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Quantum Fireball Plus AS
Quantum Fireball Plus AS
Quantum Fireball Plus AS
Quantum Fireball Plus AS
10.2/20.5/30.0/40.0/60.0 GB AT
10.2/20.5/30.0/40.0/60.0 GB AT
10.2/20.5/30.0/40.0/60.0 GB AT
10.2/20.5/30.0/40.0/60.0 GB AT
Product Manual
Product Manual
Product Manual
Product Manual
December 12, 2000
81-121729-04

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Summary of Contents for Quantum FIREBALL PLUS AS 10.2

  • Page 1 Quantum Fireball Plus AS Quantum Fireball Plus AS Quantum Fireball Plus AS Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 10.2/20.5/30.0/40.0/60.0 GB AT 10.2/20.5/30.0/40.0/60.0 GB AT 10.2/20.5/30.0/40.0/60.0 GB AT Product Manual Product Manual Product Manual Product Manual December 12, 2000 81-121729-04...
  • Page 2 U.S.A. and other countries. Capacity for the extraordinary, Quantum Fireball Plus AS, AutoTransfer, AutoRead, AutoWrite, DisCache, DiskWare, Defect Free Interface, and WriteCache are trademarks of Quantum Corporation. All other brand names or trademarks are the property of their manufacturers.
  • Page 3: Table Of Contents

    3.7 FOR SYSTEMS WITH A MOTHERBOARD ATA ADAPTER ....... 3-13 3.8 FOR SYSTEMS WITH AN ATA ADAPTER BOARD..........3-13 3.8.1 Adapter Board Installation ................3-13 3.9 TECHNIQUES IN DRIVE CONFIGURATION ............3-15 3.9.1 The 528-Megabytes Barrier ................3-15 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 4 4.13 SPINDLE IMBALANCE ................... 4-11 4.14 DISK ERRORS ......................4-11 Chapter 5 BASIC PRINCIPLES OF OPERATION 5.1 Quantum Fireball Plus AS DRIVE MECHANISM............. 5-1 5.1.1 Base Casting Assembly ..................5-3 5.1.2 DC Motor Assembly ................... 5-3 5.1.3 Disk Stack Assemblies ..................5-3 5.1.4 Headstack Assembly ...................
  • Page 5 6.7.25 Set Features EFh ....................6-71 6.7.26 Set Features (Ultra ATA/100) ................. 6-71 6.7.27 Read Defect List ....................6-72 6.7.28 Configuration ....................6-75 6.7.29 Host Protected Mode Feature ................6-79 6.8 ERROR REPORTING ....................6-86 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 6 Drive Packing Assembly .................3-2 Figure 3-3 Drive Packing Assembly of a Polypropylene 20-Pack Container ....3-3 Figure 3-4 Jumper Locations for the Quantum Fireball Plus AS Hard Disk Drive ..3-4 Figure 3-5 Jumper Locations on the Interface Connector ..........3-4 Figure 3-6 AT Connector and Jumper Location ..............3-7...
  • Page 7 Table 6-14 Error Register Bits ....................6-25 Table 6-15 Drive Head Register Bits ..................6-26 Table 6-16 Status Register Bits....................6-27 Table 6-17 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT Command Codes and Parameters................. 6-28 Table 6-18 Diagnostics Codes....................6-34 Table 6-19 Device Attribute Thresholds Data Structure ............
  • Page 8 Table 6-31 Accessing the SET CONFIGURATION Command ..........6-76 Table 6-32 Accessing the SET CONFIGURATION WITHOUT SAVING TO DISK Command................6-77 Table 6-33 Configuration Command Format ................6-78 Table 6-34 Command Errors ....................6-86 viii Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 9: About This Manual

    AUDIENCE AUDIENCE AUDIENCE The Quantum Fireball Plus ASM™10.2/20.5/30.0/40.0/60.0 GB AT Product Manual is intended for several audiences. These audiences include: the end user, installer, developer, original equipment manufacturer (OEM), and distributor. The manual provides information about installation, principles of operation, interface command implementation, and maintenance.
  • Page 10 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. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 11: References

    An example is FORMAT C:/S. REFERENCES REFERENCES REFERENCES REFERENCES For additional information about the AT interface, refer to: • IBM Technical Reference Manual #6183355, March 1986. • ATA Common Access Method Specification, Revision 5.0. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 12 About This Manual Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 13: General Description

    GENERAL DESCRIPTION GENERAL DESCRIPTION GENERAL DESCRIPTION This chapter summarizes the general functions and key features of the Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT hard disk drives, as well as the applicable standards and regulations. PRODUCT OVERVIEW PRODUCT OVERVIEW PRODUCT OVERVIEW PRODUCT OVERVIEW Quantum’s Fireball Plus AS hard disk drives are part of a family of high...
  • Page 14 • Average seek time of 8.5 ms • Average rotational latency of 4.17 ms • New Ultra ATA interface with Quantum-patented Ultra ATA/100 protocol supporting burst data transfer rates of 100 MB/s. • 2 MB buffer with 1.9 MB (approximate) Advance Cache Management (ACM).
  • Page 15: Regulatory Compliance Standards

    HARDWARE REQUIREMENTS HARDWARE REQUIREMENTS The Quantum Fireball Plus AS 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.
  • Page 16 General Description Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 17: Installation

    SPACE REQUIREMENTS SPACE REQUIREMENTS SPACE REQUIREMENTS The Quantum Fireball Plus AS hard disk drives are shipped without a faceplate. Figure 3-1 shows the external dimensions of the Quantum Fireball Plus AS 10.2/ 20.5/30.0/40.0/60.0 GB AT drives. 26.1 mm (max) (1.00 inches) 147 mm (max) (5.75 inches)
  • Page 18: Unpacking Instructions

    3. When you are ready to install the drive, remove it from the ESD bag. Figure 3-2 shows the packing assembly for a single Quantum Fireball Plus AS hard disk drive. A 20-pack shipping container is available for multiple drive shipments.
  • Page 19: Figure 3-3 Drive Packing Assembly Of A Polypropylene 20-Pack Container

    Note: The 20-pack container should be shipped in the same way it was received from Quantum. When individual drives are shipped from the 20-pack container then it should be appropri- ately packaged (not supplied with the 20-pack) to prevent dam- age.
  • Page 20: Hardware Options

    HARDWARE OPTIONS HARDWARE OPTIONS The configuration of a Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB 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.
  • Page 21: Cable Select (Cs) Jumper

    Cable Select signal: pin 28 of the ATA bus connector. Please note that pin 28 is a vendor-specific pin that Quantum 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).
  • Page 22: Drive Select (Ds) Jumper

    ATA bus connector. This allows two drives to operate in a Master/Slave relationship according to the drive cable placement. The Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB 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.
  • Page 23: Alternate Capacity (Ac)

    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 Quantum Fireball Plus AS drives is shown in the following table: AC JUMPER OUT...
  • Page 24: Ata Bus Adapter

    ATA BUS ADAPTER ATA BUS ADAPTER ATA BUS ADAPTER There are two ways you can configure a system to allow the Quantum Fireball Plus AS hard disk drives to communicate over the ATA bus of an IBM or IBM- compatible PC: 1.
  • Page 25: Mounting

    Orientation Orientation The mounting holes on the Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT hard disk drives allow the drive to be mounted in any orientation. Figure 3-6 and Figure 3-7 show the location of the three mounting holes on each side of the drive.
  • Page 26: Figure 3-8 Mounting Screw Clearance For The Quantum Fireball Plus As

    Installation Mounting Screw Clearance for the Quantum Fireball Plus AS Hard Disk Drives Figure 3-8 Figure 3-8 Figure 3-8 Figure 3-8 CAUTION: CAUTION: CAUTION: CAUTION: The PCB is very close to the mounting holes. Do not ex- ceed the specified length for the mounting screws. The...
  • Page 27: Clearance

    Ventilation Ventilation Ventilation The Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB 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)
  • Page 28: Dc Power (J1, Section A)

    ATA Bus Interface Connector (J1, Section C) ATA Bus Interface Connector (J1, Section C) On the Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT hard disk drives, the ATA bus interface cable connector (J1, section C) is a 40-pin Universal Header, as shown in Figure 3-9.
  • Page 29: For Systems With A Motherboard Ata Adapter

    FOR SYSTEMS WITH A MOTHERBOARD ATA ADAPTER FOR SYSTEMS WITH A MOTHERBOARD ATA ADAPTER You can install the Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT hard disk drives in an AT-compatible system that contains a 40-pin ATA bus connector on the motherboard.
  • Page 30: Figure 3-10 Drive Power Supply And Ata Bus Interface Cables

    3. Secure the drive to the system chassis by using the mounting screws, as shown in Figure 3-11. Drive Power Supply and ATA Bus Interface Cables Figure 3-10 Figure 3-10 Figure 3-10 Figure 3-10 3-14 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 31: Techniques In Drive Configuration

    DOS based operating systems will be limited to use only 1024 cylinders. This will reduce the effective capacity of the drive to 528 Mbytes. Whenever possible the Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT drive should be used on systems that support LBA translation to ensure the use of the entire capacity of the disk drive.
  • Page 32: The 8.4-Gigabytes Barrier

    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 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT drive should be used on systems with BIOS that support Int 13 extensions. If...
  • Page 33: System Startup And Operation

    PC. During the AT system CMOS setup, you must enter the drive type for the Quantum Fireball Plus AS 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.
  • Page 34 Logical Cylinders x Logical Heads x Logical Sectors/Track x 512 = 8,455,200,768 Boot the system using the operating system installation disk—for example, MS-DOS—then follow the installation instructions in the operating system manual. 3-18 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 35: Specifications

    Quantum Fireball Plus AS hard disk drives. SPECIFICATION SUMMARY SPECIFICATION SUMMARY SPECIFICATION SUMMARY SPECIFICATION SUMMARY Table 4-1 gives a summary of the Quantum Fireball Plus AS hard disk drives. Table 4-1 Table 4-1 Table 4-1 Table 4-1 Specifications...
  • Page 36 1. Disk to read buffer transfer rate is zone-dependent, instantaneous 2. Refer to Section 4.14, “DISK ERRORS” for details on error rate definitions. 3. CSS specifications assumes a duty cycle of one power off operation for every one idle spin down. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 37: Formatted Capacity

    FORMATTED CAPACITY FORMATTED CAPACITY At the factory, the Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT hard disk drives receive a low-level format that creates the actual tracks and sectors on the drive. Table 4-2 shows the capacity resulting from this process. Formatting done at the user level, for operation with DOS, UNIX, or other operating systems, may result in less capacity than the physical capacity shown in Table 4-2.
  • Page 38: Timing Specifications

    Specifications TIMING SPECIFICATIONS TIMING SPECIFICATIONS TIMING SPECIFICATIONS TIMING SPECIFICATIONS Table 4-3 illustrates the timing specifications of the Quantum Fireball Plus AS hard disk drives. Table 4-3 Table 4-3 Timing Specifications Table 4-3 Table 4-3 TYPICAL TYPICAL TYPICAL TYPICAL WORST WORST...
  • Page 39: Power

    POWER POWER POWER POWER The Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT hard disk drives operate from two supply voltages: • +12V ±10% • +5V ±5% The allowable ripple and noise is 250 mV peak-to-peak for the +12 Volt supply and 150 mV peak-to-peak for the +5 Volt supply.
  • Page 40: Power Requirements

    Power Requirements Power Requirements Table 4-5 lists the voltages and typical average corresponding currents for the various modes of operation of the Quantum Fireball Plus AS hard disk drives. Table 4-5 Table 4-5 Typical Power and Current Consumption Table 4-5...
  • Page 41: Acoustics

    ACOUSTICS ACOUSTICS ACOUSTICS Table 4-6 specifies the acoustical characteristics of the Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT hard disk drive. The acoustics are measured in an anechoic chamber with background noise at least <10dBA less than the expected sound pressure Lp(A). To distinguish between sound power and sound pressure standards, sound power Lw(A) is specified in Bels.
  • Page 42: Mechanical

    Specifications MECHANICAL MECHANICAL MECHANICAL MECHANICAL Quantum Fireball Plus AS hard disk drives are designed to meet the form factor dimensions of the SFF committee specification SFF8300. Height: 26.1 mm maximum Width: 101.6 ± 0.25mm Depth: 147 mm maximum Weight: 1.35 lb...
  • Page 43: Shock And Vibration

    When packed in its 1-pack shipping container, the Quantum Fireball Plus AS drives can withstand a drop from 30 inches onto a concrete surface on any of its surfaces, six edges, or three corners.
  • Page 44: Handling The Drive

    Use both hands while handling the drive and hold the drive by its edges. Quantum drives are designed to withstand normal handling, however, hard drives can be damaged by electrostatic discharge (ESD), dropping the drive, rough handling, and mishandling.
  • Page 45: Electromagnetic Susceptibility

    4.14 DISK ERRORS DISK ERRORS 4.14 4.14 DISK ERRORS DISK ERRORS Table 4-9 provides the error rates for the Quantum Fireball Plus AS hard disk drives. Table 4-9 Table 4-9 Error Rates Table 4-9 Table 4-9 ERROR TYPE ERROR TYPE...
  • Page 46: Basic Principles Of Operation

    BASIC PRINCIPLES OF OPERATION BASIC PRINCIPLES OF OPERATION This chapter describes the operation of Quantum Fireball Plus AS AT hard disk drives’ functional subsystems. It is intended as a guide to the operation of the drive, rather than a detailed theory of operation.
  • Page 47: Figure 5-1 Quantum Fireball Plus As At Hard Disk Drive Exploded View

    Basic Principles of Operation Figure 5-1 Figure 5-1 Figure 5-1 Figure 5-1 Quantum Fireball Plus AS AT Hard Disk Drive Exploded View Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 48: Base Casting Assembly

    Disk Stack Assemblies Disk Stack Assemblies Disk Stack Assemblies The disk stack assembly in the Quantum Fireball Plus AS hard disk drives consist of disks secured by a disk clamp. The aluminum-alloy disks have a sputtered thin- film magnetic coating.
  • Page 49: Headstack Assembly

    Rotary Positioner Assembly Rotary Positioner Assembly The rotary positioner, or rotary voice-coil actuator, is a Quantum-proprietary design that consists of upper and lower permanent magnet plates, a rotary single- phase coil molded around the headstack mounting hub, and a bearing shaft. The single bi-polar magnet consists of two alternating poles and is bonded to the magnet plate.
  • Page 50: Air Filtration

    Air Filtration Air Filtration The Quantum Fireball Plus AS AT hard disk drives are Winchester-type drives. The heads fly very close to the media surface. Therefore, it is essential that the air circulating within the drive be kept free of particles. Quantum assembles the drive in a Class-100 purified air environment, then seals the drive with a metal cover.
  • Page 51: Integrated Μprocessor, Disk Controller And Ata Interface Electronics

    Electronics Electronics Electronics Electronics The µProcessor, Disk Controller, and ATA Interface electronics are contained in a proprietary ASIC developed by Quantum, as shown below in Figure 5-3. Figure 5-3 Block Diagram Figure 5-3 Figure 5-3 Figure 5-3 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 52 The Formatter also directly drives the read and write gates ( ) and Command Mode Interface of the Read/Write ASIC and the R/W Preamplifier, as well as passing write data to the Precompensator circuit in the Read/Write ASIC. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 53: Read/Write Asic

    The Read/Write ASIC comprises 12 main functional modules (described below): • Pre-Compensator • Variable Gain Amplifier (VGA) • Butterworth Filter • FIR Filter • Flash A/D Converter • Viterbi Detector • ENDEC • Servo Processor Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 54 High speed interface for digital control of all internal blocks. 5.2.2.12 5.2.2.12 5.2.2.12 5.2.2.12 TA Detection and Correction TA Detection and Correction TA Detection and Correction TA Detection and Correction Detects thermal asperities’ defective sectors and enables thermal asperity recoveries. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 55: Preamplifier And Write Driver

    Disk Caching Disk Caching Disk Caching The Quantum Fireball Plus AS AT hard disk drives incorporate DisCache, a 1.9 MB disk cache, to enhance drive performance. This integrated feature is user-programmable and can significantly improve system throughput. Read and write caching can be enabled or disabled by using the Set Configuration command.
  • Page 56 Basic Principles of Operation DisCache works by continuing to fill its cache memory with adjacent data after transferring data requested by the host. Unlike a noncaching controller, Quantum’s disk controller continues a read operation after the requested data has been transferred to the host system.
  • Page 57: Head And Cylinder Skewing

    Head and Cylinder Skewing Head and Cylinder Skewing Head and Cylinder Skewing Head and Cylinder Skewing Head and cylinder skewing in the Quantum Fireball Plus AS AT hard disk drives minimize latency time and thus increases data throughput. 5.3.2.1 5.3.2.1...
  • Page 58: Error Detection And Correction

    Background Information on Error Correction Code and ECC On-the-Fly Background Information on Error Correction Code and ECC On-the-Fly A sector on the Quantum Fireball Plus AS AT drive is comprised of 512 bytes of user data, followed by four cross-checking (XC) bytes (32 bits), followed by 40 ECC check bytes (320 bits) or 32 10-bit symbols.
  • Page 59: Figure 5-4 Sector Data Field With Ecc Check Bytes

    ECC check bytes can also be corrected. Each time a sector of data is read, the Quantum Fireball Plus AS drives will generate a new set of ECC check symbols and cross-checking bytes from the user data.
  • Page 60: Defect Management

    The ARR bit enables the automatic reallocation of defective sectors. The Quantum Fireball Plus AS AT drives are shipped from the fac- tory with the automatic read reallocation feature enabled so that any new defective sectors can be easily and automatically reallocat- ed for the average AT end user.
  • Page 61 Basic Principles of Operation Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 5-16...
  • Page 62 Basic Principles of Operation 5-17 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 63: Ata Bus Interface And Ata Commands

    ATA BUS INTERFACE AND ATA COMMANDS ATA BUS INTERFACE AND ATA COMMANDS This chapter describes the interface between Quantum Fireball Plus AS 10.2/20.5/ 30.0/40.0/60.0 GB AT 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 64 Ground between the host system and the drive. Data Bus 3–18 An 8/16-bit, bidirectional data bus between the host and the drive. D0–D7 are used for 8-bit transfers, such as registers and ECC bytes. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 65: Table 6-1 Drive Connector Pin Assignments (J1, Section C)

    When IORDY is deasserted, it is in a high-impedance state and it is the host’s responsibility to pull this signal up to a high level (if necessary). Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 66 D15 are used for 16-bit data transfers. Drive Address Bus A 3-bit, binary-coded address supplied by the host when accessing a register or the drive’s data port. Bit 1 Bit 0 Bit 2 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 67 Chip-select signal decoded from the host address bus. Used to select the host-accessible Command Block Registers. Chip Select 1 CS3FX– Chip select signal decoded from the host address bus. Used to select the host-accessible Control Block Registers. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 68 43 W Note: Note: Note: Note: Only those signals requiring termination are listed in this table. If a signal is not listed, series termination is not required for operation in an Ultra ATA/100 mode. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 69 Set Features. The drive becomes aware of this change upon assertion of the –DMACK line. These lines revert back to their original definitions upon the deassertion of –DMACK at the termination of the DMA burst. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 70: Table 6-3 Signal Line Definitions

    DATA BUS BIT 13 <—> DD13 DATA BUS BIT 14 <—> DD14 DATA BUS BIT 15 <—> DD15 DEVICE ACTIVE OR SLAVE (See Note 1) DASP– (DEVICE 1) PRESENT DEVICE ADDRESS BIT 0 —> Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 71: Host Interface Timing

    The PIO host interface timing shown in Table 6-5 is in reference to signals at 0.8 volts and 2.0 volts. All times are in nanoseconds, unless otherwise noted. Figure 6- 1 provides a timing diagram. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 72: Figure 6-1 Pio Interface Timing

    Read Data Valid to IORDY active (if IORDY is initially low after tA) 1. ATA Mode 4 timing is listed for reference only. PIO Interface Timing Figure 6-1 Figure 6-1 Figure 6-1 Figure 6-1 6-10 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 73 DMACK– Data Tristate 1. ATA Mode 2 timing is listed for reference only. 2. The Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT drive tristates after each word transferred. 3. Symbol tz only applies on the last tristate at the end of a multiword DMA transfer cycle.
  • Page 74 31.0 20.0 Sender DZFS Device 150 0 150 0 150 0 100 0 100 0 Note 2 Host Host Note 3 Host Device Host Sender Recipient Device IORDYZ Device ZIORDY Host Sender 6-12 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 75: Table 6-8 Ultra Dma Data Burst Timing Descriptions

    DMACK to STOP during data out burst initiation) Ready-to-final-STROBE time (no STROBE edges shall be sent this long after negation of DMARDY-) Ready-to-pause time (that recipient shall wait to pause after negating DMARDY-) Maximum time before releasing IORDY IORDYZ Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-13...
  • Page 76 Figures 6-3 through 6-12 define the timings associated with all phases of Ultra DMA bursts. 6-14 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 77: Figure 6-3 Initiating A Data In Burst

    Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-15...
  • Page 78: Figure 6-5 Host Pausing A Data In Burst

    Tack STOP (host) Tack HDMARDY- (host) Tiordyz DSTROBE (device) Tzah Tdvh DD(15:0) Tack DA0, DA1, DA2, CS0-, CS1- Device Terminating a Data In Burst Figure 6-6 Figure 6-6 Figure 6-6 Figure 6-6 6-16 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 79: Figure 6-7 Host Terminating A Data In Burst

    Tenv STOP (host) Tziordy DDMARDY- (device) Tack Tdvs HSTROBE (host) Tdvh DD(15:0) (host) Tack DA0, DA1, DA2, CS0-, CS1- Initiating a Data Out Burst Figure 6-8 Figure 6-8 Figure 6-8 Figure 6-8 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-17...
  • Page 80: Figure 6-9 Sustained Data Out Burst

    Note: The device knows the burst is fully paused Trp ns after DDMARDY- is negated and may then negate DMARQ to terminate the burst. Tsr timing need not be met for an asynchronous pause. 6-18 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 81: Figure 6-11 Host Terminating A Data Out Burst

    STOP (host) Tiordyz DDMARDY- (device) Tack HSTROBE (host) Tdvs Tdvh DD(15:0) (host) Tack DA0, DA1, DA2, CS0-, CS1- Host Terminating a Data Out Burst Figure 6-11 Figure 6-11 Figure 6-11 Figure 6-11 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-19...
  • Page 82: Figure 6-12 Device Terminating A Data Out Burst

    Host Interface RESET Timing Table 6-9 Table 6-9 Table 6-9 Table 6-9 SYMBOL DESCRIPTION MINIMUM MAXIMUM — RESET– Pulse width Host Interface RESET Timing Figure 6-13 Figure 6-13 Figure 6-13 Figure 6-13 6-20 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 83: Register Address Decoding

    Sector Count Sector Number Sector Number LBA Bits 0–7 LBA Bits 0–7 Cylinder Low Cylinder Low LBA Bits 8–15 LBA Bits 8–15 Cylinder High Cylinder High LBA Bits 16–23 LBA Bits 16–23 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-21...
  • Page 84: Register Descriptions

    REGISTER DESCRIPTIONS REGISTER DESCRIPTIONS REGISTER DESCRIPTIONS REGISTER DESCRIPTIONS The Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT hard disk drives emulate the ATA Command and Control Block Registers. Functional descriptions of these registers are given in the next two sections. 6.6.1 6.6.1...
  • Page 85 INTRQ through a tristate buffer to the host. When nIEN equals 1 or the drive is not selected, the host interrupt signal INTRQ is in a high- impedance state, regardless of the presence or absence of a pending interrupt. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-23...
  • Page 86: Command Block Registers

    When the error bit in the Status Register is set to 1, the host interprets the Error Register bits as shown in Table 6-14. 6-24 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 87: Table 6-14 Error Register Bits

    Cylinder Low Register. In LBA mode, this register contains bits 8 to 15. At command completion, the drive updates this register to reflect the current LBA bits 8 to 15. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-25...
  • Page 88 In LBA mode, bits 3–0 (HS0–HS3) contain bits 24–27 of the LBA Address. At command completion, the host updates this register to reflect the current LBA bits 24 to 27. 6-26 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 89: Table 6-16 Status Register Bits

    Error Register contain additional information about the cause of the error. Note: Note: The content of # bit is command dependent. Note: Note: Bits 2 and 1 are obsolete according to the ATA-4 specification. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-27...
  • Page 90: Table 6-17 Quantum Fireball Plus As 10.2/20.5/30.0/40.0/60.0 Gb At Command Codes And Parameters

    Each of these commands is distinguished by a unique subcode. For a detailed description of each command, see Section 6.7, "COMMAND DESCRIPTIONS," found later in this chapter. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT Command Codes Table 6-17 Table 6-17...
  • Page 91: Command Descriptions

    COMMAND DESCRIPTIONS COMMAND DESCRIPTIONS The Quantum Fireball Plus AS hard disk drives support all standard ATA drive commands. The drive decodes, then executes, commands loaded into the Command Block Register. In applications involving two hard drives, both drives receive all commands.
  • Page 92: Read Sectors

    3 3 3 3 2 2 2 2 1 1 1 1 0 0 0 0 Error IDNF ABRT Sector Count Sector Number Cylinder Low Cylinder High Device/ Head HEAD number or LBA Status DRDY 6-30 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 93: Write Sectors

    3 3 3 3 2 2 2 2 1 1 1 1 0 0 0 0 Error IDNF ABRT Sector Count Sector Number Cylinder Low Cylinder High Device/ Head HEAD number or LBA Status DRDY Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-31...
  • Page 94: Read Verify Sectors

    Register Error IDNF ABRT Sector Count Sector Number Sector Number or LBA Cylinder Low Cylinder low or LBA Cylinder High Cylinder high or LBA Device/ Head HEAD number or LBA Status DRDY 6-32 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 95: Seek

    0 0 0 0 Error IDNF ABRT Sector Count Sector Number Sector Number or LBA Cylinder Low Cylinder low or LBA Cylinder High Cylinder high or LBA Device/ Head HEAD number or LBA Status DRDY Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-33...
  • Page 96: Execute Drive Diagnostics

    Diagnostic Code Description Description No error detected Formatter Device Error Sector Buffer error ECC circuitry error Controlling microprocessor error Drive 1 failed, Drive 0 passed 80h,82h-FF Drive 0 failed, Drive 1 failed 6-34 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 97 2 2 2 2 1 1 1 1 0 0 0 0 Register Register Error Diagnostic Code Sector Count Signature Sector Number Signature Cylinder Low Signature Cylinder High Signature Device/ Head Signature Status DRDY Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-35...
  • Page 98: Initialize Drive Parameters

    4 4 4 4 3 3 3 3 2 2 2 2 1 1 1 1 0 0 0 0 Register Register Error ABRT Sector Count Sector Number Cylinder Low Cylinder High Device/Head Status 6-36 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 99: Download Microcode

    The Sector Number register will be the most significant eight bits and the Sector Count register will be the least significant eight bits. A value of zero in both the Sector Number register and the Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-37...
  • Page 100: Smart

    4 4 4 4 3 3 3 3 2 2 2 2 1 1 1 1 0 0 0 0 Register Register Error ABRT Sector Count Sector Number Cylinder Low Cylinder High Device/Head Status DRDY 6-38 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 101 3 3 3 3 2 2 2 2 1 1 1 1 0 0 0 0 Register Register Features Sector Count 00h or F1h Sector Number Cylinder Low Cylinder High Device/Head Command Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-39...
  • Page 102 During execution of the autosave routine the device shall not assert BSY nor deassert DRDY. If the device receives a command from the host while executing its autosave routine it must respond to the host within two seconds. 6-40 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 103 SMART ENABLE OPERATIONS commands shall not affect any of the attribute values. Upon receipt of this command from the host, the device sets BSY, enables SMART capabilities and functions, clears BSY and asserts INTRQ. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-41...
  • Page 104 The sequence of active attribute thresholds must appear in the same order as their corresponding attribute values (see Section 6.7.9.5). The data structure revision number shall be the same value used in the device attribute values data structure. 6-42 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 105 0xFD maximum value for normal operation 0xFE invalid for threshold value - not to be used 0xFF “always failing” threshold value to be used for code test purposes Reserved Rd only Total bytes Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-43...
  • Page 106: Table 6-21 Device Smart Data Structure

    • Bits 2-15 - Reserved for future use. The data structure checksum is the two’s compliment of the result of a simple eight- bit addition of the first 511 bytes in the data structure. 6-44 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 107 Upon receipt of this command the device sets BSY, saves any updated attribute values to non-volatile memory and compares the updated attribute values to the attribute thresholds. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-45...
  • Page 108 Upon receipt of this command from the host, the device sets BSY, writes any updated attribute values to non-volatile memory, clears BSY and asserts INTRQ. 6-46 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 109 2 2 2 2 1 1 1 1 0 0 0 0 Register Register Error IDNF ABRT Sector Count Sector Number Cylinder Low Cylinder High Device/Head Head number or LBA Command DRDY Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-47...
  • Page 110: Read Multiple Sectors

    0 0 0 0 Features Sector Count Sector count Sector Number Sector Number or LBA Cylinder Low Cylinder low or LBA Cylinder High Cylinder high or LBA Device/ Head Head Number or LBA Command 6-48 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 111: Write Multiple Sectors

    Register Error IDNF ABRT Sector Count Sector Number Sector Number or LBA Cylinder Low Cylinder low or LBA Cylinder High Cylinder high or LBA Device/ Head HEAD number or LBA Status DRDY Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-49...
  • Page 112: Set Multiple Mode

    4 4 4 4 3 3 3 3 2 2 2 2 1 1 1 1 0 0 0 0 Error ABRT Sector Count Sector Number Cylinder Low Cylinder High Device/ Head Status DRDY 6-50 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 113: Read Dma

    Error icrc IDNF ABRT Sector Count Sector Number Sector count or LBA Cylinder Low Cylinder low or LBA Cylinder High Cylinder high or LBA Device/ Head HEAD number or LBA Status DRDY Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-51...
  • Page 114: Write Dma

    2 2 2 2 1 1 1 1 0 0 0 0 Register Register Error ICRC IDNF ABRT Sector Count Sector Number Cylinder Low Cylinder High Device/ Head HEAD number or LBA Status DRDY 6-52 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 115 Power Management Commands Power Management Commands The Quantum Fireball Plus AS hard disk drive provides numerous power management options. Two important options center around a count down counter known as the automatic power down counter or APD. This counter can trigger one of two power saving events depending on which of the two commands was most recently issued.
  • Page 116: Standby Immediate

    3 3 3 3 2 2 2 2 1 1 1 1 0 0 0 0 Register Register Error ABRT Sector Count Sector Number Cylinder Low Cylinder High Device/ Head Status DRDY 6-54 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 117: Idle Immediate

    4 4 4 4 3 3 3 3 2 2 2 2 1 1 1 1 0 0 0 0 Error ABRT Sector Count Sector Number Cylinder Low Cylinder High Device/ Head Status DRDY Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-55...
  • Page 118: Standby

    3 3 3 3 2 2 2 2 1 1 1 1 0 0 0 0 Register Register Error ABRT Sector Count Sector Number Cylinder Low Cylinder High Device/ Head Status DRDY 6-56 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 119: Idle

    3 3 3 3 2 2 2 2 1 1 1 1 0 0 0 0 Register Register Error ABRT Sector Count Sector Number Cylinder Low Cylinder High Device/ Head Status DRDY Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-57...
  • Page 120: Read Buffer

    3 3 3 3 2 2 2 2 1 1 1 1 0 0 0 0 Register Register Error ABRT Sector Count Sector Number Cylinder Low Cylinder High Device/ Head Status DRDY 6-58 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 121: Check Power Mode

    3 3 3 3 2 2 2 2 1 1 1 1 0 0 0 0 Register Register Error ABRT Sector Count Status Sector Number Cylinder Low Cylinder High Device/ Head Status DRDY Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-59...
  • Page 122: Sleep

    SLEEP COMMAND CODE – E6h DESCRIPTION – The Quantum Quantum Fireball Plus AS hard disk drives considers the SLEEP Mode to be equivalent to the STANDBY mode, except that a hardware reset or a software reset is required before issuing any command to the drive.
  • Page 123: Flush Cache

    3 3 3 3 2 2 2 2 1 1 1 1 0 0 0 0 Error ABRT Sector Count Sector Number Cylinder Low Cylinder High Device/ Head Head number or LBA Status DRDY Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-61...
  • Page 124: Write Buffer

    3 3 3 3 2 2 2 2 1 1 1 1 0 0 0 0 Register Register Error ABRT Sector Count Sector Number Cylinder Low Cylinder High Device/ Head Status DRDY 6-62 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 125: Identify Drive

    Firmware Revision: The contents of this field are left-aligned and padded with spaces (20h Model Number: The contents of this field are left-aligned and padded with spaces (20h). The low-order byte appears first in a word. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-63...
  • Page 126 3 3 3 3 2 2 2 2 1 1 1 1 0 0 0 0 Register Register Error ABRT Sector Count Sector Number Cylinder Low Cylinder High Device/ Head Status DRDY 6-64 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 127: Table 6-24 Identify Drive Parameters

    20.5AT = 16 30.0AT = 16 40.0AT = 16 60.0AT = 16 Zone dependent Retired Retired Default number of logical sectors per track 7–9 5154h Retired 10–19 Serial number (20 ASCII characters) Buffer type Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-65...
  • Page 128 57–58 Current capacity in sectors (CHS mode only) 15–9 Reserved Multiple sector setting is valid 7–0 Current setting for number of sectors that can be transferred per interrupt on R/W Multiple commands 6-66 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 129 1 = supports PACKET command feature set 1 = supports Power Management feature set 1 = supports Removable Media feature set 1 = supports Security Mode feature set 1 = supports SMART feature set Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-67...
  • Page 130 1 = write cache enabled 1 = supports PACKET command feature set 1 = supports Power Management feature set 1 = supports Removable Media feature set 1 = Security Mode feature set enabled 6-68 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 131 40 conductor if both device and host support method 0-12 Reserved 15–8 Reserved Current automatic acoustic management value 1. The format of an ASCII field specifies that, within a word boundary, the low-order byte appears first. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-69...
  • Page 132 L = Manufacturing production line SSSS = Sequence of manufacture BBB = Blanks (placeholders) 3. n is a variable from zero to 16. 4. Model Numbers are byte swapped for readability. See Note 1. 6-70 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 133: Set Features Efh

    Multiword DMA Mode x 00100 Ultra DMA Mode 01000 Reserved 10000 Key: nnn = a valid mode number in binary x = a mode number in decimal for the associated transfer type Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-71...
  • Page 134: Read Defect List

    LSB of the 2-byte value (see Table 6-26). The defect list length is a fixed value for each Quantum product and can be calculated as follows: length in sectors = (((maximum number of defects) * 8 + 4) + 511)/512 At the completion of the command, the task file registers 1F2 –...
  • Page 135 Table 6-28 shows the overall format of the defect list, and Table 6-29 shows the format of the individual defect entries. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-73...
  • Page 136 Defect cylinder (LSB) Defect head Defect sector (MSB) Defect sector Defect sector Defect sector (LSB) Note: Note: Bytes 4 – 7 will be set to FFh for bad track entries. Note: Note: 6-74 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 137: Configuration

    Configuration Configuration Configuration In addition to the SET FEATURES command, the Quantum Fireball Plus AS 10.2/ 20.5/30.0/40.0/60.0 GB AT hard disk drives provide two configuration commands: • The SET CONFIGURATION command, which enables the host to change DisCache and Error Recovery parameters •...
  • Page 138 Table 6-31. However, in the READ CONFIGURATION command, bytes 0 through 31 of the data field are not KEY information, as they are in the SET CONFIGURATION command. The drive reads these bytes as QUANTUM CONFIGURATION, followed by eleven spaces. Users can read the configuration into a buffer, then alter the configuration parameter settings.
  • Page 139 Bytes 32 through 35 control the operation of DisCache. Bytes 36 through 38 control operation of the error recovery procedure. The drive does not use bytes 40 through 511, which should be set to 0. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-77...
  • Page 140 Write Reallocation is similar to the function of Automatic Read Reallocation, but is initiated by the drive when a defective block has become inaccessible for writing. An AWRE bit set to 0 indicates that the Quantum Fireball Plus AS 10.2/20.5/30.0/ 40.0/60.0 GB AT drives will not automatically reallocate bad blocks. The default setting is 1.
  • Page 141: Host Protected Mode Feature

    Drive Parameters Drive Parameters WCE – Write Cache Enable (Byte 39, Bit 2): When this bit is set to1, the Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT hard disk drives enable the Write Cache. This indicates that the drive returns GOOD status for a write command after successfully receiving the data, but before writing it to the disk.
  • Page 142 The following Table shows these Features register values. VALUE VALUE VALUE VALUE COMMAND COMMAND COMMAND COMMAND SET MAX ADDRESS SET MAX SET PASSWORD SET MAX LOCK SET MAX UNLOCK SET MAX FREEZE LOCK 6-80 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 143 Status DRDY Sector Number - Maximum native sector number or LBA bits (7:0) set on the device. Cylinder Low - Maximum cylinder number low or LBA bits (15:8) set on the device. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-81...
  • Page 144 5 5 5 5 4 4 4 4 3 3 3 3 2 2 2 2 1 1 1 1 0 0 0 0 Features Sector Count Sector Number Cylinder Low Cylinder High Device/Head Command 6-82 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 145 UNLOCK and SET MAX FREEZE LOCK are rejected. The device remains in this state until a power cycle or the acceptance of a SET MAX UNLOCK or SET MAX FREEZE LOCK command. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-83...
  • Page 146 When this counter reaches zero, then the SET MAX UNLOCK command will return command aborted until a power cycle. If the password compare matches, then the device will make a transition to the Set_Max_Unlocked state and all SET MAX commands will be accepted. 6-84 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 147 After command completion any subsequent SET MAX commands are rejected. Commands disabled by SET MAX FREEZE LOCK are: • SET MAX ADDRESS • SET MAX PASSWORD • SET MAX LOCK • SET MAX UNLOCK Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-85...
  • Page 148: Error Reporting

    ERROR REPORTING ERROR REPORTING At the start of a command’s execution, the Quantum Fireball Plus AS 10.2/20.5/ 30.0/40.0/60.0 GB AT hard disk drives check the Command Register for any conditions that would lead to an abort command error. The drive then attempts execution of the command.
  • Page 149 ATA Bus Interface and ATA Commands DRDY=Drive ready DSC=Disk seek complete not detected DF=Device fault detected ERR=Error bit in the Status Register IDNF=Requested ID not found TK0=Track zero not found error UNC=Uncorrectable data error Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-87...
  • Page 150 ATA Bus Interface and ATA Commands 6-88 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 151 ALLOCATION – The process of assigning particular areas of the disk to particular files. BLOCK – A sector or group of sectors. By See also allocation unit. default, a block of data consists of 512 bytes. Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 152 The chip or complete circuit that gives higher capacity storage but at slower translates computer data and commands access times. into a form suitable for use by the disk drive. G-2 Quantum Fireball Plus LM 10.2/15.0/20.5/30.0 GB AT...
  • Page 153 FORM FACTOR – The physical outer dimensions of a device as defined by industry standard. For example, most Quantum disk drives use a 3 1/2-inch form factor. Quantum Fireball Plus LM 10.2/15.0/20.5/30.0 GB AT...
  • Page 154 It would take three revolutions of the HARD ERROR – A repeatable error in disk disk to access a full track of data. Quantum data that persists when the disk is reread, drives have an interleave of 1:1, so a full...
  • Page 155 LOW PROFILE – Describes drives built to generate much confusion in the industry. the 3 1/2-inch form factor, which are only 1 When comparing numbers you should first inch high. verify which method was used to calculate the values. Quantum Fireball Plus LM 10.2/15.0/20.5/30.0 GB AT...
  • Page 156 Most drives use more than one and that once removed, the disk can be platter mounted on a single spindle (shaft) stored away to prevent unauthorized use. G-6 Quantum Fireball Plus LM 10.2/15.0/20.5/30.0 GB AT...
  • Page 157 SERVO DATA – Magnetic markings written on the media that guide the read/write heads to the proper position. SERVO SURFACE – A separate surface containing only positioning and disk timing information but no data. Quantum Fireball Plus LM 10.2/15.0/20.5/30.0 GB AT...
  • Page 158 After formatting, user data can be stored on the remaining disk space, known as formatted capacity. The size of a Quantum drive is expressed in formatted capacity. G-8 Quantum Fireball Plus LM 10.2/15.0/20.5/30.0 GB AT...
  • Page 159 6-28 command descriptions 6-29 Command Register 6-28 5-14 command register 6-28 ECC algorithm 5-15 Configuration 6-75 ECC Check Bytes 5-14 configuration command data field 6-77 ECC correction span 6-79 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 160 3-11 Power Requirements Power Sequencing pre-amplifier 5-10 jumper configurations pre-compensator jumper locations precompensator circuit jumper options printed circuit board programmed I/O 6-21 Pulse Detector landing zone logical cylinders 3-17 logical heads 3-17 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 161 6-27 6-27 busy bit 6-27 data request bit 6-27 drive ready bit 6-27 drive write fault bit 6-27 error bit status register bits 6-27 supply voltages syndrome values 5-14 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...
  • Page 162 Index Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT...

Table of Contents