Maxtor Fireball3. November Part Number:

Transcription

1 Maxtor Fireball3 November Part Number:

2 November Maxtor Corporation. All rights reserved. Printed in U.S.A. This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein which will be incorporated in revised editions of the publication. Maxtor may make changes or improvements in the product(s) described in this publication at any time and without notice. Maxtor, MaxFax are registered trademarks of Maxtor Corporation, registered in the U.S.A. and other countries. Maxtor Fireball3, AutoTransfer, AutoRead, AutoWrite, DisCache, DiskWare, Defect Free Interface, and WriteCache are trademarks of Maxtor Corporation. All other brand names or trademarks are the property of their manufacturers. Maxtor reserves the right to make changes and improvements to its products, without incurring any obligation 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, copying, 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 and FAR 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 Part Number:

3 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 MAXTOR. 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) precautions, including personnel and equipment grounding. Stand-alone drives are sensitive to Electrostatic discharge (ESD) damage. 2 BEFORE removing drives from their packing material, allow them to reach room temperature. 3 During handling, NEVER drop, jar, or bump a drive. 4 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. 5 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. 6 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 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 Customer Service Center at 800-2MAXTOR or Corporate Headquarters: 500 McCarthy Blvd. Milpitas, California Tel: Fax:

4 Table of Contents Chapter 1 INTRODUCTION 1.1 Maxtor Corporation Manual Organization Abbreviations Conventions Chapter 2 PRODUCT DESCRIPTION 2.1 Product Description Key Features Product Features Cache Management Major HDA Components Subsystem Configuration Cylinder Limitation Jumper Description Chapter 3 PRODUCT SPECIFICATIONS 3.1 Models and Capacities Drive Configuration Performance Specifications Physical Dimensions Power Requirements Power Mode Definitions EPA Energy Star Compliance Environmental Limits Shock and Vibration Reliability Specifications EMC/EMI Radiated Electromagnetic Field Emissions - EMC Compliance Canadian Emissions Statement Safety Regulatory Compliance Maxtor Fireball3 vi

5 Table of Contents Chapter 4 HANDLING AND INSTALLATION 4.1 Hard Drive Handling Precautions Electro-Static Discharge (ESD) Unpacking and Inspection Repacking Physical Installation Chapter 5 ATA BUS INTERFACE AND ATA COMMANDS 5.1 INTRODUCTION MECHANICAL INTERFACE Signal Cable and Connector ELECTRICAL INTERFACE ATA Bus Interface REGISTER ADDRESS DECODING COMMAND INTERFACE General Feature Set Supported Commands Chapter 6 SERVICE AND SUPPORT 6.1 Service Policy vii Maxtor Fireball3

6 List of Figures Figure 2-1 PCBA Jumper Location and Configuration Figure 3-1 Outline and Mounting Dimensions Figure 4-1 Single-Pack Shipping Container Figure Pack Shipping Container viii Maxtor Fireball3

7 Chapter 1 INTRODUCTION 1.1 Maxtor Corporation Maxtor Corporation has been providing high-quality computer storage products since Along the way, we ve seen many changes in data storage needs. Not long ago, only a handful of specific users needed more than a couple hundred megabytes of storage. Today, downloading from the Internet and CD-ROMs, multimedia, networking and advanced office applications are driving storage needs even higher. Even home PC applications need capacities measured in gigabytes, not megabytes. Support Maxtor provides a variety of customer 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 with a support person. For more information, visit Manual Organization This hard disk drive reference manual is organized in the following method: Chapter 1 Introduction Chapter 2 Product Description Chapter 3 Product Specifications Chapter 4 Handling and Installation Chapter 5 ATA Bus Interface and ATA Commands Chapter 6 Service and Support Glossary Index Maxtor Fireball3 1-1

8 Introduction 1.3 Abbreviations Abbreviation Description Abbreviation Description ATA AT attachment MB megabyte bpi bits per inch Mbits/sec megabits per second CHS cylinder - head - sector MB/sec megabytes per second DA Double Amplitude (represents pk-pk shaker displacement) db decibels MHz megahertz dba decibels, A weighted ms millisecond DMA direct memory access MSB most significant bit ECC error correction code mv millivolts fci flux changes per inch ns nanoseconds G acceleration PIO programmed input/output GB gigabyte RPM revolutions per minute Hz hertz tpi tracks per inch KB kilobyte UDMA ultra direct memory access LBA logical block address(ing) µsec microsecond LSB least significant bit V volts ma milliamperes W watts 1.4 Conventions If there is a conflict between text and tables, the table shall be accepted as being correct. Key Words The names of abbreviations, commands, fields and acronyms used as signal names are in all uppercase type (e.g., IDENTIFY DRIVE). Fields containing only one bit are usually referred to as the name bit instead of the name field. Names of drive registers begin with a capital letter (e.g., Cylinder High register). Numbering Numbers that are not followed by a lowercase b or h are decimal values. Numbers that are followed by a lowercase b (e.g., 01b) are binary values. Numbers that are followed by a lowercase h (e.g., 3Ah) are hexadecimal values. 1-2 Maxtor Fireball3

9 Introduction Signal Conventions Signal names are shown in all uppercase type. All signals are either high active or low active signals. A dash character (-) at the end of a signal name indicates that the signal is low active. A low active signal is true when it is below ViL and is false when it is above ViH. A signal without a dash at the end indicates that the signal is high active. A high active signal is true when it is above ViH and is false when it is below ViL. When a signal is asserted, it means the signal is driven by an active circuit to its true state. When a signal is negated, it means the signal is driven by an active circuit to its false state. When a signal is released, it means the signal is not actively driven to any state. Some signals have bias circuitry that pull the signal to either a true or false state when no signal driver is actively asserting or negating the signal. These instances are noted under the description of the signal. Maxtor Fireball3 1-3

10 Chapter 2 PRODUCT DESCRIPTION 2.1 Product Description The Fireball 3 is the industries first 40Gb single-head/single platter hard drive with an Ultra ATA/133 interface. Combining value and performance, this is an excellent choice for entry-level desktop systems and consumer electronic applications. The Maxtor Fireball 3 drive is the latest in the family of Maxtor single platter 5400RPM drives designed for higher reliability. The drive s inner diameter load/ unload ramp locks the recording head into a protective carrier to cradle the head during shipment and any other time the drive is not in operation. The Fireball 3 take reliability and data integrity to a new level with Maxtor Shock Protection System (SPS) and Data Protection System (DPS). SPS and DPS give the user enhanced protection against both operation and non-operating shock and verify essential functions in seconds to minimize costly drive returns. Industry leading design, optimized to meet the needs of the entry level and value applications: Supports popular entry level and value capacity - 40GB ATA/133 the fastest and latest IDE interface FDB (Fluid Dynamic Bearing) motor for quiet operation Low height to improve airflow and cooling Low weight to reduce shipping costs Improved reliability with: ~ Shock Protection System ~ Data Protection System 2.2 Key Features ANSI ATA-5/6 compliant PIO Mode 4 interface (Enhanced IDE) Supports ATA-6 UltraDMA Mode 5 (100 MBytes/sec) and Maxtor Ultra ATA/133 MBytes/second data transfer rates 2 MB buffer with multi-adaptive cache manager Maxtor Fireball3 2-1

11 Product Description 5400 RPM spin speed 12.0 ms seek time Zone density and ID-less recording Outstanding shock resistance at 300 Gs High durability with 100,000 cycles for reliable load/unload function Advanced multi-burst on-the-fly Error Correction Code (ECC) Extended data integrity with ECC protected data and fault tolerant servo synchronization fields Supports EPA Energy Star Standards (Green PC Friendly) with ATA powering savings commands Auto park and lock actuator mechanism Low power consumption SMART Capability Note: Maxtor defines 1 Gigabyte (GB) as 10 9 or 1,000,000,000 bytes of data. Total accessible capacity varies depending on operating environment. 2.3 Product Features Functional/Interface Maxtor hard drives contain all necessary mechanical and electronic parts to interpret control signals and commands from an AT-compatible host computer. See Chapter 3 Product Specifications, for complete drive specifications. Zone Density Recording The disk capacity is increased with bit density management common with Zone Density Recording. Each disk surface is divided into 16 circumferential zones. All tracks within a given zone contain a constant number of data sectors. The number of data sectors per track varies in different zones; the outermost zone contains the largest number of data sectors and the innermost contains the fewest. Read/Write Multiple Mode This mode is implemented per ANSI ATA/ATAPI-6 specification. Read/Write Multiple allows the host to transfer a set number of sectors without an interrupt request between them, reducing transfer process overhead and improving host performance. UltraDMA-Mode 5 Maxtor hard drives fully comply with the new ANSI Ultra DMA protocol, which greatly improves overall AT interface performance by significantly improving burst and sustained data throughput. Multi-word DMA-Mode 2 Supports multi-word Direct Memory Access (DMA) mode transfers. 2-2 Maxtor Fireball3

12 Product Description Sector Address Translation All Maxtor hard drives feature a universal translate mode. In an AT/EISA-class system, the drive may be configured to any specified combination of cylinders, heads and sectors (within the range of the drive's formatted capacity). Maxtor hard drives power-up in a translate mode: MODELS CYL HD SPT MAX LBA CAPACITY 2F020J0/L0 40, ,718,160 20GB 2F030J0/L0 59, ,058,656 30GB 2F040J0/L0 79, ,293,248 40GB Logical Block Addressing The Logical Block Address (LBA) mode can only be utilized in systems that support this form of translation. The cylinder, head and sector geometry of the drive, as presented to the host, differs from the actual physical geometry. The host AT computer may access a drive of set parameters: number of cylinders, heads and sectors per track, plus cylinder, head and sector addresses. However, the drive can t use these host parameters directly because of zoned recording techniques. The drive translates the host parameters to a set of logical internal addresses for data access. The host drive geometry parameters are mapped into an LBA based on this formula: LBA where = (HSCA - 1) + HHDA x HSPT + HNHD x HSPT x HCYA = (HSCA - 1) + HSPT x (HHDA + HNHD x HCYA) HSCA = Host Sector Address, HHDA = Host Head Address HCYA = Host Cylinder Address, HNHD = Host Number of Heads HSPT = Host Sectors per Track The LBA is checked for violating the drive capacity. If it does not, the LBA is converted to physical drive cylinder, head and sector values. The physical address is then used to access or store the data on the disk and for other drive related operations. Defect Management Zone (DMZ) Each drive model has a fixed number of spare sectors per drive, all of which are located at the end of the drive. Upon detection of a bad sector that has been reassigned, the next sequential sector is used. For example, if sector 3 is flagged, data that would have been stored there is pushed down and recorded in sector 4. Sector 4 then effectively becomes sector 3, as sequential sectors are pushed down across the entire drive. The first spare sector makes up for the loss of sector 3, and so maintains the sequential order of data. This push down method assures maximum performance. On-the-Fly Hardware Error Correction Code (ECC) >24 symbols, single burst, guaranteed Maxtor Fireball3 2-3

13 Product Description Software ECC Correction 24 symbols, single burst, guaranteed 2.4 Cache Management Buffer Segmentation The data buffer is organized into two segments: the data buffer and the micro controller scratch pad. The data buffer is dynamically allocated for read and write data depending on the commands received. A variable number of read and write buffers may exist at the same time. Read-Ahead Mode Normally, this mode is active. Following a read request, disk read-ahead begins on the first sector and continues sequentially until the allocated buffer is full. If a read request is received during the read-ahead operation, the buffer is examined to determine if the request is in the cache. If a cache hit occurs, read-ahead mode continues without interruption and the host transfer begins immediately. Automatic Write Reallocation (AWR) This feature is part of the write cache and reduces the risk of data loss during deferred write operations. If a disk error occurs during the disk write process, the disk task stops and the suspect sector is reallocated to a pool of alternate sectors located at the end of the drive. Following reallocation, the disk write task continues until it is complete. Write Cache Stacking Normally, this mode is active. Write cache mode accepts the host write data into the buffer until the buffer is full or the host transfer is complete. A command complete interrupt is generated at the end of the transfer. A disk write task begins to store the host data to disk. Host write commands continue to be accepted and data transferred to the buffer until either the write command stack is full or the data buffer is full. The drive may reorder write commands to optimize drive throughput. 2.5 Major HDA Components Drive Mechanism A brushless DC direct drive motor rotates the spindle at 5400 RPM (±0.1%). The dynamically balanced motor/spindle assembly ensures minimal mechanical run-out to the disks. A dynamic brake provides a fast stop to the spindle motor upon power removal. The speed tolerance includes motor performance and motor circuit tolerances. Rotary Actuator All Maxtor hard drives employ a rotary voice coil actuator which consists of a moving coil, an actuator arm assembly and stationary magnets. The actuator moves on a low-mass, low-friction center shaft. The low friction contributes to fast access times and low power consumption. 2-4 Maxtor Fireball3

14 Product Description Read/Write Electronics An integrated circuit mounted within the sealed head disk assembly (near the read/ write heads) provides up to eight head selection depending on the model. It also provides read pre-amplification and write drive circuitry. Read/Write Heads and Media Low mass, low force giant magneto-resistive read/write heads record data on 3.5- inch diameter disks. Maxtor uses a sputtered thin film medium on all disks for Maxtor hard drives. Air Filtration System All Maxtor hard drives are assembled in a Class 100 controlled environment. Over the life of the drive, a 0.1 micron filter and breather filter located within the sealed head disk assembly (HDA) maintain a clean environment to the heads and disks. Maxtor drives are designed to operate in a typical office environment with minimum environmental control. Microprocessor The microprocessor controls the following functions for the drive electronics: Command execution Cache management Data correction and error recovery Diagnostic execution Data sequencing Head positioning (including error recovery) Host interface Index detection Spin speed control Seeks Servo SMART 2.6 Subsystem Configuration Dual Drive Support Two drives may be accessed via a common interface cable, using the same range of I/O addresses. The drives have a jumper configuration as device 0 or 1 (Master/ Slave), and are selected by the drive select bit in the Device/Head register of the task file. All Task File registers are written in parallel to both drives. The interface processor on each drive decides whether a command written to it should be executed; this Maxtor Fireball3 2-5

15 Product Description depends on the type of command and which drive is selected. Only the drive selected executes the command and activates the data bus in response to host I/O reads; the drive not selected remains inactive. A master/slave relationship exists between the two drives: device 0 is the master and device 1 the slave. When the Master is closed (factory default, figure 2-1), the drive assumes the role of master; when open, the drive acts as a slave. In single drive configurations, the Master jumper must be closed. Cable Select Option CSEL (cable select) is an optional feature per ANSI ATA specification. Drives configured in a multiple drive system are identified by CSEL s value: If CSEL is grounded, then the drive address is 0. If CSEL is open, then the drive address is 1. Figure 2-1 PCBA Jumper Location and Configuration 2-6 Maxtor Fireball3

16 Product Description JUMPER CONFIGURATION J49 J50 J47 J48 J45 J46 J43 J44 J41 J42 Master/Slave Only drive in single drive system* Master drive in dual drive system* Slave drive in dual drive system C C O Cable Select Disabled* Enabled O C Cylinder Limitation Disabled* Enabled O C Factory Reserved O O Key * = Default C = Closed (jumper installed) O = Open (no jumper installed) 2.7 Cylinder Limitation Jumper Description On some older BIOS', primarily those that auto-configure the disk drive, a hang may occur. The Cylinder Limitation jumper reduces the capacity in the Identify Drive allowing large capacity drives to work with older BIOS. The capacity reported when J45:J46 is closed will be as follows: drives less than or equal to 32GB will report 2.1GB. Maxtor Fireball3 2-7

17 Chapter 3 PRODUCT SPECIFICATIONS 3.1 Models and Capacities MODELS 2F020J0/L0 2F030J0/L0 2F040J0/L0 Formatted Capacity (GB LBA Mode) 20GB 30GB 40GB GB means 1 billion bytes. Total accessible capacity varies depending on operating environment. 3.2 Drive Configuration MODELS 20GB 30GB 40GB Data Surfaces/Number of Heads Number of Disks Sectors per Drive (max LBA) 40,720,112 60,061,904 80,295,529 Integrated Interface Recording Method Servo Type Maxtor Ultra ATA/133 (ATA-5/ATA-6) PRML Embedded Number of Servo Sectors 232 Data Zones per Surface 16 Data Sectors per Track (ID/OD) 464/835, 522/928, 696/1160 Areal Density (Gbits/in 2 max, ID/OD) 30.1/27, 46.2/39.8, 60.7/51 Flux Density (kfci, ID/OD) OD=471.2/542.7/712.5 ID = 424/467.7/600 Recording Density (kbpi, ID/OD) ID = 452/521/684 OD = 407/449/576 Track Density (ktpi) 67.5/90/90 Maxtor Fireball3 3-1

18 Product Specifications 3.3 Performance Specifications MODELS 20GB 30GB 40GB Seek Times (typical read, ms) Track-to-Track 1.0 Average (normal seek) 12.0 Full Stroke (normal seek) 23 Average Latency (ms) 5.55 Controller Overhead (ms) <0.3 Rotation Speed (RPM ±0.1%) 5400 Data Transfer Speed (MByte/sec max) To/From Interface (Maxtor Ultra ATA/133, up to) To/From Media (ID/OD up to nn.n, where nn.n is the maximum transfer rate possible) Sustained (ID/OD up to nn.n, where nn.n is the maximum transfer rate possible) Data Buffer Size (MB)/Type 133 ID = 223/257/337 OD = 406/445/560 ID = 21.6/24.3/32.3 OD = 38.8/43.1/53.9 2/SDRAM Drive Ready Time (typical sec) < Physical Dimensions PARAMETER VALUE Height (maximum in mm) 17.5 Width (typical mm) Length (maximum in mm) Weight (maximum in grams) Maxtor Fireball3

19 Product Specifications 17 ± ± ± ± ±0.25 Pin ± ± ±0.25 Pin ± ± ±0.5 Figure 3-1 Outline and Mounting Dimensions Maxtor Fireball3 3-3

20 Product Specifications 3.5 Power Requirements MODE 12V (MA) 5V (MA) POWER (W) Spin-up (peak) Seek Read/Write Idle Standby Sleep 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 Maxtor Fireball3

21 Product Specifications 3.8 Environmental Limits PARAMETER Temperature Thermal Gradient Relative Humidity Wet Bulb OPERATING 5 C to 55 C (with no ARR impact) 0 C to 60 C (margin demonstrated 1 ) >30 C per hour (maximum) 5% to 95% (non-condensing) 30 C (maximum) NON-OPERATING/ STORAGE Low temperature (-40 C) High temperature (71 C) per MIL-STD-810E, method 501.3, climatic category; hot-induced conditions. Altitude (relative to sea level) -650 to 10,000 feet -650 to 40,000 feet ACOUSTIC NOISE 2 Fluid Bearing Ball Bearing IDLE MODE (Track Following at Speed) 2.6 bel average 2.9 bel maximum 2.8 bel average 3.3 bel maximum NORMAL SEEK MODE 2.7 bel average 2.9 bel maximum 3.0 bel average 3.4 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 Variation in acoustic levels from the idle specification may occur due to offline activity according to the SMART specification and/or atmospheric conditions. Maxtor Fireball3 3-5

22 Product Specifications 3.9 Shock and Vibration PARAMETER OPERATING NON-OPERATING Mechanical Shock R>=0.988/shock at 60 Gs; R>0.999/shock at 30 Gs 2 msec, 1/2 sine R=0.90@>= 300G 1 disk R=0.95@>= 250G, 1 disk R=0.99@>= 200G, 1 disk Rotational Shock 2000 rad/sec 2 R>- 20K rad/sec 2, 0.5ms to 1ms input R>- 15K rad/sec 2, 0.5ms to 1ms input Rotational Random Vibration Random Vibration Swept Sine Vibration (0.25 octave/minute, peak amplitude) Hz Hz 4.70 rad/sec 2 RMS Overall Hz 0.87 GRMS Overall Frequency (Hz) / Acceleration (Gpk) 5 / 0.40 DA 8.5 / 0.40 DA 8.6 / / \ / / Hz 96.5 rad/sec 2 RMS PSD: Hz at 3.08 GRMS No Damage 3-6 Maxtor Fireball3

23 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 Component Design Life 5 years (minimum) 3.11 EMC/EMI Data errors (non-recoverable). Average data error rate allowed with all error recovery features activated. 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 the wear-out point when useful component life expires 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 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. Maxtor Fireball3 3-7

24 Product Specifications 3.12 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. 3-8 Maxtor Fireball3

25 Chapter 4 HANDLING AND INSTALLATION 4.1 Hard Drive Handling Precautions If the handling precautions are not followed, damage to the hard drive may result whichmay void the warranty. During handling, NEVER drop, jar, or bump a drive. Handle the drive by its sides and avoid touching the printed circuit board assembly (PCBA). Hard drives are sensitive to electrostatic discharge (ESD) damage. Use proper ESD practices by grounding yourself and the computer system the hard drive will be installed in. Allow the hard drive to reach room temperature BEFORE installing it in your computer system. NEVER switch DC power onto the drive by plugging an electrically live DC source cable into the drive's connector. NEVER connect a live connector to the hard drive's IDE 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. 4.2 Electrostatic Discharge (ESD) To better avoid problems associated with ESD, Maxtor advises that anyone handling a disk drive use a wrist strap with an attached wire connected to an earth ground. Failure to observe these precautions voids the product warranty. To reduce the incidence of ESD-related problems, Maxtor recommends that any electronics manufacturing plans include a comprehensive ESD program. Maxtor also offers a complete video training package, Care and Handling of Maxtor Disk Drives. Contact your Maxtor representative for details. Maxtor Fireball3 4-1

26 Handling and Installation 4.3 Unpacking and Inspection Retain any packing material for reuse. Inspect the shipping container for evidence of damage in transit. Notify the carrier immediately in case of damage to the shipping container. As they are removed, inspect drives for evidence of shipping damage or loose hardware. If a drive is damaged (and no container damage is evident), notify Maxtor immediately for drive disposition. Figure 4-1 Single-Pack Shipping Container 4-2 Maxtor Fireball3

27 Handling and Installation Figure Pack Shipping Container Maxtor Fireball3 4-3

28 Handling and Installation 4.4 Repacking If a Maxtor drive requires return, repack it using Maxtor packing materials, including the antistatic bag. 4.5 Physical Installation The Maxtor hard drive design allows greater shock tolerance than that afforded by larger, heavier 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. The detailed installation instructions for Maxtor hard drives are provided in the Installation Guide. To obtain a copy of the Installation Guide please visit Maxtor s web site at and select the product family to view or download the correct installation information for this product. 4-4 Maxtor Fireball3

29 Chapter 5 ATA BUS INTERFACE AND ATA COMMANDS This chapter describes the interface between Maxtor Fireball3 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 Fireball3 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 The Maxtor Fireball3 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 Fireball3 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 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 Fireball3 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 Fireball3 disk media will not begin to spin up until RESET- is negated. This may reduce maximum current consumption for the overall system. Maxtor Fireball3 5-1

30 ATA Bus Interface and ATA Commands 5.4 REGISTER ADDRESS DECODING The Maxtor Fireball3 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 The µprocessor, Disk Controller, and ATA Interface electronics are contained in a proprietary ASIC developed by Maxtor Supported Commands The Maxtor Fireball3 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. Table 5-1 Lists the supported commands. Table 5-1 Supported Commands Command Command Code Feature Register Value(s) CHECK POWER MODE 98h, E5h DEVICE CONFIGURATION FREEZE LOCK B1h C1h DEVICE CONFIGURATION IDENTIFY B1h C2h DEVICE CONFIGURATION RESTORE B1h C0h DEVICE CONFIGURATION SET B1h C3h DOWNLOAD MICROCODE 92h 07h, 01h EXECUTE DRIVE DIAGNOSTIC 90h FLUSH CACHE E7h IDENTIFY DRIVE ECh IDLE 97h, E3h IDLE IMMEDIATE 95h, E1h NOP 00h 5-2 Maxtor Fireball3

31 ATA Bus Interface and ATA Commands Table 5-1 Supported Commands Command READ BUFFER READ DMA READ LONG READ MULTIPLE READ NATIVE MAX ADDRESS READ SECTOR(S) READ VERIFY SECTOR(S) SECURITY DISABLE PASSWORD Command Code E4h C8h, C9h 22h, 23h C4h F8h 20h, 21h 40h, 41h F6h Feature Register Value(s) SECURITY ERASE PREPARE F3h SECURITY ERASE UNIT F4h SECURITY FREEZE LOCK F5H SECURITY SET PASSWORD F1h SECURITY UNLOCK F2h SEEK 70h SET FEATURES EFh Note 1 SET MAX ADDRESS F9h 00h SET MAX SET PASSWORD F9h 01h SET MAX LOCK F9h 02h SET MAX UNLOCK F9h 03h SET MAX FREEZE LOCK F9h 04h SET MULTIPLE MODE C6h SLEEP 99h, E6h SMART DISABLE OPERATIONS B0h D9h SMART ENABLE OPERATIONS B0h D8h SMART ENABLE/DISABLE ATTRIBUTE AUTOSAVE B0h D2h Maxtor Fireball3 5-3

32 ATA Bus Interface and ATA Commands Table 5-1 Supported Commands Command Command Code Feature Register Value(s) SMART EXECUTE OFF-LINE IMMEDIATE B0h D4h SMART READ DATA B0h D0h SMART READ LOG B0h D5h SMART RETURN STATUS B0h DAh SMART SAVE ATTRIBUTE VALUES B0h D3h SMART WRITE LOG B0h D6h STANDBY STANDBY IMMEDIATE WRITE BUFFER WRITE DMA WRITE MULTIPLE WRITE PIO OVERLAP WRITE SECTOR(S) 96h, E2h 94h, E0h E8h CAh, CBh C5h 34h 30h, 31h Note: 1. As defined in the ATA/ATAPI-6 standard. 5-4 Maxtor Fireball3

33 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 0 General configuration bit-significant information: 15: 0 = ATA device 14-8: Retired 7: 1 = removable media device 6: Obsolete 5-3: Retired 2: Response incomplete 1: Retired 0: Reserved 1 Obsolete 2 Specific configuration 3 Obsolete 4-5 Retired 6 Obsolete 7-8 Reserved for assignment by the CompactFlash Association 9 Retired Serial number (20 ASCII characters) Maxtor Fireball3 5-5

34 ATA Bus Interface and ATA Commands Table 5-2 Identify Drive Command Parameters Word CONTENT DESCRIPTION Retired 22 Obsolete Firmware revision (8 ASCII characters) Model number (40 ASCII characters) : 80h 48 Reserved 49 Capabilities 7-0: 00h = Reserved 01h-FFh: = Maximum number of sectors that shall be transferred per interrupt on READ/WRITE MULTIPLE commands 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: Reserved for the IDENTIFY PACKET DEVICE command. 11: 1 = IORDY supported. 0 = IORDY may be supported 10: 1 = IORDY may be disabled 9: 1 = LBA supported 8: 1 = DMA supported. 7-0: Retired 50 Capabilities Obsolete 15: Shall be cleared to zero. 14: Shall be set to one. 13-2: Reserved. 1: Obsolete 0: Shall be set to one to indicate a device specific Standby timer value minimum. 5-6 Maxtor Fireball3

35 ATA Bus Interface and ATA Commands Table 5-2 Identify Drive Command Parameters Word CONTENT DESCRIPTION : Reserved Obsolete 2: 1 = the fields reported in word 88 are valid. 0 = the fields reported in word 88 are not valid 1: 1 = the fields reported in words (70:64) are valid. 0 = the fields reported in words (70:64) are not valid 0: Obsolete : Reserved 8: 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 Total number of user addressable sectors 62 Obsolete : Reserved 10: 1 = Multiword DMA mode 2 is selected. 0 = Multiword DMA mode 2 is not selected 9: 1 = Multiword DMA mode 1 is selected. 0 = Multiword DMA mode 1 is not selected 8: 1 = Multiword DMA mode 0 is selected. 0 = Multiword DMA mode 0 is not selected 7-3: Reserved 2: 1 = Multiword DMA mode 2 and below are supported 1: 1 = Multiword DMA mode 1 and below are supported 0: 1 = Multiword DMA mode 0 is supported : Reserved 7-0: PIO modes supported 65 Minimum Multiword DMA transfer cycle time per word 15-0: Cycle time in nanoseconds 66 Manufacturer s recommended Multiword DMA transfer cycle time 15-0: Cycle time in nanoseconds Maxtor Fireball3 5-7

36 ATA Bus Interface and ATA Commands Table 5-2 Identify Drive Command Parameters Word CONTENT DESCRIPTION 67 Minimum PIO transfer cycle time without flow control 15-0: Cycle time in nanoseconds 68 Minimum PIO transfer cycle time with IORDY flow control 15-0: Cycle time in nanoseconds Reserved (for future command overlap and queuing) Reserved for IDENTIFY PACKET DEVICE command. 75 Queue depth 15-5: Reserved 4-0: Maximum queue depth Reserved for Serial ATA 80 Major version number 0000h or FFFFh = device does not report version 15: Reserved 14: Reserved for ATA/ATAPI-14 13: Reserved for ATA/ATAPI-13 12: Reserved for ATA/ATAPI-12 11: Reserved for ATA/ATAPI-11 10: Reserved for ATA/ATAPI-10 9: Reserved for ATA/ATAPI-9 8: Reserved for ATA/ATAPI-8 7: Reserved for ATA/ATAPI-7 6: 1 = supports ATA/ATAPI-6 5: 1 = supports ATA/ATAPI-5 4: 1 = supports ATA/ATAPI-4 3: 1 = supports ATA-3 2: Obsolete 1: Obsolete 0: Reserved 5-8 Maxtor Fireball3

37 ATA Bus Interface and ATA Commands Table 5-2 Identify Drive Command Parameters Word CONTENT DESCRIPTION 81 Minor version number 0000h or FFFFh = device does not report version. 0001h-FFFEh = see of ATA/ATAPI-7 specification 82 Command set supported. 15: Obsolete 14: 1 = NOP command supported 13: 1 = READ BUFFER command supported 12: 1 = WRITE BUFFER command supported 11: Obsolete 10: 1 = Host Protected Area feature set supported 9: 1 = DEVICE RESET command supported 8: 1 = SERVICE interrupt supported 7: 1 = release interrupt supported 6: 1 = look-ahead supported 5: 1 = write cache supported 4: Shall be cleared to zero to indicate that the PACKET Command feature set is not supported 3: 1 = mandatory Power Management feature set supported 2: 1 = Removable Media feature set supported 1: 1 = Security Mode feature set supported 0: 1 = SMART feature set supported 83 Command sets supported. 15: Shall be cleared to zero 14: Shall be set to on 13: 1 = FLUSH CACHE EXT command supported 12: 1 = mandatory FLUSH CACHE command supported 11: 1 = Device Configuration Overlay feature set supported 10: 1 = 48-bit Address feature set supported 9: 1 = Automatic Acoustic Management feature set supported 8: 1 = SET MAX security extension supported Maxtor Fireball3 5-9

38 ATA Bus Interface and ATA Commands Table 5-2 Identify Drive Command Parameters Word CONTENT DESCRIPTION 83 7: See Address Offset Reserved Area Boot, INCITS TR27:2001 6: 1 = SET FEATURES subcommand required to spinup after power-up 5: 1 = Power-Up In Standby feature set supported 4: 1 = Removable Media Status Notification feature set supported 3: 1 = Advanced Power Management feature set supported 2: 1 = CFA feature set supported 1: 1 = READ/WRITE DMA QUEUED supported 0: 1 = DOWNLOAD MICROCODE command supported 84 Command set/feature supported extension. 15: Shall be cleared to zero 14: Shall be set to one 13-8: Reserved 7: 1 = WRITE DMA QUEUED FUA EXT command supported 6: 1 = WRITE DMA FUA EXT and WRITE MULTIPLE FUA EXT commands supported 5: 1 = General Purpose Logging feature set supported 4: 1 = Streaming feature set supported 3: 1 = Media Card Pass Through Command feature set supported 2: 1 = Media serial number supported 1: 1 = SMART self-test supported 0: 1 = SMART error logging supported 85 Command set/feature enabled. 15: Obsolete 14: 1 = NOP command enabled 13: 1 = READ BUFFER command enabled 12: 1 = WRITE BUFFER command enabled 11: Obsolete 10: 1 = Host Protected Area feature set enabled 9: 1 = DEVICE RESET command enabled 8: 1 = SERVICE interrupt enabled 5-10 Maxtor Fireball3

39 ATA Bus Interface and ATA Commands Table 5-2 Identify Drive Command Parameters Word CONTENT DESCRIPTION 85 7: 1 = release interrupt enabled 6: 1 = look-ahead enabled 5: 1 = write cache enabled 4: Shall be cleared to zero to indicate that the PACKET Command feature set is not supported. 3: 1 = Power Management feature set enabled 2: 1 = Removable Media feature set enabled 1: 1 = Security Mode feature set enabled 0: 1 = SMART feature set enabled 86 Command set/feature enabled : Reserved 13: 1 = FLUSH CACHE EXT command supported 12: 1 = FLUSH CACHE command supported 11: 1 = Device Configuration Overlay supported 10: 1 = 48-bit Address features set supported 9: 1 = Automatic Acoustic Management feature set enabled 8: 1 = SET MAX security extension enabled by SET MAX SET PASSWORD 7: See Address Offset Reserved Area Boot, INCITS TR27:2001 6: 1 = SET FEATURES subcommand required to spin-up after power-up 5: 1 = Power-Up In Standby feature set enabled 4: 1 = Removable Media Status Notification feature set enabled 3: 1 = Advanced Power Management feature set enabled 2: 1 = CFA feature set enabled 1: 1 = READ/WRITE DMA QUEUED command supported 0: 1 = DOWNLOAD MICROCODE command supported 87 Command set/feature default. 15: Shall be cleared to zero 14: Shall be set to one 13-8: Reserved 7: 1 = WRITE DMA QUEUED FUA EXT command supported Maxtor Fireball3 5-11

40 ATA Bus Interface and ATA Commands Table 5-2 Identify Drive Command Parameters Word CONTENT DESCRIPTION 87 6: 1 = WRITE DMA FUA EXT and WRITE MULTIPLE FUA EXT commands supported 5: General Purpose Logging feature set supported 4: 1 = Valid CONFIGURE STREAM command has been executed 3: 1 = Media Card Pass Through Command feature set enabled 2: 1 = Media serial number is valid 1: 1 = SMART self-test supported 0: 1 = SMART error logging supported 88 15: Reserved 14: 1 = Ultra DMA mode 6 is selected. 0 = Ultra DMA mode 6 is not selected 13: 1 = Ultra DMA mode 5 is selected. 0 = Ultra DMA mode 5 is not selected 12: 1 = Ultra DMA mode 4 is selected. 0 = Ultra DMA mode 4 is not selected 11: 1 = Ultra DMA mode 3 is selected. 0 = Ultra DMA mode 3 is not selected 10: 1 = Ultra DMA mode 2 is selected. 0 = Ultra DMA mode 2 is not selected 9: 1 = Ultra DMA mode 1 is selected. 0 = Ultra DMA mode 1 is not selected 8: 1 = Ultra DMA mode 0 is selected. 0 = Ultra DMA mode 0 is not selected 7: Reserved 6: 1 = Ultra DMA mode 6 and below are supported 5: 1 = Ultra DMA mode 5 and below are supported 4: 1 = Ultra DMA mode 4 and below are supported 3: 1 = Ultra DMA mode 3 and below are supported 2: 1 = Ultra DMA mode 2 and below are supported 1: 1 = Ultra DMA mode 1 and below are supported 0: 1 = Ultra DMA mode 0 is supported 89 Time required for security erase unit completion 90 Time required for Enhanced security erase completion 91 Current advanced power management value 92 Master Password Revision Code 5-12 Maxtor Fireball3

41 ATA Bus Interface and ATA Commands Table 5-2 Identify Drive Command Parameters Word CONTENT DESCRIPTION 93 Hardware reset result. The contents of bits (12:0) of this word shall change only during the execution of a hardware reset 15: Shall be cleared to zero. 14: Shall be set to one. 13: 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: Reserved. 11: 0 = Device 1 did not assert PDIAG-. 1 = Device 1 asserted PDIAG : 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. 8: 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: 7: Reserved. 6: 0 = Device 0 does not respond when Device 1 is selected. 1 = Device 0 responds when Device 1 is selected. 5: 0 = Device 0 did not detect the assertion of DASP-. 1 = Device 0 detected the assertion of DASP- 4: 0 = Device 0 did not detect the assertion of PDIAG-. 1 = Device 0 detected the assertion of PDIAG-. 3: 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. 0: Shall be set to one. Maxtor Fireball3 5-13

42 ATA Bus Interface and ATA Commands Table 5-2 Identify Drive Command Parameters Word CONTENT DESCRIPTION : Vendor s recommended acoustic management value. 7-0: Current automatic acoustic management value 95 Stream Minimum Request Size 96 Stream Transfer Time - DMA 97 Stream Access Latency - DMA Streaming Performance Granularity Maximum user LBA for 48-bit Address feature set. 104 Stream Transfer Time PIO 105 Stream Access Latency PIO 106 Physical sector size 15: Shall be cleared to zero 14: Shall be set to one 13: 1 = Device has multiple logical sectors per physical sector. 12-4: Reserved 3-0: 2 X logical sectors per physical sector 107 Inter-seek delay for ISO-7779 acoustic testing in microseconds Reserved 127 Removable Media Status Notification feature set support 15-2: Reserved 1-0: 00 = Removable Media Status Notification feature set not supported 01 = Removable Media Status Notification feature supported 10 = Reserved 11 = Reserved 5-14 Maxtor Fireball3

43 ATA Bus Interface and ATA Commands Table 5-2 Identify Drive Command Parameters Word CONTENT DESCRIPTION 128 Security status 15-9: Reserved 8: Security level 0 = High, 1 = Maximum 7-6: Reserved 5: 1 = Enhanced security erase supported 4: 1 = Security count expired 3: 1 = Security frozen 2: 1 = Security locked 1: 1 = Security enabled 0: 1 = Security supported Vendor specific 160 CFA power mode 1 15: Word 160 supported 14: Reserved 13: CFA power mode 1 is required for one or more commands implemented by the device 12: CFA power mode 1 disabled 11-0: Maximum current in ma Reserved for assignment by the CompactFlash Association Current media serial number Reserved 255 Integrity word 15-8: Checksum 7-0: Signature Maxtor Fireball3 5-15

44 Chapter 6 SERVICE AND SUPPORT 6.1 Product Support/Technical Assistance/Customer Service For Product Service and Support Information please visit our site at: for warranty service or for technical support. Maxtor Fireball3 6-1

45 GLOSSARY A ACCESS (v) Read, write, or update information on some storage medium, such as a disk. (n) One of these operations. 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. 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. 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 AIRLOCK (all Maxtor drives). ALLOCATION The process of 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. 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. B 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. 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 decimal digit, which may have a value 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. BPI Abbreviation for bits per inch. A measure of how densely information is packed on a storage medium. Flux changes per inch is Maxtor Fireball3 G-1