Maxtor DiamondMax10 80 Installation And Use Manual
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Maxtor DiamondMax10 80 Installation And Use Manual

Serial ata
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DiamondMax 10 80/100/120/160/200/250/300GB

Serial ATA

February 16, 2006
Part Number: 000001914

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  • Page 1: Serial Ata

    DiamondMax 10 80/100/120/160/200/250/300GB Serial ATA February 16, 2006 Part Number: 000001914...
  • Page 2 ©February 16, 2006, 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.
  • Page 3 ® ® Maxtor , MaxFax are registered trademarks of Maxtor Corporation, registered in the U.S.A. and other countries. Maxtor DiamondMax 10, AutoTransfer, AutoRead, AutoWrite, DisCache, DiskWare, Defect Free Interface, and WriteCache are trademarks of Maxtor Corporation. All other brand names or trade- marks are the property of their manufacturers.
  • Page 4 Before You Begin Thank you for your interest in Maxtor Serial ATA hard disk drives. This manual provides technical infor- mation for OEM engineers and systems integrators regarding the installation and use of Maxtor Serial ATA hard drives. Please do not remove or cover up Maxtor factory-installed drive labels. They contain informa- tion required should the drive ever need repair.

  • Page 5: Table Of Contents

    Table of Contents 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 ............1-3 1.5 REFERENCES......................1-4 Chapter 2 GENERAL DESCRIPTION 2.1 PRODUCT OVERVIEW ..................2-1 2.2 KEY FEATURES.....................
  • Page 6 Table of Contents 3.8 FOR SYSTEMS WITH A MOTHERBOARD ATA/SATA ADAPTER....3-20 3.8 FOR SYSTEMS WITH AN ATA ADAPTER BOARD ........3-20 3.8.1 Adapter Board Installation ................3-20 3.9 TECHNIQUES IN DRIVE CONFIGURATION ..........3-23 3.9.1 The 528-Megabytes Barrier ................3-23 3.9.2 The 8.4-Gigabytes Barrier ................
  • Page 7 List of Figures Figure 3-1 DiamondMax 10 Serial ATA Hard Drive Dimensions ........3-1 Figure 3-2 Single-Pack Shipping Container ..............3-3 Figure 3-3 20-Pack Shipping Container .................3-4 Figure 3-4 Data Transfer Rate Jumper Pin Options ............3-5 Figure 3-5 Serial ATA Interface Connector ..............3-5 Figure 3-6 Mounting Dimensions ..................3-9 Figure 3-7...
  • Page 8 Table of Contents List of Tables Table 3-1 Device plug connector pin definition ..............3-9 Table 3-2 Logical Addressing Format................... 3-24 Table 5-1 Supported Commands................... 5-2 Table 5-2 Identify Drive Command Parameters ..............5-5 DiamondMax 10 80/100/120/160/200/250/300GB Serial ATA...
  • Page 9 Table of Contents viDiamondMax 10 80/100/120/160/200/250/300GB Serial ATA...

  • Page 10: Introduction

    Introduction Chapter 1 Introduction 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...

  • Page 11: Manual Organization

    Introduction MANUAL ORGANIZATION This manual is organized into the following chapters: • Chapter 1 – Introduction • Chapter 2 – General Description • Chapter 3 – Installation • Chapter 4 – Product Specifications • Chapter 5 – ATA Bus Interface and ATA Commands •...
  • Page 12 Introduction • Mb/s megabits per second • MB/s megabytes per second • MHz megahertz • ms milliseconds • MSB most significant bit • mV millivolts • ns nanoseconds • PC Personal Computer • SATA serial ATA interface • SPS shock protection system •...

  • Page 13: References

    Introduction • 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.

  • Page 14: General Description

    General Description Chapter 2 GENERAL DESCRIPTION This chapter summarizes the general functions and key features of the DiamondMax 10 80/100/120/160/200/250/300GB Serial ATA hard disk drives, as well as the applicable standards and regulations. PRODUCT OVERVIEW Maxtor’s DiamondMax 10 Serial ATA 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.
  • Page 15 General Description • Reduced pin count enables RAID scalability • Complete software and driver transparent with Serial ATA • Point-to-Point host to device connection • Low voltages • Interface power control features • East installation/configuration (plug/play, no jumpers, no external terminators) •...

  • Page 16: Regulatory Compliance Standards

    General Description Versatility • Power saving modes • Downloadable firmware • Ability to daisy-chain two drives on the interface 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: •...
  • Page 17 General Description DiamondMax 10 80/100/120/160/200/250/300GB Serial ATA...

  • Page 18: Installation

    Installation Chapter 3 INSTALLATION This chapter explains how to unpack, configure, mount, and connect the Maxtor DiamondMax 10 80/100/120/160/200/250/300GB Serial ATA hard disk drive prior to operation. It also explains how to start up, format, and operate the drive. SPACE REQUIREMENTS The DiamondMax 10 hard disk drives are shipped without a faceplate.

  • Page 19: Unpacking Instructions

    Installation 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 10 SATA drives are not stacked or placed on any hard surface after they are unpacked.

  • Page 20: Figure 3-2 Single-Pack Shipping Container

    Installation Figure 3-2 shows the shipping container for a single DiamondMax 10 Serial ATA hard disk drive. Figure 3-3 shows the shipping container for a 20 pack of Maxtor DiamondMax 10 Serial ATA hard drives. Always save the packing materials in case you have to return the product. Figure 3-2 Single-Pack Shipping Container DiamondMax 10 80/100/120/160/200/250/300GB Serial ATA...

  • Page 21: Hardware Options

    Installation Figure 3-3 20-Pack Shipping Container Hardware Options 3.3.1 SATA (Serial ATA) Interface Connector The Maxtor DiamondMax 10 80/100/120/160/200/250/300GB Serial ATA hard disk drive ships with 2 no connect (NC) pins for the purpose of storing a jumper when not in use. For normal operations, no action is necessary. However, if your motherboard does not support the Gen.

  • Page 22: Figure 3-4 Data Transfer Rate Jumper Pin Options

    Installation Figure 3-4 Data Transfer Rate Jumper Pin Options Figure 3-5 Serial ATA Interface Connector DiamondMax 10 80/100/120/160/200/250/300GB Serial ATA...

  • Page 23: Sata Bus Adapter

    Installation 3.3.2 SATA BUS ADAPTER There are two ways you can configure a system to allow the DiamondMax 10 hard disk drives to communicate over the Serial ATA bus of an IBM or IBM-compatible 1. Connect the drive to a Serial ATA bus connector on the motherboard of the PC.

  • Page 24: Table 3-1 Device Plug Connector Pin Definition

    Installation Table 3-1 Device plug connector pin definition Signal Ground Mate segment Differential signal pair A from Phy Ground Mate Differential signal pair B from Phy Ground Mate Signal Segemnt “L” Central Connector Polarizer Power Segment “L” Power segment Ground mate Ground mate...

  • Page 25: Ata Bus Interface Connector (J1, Section C)

    Installation All pins are in a single row, with a 1.27 mm (.050”) pitch. • The comments on the mating sequence in Table 3-1 apply to the case of backplane blindmate connector only. In this case, the mating sequences are: (1) the ground pins P4 and P12; (2) the pre-charge power pins and the other ground pins;...

  • Page 26: Figure 3-6 Mounting Dimensions

    Installation Figure 3-6 Mounting Dimensions DiamondMax 10 80/100/120/160/200/250/300GB Serial ATA...
  • Page 27 Installation 3-10 DiamondMax 10 80/100/120/160/200/250/300GB Serial ATA...

  • Page 28: Clearance

    Installation Figure 3-7 Mounting Screw Clearance’s for the DiamondMax 10 SATA Disk Drive CAUTION: The PCB is very close to the mounting holes. Do not exceed the specified length for the mounting screws. The specified screw length allows full use of the mounting hole threads, while avoiding damaging or placing unwanted stress on the PCB.

  • Page 29: Figure 3-9 Attaching The Cables To The Hard Drive

    Installation 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. 3.4.1.1 Connecting the Motherboard and the Drive 1. Locate an available Serial ATA (SATA) port on your motherboard or on a SATA PCI card and plug in one end of the SATA interface cable.

  • Page 30: Figure 3-10 Completing The Drive Installation

    Installation Figure 3-10 Completing the Drive Installation DiamondMax 10 80/100/120/160/200/250/300GB Serial ATA 3-13...

  • Page 31: Techniques In Drive Configuration

    Installation Before you Start Unlike standard ATA drives, Serial ATA drives do not require the use of jumpers to configure the drive. Use the following URL to obtain the latest information and software updates.www.maxtor.com/en/support/products/ Use the drop-down boxes to locate the type of information you need. TECHNIQUES IN DRIVE CONFIGURATION 3.6.1 The 528-Megabytes Barrier...

  • Page 32: Operating System Limitations

    Installation Whenever possible the Maxtor DiamondMax 10 80/100/120/160/200/250/300GB Serial ATA 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: •...

  • Page 33: Table 3-2 Logical Addressing Format

    Installation Table 3-2 Logical Addressing Format MODELS INTERFAC MAX LBA CAPACITY 6B080M0 SATA 150 16,383 160,086,528 80GB 6L080M0 8 MB Buffer (RoHS) 6B100M0 SATA 150 16,383 195,813,072 100GB 6L100M0 8 MB Buffer (RoHS) 6B120M0 SATA 150 16,383 240,121,728 120GB 6L120M0 8 MB Buffer (RoHS) 6B160M0...

  • Page 34: Product Specifications

    Product Specifications Chapter 4 PRODUCT SPECIFICATIONS Models and Capacities 6B080M0 6B100M0 6B120M0 6B160M0 6B200M0 6B250S0 6B300S0 MODELS 6L080M0 6L100M0 6L120M0 6L160M0 6L200M0 6L250S0 6L300S0 (ROHS) (ROHS) (ROHS) (ROHS) (ROHS) (ROHS) (ROHS) Formatted Capacity 80GB 100GB 120GB 160GB 200GB 250GB 300GB (GB LBA Mode) GB means 1 billion bytes.

  • Page 35: Performance Specifications

    Product Specifications MODELS 80GB 100GB 120GB 160GB 200GB 250GB 300GB Areal Den- sity (Gbits/ 75/60.8 max, ID/ Recording Density ID = 728 (kbpi, ID/ OD = 624 Track Den- 95 ktpi sity (ktpi) Performance Specifications MODELS 80GB 100GB 120GB 160GB 200GB 250GB 300GB...

  • Page 36: Physical Dimensions

    Product Specifications MODELS 80GB 100GB 120GB 160GB 200GB 250GB 300GB Data Buffer Size 8 MB 16MB (MB)/Type < 8.0 Drive Ready Time (typical sec) Physical Dimensions PARAMETER VALUE Height (maximum in mm) 26.10 Width (typical mm) 101.6 Depth (maximum in mm) 5.787 in.

  • Page 37: Power Requirements

    Product Specifications Power Requirements (Avg) 1 and 2 Disks MODE 12V (mA) 5V (mA) POWER (w) Spin-up (peak) 1778 25.1 Seek 86.3 13.9 Read/Write 10.1 Idle Standby Sleep 4.5.1 Power Requirements (Avg) 3 Disk MODE 12V (mA) 5V (mA) POWER (W) Spin-up (peak) 1812 25.5...

  • Page 38: Power Mode Definitions

    Product Specifications 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.

  • Page 39: Environmental Limits

    Product Specifications Environmental Limits NON-OPERATING/ PARAMETER OPERATING STORAGE Temperature 0×C - 60×C low temperature (-40 C) The drive temperature is measured at the base plate high temperature (71 C) per motor well. MIL-STD-810E, method 501.3, climatic category; hot-induced conditions. Thermal Gradient 25 C per hour (maximum) Relative Humidity 5% to 95% (non-condensing)

  • Page 40: Shock And Vibration

    Product Specifications Shock and Vibration PARAMETER OPERATING NON-OPERATING Mechanical Shock R= 0.988/shock at 60 Gs; 2 msec, 1/2 sine R= 0.999/shock at 30 Gs R=0.90@>= 300G R=0.95@>= 250G R=0.99@>= 200G Rotational Shock R=0.988 @ 2000 rad/sec R=0.95 @ 20K rad/sec R=0.90 @ 20K rad/sec Rotational Random 2000 Hz...

  • Page 41: Reliability Specifications

    Product Specifications 4.10 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. Start/Stop Cycles >50,000 This indicates the average minimum cycles for reliable start/stop function.

  • Page 42: Canadian Emissions Statement

    Product Specifications 4.11.2 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.
  • Page 43 Product Specifications 4-10 DiamondMax 10 80/100/120/160/200/250/300GB Serial ATA...

  • Page 44: Ata Bus Interface And Ata Commands

    ATA Bus Interface and ATA Commands Chapter 5 ATA BUS INTERFACE AND ATA COMMANDS This chapter describes the interface between Maxtor DiamondMax 10 Serial ATA 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.

  • Page 45: Command Interface

    ATA Bus Interface and ATA Commands COMMAND INTERFACE 5.5.1 General Feature Set The µProcessor, Disk Controller, and ATA Interface electronics are contained in a proprietary ASIC developed by Maxtor. 5.5.2 Supported Commands The Maxtor DiamondMax 10 Serial ATA hard disk drives support all the mandatory commands from the general feature set for devices not supporting the Packet command feature set.
  • Page 46 ATA Bus Interface and ATA Commands Table 5-1 Supported Commands Feature Command Command Register Code Value(s) READ LONG 22h, 23h READ FPDMA QUEUED READ MULTIPLE READ MULTIPLE EXTENSION READ NATIVE MAX ADDRESS READ NATIVE MAX ADDRESS EXTENSION READ LOG EXTENSION READ SECTOR(S) 20h, 21h READ SECTOR(S) EXTENSION...
  • Page 47 ATA Bus Interface and ATA Commands Table 5-1 Supported Commands Feature Command Command Register Code Value(s) SET MULTIPLE MODE SLEEP 99h, E6h SMART DISABLE OPERATIONS SMART ENABLE OPERATIONS SMART ENABLE/DISABLE ATTRIBUTE AUTOSAVE SMART EXECUTE OFF-LINE IMMEDIATE SMART READ DATA SMART READ LOG SMART RETURN STATUS SMART SAVE ATTRIBUTE VALUES SMART WRITE LOG...

  • Page 48: Table 5-2 Identify Drive Command Parameters

    ATA Bus Interface and ATA Commands Note: 1. As defined in the ATA/ATAPI-7 standard. 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.
  • Page 49 ATA Bus Interface and ATA Commands Table 5-2 Identify Drive Command Parameters Word CONTENT DESCRIPTION Retired 10-19 Serial number (20 ASCII characters) 20-21 Retired Reserved 23-26 Firmware revision (8 ASCII characters) 27-46 Model number (40 ASCII characters) 15-8: 7-0: 00h = Reserved 01h-FFh: = Maximum number of sectors that shall be transferred per interrupt on READ/ WRITE MULTIPLE commands Reserved...
  • Page 50 ATA Bus Interface and ATA Commands Table 5-2 Identify Drive Command Parameters Word CONTENT DESCRIPTION 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...
  • Page 51 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: Cycle time in nanoseconds Minimum PIO transfer cycle time with IORDY flow control 15-0: Cycle time in nanoseconds 69-70 Reserved (for future command overlap and queuing) 71-74...
  • Page 52 ATA Bus Interface and ATA Commands Table 5-2 Identify Drive Command Parameters Word CONTENT DESCRIPTION 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. Obsolete 1 = NOP command supported 1 = READ BUFFER command supported 1 = WRITE BUFFER command supported Obsolete...
  • Page 53 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...
  • Page 54 ATA Bus Interface and ATA Commands Table 5-2 Identify Drive Command Parameters Word CONTENT DESCRIPTION 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.
  • Page 55 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...
  • Page 56 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 Shall be cleared to zero. Shall be set to one.
  • Page 57 ATA Bus Interface and ATA Commands Table 5-2 Identify Drive Command Parameters Word CONTENT DESCRIPTION 15-8: Vendor’s recommended acoustic management value. 7-0: Current automatic acoustic management value Stream Minimum Request Size Stream Transfer Time - DMA Stream Access Latency - DMA 98-99 Streaming Performance Granularity 100-103...
  • Page 58 ATA Bus Interface and ATA Commands Table 5-2 Identify Drive Command Parameters Word CONTENT DESCRIPTION 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...
  • Page 59 ATA Bus Interface and ATA Commands 5-16 DiamondMax 10 80/100/120/160/200/250/300GB Serial ATA...

  • Page 60: Service And Support

    Service and Support Chapter 6 SERVICE AND SUPPORT GETTING HELP Before contacting Maxtor Support, use the Hard Disk Information feature in MaxBlast to view the model number and serial number of your drive. These numbers can be used to get help from Maxtor Support, register your drive, and look up information on the Maxtor website.
  • Page 61 Service and Support DiamondMax 10 80/100/120/160/200/300GB Serial ATA...
  • Page 62 Breaking the 137GB Storage Barrier Appendix A BREAKING THE 137 GIGABYTE STOR- AGE BARRIER This appendix provides information about the 137GB storage barrier. It discusses the history, cause and the solution to overcome this barrier. Breaking the 137 Gigabyte Storage Barrier Capacity barriers have been a fact of the personal computer world since its beginnings in the early 1980’s.
  • Page 63 Breaking the 137GB Storage Barrier Past barriers often frustrated people trying to add a new hard disk to an older system when they discovered that not all of the designed capacity of the hard disk was accessible. This inability to access the entire drive is referred to as a “capacity barrier” and it has been seen and overcome many times in the computer and disk drive industry.
  • Page 64 Breaking the 137GB Storage Barrier A.1.2 Solving the 137 Gigabyte Capacity Barrier As described earlier, the issue causing the 137-gigabyte barrier is the 28-bit addressing method of the original ATA specification. A change to expand this method was required to provide more address bits for the interface, allowing significant growth for many years to come.
  • Page 65 Breaking the 137GB Storage Barrier The BIOS companies will also have to perform some work to recognize the increased capacity of the devices attached to the bus and allow the extended 48-bit commands to pass on to the devices. Boot partitions will also be an issue for the capacity of the drive if the BIOS does not recognize the 48-bit addressing scheme at or before the system boots the OS from the hard drive.
  • Page 66 Breaking the 137GB Storage Barrier Appendix C: Resources • Maxtor “Big Drive” web site for resource information: http://www.maxtor.com/bigdrive • ATA/ATAPI-6: http://www.T13.org DiamondMax 10 80/100/120/160/200/250/300GB Serial ATA...
  • Page 67 Breaking the 137GB Storage Barrier DiamondMax 10 80/100/120/160/200/250/300GB Serial ATA...
  • Page 68 Glossary BAD BLOCK – A block (usually the size of a sector) that cannot reliably hold data because of a media flaw or damaged format markings. ACCESS – (v) Read, write, or update information on some storage medium, such as BAD TRACK TABLE –...
  • Page 69 Glossary CAPACITY – The amount of information from the surface used for data that contains that can be stored on a disk drive. The data is only disk timing and positioning information stored in bytes, and capacity is usually and contains no data. expressed in megabytes.
  • Page 70 Glossary 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 changes per inch (FCI), with typical values in the thousands. ECC – Acronym for error correction code . The recording of extra verifying information FLYING HEIGHT –...
  • Page 71 Glossary over a magnesium or aluminum platter. INTERLEAVE – The arrangement of Because hard disks spin more rapidly than sectors on a track. A 1:1 interleave arranges floppy disks, and the head flies closer to the the sectors so that the next sector arrives at the disk, hard disks can transfer data faster and read/write heads just as the computer is ready store more in the same volume.
  • Page 72 Glossary which the read/write heads are waiting for the measurement equal to 1,024 kilobytes, or data to rotate into position so that it can be 1,048,576 bytes except when referring to disk accessed. Based on a disk rotation speed of storage capacity.
  • Page 73 Glossary MTTR – Mean Time To Repair. The PLATTER – An disk made of metal (or average time it takes to repair a drive that has other rigid material) that is mounted inside a failed for some reason. This only takes into fixed disk drive.
  • Page 74 Glossary REMOVABLE DISK – Generally said of SECTOR – A section of space along a track disk drives where the disk itself is meant to be on the disk, or the data that is stored in that removed, and in particular of hard disks using section.
  • Page 75 Glossary STEPPER – A type of motor that moves in discrete amounts for each input electrical pulse. Stepper motors used to be widely used UNFORMATTED CAPACITY – The for read/write head positioner, since they can total number of bytes of data that could be fit be geared to move the head one track per onto a disk.
  • Page 76 Index 3-18 abbreviations maximum screw torque 2-4, 3-20 adapter board mechanical dimensions 3-20 motherboard 3-17 mounting 3-17 mounting dimensions 3-17 mounting holes cable Select 3-18 mounting screw clearance cable select (CS) jumper 3-18 mounting screws 3-19 clearance 3-26 MS-DOS command descriptions 3-11, 3-16 connector, IDE 3-19...

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