ATA interface are assigned to connector pins according to Annex. A in

the ATA/ATAPI-6 standard for the 80 conductor cable assembly. The signaling

protocol complies with clause 9 and signal timing complies with clause 10 of the

standard.

The Maxtor Quickview 40 hard disk drives support all Ultra DMA Data Transfer

modes (0 - 5) defined in the ATA/ATAPI-6 standard. In addition, these drives support

Mode 6, and can send and receive data at the full 133MB/s transfer rate.

Hosts may assert the RESET- signal for longer than the minimum. When power is

applied with RESET- asserted, the Maxtor Quickview 40 disk media will not begin

to spin up until RESET- is negated. This may reduce maximum current consumption

for the overall system.

Quickview 40 20/30/40GB AT

5-1

ATA Bus Interface and ATA Commands

5.4

The Maxtor Quickview 40 hard disk drives allow their host systems to address the full

set of command and control registers as specified in clause 7 of the ATA/ATAPI-6

standard.

5.5

COMMAND INTERFACE

General Feature Set

5.5.1

The µProcessor, Disk Controller, and ATA Interface electronics are contained in a

proprietary ASIC developed by Maxtor.

5.5.2

Supported Commands

The Maxtor Quickview 40 hard disk drives support all the mandatory commands from

the general feature set for devices not supporting the Packet command feature set.

Refer to the ATA/ATAPI-6 standard for a detailed description of these commands.

The IDENTIFY DRIVE command, however, is elaborated in the section "Identify

Drive Command" on page 5-5.

Table 5-1 lists the supported commands.

Table 5-1 Supported Commands

Feature

Value(s)

Command

Code

CHECK POWER MODE

DEVICE CONFIGURATION FREEZE LOCK

DEVICE CONFIGURATION IDENTIFY

DEVICE CONFIGURATION RESTORE

DEVICE CONFIGURATION SET

DOWNLOAD MICROCODE

EXECUTE DRIVE DIAGNOSTIC

FLUSH CACHE

98h, E5h

B1h

C1h

B1h

C2h

B1h

C0h

B1h

C3h

92h

07h, 01h

90h

E7h

IDENTIFY DRIVE

ECh

IDLE

97h, E3h

95h, E1h

00h

IDLE IMMEDIATE

NOP

5-2 Quickview 40 20/30/40GB AT

ATA Bus Interface and ATA Commands

Table 5-1 Supported Commands

Feature

Command

Code

Value(s)

READ BUFFER

READ DMA

E4h

C8h, C9h

22h, 23h

C4h

READ LONG

READ MULTIPLE

READ NATIVE MAX ADDRESS

READ SECTOR(S)

F8h

20h, 21h

40h, 41h

F6h

READ VERIFY SECTOR(S)

SECURITY DISABLE PASSWORD

SECURITY ERASE PREPARE

SECURITY ERASE UNIT

SECURITY FREEZE LOCK

SECURITY SET PASSWORD

SECURITY UNLOCK

F3h

F4h

F5H

F1h

F2h

SEEK

70h

SET FEATURES

EFh

Note 1

00h

SET MAX ADDRESS

F9h

SET MAX SET PASSWORD

SET MAX LOCK

F9h

01h

F9h

02h

SET MAX UNLOCK

F9h

03h

SET MAX FREEZE LOCK

SET MULTIPLE MODE

SLEEP

F9h

04h

C6h

99h, E6h

B0h

SMART DISABLE OPERATIONS

SMART ENABLE OPERATIONS

SMART ENABLE/DISABLE ATTRIBUTE AUTOSAVE

D9h

D8h

D2h

B0h

Quickview 40 20/30/40GB AT

5-3

ATA Bus Interface and ATA Commands

Table 5-1 Supported Commands

Feature

Value(s)

Command

Code

Command

SMART EXECUTE OFF-LINE IMMEDIATE

SMART READ DATA

SMART READ LOG

B0h

D4h

B0h

D0h

D5h

DAh

D3h

D6h

B0h

SMART RETURN STATUS

SMART SAVE ATTRIBUTE VALUES

SMART WRITE LOG

STANDBY

B0h

96h, E2h

94h, E0h

E8h

STANDBY IMMEDIATE

WRITE BUFFER

WRITE DMA

CAh, CBh

C5h

WRITE MULTIPLE

WRITE PIO OVERLAP

WRITE SECTOR(S)

34h

30h, 31h

Note: 1. As defined in the ATA/ATAPI-6 standard.

5-4 Quickview 40 20/30/40GB AT

ATA Bus Interface and ATA Commands

Identify Drive Command

This command allows the host to receive parameter information from the drive.

When the command is received, the drive:

1. Sets BSY

2. Stores the required parameter information in the sector buffer

3. Sets the DRQ bit

4. Generates an interrupt

The host may then read the information out of the sector buffer. Parameter words in

the buffer are shown in Table 5-2.

Note: All reserved bits or words should be zeroes.

Table 5-2 Identify Drive Command Parameters

Word

CONTENT DESCRIPTION

General configuration bit-significant information:

15:

14-8:

0 = ATA device

Retired

1 = removable media device

Obsolete

5-3:

Retired

Response incomplete

Retired

Reserved

Obsolete

Specific configuration

Obsolete

4-5

Retired

Obsolete

7-8

Reserved for assignment by the CompactFlash Association

Retired

10-19

Serial number (20 ASCII characters)

Quickview 40 20/30/40GB AT

5-5

ATA Bus Interface and ATA Commands

Table 5-2 Identify Drive Command Parameters

CONTENT DESCRIPTION

Word

20-21

Retired

Obsolete

23-26

27-46

Firmware revision (8 ASCII characters)

Model number (40 ASCII characters)

15-8:

7-0:

80h

00h = Reserved

01h-FFh: = Maximum number of sectors that shall be transferred per interrupt on

READ/WRITE MULTIPLE commands

Reserved

Capabilities

15-14: Reserved for the IDENTIFY PACKET DEVICE command.

13:

1 = Standby timer values as specified in this standard are supported.

0 = Standby timer values shall be managed by the device

12:

11:

10:

Reserved for the IDENTIFY PACKET DEVICE command.

1 = IORDY supported. 0 = IORDY may be supported

1 = IORDY may be disabled

1 = LBA supported

1 = DMA supported.

7-0:

Retired

Capabilities

15:

14:

13-2:

Shall be cleared to zero.

Shall be set to one.

Reserved.

Obsolete

Shall be set to one to indicate a device specific Standby timer value

minimum.

51-52

Obsolete

5-6 Quickview 40 20/30/40GB AT

ATA Bus Interface and ATA Commands

Table 5-2 Identify Drive Command Parameters

CONTENT DESCRIPTION

Word

15-3:

Reserved

1 = the fields reported in word 88 are valid.

0 = the fields reported in word 88 are not valid

1 = the fields reported in words (70:64) are valid.

0 = the fields reported in words (70:64) are not valid

Obsolete

54-58

Obsolete

15-9:

Reserved

1 = Multiple sector setting is valid

7-0:

xxh = Current setting for number of sectors that shall be transferred per

interrupt on R/W Multiple command

60-61

Total number of user addressable sectors

Obsolete

15-11: Reserved

10:

1 = Multiword DMA mode 2 is selected.

0 = Multiword DMA mode 2 is not selected

1 = Multiword DMA mode 1 is selected.

0 = Multiword DMA mode 1 is not selected

1 = Multiword DMA mode 0 is selected.

0 = Multiword DMA mode 0 is not selected

7-3:

Reserved

1 = Multiword DMA mode 2 and below are supported

1 = Multiword DMA mode 1 and below are supported

1 = Multiword DMA mode 0 is supported

Reserved

15-8:

7-0:

PIO modes supported

Minimum Multiword DMA transfer cycle time per word

15-0: Cycle time in nanoseconds

Manufacturer’s recommended Multiword DMA transfer cycle time

15-0: Cycle time in nanoseconds

Quickview 40 20/30/40GB AT

5-7

ATA Bus Interface and ATA Commands

Table 5-2 Identify Drive Command Parameters

Word

CONTENT DESCRIPTION

Minimum PIO transfer cycle time without flow control

15-0:

Minimum PIO transfer cycle time with IORDY flow control

15-0: Cycle time in nanoseconds

Cycle time in nanoseconds

69-70

71-74

Reserved (for future command overlap and queuing)

Reserved for IDENTIFY PACKET DEVICE command.

Queue depth

15-5:

4-0:

Reserved

Maximum queue depth – 1

76-79

Reserved for Serial ATA

Major version number

0000h or FFFFh = device does not report version

15:

14:

13:

12:

11:

10:

Reserved

Reserved for ATA/ATAPI-14

Reserved for ATA/ATAPI-13

Reserved for ATA/ATAPI-12

Reserved for ATA/ATAPI-11

Reserved for ATA/ATAPI-10

Reserved for ATA/ATAPI-9

Reserved for ATA/ATAPI-8

Reserved for ATA/ATAPI-7

1 = supports ATA/ATAPI-6

1 = supports ATA/ATAPI-5

1 = supports ATA/ATAPI-4

1 = supports ATA-3

Obsolete

Reserved

5-8 Quickview 40 20/30/40GB AT

ATA Bus Interface and ATA Commands

Table 5-2 Identify Drive Command Parameters

CONTENT DESCRIPTION

Word

Minor version number

0000h or FFFFh = device does not report version.

0001h-FFFEh = see 6.16.41 of ATA/ATAPI-7 specification

Command set supported.

15:

14:

13:

12:

11:

10:

Obsolete

1 = NOP command supported

1 = READ BUFFER command supported

1 = WRITE BUFFER command supported

Obsolete

1 = Host Protected Area feature set supported

1 = DEVICE RESET command supported

1 = SERVICE interrupt supported

1 = release interrupt supported

1 = look-ahead supported

1 = write cache supported

Shall be cleared to zero to indicate that the PACKET Command feature set is

not supported

1 = mandatory Power Management feature set supported

1 = Removable Media feature set supported

1 = Security Mode feature set supported

1 = SMART feature set supported

Command sets supported.

15:

14:

13:

12:

11:

10:

Shall be cleared to zero

Shall be set to on

1 = FLUSH CACHE EXT command supported

1 = mandatory FLUSH CACHE command supported

1 = Device Configuration Overlay feature set supported

1 = 48-bit Address feature set supported

1 = Automatic Acoustic Management feature set supported

1 = SET MAX security extension supported

Quickview 40 20/30/40GB AT

5-9

ATA Bus Interface and ATA Commands

Table 5-2 Identify Drive Command Parameters

Word

CONTENT DESCRIPTION

See Address Offset Reserved Area Boot, INCITS TR27:2001

1 = SET FEATURES subcommand required to spinup after power-up

1 = Power-Up In Standby feature set supported

1 = Removable Media Status Notification feature set supported

1 = Advanced Power Management feature set supported

1 = CFA feature set supported

1 = READ/WRITE DMA QUEUED supported

1 = DOWNLOAD MICROCODE command supported

Command set/feature supported extension.

15:

14:

13-8:

Shall be cleared to zero

Shall be set to one

Reserved

1 = WRITE DMA QUEUED FUA EXT command supported

1 = WRITE DMA FUA EXT and WRITE MULTIPLE FUA EXT commands

supported

1 = General Purpose Logging feature set supported

1 = Streaming feature set supported

1 = Media Card Pass Through Command feature set supported

1 = Media serial number supported

1 = SMART self-test supported

1 = SMART error logging supported

Command set/feature enabled.

15:

14:

13:

12:

11:

10:

Obsolete

1 = NOP command enabled

1 = READ BUFFER command enabled

1 = WRITE BUFFER command enabled

Obsolete

1 = Host Protected Area feature set enabled

1 = DEVICE RESET command enabled

1 = SERVICE interrupt enabled

5-10 Quickview 40 20/30/40GB AT

ATA Bus Interface and ATA Commands

Table 5-2 Identify Drive Command Parameters

CONTENT DESCRIPTION

Word

1 = release interrupt enabled

1 = look-ahead enabled

1 = write cache enabled

Shall be cleared to zero to indicate that the PACKET Command feature set is

not supported.

1 = Power Management feature set enabled

1 = Removable Media feature set enabled

1 = Security Mode feature set enabled

1 = SMART feature set enabled

Command set/feature enabled.

15-14: Reserved

13:

12:

11:

10:

1 = FLUSH CACHE EXT command supported

1 = FLUSH CACHE command supported

1 = Device Configuration Overlay supported

1 = 48-bit Address features set supported

1 = Automatic Acoustic Management feature set enabled

1 = SET MAX security extension enabled by SET MAX SET PASSWORD

See Address Offset Reserved Area Boot, INCITS TR27:2001

1 = SET FEATURES subcommand required to spin-up after power-up

1 = Power-Up In Standby feature set enabled

1 = Removable Media Status Notification feature set enabled

1 = Advanced Power Management feature set enabled

1 = CFA feature set enabled

1 = READ/WRITE DMA QUEUED command supported

1 = DOWNLOAD MICROCODE command supported

Command set/feature default.

15:

14:

13-8:

Shall be cleared to zero

Shall be set to one

Reserved

1 = WRITE DMA QUEUED FUA EXT command supported

Quickview 40 20/30/40GB AT

5-11

ATA Bus Interface and ATA Commands

Table 5-2 Identify Drive Command Parameters

Word

CONTENT DESCRIPTION

1 = WRITE DMA FUA EXT and WRITE MULTIPLE FUA EXT commands

supported

General Purpose Logging feature set supported

1 = Valid CONFIGURE STREAM command has been executed

1 = Media Card Pass Through Command feature set enabled

1 = Media serial number is valid

1 = SMART self-test supported

1 = SMART error logging supported

15:

14:

13:

12:

11:

10:

Reserved

1 = Ultra DMA mode 6 is selected. 0 = Ultra DMA mode 6 is not selected

1 = Ultra DMA mode 5 is selected. 0 = Ultra DMA mode 5 is not selected

1 = Ultra DMA mode 4 is selected. 0 = Ultra DMA mode 4 is not selected

1 = Ultra DMA mode 3 is selected. 0 = Ultra DMA mode 3 is not selected

1 = Ultra DMA mode 2 is selected. 0 = Ultra DMA mode 2 is not selected

1 = Ultra DMA mode 1 is selected. 0 = Ultra DMA mode 1 is not selected

1 = Ultra DMA mode 0 is selected. 0 = Ultra DMA mode 0 is not selected

Reserved

1 = Ultra DMA mode 6 and below are supported

1 = Ultra DMA mode 5 and below are supported

1 = Ultra DMA mode 4 and below are supported

1 = Ultra DMA mode 3 and below are supported

1 = Ultra DMA mode 2 and below are supported

1 = Ultra DMA mode 1 and below are supported

1 = Ultra DMA mode 0 is supported

Time required for security erase unit completion

Time required for Enhanced security erase completion

Current advanced power management value

Master Password Revision Code

5-12 Quickview 40 20/30/40GB AT

ATA Bus Interface and ATA Commands

Table 5-2 Identify Drive Command Parameters

Word

CONTENT DESCRIPTION

Hardware reset result. The contents of bits (12:0) of this word shall change only

during the execution of a hardware reset

15:

14:

13:

Shall be cleared to zero.

Shall be set to one.

1 = device detected CBLID- above ViH. 0 = device detected CBLID- below

ViL

12-8:

Device 1 hardware reset result. Device 0 shall clear these bits to zero.

Device shall set these bits as follows:

12:

11:

Reserved.

0 = Device 1 did not assert PDIAG-.

1 = Device 1 asserted PDIAG-.

10-9: These bits indicate how Device 1 determined the device number:

00 = Reserved.

01 = a jumper was used.

10 = the CSEL signal was used.

11 = some other method was used or the method is unknown.

Shall be set to one.

7-0:

Device 0 hardware reset result. Device 1 shall clear these bits to zero.

Device shall set these bits as follows:

Reserved.

0 = Device 0 does not respond when Device 1 is selected.

1 = Device 0 responds when Device 1 is selected.

0 = Device 0 did not detect the assertion of DASP-.

1 = Device 0 detected the assertion of DASP-

0 = Device 0 did not detect the assertion of PDIAG-.

1 = Device 0 detected the assertion of PDIAG-.

0 = Device 0 failed diagnostics.

1 = Device 0 passed diagnostics.

2-1:

These bits indicate how Device 0 determined the device number:

00 = Reserved.

01 = a jumper was used.

10 = the CSEL signal was used.

11 = some other method was used or the method is unknown.

Shall be set to one.

Quickview 40 20/30/40GB AT

5-13

ATA Bus Interface and ATA Commands

Table 5-2 Identify Drive Command Parameters

Word

CONTENT DESCRIPTION

15-8:

7-0:

Vendor’s recommended acoustic management value.

Current automatic acoustic management value

Stream Minimum Request Size

Stream Transfer Time - DMA

Stream Access Latency - DMA

Streaming Performance Granularity

Maximum user LBA for 48-bit Address feature set.

Stream Transfer Time – PIO

98-99

100-103

104

105

Stream Access Latency – PIO

Physical sector size

106

15:

Shall be cleared to zero

14:

Shall be set to one

13:

1 = Device has multiple logical sectors per physical sector.

Reserved

12-4:

3-0:

2 logical sectors per physical sector

107

108-126

127

Inter-seek delay for ISO-7779 acoustic testing in microseconds

Reserved

Removable Media Status Notification feature set support

15-2:

1-0:

Reserved

00 = Removable Media Status Notification feature set not supported

01 = Removable Media Status Notification feature supported

10 = Reserved

11 = Reserved

5-14 Quickview 40 20/30/40GB AT

ATA Bus Interface and ATA Commands

Table 5-2 Identify Drive Command Parameters

CONTENT DESCRIPTION

Word

128

Security status

15-9:

Reserved

Security level 0 = High, 1 = Maximum

7-6:

Reserved

1 = Enhanced security erase supported

1 = Security count expired

1 = Security frozen

1 = Security locked

1 = Security enabled

1 = Security supported

129-159

160

Vendor specific

CFA power mode 1

15:

14:

13:

Word 160 supported

Reserved

CFA power mode 1 is required for one or more commands implemented by

the device

12:

CFA power mode 1 disabled

Maximum current in ma

11-0:

161-175

176-205

206-254

255

Reserved for assignment by the CompactFlash Association

Current media serial number

Reserved

Integrity word

15-8:

7-0:

Checksum

Signature

Quickview 40 20/30/40GB AT

5-15

Chapter 6

SERVICE AND SUPPORT

6.1

Product Support/Technical Assistance/Customer Service

For Product Service and Support Information please visit our site at:

www.maxtor.com for warranty service or www.maxtorkb.com for technical support.

Quickview 40 20/30/40GB AT

6-1

GLOSSARY

AIRLOCK (all Maxtor drives).

ALLOCATION – The process of

ACCESS – (v) Read, write, or update

information on some storage medium,

such as a disk. (n) One of these

operations.

assigning particular areas of the disk to

particular files. See also allocation unit.

ALLOCATION UNIT – An allocation

unit, also known as a cluster, is a group

of sectors on the disk that can be

reserved for the use of a particular file.

ACCESS TIME – The interval between

the time a request for data is made by

the system and the time the data is

available from the drive. Access time

includes the actual seek time,

rotational latency, and command

processing overhead time. See also

seek, rotational latency, and overhead.

AVERAGE SEEK TIME – The average

time it takes for the read/write head to

move to a specific location. To

compute the average seek time, you

divide the time it takes to complete a

large number of random seeks all over

the disk by the number of seeks

performed.

ACTUATOR – Also known as the

positioner. The internal mechanism

that moves the read/write head to the

proper track. The Maxtor actuator

consists of a rotary voice coil and the

head mounting arms. One end of each

head mounting arm attaches to the

rotor with the read/write heads

attached at the opposite end of each

arm. As current is applied to the rotor,

it rotates, positioning the heads over

the desired cylinder on the media.

BACKUP – A copy of a file, directory,

or volume on a separate storage device

from the original, for the purpose of

retrieval in case the original is

accidentally erased, damaged, or

destroyed.

BAD BLOCK – A block (usually the size

of a sector) that cannot reliably hold

data because of a media flaw or

damaged format markings.

AIRLOCK – A patented Maxtor feature

that ensures durable and reliable data

storage. Upon removal of power from

the drive for any reason, the read/write

heads automatically park and lock in a

non data area called the landing zone.

AIRLOCK allows the drive to withstand

high levels of non-operating shock.

When power is applied to the drive,

airflow created from the spinning disks

causes the AIRLOCK arm to swing

back and unlock the actuator, allowing

the heads to move from the landing

zone. Upon power down, the AIRLOCK

swings back to the locked position,

locking the heads in the landing zone.

A park utility is not required to park the

heads on drives equipped with

BAD TRACK TABLE – A label affixed to

the casing of a hard disk drive that tells

which tracks are flawed and cannot

hold data. The listing is typed into the

low-level formatting program when the

drive is being installed. Because Maxtor

disk drive’s defect-management

scheme handles all such flaws

automatically, there is no need to

concern yourself with bad track tables.

BIT – Abbreviation for binary digit. A

binary digit may have one of two

values—1 or 0. This contrasts with a

Quickview 40 20/30/40GB AT

G-1

Glossary

decimal digit, which may have a value

controlled dust-free assembly or repair

facility in which hard disk drives are

assembled or can be opened for

internal servicing.

from 0 to 9. A bit is one of the logic 1or

logic 0 binary settings that make up a

byte of data. See also byte.

BLOCK – A sector or group of sectors.

By default, a block of data consists of

512 bytes.

CLUSTER – A group of sectors on a

disk drive that is addressed as one

logical unit by the operating system.

BPI – Abbreviation for bits per inch. A

measure of how densely information is

packed on a storage medium. Flux

changes per inch is also a term

CONTROLLER – Short form of disk

controller. The chip or complete circuit

that translates computer data and

commands into a form suitable for use

by the disk drive.

commonly used in describing storage

density on a magnetic surface.

CONTROLLER CARD – An adapter

holding the control electronics for one

or more hard disks, usually installed in

a slot in the computer.

BUFFER – An area of RAM reserved for

temporary storage of data that is

waiting to be sent to a device that is

not yet ready to receive it. The data is

usually on its way to or from the disk

drive or some other peripheral device.

CPU – Acronym for Central Processing

Unit. The microprocessor chip that

performs the bulk of data processing in

a computer.

BUS – The part of a chip, circuit board,

or interface designed to send and

receive data.

CRC – Acronym for Cyclic Redundancy

Check. An error detection code that is

recorded within each sector and is used

to see whether parts of a string of data

are missing or erroneous.

BYTE – The basic unit of computer

memory, large enough to hold one

character of alphanumeric data.

Comprised of eight bits. See also bit.

CYLINDER – On a disk drive that has

more than one recording surface and

heads that move to various tracks, the

group of all tracks located at a given

head position. The number of cylinders

times the number of heads equals the

number of tracks per drive.

CACHE – Random-access memory

used as a buffer between the CPU and

a hard disk. Information more likely to

be read or changed is placed in the

cache, where it can be accessed more

quickly to speed up general data flow.

DATA SEPARATOR – On a disk drive

that stores data and timing information

in an encoded form, the circuit that

extracts the data from the combined

data and clock signal.

CAPACITY – The amount of

information that can be stored on a disk

drive. The data is stored in bytes, and

capacity is usually expressed in

megabytes.

DEDICATED SERVO – A surface

separate from the surface used for data

that contains only disk timing and

positioning information and contains no

data.

CDB – Command Descriptor Block. The

SCSI structure used to communicate

requests from an initiator (system) to a

target (drive).

DEFECT MANAGEMENT – A method

that is implemented to ensure long

CLEAN ROOM – An environmentally

G-2 Quickview 40 20/30/40GB AT

Glossary

term data integrity. Defect

information encoded along with the

management eliminates the need for

user defect maps. This is accomplished

by scanning the disk drives at the

factory for defective sectors. Defective

sectors are deallocated prior to

shipment. In addition, during regular

use, the drive continues to scan and

compensate for any new defective

sectors on the disk.

disk data. The controller uses the extra

information to check for data errors,

and corrects the errors when possible.

EMBEDDED SERVO – A timing or

location signal placed on the disk’s

surface on the tracks that also store

data. These signals allow the actuator

to fine-tune the position of the

read/write heads.

DISK – In general, any circular-shaped

data-storage medium that stores data

on the flat surface of the platter. The

most common type of disk is the

magnetic disk, which stores data as

magnetic patterns in a metal or

ENCODING – The protocol by which

particular data patterns are changed

prior to being written on the disk

surface as a pattern of On and Off or 1

and 0 signals.

metal-oxide coating. Magnetic disks

come in two forms: floppy and hard.

Optical recording is a newer disk

technology that gives higher capacity

storage but at slower access times.

EXTERNAL DRIVE – A drive mounted

in an enclosure separate from the PC or

computer system enclosure, with its

own power supply and fan, and

connected to the system by a cable.

DISK CONTROLLER – A plug-in board,

or embedded circuitry on the drive, that

passes information to and from the

disk. The Maxtor disk drives all have

controllers embedded on the drive

printed-circuit board.

FAT – Acronym for file allocation table.

A data table stored on the outer edge

of a disk that tells the operating system

which sectors are allocated to each file

and in what order.

DISKWARE – The program instructions

and data stored on the disk for use by

a processor.

FCI – Acronym for flux changes per

inch. See also BPI.

DMA – Acronym for direct memory

access. A process by which data

moves directly between a disk drive (or

other device) and system memory

without passing through the CPU, thus

allowing the system to continue

processing other tasks while the new

data is being retrieved.

FILE SERVER – A computer that

provides network stations with

controlled access to shareable

resources. The network operating

system is loaded on the file server, and

most shareable devices (disk

subsystems, printers) are attached to

it. The file server controls system

security and monitors

DRIVE – Short form of disk drive.

station-to-station communications. A

dedicated file server can be used only

as a file server while it is on the

network. A non dedicated file server

can be used simultaneously as a file

server and a workstation.

DRIVE GEOMETRY – The functional

dimensions of a drive in terms of the

number of heads, cylinders, and

sectors per track. See also logical

format.

FLUX DENSITY – The number of

magnetic field patterns that can be

stored in a given length of disk surface.

The number is usually stated as flux

ECC – Acronym for error correction

code. The recording of extra verifying

Quickview 40 20/30/40GB AT

G-3

Glossary

changes per inch (FCI), with typical

HARD DISK – A type of storage

medium that retains data as magnetic

patterns on a rigid disk, usually made

of an iron oxide or alloy over a

magnesium or aluminum platter.

Because hard disks spin more rapidly

than floppy disks, and the head flies

closer to the disk, hard disks can

transfer data faster and store more in

the same volume.

values in the thousands.

FLYING HEIGHT – The distance

between the read/write head and the

disk surface caused by a cushion of air

that keeps the head from contacting

the media. Smaller flying heights

permit more dense storage of data, but

require more precise mechanical

designs.

HARD ERROR – A repeatable error in

disk data that persists when the disk is

reread, usually caused by defects in the

media surface.

FORMAT – To write onto the disk

surface a magnetic track pattern that

specifies the locations of the tracks

and sectors. This information must

exist on a disk before it can store any

user data. Formatting erases any

previously stored data.

HEAD – The tiny electromagnetic coil

and metal pole piece used to create and

read back the magnetic patterns (write

and read information) on the media.

FORMATTED CAPACITY – The

amount of room left to store data on

the disk after the required space has

been used to write sector headers,

boundary definitions, and timing

information generated by a format

operation. All Maxtor drive capacities

are expressed in formatted capacity.

HIGH-CAPACITY DRIVE – By industry

conventions typically a drive of 1

gigabytes or more.

HIGH-LEVEL FORMATTING –

Formatting performed by the operating

system’s format program. Among

other things, the formatting program

creates the root directory and file

allocation tables. See also low-level

formatting.

FORM FACTOR – The physical outer

dimensions of a device as defined by

industry standard. For example, most

Maxtor disk drives use a 3 1/2-inch

form factor.

HOME – Reference position track for

re-calibration of the actuator, usually

the outer track (track 0).

HOST ADAPTER – A plug-in board that

forms the interface between a

particular type of computer system bus

and the disk drive.

GIGABYTE (GB) – One billion bytes

(one thousand megabytes).

GUIDE RAILS – Plastic strips attached

to the sides of a disk drive mounted in

an IBM AT and compatible computers

so that the drive easily slides into

place.

INITIALIZE – See low level formatting.

INITIATOR – A SCSI device that

requests another SCSI device to

perform an operation. A common

example of this is a system requesting

data from a drive. The system is the

initiator and the drive is the target.

HALF HEIGHT – Term used to describe

a drive that occupies half the vertical

space of the original full size 5 1/4-inch

drive. 1.625 inches high.

INTERFACE – A hardware or software

protocol, contained in the electronics

G-4 Quickview 40 20/30/40GB AT

Glossary

of the disk controller and disk drive,

that manages the exchange of data

between the drive and computer.

touching the surface in data areas upon

power down, adding to the data

integrity and reliability of the disk drive.

INTERLEAVE – The arrangement of

sectors on a track. A 1:1 interleave

arranges the sectors so that the next

sector arrives at the read/write heads

just as the computer is ready to access

it. See also interleave factor.

LATENCY – The period of time during

which the read/write heads are waiting

for the data to rotate into position so

that it can be accessed. Based on a

disk rotation speed of 3,662 rpm, the

maximum latency time is 16.4

milliseconds, and the average latency

time is 8.2 milliseconds.

INTERLEAVE FACTOR – The number of

sectors that pass beneath the

read/write heads before the next

numbered sector arrives. When the

interleave factor is 3:1, a sector is

read, two pass by, and then the next is

read. It would take three revolutions of

the disk to access a full track of data.

Maxtor drives have an interleave of

1:1, so a full track of data can be

accessed within one revolution of the

disk, thus offering the highest data

throughput possible.

LOGICAL FORMAT – The logical drive

geometry that appears to an AT

system BIOS as defined by the drive

tables and stored in CMOS. With an

installation program like Disk Manager,

the drive can be redefined to any

logical parameters necessary to adapt

to the system drive tables.

LOOK AHEAD – The technique of

buffering data into cache RAM by

reading subsequent blocks in advance

to anticipate the next request for data.

The look ahead technique speeds up

disk access of sequential blocks of

data.

INTERNAL DRIVE – A drive mounted

inside one of a computer’s drive bays

(or a hard disk on a card, which is

installed in one of the computer’s

slots).

LOW-LEVEL FORMATTING –

Formatting that creates the sectors on

the platter surfaces so the operating

system can access the required areas

for generating the file structure. Maxtor

drives are shipped with the low-level

formatting already done.

JUMPER – A tiny box that slips over

two pins that protrude from a circuit

board. When in place, the jumper

connects the pins electrically. Some

board manufacturers use Dual In-Line

Package (DIP) switches instead of

jumpers.

LOW PROFILE – Describes drives built

to the 3 1/2-inch form factor, which

are only 1 inch high.

KILOBYTE (Kb) – A unit of measure

consisting of 1,024 (2¹⁰) bytes.

LANDING ZONE – A position inside the

disk’s inner cylinder in a non data area

reserved as a place to rest the heads

during the time that power is off. Using

this area prevents the heads from

Quickview 40 20/30/40GB AT

G-5

Glossary

is in failures/million hours, MTTF =

1,000,000 / Failure Rate for

components with exponential

distributions.

MB – See megabyte.

MEDIA – The magnetic film that is

deposited or coated on an aluminum

substrate which is very flat and in the

shape of a disk. The media is

overcoated with a lubricant to prevent

damage to the heads or media during

head take off and landing. The media is

where the data is stored inside the disk

in the form of magnetic flux or polarity

changes.

MTTR – Mean Time To Repair. The

average time it takes to repair a drive

that has failed for some reason. This

only takes into consideration the

changing of the major sub-assemblies

such as circuit board or sealed housing.

Component level repair is not included

in this number as this type of repair is

not performed in the field.

MEGABYTE (MB) – A unit of

measurement equal to 1,024 kilobytes,

or 1,048,576 bytes except when

referring to disk storage capacity.

OVERHEAD – The processing time of a

command by the controller, host

adapter or drive prior to any actual disk

accesses taking place.

1 MB = 1,000,000 bytes when

referring to disk storage capacity.

OVERWRITE – To write data on top of

existing data, erasing it.