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Hard Drive: QUANTUM: PRODRIVE 170 AT 168MB 3.5"/HH IDE / AT

P R O D R I V E   1 7 0   A T    QUANTUM
NO MORE PRODUCED                                      Native|  Translation
Form                 3.5"/HH               Cylinders    1123|  968|     |
Capacity form/unform   168/      MB        Heads           7|   10|     |
Seek time   / track  15.0/ 4.0 ms          Sector/track   43|   34|     |
Controller           IDE / AT              Precompensation
Cache/Buffer            64 KB LOOK-AHEAD   Landing Zone
Data transfer rate    1.250 MB/S int       Bytes/Sector      512
                      4.000 MB/S ext
Recording method     RLL 1/7                        operating  | non-operating
Supply voltage     5/12 V       Temperature *C         4 50    |    -40 60
Power: sleep              W     Humidity     %         8 85    |      5 95
       standby            W     Altitude    km    -0.061  3.048| -0.061 12.192
       idle          11.5 W     Shock        g        10       |     60
       seek               W     Rotation   RPM      3605
       read/write         W     Acoustic   dBA        45
       spin-up            W     ECC        Bit   48
                                MTBF         h      50000
                                Warranty Month        24
Lift/Lock/Park     YES          Certificates     CSA,FCC,TUV,UL478,VDE        



  |                                             * * *       |XX
  |                                             * * *       |XX
  |                                           SS  SP  DS    |XX 40-pin
  |                                                         |XX J1
  |                                                         |XX
  |                                                         |XX
  |                                                         |.X
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |
  |                                                         |XX Power
  |                                                         |XX J3

  Jumper Pin Location on the Adapter Board
  |O         +-+             +-+          QUANTUM CORP    O |
  |          | +-------------+ |                          O |
  |          +-----------------+J1                          |
  |       +---+J3                                           |
  |       +---+                             +---+J4         |
  |                                         +---+           |
  |                                                         |
  |                                                         |
  |                                              SECONDARY  |
  |                                              INTERFACE  |
  |                                                +--+     |
  |                    +-+E3                       +--+J5   |
  |                  J2| |E4                                |
  |                    +-+                                O |
  |O                                                      O |
              +----------------+  +----------------------+



Jumper Setting

x = Jumpers set at factory

 DS  Drive Select Jumper Option
 x   CLOSED  Single drive or MASTER (Drive 0)
     OPEN    SLAVE (Drive 1)

 Note: The order in which drives are connected in a daisy chain has no

You can daisy-chain two drives on the AT-bus interface. When daisy-
chaining two drives, configure one drive as the MASTER, the other as
the SLAVE, with the Drive Select (DS) jumper pins on the drives.

SP Slave Present Jumper Option
The slave present jumper has two meaning, depending on the setting of
the DS jumper.

 1) If the ProDrive 120/170/210AT hard disk drive is configured as a
    MASTER (DS jumper installed), the SP jumper informs the drive of
    the presence of a SLAVE drive. This jumper should only be
    installed on the MASTER if the SLAVE drive does not use the Drive
    Active Slave Present signal (pin 39) to indicate that it is

 2) If the ProDrive 120/170/210AT hard disk drive is configured as a
    SLAVE (DS jumper is not installed), and the MASTER is a non-
    Quantum drive, a jumper installed on the SP jumper pins puts the
    ProDrive into a special slave mode. In this mode, the ProDrive
    does not do hardware tests in the diagnostics command to avoid
    taking too long to drive BUSY, resulting in making the operation
    with another drive as fast as possible.

Quantum ships all ProDrive 120/170/210AT hard disk drives with no
jumper installed on the SP jumper pins.

SS Drive Mode Jumper Option
The drive mode jumper options maintains compatibility with the
ProDrive 40/80 AT hard disk drives. When a jumper is installed on the
SS jumper pins, the ProDrive 120/170/210AT hard disk drive is in a
ProDrive 40/80AT compatible mode as a master or as a slave depending
on the way the DS and SP jumpers are installed. This information
applies to all drive containing firmware version 1.05J or later.

 Drive Mode Jumper Options
  |CONFIG| DS   | SP   |  SS  | Description                          |
  |   1  |OPEN  |OPEN  |OPEN  | SLAVE when the Master is a Quantum   |
  |      |      |      |      | ProDrive other than the 40/80AT.     |
  |   2  |OPEN  |OPEN  |CLOSED| SLAVE in ProDrive 40/80AT mode       |
  |   3  |OPEN  |CLOSED|OPEN  | SLAVE when the Master is a non-      |
  |      |      |      |      | Quantum drive                        |
  |   4  |OPEN  |CLOSED|CLOSED| NOT USED!                            |
  |   5  |CLOSED|OPEN  |OPEN  | MASTER drive PDIAG mode checking     |
  |      |      |      |      | DASP for slave                       |
  |   6  |CLOSED|OPEN  |CLOSED| MASTER drive in ProDrive 40/80AT     |
  |      |      |      |      | mode checking DASP for slave         |
  |   7  |CLOSED|CLOSED|OPEN  | MASTER in PDIAG mode using the SP    |
  |      |      |      |      | jumper to determine if a slave       |
  |      |      |      |      | is present                           |
  |   8  |CLOSED|CLOSED|CLOSED| MASTER in ProDrive 40/80AT mode      |
  |      |      |      |      | using the SP jumper to determine     |
  |      |      |      |      | if a slave is present                |

Note: ProDrive 40/80AT mode always means that the drive select bit in
the AT interface chip is not reset to zero on diagnostics commands
OR soft resets, and that the 120/170/210AT drives do not check for

Description of Configurations (from Table)

 1. ProDrive 120/170/210AT master in the standard Command Access
    Method (CAM) specification mode. ProDrive 120/170/210AT master
    used DASP to check for slave and uses PDIAG to determine if the
    slave passed power on, soft reset, and diagnostics. This is the
    factory default setting.

 2. ProDrive 120/170/210AT master in ProDrive 40/80AT mode. The code
    looks at DASP to determine if a slave is present. If it sees DASP,
    it assumes the other drive is a ProDrive 40/80AT and operates in
    the ProDrive 40/80AT mode.

 3. A ProDrive 120/170/210AT master with a non-Quantum slave. The
    drive knows there is a slave by the SP jumper, and it does not
    check DASP. It does check PDIAG at power on, soft reset, and
    diagnostics. On the diagnostics command, the ProDrive
    120/170/210AT skips the hardware tests, making operation with
    another drive as fast as possible.

 5. A ProDrive 120/170/210AT master with a ProDrive 40/80AT slave. The
    code knows a slave is present, by the SP jumper, and does not
    check DASP.

6. ProDrive 120/170/210AT slave in the standard CAM spec mode.

7. ProDrive 120/170/210AT slave with a ProDrive 40/80AT master.

 8. The ProDrive 120/170/210AT is a slave, however, daisy-chained to a
    non-Quantum drive. In this mode, the ProDrive 120/170/210AT does
    not do hardware tests in the diagnostic command to avoid taking
    too long to drop BUSY. This makes operation with another drive as
    fast as possible.

 J3   DC Power and pin connector assignments
      +------------+   pin 1    +12 VDC
      | 4  3  2  1 |   pin 2    +12 Volts Return (Ground)
      +------------+   pin 3    + 5 Volts Return (Ground)
                       pin 4    + 5 VDC

Note: Pins 2 and 3 are connected on the drive.

Adapter Board Jumper Options
Four jumper pins on the adapter board - labeled J2 through J5 - have
the function described below.

 J2  Enables the drive's interrupt logic to control INTRQ. This option
     provides compatibility with systems in which the BIOS does not
     read the STATUS register when the drive issues an interrupt to
     the system.

     - A jumper from the center pin J2 to E3 enables transmission of
       an interrupt every time the drives goes busy.

     - A jumper from the center pin J2 to E4 gates the interrupt from
       the drive and transmits it directly to the AT bus. This is
       factory default setting.

J3 These pins should always remain open, with no jumper installed.

 J4  These pins should generally remain open. A jumper should be
     installed on these pins only when installing the adapter board
     in a system that uses the Chips & Technologies chip set. This
     chip set runs the I/O bus faster than the standard 12 Mhz, one
     wait state.

 J5  Enables secondary interface selection on a second adapter board
     installed in a system. When a jumper is installed on these pins,
     drives connected to the adapter board respond to commands
     transmitted via the secondary address, 170H-177H. Standard BIOSs
     do not support secondary addresses. Therefore, the user must
     write a custom driver to implement a secondary interface.

 Note: A second adapter board is supported only when both adapter
       boards are Quantum boards.



Notes on Installation

The ProDrive 120/170/210AT hard disk drive can be mounted in any
orientation. UNC 6-32 screws are recommended for mounting.

     horizontally                           vertically
   +-----------------+             +--+                       +--+
   |                 |             |  +-----+           +-----+  |
   |                 |             |  |     |           |     |  |
 +-+-----------------+-+           |  |     |           |     |  |
 +---------------------+           |  |     |           |     |  |
                                   |  |     |           |     |  |
                                   |  |     |           |     |  |
 +---------------------+           |  +-----+           +-----+  |
 +-+-----------------+-+           +--+                       +--+
   |                 |
   |                 |

Note: With the exception of the faceplate and mounting brackets,
clearence between the drive and any other surface must be a minimum
of 0.10 inch.

Caution: The PCB is very close to the drive-mounting bracket. 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. To avoid
stripping the mounting-hole threads, the maximum torque applied to
the mounting screws must not exceed 8 inch-pounds.

The ProDrive 120/170/210AT hard disk drives operates without a
cooling fan, provided the ambient air temperature does not exceed
122*F (50*C). Any user-designed cabinet should provide adequate air
circulation to prevent the maximum temperature from beeing exceeded.

AT-Bus Interface Connector J1
The ProDrive 120/170/210AT hard disk drive requires one AT-bus
interface cable connector.
Connection to J1 is through a 40-pin universal header connector.
Pin 20 has been removed to prevent incorrect installation of the
mating connector. The mating connector shoud have a keying plug
installed in pin position 20.

Note: To avoid plugging the connector backwards, unkeyed mating
connections should not be used.

Recommended part numbers for the mating connector:

 40-pin connector, without strain relief  AMP P/N 1-746185-0, or

 Strain relief for 40-pin connector       AMP P/N 1-499252-1, or

 Keying Plug                              AMP P/N 86286-1, or

DC Power Connector J3
The DC power connector is a 4-pin Ranoda Electronics Connector
(06300010-04-1) mounted on the back edge of the Printed Circuit Board

Recommended part numbers for the mating connector are:

4-pin connector AMP P/N 1-480424-0 or equivalent

Loose-piece contacts AMP P/N 60619-4 or equivalent

Strip contacts AMP P/N 61117-4 or equivalent

Faceplate LED Operation
Whenever the drive initiates the execution of a command, a green LED
on the faceplate ligths, and remains lit until the execution of the
command is complete or aborted.

Air Filtration
ProDrive Series hard drives are Winchester-type drives. The heads fly
very close to the media surface, with a nominal flying height of less
than 10 microinches. 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. When the drive is use, the
rotation of the disks forces the air inside the drive through an
internal filter.

Disk Format
The ProDrive 120/170/210AT hard disk drive has 1,127 cylinder, with
five tracks per cylinder in the 120AT, and seven tracks per cylinder
in the 170AT and 210AT. 1,123 cylinders are for user data, while four
are reserved for hard disk system use - including test-equipment
data, defect maps, and diagnostics - and form boundaries between the
data zones.

Electrical Characteristics
All signals are TTL-compatible - with logic one greater than 2.0
volts and less than 5.25 volts; and logic zero, greater than 0.0
volts and less than 0.7 volts. Neither the adapter board nor the
drives require terminating resistors.

Adapter Board Installation
The adapter board is a half-size board and can be installed in any
available 16-bit slot in an IBM PC-AT or compatible. Before install-
ing the adapter board, make sure that no other hard disk drive
controller resides at the primary drive address, 1F0H-1F7H.

  - On a Western Digital WD1002-WA2 or WD1003-WA2 floppy/hard drive
    controller card:

    1. Do not install jumpers on pins E5 and E6 and install jumpers on
       Pins E4 and E5, to ensure that the controller card resides at
       the secondary address, 170H-177H, rather than the primary
       address, 1F0H-1F7H.

    2. Move the card from a 16-bit I/O slot to an 8-bit slot to
       disconnect the INTRQ output driver.

  - On a DTC (Data Technology Corporation) floppy/hard drive
    controller card:

    1. Install a jumper on pins W3.

    2. Move the card from a 16-bit I/O slot to an 8-bit slot to
       disconnect the INTRQ output driver.

Once you have disabled drive controller functions on the floppy/
hard drive controller, install the adapter board in a 16-bit slot.

Connecting the Adapter Board and the Drive
Use the ribbon cable supplied with the adapter board to connect the
drive to the board. To ensure that the cable is plugged into the
adapter board and the drive correctly, a colored wire is at one edge
of the cable. To connect the drive to the board:

  1. Note the number 1 printed on the board next to the connector.
     When inserting one end of the cable into the connector on the
     adapter board, make sure the colored wire is at the side of the
     connector labeled 1.

  2. When inserting the other end of the cable into the connector on
     the drive, make sure the colored wire is at the inside edge of
the drive connector, next to the J3 power connector.

AT-Bus Interface Characteristics
The AT-bus interface supports one or two hard drives per adapter
board, and a maximum of two adapter boards - or a maximum of four
drives. When more than one drive is present, a master/slave
relationship exists between the two drives. The host always maintains
control of the bus - no arbitration occurs.

Adapter Kit
An AT-compatible system with no 40-pin, AT-bus connector on its
motherboard requires a ProDrive AT-Bus Adapter Kit (P/N:
900-00-9002). The adapter kit includes an adapter board and a ribbon
cable, which is used to connect the board to the drive.



General Description
The Quantum ProDrive Series is a broad family of high-performance,
3 1/2-inch form factor hard drives manufactured to meet the highest
product-quality standards. These drives use nonremovable rigid disks
as their storage media, have formatted capacities that range from
42 to 210 megabytes, and are available with various interfaces.

Seek Times/Miscellaneous Times:

 Times                  | Typical   | Nominal   | Maximum    |
 msec.                  | Nominal   | Condition | Worst-Case |
                        | Condition |           | Condition  |
 Single Track Seek      |    4      |     5     |     5      |
 Average Seek           |    <15    |     15.5  |     16.5   |
 Third-Stroke Seek      |    15     |     16.5  |     17.5   |
 Full-Stroke Seek       |    27     |     30    |     33     |
 Average Rotational     |           |           |            |
 Latency                |    8.3    |     8.3   |     8.3    |
 Sequential Head Switch |    3.0    |     3.0   |     3.0    |
 Power-Up Time          |    20     |     20    |     20     |

Seek time is the time required for the actuator to seek and settle on
track. Quoted seek times include head settling time, but not command
overhead or rotational latency time.

Seek time is measured by averaging 1000 seeks of the indicated
length. Average seek time is the average time of 1000 random seeks.
When a seek error occurs, recovery for that seek may take up to two

Preventive Maintenance
The ProDrive 120/170/210AT hard disk drive requires no preventive

Track Format
In the ProDrive Series hard drives, information on the disks defines
the physical sectors. Each sector stores 512 bytes of data and
includes six bytes reserved for ECC. On the ProDrive 120AT and 170AT,
tracks in the outer zone (0-575) contain 48 sectors, while tracks in
the inner zone (576-1122) contain 36 sectors.

On the ProDrive 120AT - which has three disks and five read/write
heads - cylinders in the outer zone have 238 user sectors, while
cylinders in the inner zone have 178 sectors. On the ProDrive 170AT -
which has four disks and seven read/write heads - cylinders in the
outer zone have 334 physical sectors, while cylinders in the inner
zone have 250 sectors. The ProDrive 210AT hard drive has four disks,
seven read/write heads, and eight data zones that have between 39 and
59 sectors per track, as follows:

    Zone     |User Sectors/Cylinder:
 Innermost  7|  271
            6|  299
            5|  327
            4|  348
            3|  369
            2|  390
            1|  404
 Outermost  0|  411

Sectors are numbered sequentially, beginning with cylinder zero and
head zero, through the innermost cylinder and the head furthest from
the printed-circuit board. The ProDrive 120AT contains 234,454
sequentially-numbered sectors; and the ProDrive 210AT, 408,574
sequentially-numbered sectors.

For every cylinder, two sectors are spares used for defect

Defect Detection
At sector level, any discrepancy between recorded data and recovered
data constitutes a data error. In high-density digital recording
systems, it is necessary to use an error-detection and correction
scheme to enhance the performance and increase the reliability of the

Data errors are either soft - correctable on retries and not readily
repeatable - or hard - repeatable with high probability. Hard error
may or may not be correctable using ECC (error correction code). The
signal-to-noise ratio of the system affects the occurrence of soft
errors, which represent marginal conditions of the media, heads,
read/write circuitry, or the controller/data synchronizer circuits.
Generally, hard errors occur due to defects, pits, scratches, or thin
spots in the media. The drive can detect and skip defective sectors
on the media. Thus, the drive will not use defective sectors for

Factory-Found Defects
At the factory, disks in the ProDrive 120/170/210AT hard disk drive
are scanned for defective sectors. Factory-found defects are
deallocated prior to shipment. A Defect List, recorded in a reserved
area on the disk, contains the location of all factory-found
defective sectors on the disks.

Automatic Actuator Lock
To ensure data integrity and prevent damage during shipment, all
ProDrive Series hard disk drives feature a dedicated landing zone and
Quantum's patented AIRLOCK. AIRLOCK, locks the headstack in the
landing zone. It consists of an airvane mounted near the perimeter of
the disk stack and a locking arm that restrains the actuator arm
assembly when the disks are not rotating.

When DC power is applied to the motor and the disk stack rotates, the
rotation generates an airflow on the surface of the disk. As the flow
of air across the airvane increases with disk ratation, the locking
arm pivots away from the actuator arm, enabling the headstack to move
out of the landing zone. When DC power is removed from the motor, a
return mechanism automatically pulls the actuator into the landing
zone, where the AIRLOCK holds it in place.



Comparing the Fast ATA and Enhanced IDE Disk Drive Interfaces
Why are Fast ATA and Fast ATA-2 Important?
Faster data transfer rates are important because a computer is
only as fast as its slowest component. Today's 486, Pentium, and
PowerPC-based computers offer processor speeds many times faster
than only two years ago. Bus speeds have also increased with the
inclusion of 32-bit VL and PCI local buses, which have a maximum
data transfer rate of 132 MB/second.

Faster buses mean that data can be transferred from the storage
device to the host at greater speeds. Fast ATA and Fast ATA-2 allow
disk drives to store and access this data faster, thus enhancing the
other high-speed components in the system and removing the
bottleneck associated with older ATA/IDE drives. In short, Fast
ATA helps bring very high performance to desktop PC systems.

In addition, when compared to SCSI, Fast ATA is the least expensive
way to achieve faster disk drive data transfer rates and higher
system performance. The implementation of Fast ATA through system
BIOS provides performance without incremental hardware co sts.
Older systems can support Fast ATA using an inexpensive host

Fast ATA and Fast ATA-2 are easy to implement in either VL or PCI
local bus systems. The hardware connection can be made using a
standard 40-pin ATA ribbon cable from the drive to the host
adapter. Direct connection to the motherboard further eases
integration when provided by the motherboard supplier.

Once connected, the high data transfer capabilities of Fast ATA can
be enabled through the data transfer options found in most CMOS BIOS
setup tables. Newer versions of BIOS provide automatic configuration
for Fast ATA drives.

Fast ATA can improve efficiency by allowing more work to be
completed in less time because the computer moves data faster.
Graphic, multimedia, and audio/visual software users will benefit
most because the speed of those applications, which work with large
blocks of data, are transfer-rate dependent.

The Fast ATA and Enhanced IDE interfaces both use the local bus to
speed data transfer rates. Enhanced IDE also uses the same PIO modes
as Fast ATA, although a data transfer rate equal to the PIO mode 4
rate has not been announced for Enhanced IDE. The major differences
between Fast ATA and Enhanced IDE are that the latter includes
three distinct features in addition to fast data transfer rates.
The additional features of Enhanced IDE are as follows:

High-capacity addressing of ATA hard drives over 528 MB -
a BIOS and device driver function.

Dual ATA host adapters supporting up to four hard disk drives per
computer system - a function of BIOS, operating system, and host
adapter, not the drive.

Support for non-hard disk drive peripherals such as CD-ROMs -
a function of BIOS and the operating system, not the drive

Each of these features supports improved functionality at a system
level, a positive development for the industry and end users.
However, support for all three features requires an extremely high
degree of integration and revisions to operating systems and hard-
ware, in addition to BIOS changes. Specific support is required not
only for the storage peripherals but also for host adapters, core
logic, the system bus, BIOS, and operating systems - virtually every
major block of PC architecture.

There is no central industry-supported standard that controls the
features of Enhanced IDE. With no standard, some products sold as
"Enhanced" may provide only one of the three features of Enhanced
IDE. For example, fast data transfer rate support is be coming
standard on mid-range and high-end local bus systems. This single
feature could satisfy the users immediate requirements without the
need for the other features of Enhanced IDE.

In the future, if the same system is upgraded to add the remaining
features of Enhanced IDE, users may be forced to purchase an Enhanced
IDE package that contains a feature already installed. This could
result in unnecessary costs, integration conflicts, and in-
compatibility with original factory implementations.

Fast ATA, on the other hand, represents only the fast data transfer
rates for ATA hard drives (support for PIO mode 3 or 4 and DMA mode
1 or 2). Fast ATA and Fast ATA-2 data transfer rates can be easily
achieved when the system BIOS and hard drive suppo rt the PIO and
DMA protocols.

BIOS that supports Fast ATA does not necessarily support high-
capacity addressing, dual host adapters or non-hard drive
peripherals. But these features are being introduced independently
by system manufacturers in order to compete in the PC marketplace.

All of Quantum's disk drives designed for PCs now support Fast ATA,
and new products with Fast ATA support will be introduced in early
1995. The drives are also fully backward compatible with older ATA/
IDE (non-Fast ATA) BIOS.

The Quantum drives support both the Extended CHS (Cylinder Head
Sector) and LBA (Logical Block Address) addressing methods in
overcoming the 528 MB DOS capacity barrier. Quantum drives can also
be used with dual host adapters.

Finally, there are no incompatibilities with Quantum hard drives
that would prevent computer systems from supporting non-hard drive

Quantum drives that support Fast ATA include the following families:

Quantum ProDrive LPS 170/210/340/420
Quantum ProDrive LPS 270/540
Quantum Maverick 270/540
Quantum Lightning 365/540/730
Quantum Daytona 127/170/256/341/514

Fast ATA and Fast ATA-2 are important technologies that can take
advantage of the performance provided by the latest high-speed
microprocessors and bus architectures. The high-speed interfaces
are based on industry standard specifications and are the least
expensive way to achieve faster disk drive data transfer rates.
Fast ATA is not a group of features that requires an extremely
high level of integration, and only represents the fast data transfer
rates for ATA hard drives (PIO mode 3 or 4 and DMA mode 1 or 2).

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