┌─ RADIO FREQUENCY INTERFERENCE STATEMENT ─┐
└──────────────────────────────────────────┘
FCC NOTICE
This Western Digital product has been verified to comply with the
limits for a Class B computing device pursuant to subpart B Part 15 of
FCC rules. This does not guarantee that interference will not occur
in individual installations. Western Digital is not responsible for
any television, radio, or other interference caused by unauthorized
modifications of this product.
If interference problems do occur, please consult the system equipment
owner's manual for suggestions. Some of these suggestions include
relocation of the computer system away from the television or radio,
or placing the computer AC power connection on a different circuit or
outlet.
CSA NOTICE
Le présent appareil numérique n'émet pas de bruits radioélectriques
dépassant les limites applicables aux appareils numériques de la
classe B préscrites dans le Règlement sur le brouillage
radioélectrique édicté par le ministère des Communications du Canada.
This digital apparatus does not exceed the Class B limits for radio
noise for digital apparatus set out in the Radio Interference
Regulations of the Canadian Department of Communications.
Western Digital Corporation
8105 Irvine Center Drive
Irvine, California 92718
(714) 932-4900
Information furnished by Western Digital Corporation is believed to be
accurate and reliable. However, no responsibility is assumed by
Western Digital Corporation for its use; nor for any infringement of
patents or other rights of third parties which may result from its
use. No license is granted by implication or otherwise under any
patent or patent rights of Western Digital Corporation. Western
Digital Corporation reserves the right to change specifications at any
time without notice.
Copyright (c) 1992 Western Digital Corporation. All rights reserved.
Western Digital is a registered trademark and Caviar, FIT Lab,
Hyperseek, and Interarchitecture are trademarks of Western Digital
Corporation. Other marks may be mentioned herein that belong to other
companies.
9/92
▐ Caviar(TM) Series
▐ WDAC280 / WDAC2120 / WDAC1170
▐ WDAC2170 / WDAC2200 / WDAC2250 / WDAC2340
▐ 80, 120, 170, 200, 250 and 340 Megabyte
▐ 3.5-Inch Disk Drives
IF YOU NEED HELP
If you need additional information or help during installation or
normal use of this product, contact Western Digital Technical Support
at (714) 932-4900, or access the Technical Support Bulletin Board if
you have a modem.
To access the bulletin board you need a Hayes-compatible modem, 1200
or 2400 Baud rate, and the following format: 8 data bits, 1 stop bit,
and no parity. The Technical Support Bulletin Board number is (714)
753-1234. The Bulletin Board asks some preliminary questions about
your modem setup and the type of system you are calling from before
the main bulletin board menu is displayed. Refer to your modem manual
for instructions on proper modem setup.
Western Digital also offers related documentation for those users who
require more detailed information. The Technical Reference Manual for
the Caviar Drives provides complete specifications and technical
information. Contact Western Digital Literature Distribution
Department at (714) 932-4900 to obtain a copy of the Technical
Reference Manual.
■ For the Caviar AC280 (80 Mbyte capacity), order part #S0475.
■ For the Caviar AC2120 (120 Mbyte capacity) order part #S0477.
■ For the Caviar AC2170 (170 Mbyte capacity) order part #S0489.
■ For the Caviar AC2200 (200 Mbyte capacity), order part #S0837.
■ For the Caviar AC1170 (170 Mbyte), AC2250 (250 Mbyte), and AC2340
(340 Mbyte capacity), order part #S0839.
┌─ INTRODUCTION ─┐
└────────────────┘
OVERVIEW
The Western Digital Caviar(TM) intelligent disk drives are available
in 80, 120, 170 (single or dual disks), 200, 250, and 340 megabyte
capacities. These drives are suitable as new, upgrade, or replacement
drives for installation in your IBM PC/AT or compatible system. The
Caviar hard drive is an intelligent drive, which means that the hard
disk has the controller circuitry and 40-pin IDE connector attached
directly to the drive. It does not require a separate controller card
if your system provides a 40-pin IDE connector on the motherboard.
Because of its compact size (1-inch height), the Caviar drive is
easily incorporated into the newest generation of small desktop and
transportable PC/AT systems. The Caviar hard disk is a 3.5-inch drive
that can also be used in a 5.25-inch drive bay with a 5.25-inch frame
available from your dealer.
With a 1:1 interleave and an average seek time of less than 17 ms (15
ms for the Caviar AC2120; 14 ms for the Caviar AC2170 and AC2200; 13
ms for the Caviar AC1170, AC2250 and AC2340), the Caviar is designed
for high-speed, AT-compatible systems (80286, 80386SX, 80386,
80486SX, and 80486).
YOUR INTELLIGENT DRIVE IS LOW-LEVEL FORMATTED AND DEFECT FREE. You
can use your Caviar drive with Disk Operating System (DOS) version 3.0
or later. It is also compatible with other operating systems such as
OS/2, Xenix, Novell Netware, UNIX, and with applications such as
Windows and DESQVIEW.
The Caviar contains an automatic disk head parking feature that parks
the disk drive heads in a safe, non-data area when the system power is
turned off. This allows you to move the computer system without
damaging the hard disk media. For more technical information and
specifications on the Caviar intelligent disk drive, refer to the
REFERENCE section of this manual.
INSTALLATION OPTIONS
There are a number of installation options depending on your current
system components and configuration.
■ If your system has a 40-pin IDE (Intelligent Drive Electronics)
connector on the motherboard, the Caviar drive is cabled directly
to the motherboard.
■ If your system does not have a 40-pin IDE connector on the mother-
board, you must install an AT bus to IDE adapter card and connect
the hard drive to the connector on the adapter card.
■ If you are installing the Caviar drive as your second IDE hard
drive (dual installation), the hard drives must be daisy-chained
together using a daisy-chain cable. One connector attaches to the
adapter card or motherboard, and the other two attach to the
drives.
The Caviar drive is not compatible with non-intelligent drives using a
standard AT controller. For example, if you have an ST-506 or ESDI
drive, you must remove it and the AT controller card before installing
the Caviar drive.
UNPACKING AND HANDLING PRECAUTIONS
Western Digital products are designed to withstand normal handling
during unpacking and installation. Be aware of the following
precautions when unpacking and installing the Caviar drive.
■ Be careful when handling the disk drive. Do not drop the drive or
subject it to electrostatic shock. Doing so can permanently damage
the drive and void the warranty.
■ Handle the intelligent drive by the ends only, and avoid touching
the circuit board components.
■ Do not lift the intelligent drive by the faceplate or the circuit
board.
■ Once the Caviar drive is unpacked, place the drive on an antistatic
surface such as the antistatic drive bag. We recommend that you do
not unpack the drive until you are ready to install it.
■ Retain your packing material in case you need to return the drive.
BEFORE INSTALLING THE DRIVE
CAUTION: Remember to handle the drive with care. To protect the
drive components from damage and static, leave the drive in the anti-
static bag until you are ready to install it into your system.
Discharge static electricity by touching the metal chassis of your
computer before handling the drive. Remember to handle the drive only
by the sides to avoid contact with the circuit components.
Be sure that you have the following items before installing the Caviar
drive:
■ Computer system manual
■ DOS version 3.0 or later, or compatible operating system
■ Operating system manual
■ A screwdriver
■ A 40-pin host interface cable, not more than 18 inches long.
There are some other items your system may require:
■ You may need to use a power Y-adapter if you are installing the
Caviar drive as a second hard drive and you do not have two
internal power connectors. This adapter can be purchased through
your computer dealer.
■ You may need jumper shunts if you are changing the factory default
jumper settings.
■ Some systems require drive mounting rails. Check your computer
system manual to determine if drive mounting rails are required.
These rails can be purchased through your computer manufacturer or
dealer.
■ If you are installing the Caviar intelligent disk in a 5.25-inch
drive bay, you need a 5.25-inch frame. This frame mounts on the
drive and adapts it to the larger bay. Contact your dealer if you
need to purchase this frame.
■ If your system does not have a 40-pin IDE connector on the
motherboard, you need an IDE adapter card to connect the drive.
Usually, replacing an ST-506 drive requires the use of an adapter
card.
┌─ INSTALLATION ─┐
└────────────────┘
OVERVIEW
This section provides the steps necessary to prepare and install the
Caviar intelligent disk drive in your computer.
■ Step One: Determining Your Installation Configuration
■ Step Two: Setting the Drive Jumpers
■ Step Three: Mounting the Drive
STEP ONE: DETERMINING YOUR INSTALLATION CONFIGURATION
Once you have all of the items necessary, you are ready to install the
intelligent drive in your system.
You may use the Caviar drive as a new disk in the computer, or as a
replacement for an existing hard disk drive. There are two main
installation configurations:
■ The drive is cabled directly to a 40-pin connector on the
motherboard.
■ The drive is cabled to an adapter card mounted in one of the
expansion card slots in the computer.
Both configurations use a 40-pin host interface cable.
DUAL INSTALLATION
If you are using the Caviar drive as one of two IDE hard disk drives
in the computer (dual installation), you may use either installation
configuration. In dual installations, you must use a 40-pin host
interface cable with three connectors, and daisy-chain the two drives
to the motherboard or adapter card.
Dual installations require a master/slave drive configuration, where
one drive is designated as the primary drive (master) and the other is
designated as the secondary drive (slave). The Caviar drive is
compatible in dual installations with other intelligent drives that
support a master/slave configuration.
Be sure to determine your installation requirements, configuration,
and materials before proceeding.
STEP TWO: SETTING THE DRIVE JUMPERS
The Caviar drive has a jumper block (J8) located next to the 40-pin
connector on the drive. These jumpers select options on the hard
drive. The Caviar drive is factory set for single drive installation.
If you are installing the Caviar drive as the only intelligent drive
in your system, you do not need to install any jumper shunts. In dual
drive installations, jumper shunts are needed to designate which drive
is master and which is slave.
Refer to Figure 1 for an illustration of all jumper settings.
■ If you have a dual installation (two intelligent drives), you must
designate one of the drives as the master and the other as the
slave. The jumper pins on block J8 need to be configured for the
dual installation.
■ For your other drive, consult its installation guide for
master/slave configuration.
To designate the Caviar drive as the master, place a jumper shunt
on pins 5-6.
To designate the Caviar drive as the slave, place a jumper shunt on
pins 3-4.
To install a jumper shunt on the J8 jumper pins:
1. Refer to the previous descriptions and Figure 1 to determine your
configuration.
2. Carefully place the shunt over the two pins specified in Figure 1.
3. Push the shunt into place until it is flush against the base of the
jumper block.
NOTE: Designation of a drive as either master or slave is determined
by jumper configuration, not by the order in which it is daisy-
chained to the other drive.
J8
5 3 1
┌────────────────┐
│ ■ ■ ■ ■ ■ │ Single (Standard Installation)
│ ■ ■ ■ ■ ■ │
└────────────────┘
6 4 2
5 3 1
┌────────────────┐
│ ■ ■ ▐ ■ ■ │ Dual (Master)
│ ■ ■ ▐ ■ ■ │
└────────────────┘
6 4 2
5 3 1
┌────────────────┐
│ ■ ■ ■ ▐ ■ │ Dual (Slave)
│ ■ ■ ■ ▐ ■ │
└────────────────┘
6 4 2
Figure 1. Jumper Settings
┌─────┬────────────────┐
│ │ ▐ Jumper added │
│ KEY ├────────────────┤
│ │ ■ Jumper pins │
└─────┴────────────────┘
NOTE: Pins 1 & 2 are reserved; do not jumper.
STEP THREE: MOUNTING THE DRIVE
You are now ready to install the Caviar drive. Make sure your
interface cable is no longer than 18 inches. Also, if you are
connecting two drives together, you need a daisy-chain cable that has
three, 40-pin connectors. You may order this cable from your dealer.
CAUTION: You may damage the Caviar drive if the interface cable is
not connected properly. To prevent incorrect connection, use a
cable that has keyed connectors. The female connector on the
interface cable should have a plug in position 20.
CONNECTING THE INTERFACE CABLE TO THE DRIVE
1. BE SURE TO TURN OFF SYSTEM POWER.
2. Open the computer case according to the system manual
instructions.
3. Connect the 40-pin interface cable to the 40-pin connector on the
Caviar hard drive. For dual installations, daisy-chain the two
drives together by connecting them with a three-connector
interface cable. Be sure to connect pin 1 of the cable to pin 1
of the connector.
4. Route the cable toward the motherboard or card slot area. The
cable should easily route from the hard drive to the card slot
area. The cable should not block any air flow paths.
5. Insert the drive halfway into the drive bay.
NOTE: The LED activity light is socketed and can be removed if you
wish to extend the connection to an external LED.
CONNECTING THE POWER SUPPLY CABLE
1. Attach the power cable to the power connector on the hard drive.
2. If unattached, attach the other end of the power cable to the
power supply in your computer.
3. Completely insert the drive into your system drive bay.
INSERTING MOUNTING SCREWS
1. Mount the Caviar drive in the drive bay using four 6-32 screws
(3/16 inch). Be sure to use the correct length of screw. Screws
which engage the drive with more than six threads may damage the
Caviar drive.
CONNECTING THE INTERFACE CABLE TO THE HOST
1. If you have a 40-pin IDE connector on the motherboard, connect the
other end of the interface cable to the motherboard connector.
2. If your installation requires an adapter card, install it at this
time. When installation is complete, connect the end of the 40-
pin interface cable to the adapter. Make sure pin 1 of the cable
is connected to pin 1 on the adapter card.
3. After the interface cable is properly connected, close the
computer case according to the instructions provided in your
system manual and proceed to PREPARING THE CAVIAR DRIVE FOR
USE.
┌─ PREPARING THE CAVIAR DRIVE FOR USE ─┐
└──────────────────────────────────────┘
YOUR CAVIAR DRIVE HAS BEEN LOW-LEVEL FORMATTED. The hard drive is
ready to set up and is defect-free. The drive must be partitioned and
high-level formatted so it can accept files. This section of the
Installation Guide provides guidelines for preparing your drive.
Consult your operating system documentation for complete information
on preparing the drive for use with your operating system.
The computer system provides an initial setup utility, which you
access with a series of key strokes or run from a floppy diskette.
System setup procedures vary from system to system, but each setup
procedure allows you to tell the system what type of hardware you are
using. Follow the setup instructions in your computer system manual.
┌───────────────┬────────────────────────┬─────────────────────────┐
│ Drive │ Recommended Parameters │ Total Sectors Available │
╞═══════════════╪════════════════════════╪═════════════════════════╡
│ Caviar AC280 │ 980 x 10 x 17 │ 166,628 │
│ Caviar AC2120 │ 872 x 8 x 35 │ 244,308 │
│ Caviar AC1170 │ 1010 x 6 x 55 │ 333,300 │
│ Caviar AC2170 │ 1010 x 6 x 55 │ 333,568 │
│ Caviar AC2200 │ 989 x 12 x 35 │ 416,346 │
│ Caviar AC2250 │ 1010 x 9 x 55 │ 499,950 │
│ Caviar AC2340 │ 1010 x 12 x 55 │ 666,600 │
└───────────────┴────────────────────────┴─────────────────────────┘
Table 1. Recommended Drive Parameters
One step in the setup procedure asks you to specify the type of hard
drive used in your system.
There is no standard drive type for these Caviar drives. Some
suggested drive parameters are listed on the next page. Use the setup
utility to examine the available drive tables. Choose a drive type
that comes as close as possible to the recommended parameters listed
above. DO NOT EXCEED THE TOTAL NUMBER OF SECTORS AVAILABLE ON THE
DRIVE.
The Basic Input/Output System (BIOS) may request values for write
precompensation and landing zone. You may input any value. The
drive's controller electronics eliminate the need to specify these
parameters and will ignore this information.
┌─────────┬───────────┬───────┬───────────────┬──────────────────────┐
│ Drive │ Cylinders │ Heads │ Sectors/Track │ Total Sectors │
╞═════════╪═══════════╪═══════╪═══════════════╪══════════════════════╡
│80 Mbyte │ 980 │ 10 │ 17 │ 166,600 (85.3 Mbyte) │
│ │ 640 │ 10 │ 26 │ 166,400 (85.2 Mbyte) │
│ │ 841 │ 6 │ 33 │ 166,518 (85.3 Mbyte) │
│ │ 980 │ 5 │ 34 │ 166,600 (85.3 Mbyte) │
│ │ 1024 │ 9 │ 17 │ 156,672 (80.2 Mbyte) │
╞═════════╪═══════════╪═══════╪═══════════════╪══════════════════════╡
│120 Mbyte│ 872 │ 8 │ 35 │ 244,160 (125.0 Mbyte)│
│ │ 1024 │ 14 │ 17 │ 243,712 (124.8 Mbyte)│
│ │ 763 │ 10 │ 32 │ 244,160 (125.0 Mbyte)│
│ │ 842 │ 10 │ 29 │ 244,180 (125.0 Mbyte)│
╞═════════╪═══════════╪═══════╪═══════════════╪══════════════════════╡
│180 Mbyte│ 1010 │ 6 │ 55 │ 333,300 (170.6 Mbyte)│
│ │ 980 │ 10 │ 34 │ 333,200 (170.6 Mbyte)│
│ │ 952 │ 7 │ 50 │ 333,200 (170.6 Mbyte)│
│ │ 807 │ 7 │ 59 │ 333,291 (170.6 Mbyte)│
└─────────┴───────────┴───────┴───────────────┴──────────────────────┘
Table 2. Suggested Drive Parameters
To calculate the number of sectors a drive type supplies, multiply the
number of cylinders by the number of heads by the number of sectors on
each track. For example, a drive type with 980 cylinders, 10 heads,
and 17 sectors supplies 166,600 sectors (980 x 10 x 17). The table on
this page and the following page shows the number of sectors for
several different drive types. Cylinders, heads and sectors can be of
any combination as long as the total number of sectors is not
exceeded.
┌─────────┬───────────┬───────┬───────────────┬──────────────────────┐
│ Drive │ Cylinders │ Heads │ Sectors/Track │ Total Sectors │
╞═════════╪═══════════╪═══════╪═══════════════╪══════════════════════╡
│200 Mbyte│ 989 │ 12 │ 35 │ 415,380 (212.7 Mbyte)│
│ │ 987 │ 12 │ 35 │ 414,540 (212.2 Mbyte)│
│ │ 987 │ 10 │ 42 │ 414,540 (212.2 Mbyte)│
│ │ 882 │ 10 │ 47 │ 414,540 (212.2 Mbyte)│
│ │ 735 │ 12 │ 47 │ 414,540 (212.2 Mbyte)│
│ │ 658 │ 14 │ 45 │ 414,540 (212.2 Mbyte)│
╞═════════╪═══════════╪═══════╪═══════════════╪══════════════════════╡
│250 Mbyte│ 1010 │ 9 │ 55 │ 499,950 (256.0 Mbyte)│
│ │ 1020 │ 14 │ 35 │ 499,800 (255.9 Mbyte)│
│ │ 980 │ 15 │ 34 │ 499,800 (255.9 Mbyte)│
│ │ 967 │ 11 │ 47 │ 499,939 (256.0 Mbyte)│
╞═════════╪═══════════╪═══════╪═══════════════╪══════════════════════╡
│340 Mbyte│ 1010 │ 12 │ 55 │ 666,600 (341.3 Mbyte)│
│ │ 1013 │ 14 │ 47 │ 666,554 (341.3 Mbyte)│
│ │ 807 │ 14 │ 59 │ 666,582 (341.3 Mbyte)│
│ │ 952 │ 14 │ 50 │ 666,400 (341.2 Mbyte)│
└─────────┴───────────┴───────┴───────────────┴──────────────────────┘
Table 2. Suggested Drive Parameters (Continued)
PARTITIONING THE DRIVE
You may need to partition your drive(s) to overcome certain
limitations of your MS DOS version. Partitioning allows you to divide
your disk into multiple partitions, which function as separate disk
drives. Use the MS DOS FDISK.COM utility to display a series of menus
that help you partition your hard disk for MS DOS.
To partition your intelligent disk:
1. Insert your MS DOS system diskette into drive A.
2. Reboot the system by simultaneously pressing [CTRL], [ALT], and
[DEL]. Make sure the MS DOS diskette with FDISK.COM (located on
the diskette) is inserted in Drive A .
3. Type FDISK at the A: prompt.
4. Press the [Enter] key.
5. Follow the default options. For more information, refer to your
MS DOS manual.
MS DOS versions 3.3 and higher allow you to create a primary
partition, create an extended partition, change the active partition,
delete a partition, and display partition data.
Your version of DOS determines how you can partition your disk(s).
■ If you have an MS DOS version earlier than 3.3, you can only
address 32 megabytes maximum on your drive. You cannot partition
the drive without second party software. We recommend you upgrade
to MS DOS 3.3 or above.
■ If you have MS DOS version 3.3, DOS allows you to partition larger
drives into logical disk drives with a maximum of 32 megabytes per
partition.
■ If you are working with MS DOS version 3.31 or greater, you can
partition a disk drive to the maximum size of the drive. You are
not limited to 32 megabytes.
■ Some newer versions of DOS may automatically partition and format
the drive.
■ Some non-Microsoft versions of DOS may allow larger partitions
than those mentioned here.
FDISK.COM automatically assigns drive IDs to the partitions. Refer to
your operating system manual for more information on partitioning
drives.
FORMATTING THE DRIVE
Just as you need to format a floppy diskette before it can accept
files, you must high-level format the Caviar drive to prepare it to
receive files. YOU DO NOT NEED TO PERFORM A LOW-LEVEL FORMAT.
To high-level format the first logical drive (the "C" drive) to be
bootable:
1. Insert the MS DOS diskette with the FORMAT.COM utility into drive
A.
2. Type FORMAT C:/S at the A: prompt. (The "/S" parameter installs
the operating system files needed to boot from the hard disk. It
is only required for drive C.)
3. Press the [Enter] key.
If you designated other drives or partitions during the FDISK.COM
routine, you must format those drives as well. For example, type
FORMAT D: at the A: prompt and then press [Enter]. Continue the
format process until you have formatted all drives. When the
formatting process is complete, copy all DOS files from the floppy
onto your hard drive. For more information on formatting, refer to
your operating system documentation.
BOOTING THE SYSTEM
After you have properly formatted your drive(s) and copied the
operating system, you are ready to use the computer. Boot the system
from the active operating system drive, usually C. Be sure to remove
any diskettes from drive A before booting. To boot the system:
1. Simultaneously press [CTRL], [ALT], and [DEL].
2. The system should respond, and the monitor should display C>
after you have entered the current date and time.
Refer to your system documentation for more information on booting the
system.
If the system will not boot, or if you are unable to access the new
drive, refer to your operating system documentation. Verify that you
ran the system utilities correctly, specified the correct drive
tables, designated an active partition, and partitioned and formatted
the hard disk correctly. If your system still won't boot, you may
have improperly installed or connected the drive. Re-read the
installation instructions provided in this manual to be sure that you
installed and connected everything properly. Refer to the
TROUBLESHOOTING section of this manual for more information.
PREPARING THE CAVIAR DRIVE FOR A NOVELL NETWORK
If you are installing Novell, and your version of Netware has
COMPSURF, you must COMPSURF the Caviar drive. The following
parameters are recommended:
■ Format the disk No
■ Maintain the current media defect list No
■ Enter media defects No
■ Number of sequential passes Default
■ Number of I/O random test Default
■ Are parameters correct Yes
After running COMPSURF on the Caviar drive, run NETGEN. Refer to your
Novell installation manual for more information on COMPSURF and Novell
installation procedures.
USING THE DRIVE
It is extremely important to regularly back up the data on your hard
disk. Data can be damaged or lost due to a number of unanticipated
factors.
Consult your operating system documentation for back-up instructions
and procedures.
AUTOMATIC HEAD PARK FEATURE
The Caviar drive provides an automatic feature that parks the drive
heads when the system power is turned off. No separate utilities are
required to park the Caviar drive. If you move your system, be sure
to turn the system power off. The drive heads are then automatically
moved to a safe, non-data area, and the heads are locked into place.
This helps protect the disk media and the heads from accidental damage
due to vibration, moving, or shipping.
┌─ TROUBLESHOOTING ─┐
└───────────────────┘
This section lists procedures to resolve problems you may encounter
when installing the Caviar drive.
■ Reread the installation instructions provided in this manual to be
sure that you followed the instructions correctly and included all
necessary hardware.
■ Refer to your system documentation to be sure that you followed the
setup procedures correctly.
■ Make sure that you partitioned and formatted the intelligent drive
and any additional drive with the DOS FDISK.COM and FORMAT.COM
utilities. (If you are making this disk bootable, remember to
specify the /S parameter). Refer to your operating system
documentation to check these procedures.
■ If using DOS 4.0 or DOS 5.0, be certain to make the partition
active during FDISK.
■ Check the physical installation of your system. Make sure:
- The jumper selections on the drive are correct for your
installation.
- The cables are correctly connected.
- The adapter card, if installed, is properly seated, connected,
and configured.
- Power is properly connected to your system and the system is
plugged in.
- There is not an ST506 AT controller in the system. Another 16-
bit (AT) hard disk controller cannot be used in the same system
as the Caviar drive.
If you have further questions or trouble, contact your dealer or
Western Digital Technical Support at (714) 932-4900 or contact the
Western Digital Bulletin Board at (714) 753-1234 for more information.
┌─ REFERENCE ─┐
└─────────────┘
PHYSICAL SPECIFICATIONS
This section contains the physical and environmental specifications
and requirements for the Caviar intelligent disk.
NOTE: DO NOT EXCEED THE MAXIMUM SECTOR CAPACITY OF THE DRIVE WHEN
SPECIFYING THE NUMBER OF CYLINDERS, HEADS AND SECTORS PER TRACK.
┌──────────────────────┬─────────────┬───────────────┬───────────────┐
│GENERAL │AC280-80Mbyte│AC2120-120Mbyte│AC1170-170Mbyte│
╞══════════════════════╪═════════════╪═══════════════╪═══════════════╡
│Formatted Capacity │85.3 Mbytes │ 125.0 Mbytes │ 170.6 Mbytes │
│Interface │40-pin PC/AT │ 40-pin PC/AT │ 40-pin PC/AT │
│Actuator Type │Rotary Voice │ Rotary Voice │ Rotary Voice │
│ │ Coil │ Coil │ Coil │
│Number of Disks │ 2 │ 2 │ 1 │
│Data Surfaces │ 4 │ 4 │ 2 │
│Number of Heads │ 4 │ 4 │ 2 │
│Number of Cylinders │ 1082 │ 1350 │ 2233 │
│Average Track Density │ 1405 TPI │ 1712 TPI │ 2481 TPI │
│Formatted Cylinder │ 78.8 Kbytes │ 80.9 to 97.3 │ 57.3 to 98.3 │
│ Capacity │ │ Kbytes │ Kbytes │
│Bytes per Sector │ 512 │ 512 │ 512 │
│User Sectors per Drive│ 166,628 │ 244,308 │ 333,300 │
│User Sectors per Cyl │ 154 │ 158 to 190 │ 112 to 192 │
│Physical Sectors per │ 39 │ 40 to 48 │ 56 to 96 │
│ Track │ │ │ │
│Servo Type │Embedded │Embedded │Embedded │
│ │Sector Servo │Sector Servo │Sector Servo │
│Recording Method │ 2,7 RLL │ 2,7 RLL │ 1,7 RLL │
│Recording Density │ 31,591 BPI │ 33,465 BPI │ 55,200 BPI │
│Flux Density │ 21,061 FCI │ 22,310 FCI │ 41,400 FCI │
│ECC │ 56-bit │ 56-bit │Reed Solomon │
│Head Park │Automatic │Automatic │Automatic │
│ │Head Parking │Head Parking │Head Parking │
│Suggested Logical │ 980/10/17 │ 872/8/35 │ 1010/6/55 │
│ Parameters │ │ │ │
│ Cyl/Hds/SPT │ │ │ │
└──────────────────────┴─────────────┴───────────────┴───────────────┘
Table 3. General Specifications
┌──────────────────────┬──────────────────────┬──────────────────────┐
│GENERAL (Cont'd) │ AC2170-170 Mbyte │ AC2200-200 Mbyte │
╞══════════════════════╪══════════════════════╪══════════════════════╡
│Formatted Capacity │ 170.6 Mbytes │ 213.2 Mbytes │
│Interface │ 40-pin PC/AT │ 40-pin PC/AT │
│Actuator Type │ Rotary Voice Coil │ Rotary Voice Coil │
│Number of Disks │ 2 │ 2 │
│Data Surfaces │ 4 │ 4 │
│Number of Heads │ 4 │ 4 │
│Number of Cylinders │ 1584 │ 1971 │
│Average Track Density │ 2400 TPI │ 2400 TPI │
│Formatted Cylinder │ 97.3 to 113.6 Kbytes │ 97.3 to 113.6 Kbytes │
│ Capacity │ │ │
│Bytes per Sector │ 512 │ 512 │
│User Sectors per Drive│ 333,568 │ 416,346 │
│User Sectors per Cyl │ 190 to 222 │ 190 to 222 │
│Physical Sectors per │ 48 to 56 │ 48 to 56 │
│ Track │ │ │
│Servo Type │Embedded Sector Servo │Embedded Sector Servo │
│Recording Method │ 2,7 RLL │ 2,7 RLL │
│Recording Density │ 43,000 BPI │ 43,000 BPI │
│Flux Density │ 28,667 FCI │ 28,667 FCI │
│ECC │ 56-bit │ 56-bit │
│Head Park │Automatic Head Parking│Automatic Head Parking│
│Suggested Logical │ 1010/6/55 │ 989/12/35 │
│ Parameters │ │ │
│ Cyl/Hds/SPT │ │ │
└──────────────────────┴──────────────────────┴──────────────────────┘
Table 3. General Specifications (Continued)
┌──────────────────────┬──────────────────────┬──────────────────────┐
│GENERAL (Cont'd) │ AC2250-250 Mbyte │ AC2340-340 Mbyte │
╞══════════════════════╪══════════════════════╪══════════════════════╡
│Formatted Capacity │ 256.0 Mbytes │ 341.3 Mbytes │
│Interface │ 40-pin PC/AT │ 40-pin PC/AT │
│Actuator Type │ Rotary Voice Coil │ Rotary Voice Coil │
│Number of Disks │ 2 │ 2 │
│Data Surfaces │ 3 │ 4 │
│Number of Heads │ 3 │ 4 │
│Number of Cylinders │ 2233 │ 2233 │
│Average Track Density │ 2481 TPI │ 2481 TPI │
│Formatted Cylinder │ 86.0 to 147.5 Kbytes │ 114.7 to 196.6 Kbytes│
│ Capacity │ │ │
│Bytes per Sector │ 512 │ 512 │
│User Sectors per Drive│ 499,950 │ 666,600 │
│User Sectors per Cyl │ 168 to 288 │ 224 to 384 │
│Physical Sectors per │ 56 to 96 │ 56 to 96 │
│ Track │ │ │
│Servo Type │Embedded Sector Servo │Embedded Sector Servo │
│Recording Method │ 1,7 RLL │ 1,7 RLL │
│Recording Density │ 55,200 BPI │ 55,200 BPI │
│Flux Density │ 41,400 FCI │ 41,400 FCI │
│ECC │ Reed Solomon │ Reed Solomon │
│Head Park │Automatic Head Parking│Automatic Head Parking│
│Suggested Logical │ 1010/9/55 │ 1010/12/55 │
│ Parameters │ │ │
│ Cyl/Hds/SPT │ │ │
└──────────────────────┴──────────────────────┴──────────────────────┘
Table 3. General Specifications (Continued)
┌───────────┬────────────────────────────────────────────────────────┐
│FORM FACTOR│ ALL MODELS │
│3.5 Inches │ │
╞═══════════╪═════════════════════╤═══════════╤══════════════════════╡
│ Height │1.00 inches, ±.010 │ Width │4.00 inches │
│ Length │5.75 inches, ±.010 │ Weight │1.12 pounds (0.508 Kg)│
└───────────┴─────────────────────┴───────────┴──────────────────────┘
Table 3. General Specifications (Continued)
PERFORMANCE SPECIFICATIONS
┌────────────────────┬───────────────┬───────────────┬───────────────┐
│PERFORMANCE │ AC280-80Mbyte │AC2120-120Mbyte│AC1170-170Mbyte│
╞════════════════════╪═══════════════╪═══════════════╪═══════════════╡
│Average Seek Time │Sub-17 ms │Sub-15 ms │Sub-13 ms │
│Track-to-Track Seek │6 ms │6 ms │4 ms │
│Maximum Seek │28 ms │28 ms │26 ms │
│Index Pulse Period │16.67 ms │16.67 ms │18.1 ms │
│ │ (±0.1%) │ (±0.1%) │ (±0.1%) │
│Average Latency │8.34 ms │8.34 ms │9 ms │
│ │ (±0.1%) │ (±0.1%) │ (±0.1%) │
│Rotational Speed │3595 Revolu- │3605 Revolu- │3322 Revolu- │
│ │tions/min │tions/min │tions/min │
│ │(±0.1%) │(±0.1%) │(±0.1%) │
│Controller Overhead │0.3 ms average │0.3 ms average │0.3 ms average │
│Data Transfer Rate: │ │ │ │
│ Buffer to Disk │12 Mbits/s │12 - 15 Mbits/s│17 - 30 Mbits/s│
│ Buffer to Host │4.5 Mbytes/s │4.5 Mbytes/s │5.75 Mbytes/s │
│Interleave │1:1 │1:1 │1:1 │
│Buffer Size │32-Kbyte RAM │32-Kbyte RAM │32-Kbyte RAM │
│ │(8 Kbyte │(64 Kbyte │(64 Kbyte │
│ │optional) │optional) │optional) │
│Spindle Start Time │5s (typical) │5s (typical) │5s (typical) │
│Spindle Stop Time │6s (typical) │6s (typical) │6s (typical) │
│Start/Stop Cycles │10,000 cycles │10,000 cycles │20,000 cycles │
│ │min │min │min │
│Acoustics (typical) │Idle at 1 meter│Idle at 1 meter│Idle at 1 meter│
│ │40 dBA, Seeking│40 dBA, Seeking│36 dBA, Seeking│
│ │at 1 meter, │at 1 meter, │at 1 meter │
│ │42 dBA │43 dBA │42 dBA │
└────────────────────┴───────────────┴───────────────┴───────────────┘
Table 4. Performance Specifications
┌──────────────────────┬──────────────────────┬──────────────────────┐
│PERFORMANCE (Cont'd) │ AC2170-170 Mbyte │ AC2200-200 Mbyte │
╞══════════════════════╪══════════════════════╪══════════════════════╡
│Average Seek Time │Sub-14 ms │Sub-14 ms │
│Track-to-Track Seek │5 ms │5 ms │
│Maximum Seek │24 ms │24 ms │
│Index Pulse Period │16.42 ms (±0.1%) │16.42 ms (±0.1%) │
│Average Latency │8.21 ms (±0.1%) │8.21 ms (±0.1%) │
│Rotational Speed │3652 Revolutions/ │3652 Revolutions/ │
│ │min (±0.1%) │min (±0.1%) │
│Controller Overhead │0.3 ms average │0.3 ms average │
│Data Transfer Rate: │ │ │
│ Buffer to Disk │15.625 - 18.75 Mbits/s│15.625 - 18.75 Mbits/s│
│ Buffer to Host │5 Mbytes/s │5 Mbytes/s │
│Interleave │1:1 │1:1 │
│Buffer Size │32-Kbyte RAM │64-Kbyte RAM │
│Spindle Start Time │5s (typical) │5s (typical) │
│Spindle Stop Time │6s (typical) │6s (typical) │
│Start/Stop Cycles │10,000 cycles min │10,000 cycles min │
│Acoustics (typical) │Idle at 1 meter,40 dBA│Idle at 1 meter,40 dBA│
│ │Seeking at 1 meter, │Seeking at 1 meter, │
│ │43 dBA │43 dBA │
└──────────────────────┴──────────────────────┴──────────────────────┘
Table 4. Performance Specifications (Continued)
┌──────────────────────┬──────────────────────┬──────────────────────┐
│PERFORMANCE (Cont'd) │ AC2250-250 Mbyte │ AC2340-340 Mbyte │
╞══════════════════════╪══════════════════════╪══════════════════════╡
│Average Seek Time │Sub-13 ms │Sub-13 ms │
│Track-to-Track Seek │4 ms │4 ms │
│Maximum Seek │26 ms │26 ms │
│Index Pulse Period │18.1 ms (±0.1%) │18.1 ms (±0.1%) │
│Average Latency │9 ms (±0.1%) │9 ms (±0.1%) │
│Rotational Speed │3322 Revolutions/ │3322 Revolutions/ │
│ │min (±0.1%) │min (±0.1%) │
│Controller Overhead │0.3 ms average │0.3 ms average │
│Data Transfer Rate: │ │ │
│ Buffer to Disk │17 - 30 Mbits/s │17 - 30 Mbits/s │
│ Buffer to Host │5.75 Mbytes/s │5.75 Mbytes/s │
│Interleave │1:1 │1:1 │
│Buffer Size │64-Kbyte RAM (128/256 │64-Kbyte RAM (128/256 │
│ │Kbyte optional) │Kbyte optional) │
│Spindle Start Time │5s (typical) │5s (typical) │
│Spindle Stop Time │6s (typical) │6s (typical) │
│Start/Stop Cycles │20,000 cycles min │20,000 cycles min │
│Acoustics (typical) │Idle at 1 meter,36 dBA│Idle at 1 meter,36 dBA│
│ │Seeking at 1 meter, │Seeking at 1 meter, │
│ │42 dBA │42 dBA │
└──────────────────────┴──────────────────────┴──────────────────────┘
Table 4. Performance Specifications (Continued)
POWER SPECIFICATIONS
NOTE: FOR INFORMATION ON POWER SAVE FEATURES INCORPORATED IN YOUR
CAVIAR DRIVE, PLEASE REFER TO THE TECHNICAL REFERENCE MANUAL FOR THAT
DRIVE.
┌────────────────────────────────────────────────────────────────────┐
│ 12 VDC and 5 VDC Typical Current Draw │
│ ┌─────────────────────────────────────────────────┤
│ │ AC280 │
│ ├─────────────────────────────────┬───────────────┤
│ │ Input Voltage │ Power │
│ Operation │ 12 VDC ±5% 5 VDC ±5% │ │
╞══════════════════╪════════════════╤════════════════╪═══════════════╡
│Read/Write │ 0.35A │ 0.22A │ 5.30W │
│Seek (1/3 stroke) │ 0.37A │ 0.22A │ 5.60W │
│Spinup │ 1.08A │ 0.20A │ 13.96W │
│ │ 1.40A max │ 0.25A max │ │
├──────────────────┼────────────────┴────────────────┴───────────────┤
│ │ │
│ Ripple Voltage │ Maximum Frequency │
╞══════════════════╪════════════════════════╤════════════════════════╡
│12 VDC │200 mV (peak-to-peak) │0-20 MHz │
│ 5 VDC │100 mV (peak-to-peak) │0-20 MHz │
├──────────────────┴────────────────────────┴────────────────────────┤
│NOTE: Spin mode begins at zero RPM spindle speed and ends with │
│ normal speed. A complete spin-up operation typically │
│ requires five seconds. │
└────────────────────────────────────────────────────────────────────┘
Table 5. 12 VDC and 5 VDC Typical Current Draw
┌────────────────────────────────────────────────────────────────────┐
│ 12 VDC and 5 VDC Typical Current Draw │
│ ┌─────────────────────────────────────────────────┤
│ │ AC2120 │
│ ├─────────────────────────────────┬───────────────┤
│ │ Input Voltage │ Power │
│ Operation │ 12 VDC ±5% 5 VDC ±5% │ │
╞══════════════════╪════════════════╤════════════════╪═══════════════╡
│Read/Write │ 0.24A │ 0.30A │ 4.38W │
│Seek (1/3 stroke) │ 0.28A │ 0.30A │ 4.86W │
│Spinup │ 0.60A │ 0.30A │ 8.70W │
│ │ 0.80A max │ 0.35A max │ │
├──────────────────┼────────────────┴────────────────┴───────────────┤
│ │ │
│ Ripple Voltage │ Maximum Frequency │
╞══════════════════╪════════════════════════╤════════════════════════╡
│12 VDC │200 mV (peak-to-peak) │0-20 MHz │
│ 5 VDC │100 mV (peak-to-peak) │0-20 MHz │
├──────────────────┴────────────────────────┴────────────────────────┤
│NOTE: Spin mode begins at zero RPM spindle speed and ends with │
│ normal speed. A complete spin-up operation typically │
│ requires five seconds. │
└────────────────────────────────────────────────────────────────────┘
Table 5. 12 VDC and 5 VDC Typical Current Draw
┌────────────────────────────────────────────────────────────────────┐
│ 12 VDC and 5 VDC Typical Current Draw │
│ ┌─────────────────────────────────────────────────┤
│ │ AC2170 │
│ ├─────────────────────────────────┬───────────────┤
│ │ Input Voltage │ Power │
│ Operation │ 12 VDC ±5% 5 VDC ±5% │ │
╞══════════════════╪════════════════╤════════════════╪═══════════════╡
│Read/Write │ 0.31A │ 0.33A │ 5.37W │
│Seek (1/3 stroke) │ 0.30A │ 0.33A │ 5.25W │
│Spinup │ 0.88A │ 0.33A │ 12.21W │
│ │ 1.1A max │ 0.33A max │ │
├──────────────────┼────────────────┴────────────────┴───────────────┤
│ │ │
│ Ripple Voltage │ Maximum Frequency │
╞══════════════════╪════════════════════════╤════════════════════════╡
│12 VDC │200 mV (peak-to-peak) │0-20 MHz │
│ 5 VDC │100 mV (peak-to-peak) │0-20 MHz │
├──────────────────┴────────────────────────┴────────────────────────┤
│NOTE: Spin mode begins at zero RPM spindle speed and ends with │
│ normal speed. A complete spin-up operation typically │
│ requires five seconds. │
└────────────────────────────────────────────────────────────────────┘
Table 5. 12 VDC and 5 VDC Typical Current Draw (Continued)
┌────────────────────────────────────────────────────────────────────┐
│ 12 VDC and 5 VDC Typical Current Draw │
│ ┌─────────────────────────────────────────────────┤
│ │ AC2200 │
│ ├─────────────────────────────────┬───────────────┤
│ │ Input Voltage │ Power │
│ Operation │ 12 VDC ±5% 5 VDC ±5% │ │
╞══════════════════╪════════════════╤════════════════╪═══════════════╡
│Read/Write │ 0.31A │ 0.33A │ 5.37W │
│Seek (1/3 stroke) │ 0.30A │ 0.33A │ 5.25W │
│Spinup │ 0.88A │ 0.33A │ 12.21W │
│ │ 01.1A max │ 0.33A max │ │
├──────────────────┼────────────────┴────────────────┴───────────────┤
│ │ │
│ Ripple Voltage │ Maximum Frequency │
╞══════════════════╪════════════════════════╤════════════════════════╡
│12 VDC │200 mV (peak-to-peak) │0-20 MHz │
│ 5 VDC │100 mV (peak-to-peak) │0-20 MHz │
├──────────────────┴────────────────────────┴────────────────────────┤
│NOTE: Spin mode begins at zero RPM spindle speed and ends with │
│ normal speed. A complete spin-up operation typically │
│ requires five seconds. │
└────────────────────────────────────────────────────────────────────┘
Table 5. 12 VDC and 5 VDC Typical current Draw (Continued)
┌────────────────────────────────────────────────────────────────────┐
│ 12 VDC and 5 VDC Typical Current Draw │
│ ┌─────────────────────────────────────────────────┤
│ │ AC1170, AC2250, AC2340 │
│ ├─────────────────────────────────┬───────────────┤
│ │ Input Voltage │ Power │
│ Operation │ 12 VDC ±5% 5 VDC ±5% │ │
╞══════════════════╪════════════════╤════════════════╪═══════════════╡
│Read/Write │ 0.12A │ 0.31A │ 3.0W │
│Seek (1/3 stroke) │ 0.24A │ 0.30A │ 4.4W │
│Spinup │ 1.10A │ 0.11A │ 12.0W │
│ │ 1.20A max │ 0.35A max │ │
├──────────────────┼────────────────┴────────────────┴───────────────┤
│ │ │
│ Ripple Voltage │ Maximum Frequency │
╞══════════════════╪════════════════════════╤════════════════════════╡
│12 VDC │200 mV (peak-to-peak) │0-20 MHz │
│ 5 VDC │100 mV (peak-to-peak) │0-20 MHz │
└──────────────────┴────────────────────────┴────────────────────────┘
Table 5. 12 VDC and 5 VDC Typical Current Draw (Continued)
┌────────────────────────────────────────────────────────────────────┐
│POWER CONNECTORS AND CABLES │
╞═══════════════════════╤════════════════════════════════════════════╡
│Power Connector │ 4-pin MOLEX (P/N 15-24-4041 or equivalent) │
│ │ 3-pin MOLEX (P/N 30-27-0032 or equivalent).│
│ │ Factory installed option. │
│Mating Connector │ Body (AMP 1-480424-0 or equivalent) │
│ │ Pins (AMP 60619-4 or equivalent) │
│Power Cable Wire Gauge │ 18 AWG │
└───────────────────────┴────────────────────────────────────────────┘
Table 6. Power Connectors and Cables
ENVIRONMENTAL SPECIFICATIONS
NOTE: THE SYSTEM ENVIRONMENT MUST ALLOW SUFFICIENT AIR FLOW TO
MAINTAIN THE AIR TEMPERATURE ADJACENT TO THE CASTING AT OR BELOW 50°C
(122°F).
┌────────────────────────────────────────────────────────────────────┐
│ ENVIRONMENTAL │
│ ┌─────────────────┬─────────────────┬─────────────────┤
│ │ AC280-80 Mbyte │ AC2120-120 Mbyte│ AC1170-170 Mbyte│
╞══════════════╧═════════════════╧═════════════════╧═════════════════╡
│ SHOCK │
├──────────────┬─────────────────┬─────────────────┬─────────────────┤
│Operating │ 10 Gs │ 10 Gs │ 10 Gs │
├──────────────┼─────────────────┼─────────────────┼─────────────────┤
│Non-operating │ 75 Gs │ 75 Gs │ 70 Gs │
├──────────────┴─────────────────┴─────────────────┴─────────────────┤
│ VIBRATION │
├──────────────┬─────────────────┬─────────────────┬─────────────────┤
│Operating │5-20 Hz, 0.034" │5-20 Hz, 0.034" │5-21 Hz, 0.34" │
│ │(double ampli- │(double ampli- │(double ampli- │
│ │tude) 20-400 Hz, │tude) 20-400 Hz, │tude) 21-400 Hz, │
│ │0.75 Gs (Peak) │0.75 Gs (Peak) │0.75 Gs (Peak) │
├──────────────┼─────────────────┼─────────────────┼─────────────────┤
│Non-operating │5-20 Hz, 0.195" │5-20 Hz, 0.195" │5-21 Hz, 0.195" │
│ │(double ampli- │(double ampli- │(double ampli- │
│ │tude) 20-500 Hz, │tude) 20-500 Hz, │tude) 21-500 Hz, │
│ │4 Gs (Peak) │4 Gs (Peak) │4 Gs (Peak) │
├──────────────┼─────────────────┼─────────────────┼─────────────────┤
│Sweep Rate │One half octave/ │One half octave/ │One half octave/ │
│ │minute │minute │minute │
├──────────────┴─────────────────┴─────────────────┴─────────────────┤
│ TEMPERATURE │
├──────────────┬─────────────────┬─────────────────┬─────────────────│
│Operating │5°C to 50°C (41°F│5°C to 50°C (41°F│5°C to 55°C (41°F│
│ │to 122°F); 10°C/ │to 122°F); 10°C/ │to 131°F); 20°C/ │
│ │hour Thermal │hour Thermal │hour Thermal │
│ │Gradient │Gradient │Gradient │
├──────────────┼─────────────────┼─────────────────┼─────────────────┤
│Non-operating │-40°C to 60°C │-40°C to 60°C │-40°C to 60°C │
│ │(-40°F to 140°F);│(-40°F to 140°F);│(-40°F to 140°F);│
│ │20°C/hour Thermal│20°C/hour Thermal│20°C/hour Thermal│
│ │Gradient │Gradient │Gradient │
├──────────────┴─────────────────┴─────────────────┴─────────────────┤
│ RELATIVE HUMIDITY │
├──────────────┬─────────────────┬─────────────────┬─────────────────│
│Operating │8% to 80% RH │8% to 80% RH │8% to 80% RH │
│ │non-condensing │non-condensing │non-condensing │
├──────────────┼─────────────────┼─────────────────┼─────────────────┤
│Maximum Wet │26°C (79°F) │26°C (79°F) │33°C (91°F) │
│Bulb │ │ │ │
├──────────────┼─────────────────┼─────────────────┼─────────────────┤
│Non-operating │5% to 95% RH │5% to 95% RH │5% to 95% RH │
│ │non-condensing │non-condensing │non-condensing │
├──────────────┼─────────────────┼─────────────────┼─────────────────┤
│Maximum Wet │26°C (79°F) │26°C (79°F) │35°C (95°F) │
│Bulb │ │ │ │
├──────────────┴─────────────────┴─────────────────┴─────────────────┤
│ ATMOSPHERIC PRESSURE │
├──────────────┬─────────────────┬─────────────────┬─────────────────│
│Operating │-1000 to 10,000 │-1000 to 10,000 │-1000 to 10,000 │
│ │feet │feet │feet │
├──────────────┼─────────────────┼─────────────────┼─────────────────┤
│Non-operating │-1000 to 40,000 │-1000 to 40,000 │-1000 to 40,000 │
│ │feet │feet │feet │
└──────────────┴─────────────────┴─────────────────┴─────────────────┘
Table 7. Environmental Specifications
┌────────────────────────────────────────────────────────────────────┐
│ ENVIRONMENTAL (CONT'D) │
│ ┌──────────────────────────┬──────────────────────────┤
│ │ AC2170-170 Mbyte │ AC2200-200 Mbyte │
╞══════════════╧══════════════════════════╧══════════════════════════╡
│ SHOCK │
├──────────────┬──────────────────────────┬──────────────────────────┤
│Operating │ 10 Gs │ 10 Gs │
├──────────────┼──────────────────────────┼──────────────────────────┤
│Non-operating │ 75 Gs │ 75 Gs │
├──────────────┴──────────────────────────┴──────────────────────────┤
│ VIBRATION │
├──────────────┬──────────────────────────┬──────────────────────────┤
│Operating │5-20 Hz, 0.034" (double │5-20 Hz, 0.034" (double │
│ │amplitude) 20-400 Hz, │amplitude) 20-400 Hz, │
│ │0.75 Gs (Peak) │0.75 Gs (Peak) │
├──────────────┼──────────────────────────┼──────────────────────────┤
│Non-operating │5-20 Hz, 0.195" (double │5-20 Hz, 0.195" (double │
│ │amplitude) 20-500 Hz, │amplitude) 20-500 Hz, │
│ │4 Gs (Peak) │4 Gs (Peak) │
├──────────────┼──────────────────────────┼──────────────────────────┤
│Sweep Rate │One half octave/minute │One half octave/minute │
├──────────────┴──────────────────────────┴──────────────────────────┤
│ TEMPERATURE │
├──────────────┬──────────────────────────┬──────────────────────────│
│Operating │5°C to 50°C (41°F to │5°C to 50°C (41°F to │
│ │122°F); 10°C/hour Thermal │122°F); 10°C/hour Thermal │
│ │Gradient │Gradient │
├──────────────┼──────────────────────────┼──────────────────────────┤
│Non-operating │-40°C to 60°C (-40°F to │-40°C to 60°C (-40°F to │
│ │140°F); 20°C/hour Thermal │140°F); 20°C/hour Thermal │
│ │Gradient │Gradient │
├──────────────┴──────────────────────────┴──────────────────────────┤
│ RELATIVE HUMIDITY │
├──────────────┬──────────────────────────┬──────────────────────────│
│Operating │8% to 80% RH non- │8% to 80% RH non- │
│ │condensing │condensing │
├──────────────┼──────────────────────────┼──────────────────────────┤
│Maximum Wet │26°C (79°F) │26°C (79°F) │
│Bulb │ │ │
├──────────────┼──────────────────────────┼──────────────────────────┤
│Non-operating │5% to 95% RH non- │5% to 95% RH non- │
│ │condensing │condensing │
├──────────────┼──────────────────────────┼──────────────────────────┤
│Maximum Wet │26°C (79°F) │26°C (79°F) │
│Bulb │ │ │
├──────────────┴──────────────────────────┴──────────────────────────┤
│ ATMOSPHERIC PRESSURE │
├──────────────┬──────────────────────────┬──────────────────────────│
│Operating │-1000 to 10,000 feet │-1000 to 10,000 feet │
├──────────────┼──────────────────────────┼──────────────────────────┤
│Non-operating │-1000 to 40,000 feet │-1000 to 40,000 feet │
└──────────────┴──────────────────────────┴──────────────────────────┘
Table 7. Environmental Specifications (Continued)
┌────────────────────────────────────────────────────────────────────┐
│ ENVIRONMENTAL (CONT'D) │
│ ┌──────────────────────────┬──────────────────────────┤
│ │ AC2250-250 Mbyte │ AC2340-340 Mbyte │
╞══════════════╧══════════════════════════╧══════════════════════════╡
│ SHOCK │
├──────────────┬──────────────────────────┬──────────────────────────┤
│Operating │ 10 Gs │ 10 Gs │
├──────────────┼──────────────────────────┼──────────────────────────┤
│Non-operating │ 70 Gs │ 70 Gs │
├──────────────┴──────────────────────────┴──────────────────────────┤
│ VIBRATION │
├──────────────┬──────────────────────────┬──────────────────────────┤
│Operating │5-21 Hz, 0.034" (double │5-21 Hz, 0.034" (double │
│ │amplitude) 21-400 Hz, │amplitude) 21-400 Hz, │
│ │0.75 Gs (Peak) │0.75 Gs (Peak) │
├──────────────┼──────────────────────────┼──────────────────────────┤
│Non-operating │5-21 Hz, 0.195" (double │5-21 Hz, 0.195" (double │
│ │amplitude) 21-500 Hz, │amplitude) 21-500 Hz, │
│ │4 Gs (Peak) │4 Gs (Peak) │
├──────────────┼──────────────────────────┼──────────────────────────┤
│Sweep Rate │One half octave/minute │One half octave/minute │
├──────────────┴──────────────────────────┴──────────────────────────┤
│ TEMPERATURE │
├──────────────┬──────────────────────────┬──────────────────────────│
│Operating │5°C to 55°C (41°F to │5°C to 55°C (41°F to │
│ │131°F); 20°C/hour Thermal │131°F); 20°C/hour Thermal │
│ │Gradient │Gradient │
├──────────────┼──────────────────────────┼──────────────────────────┤
│Non-operating │-40°C to 60°C (-40°F to │-40°C to 60°C (-40°F to │
│ │140°F); 20°C/hour Thermal │140°F); 20°C/hour Thermal │
│ │Gradient │Gradient │
├──────────────┴──────────────────────────┴──────────────────────────┤
│ RELATIVE HUMIDITY │
├──────────────┬──────────────────────────┬──────────────────────────│
│Operating │8% to 80% RH non- │8% to 80% RH non- │
│ │condensing │condensing │
├──────────────┼──────────────────────────┼──────────────────────────┤
│Maximum Wet │33°C (91°F) │33°C (91°F) │
│Bulb │ │ │
├──────────────┼──────────────────────────┼──────────────────────────┤
│Non-operating │5% to 95% RH non- │5% to 95% RH non- │
│ │condensing │condensing │
├──────────────┼──────────────────────────┼──────────────────────────┤
│Maximum Wet │35°C (95°F) │35°C (95°F) │
│Bulb │ │ │
├──────────────┴──────────────────────────┴──────────────────────────┤
│ ATMOSPHERIC PRESSURE │
├──────────────┬──────────────────────────┬──────────────────────────│
│Operating │-1000 to 10,000 feet │-1000 to 10,000 feet │
├──────────────┼──────────────────────────┼──────────────────────────┤
│Non-operating │-1000 to 40,000 feet │-1000 to 40,000 feet │
└──────────────┴──────────────────────────┴──────────────────────────┘
Table 7. Environmental Specifications (Continued)
RELIABILITY SPECIFICATIONS
┌────────────────────────────────────────────────────────────────────┐
│ RELIABILITY │
│ ┌──────────────────────────┬──────────────────────────┤
│ │AC280,AC2120,AC2170,AC2200│ AC1170,AC2250,AC2340 │
╞══════════════╧══════════════════════════╧══════════════════════════╡
│ MEAN TIME BETWEEN FAILURES (MTBF) │
├──────────────┬──────────────────────────┬──────────────────────────┤
│ │100,000 power-on hours │250,00 power-on hours │
├──────────────┴──────────────────────────┴──────────────────────────┤
│ MEAN TIME TO REPAIR (MTTR) │
├──────────────┬──────────────────────────┬──────────────────────────┤
│ │10 Minutes typical │10 Minutes typical │
├──────────────┴──────────────────────────┴──────────────────────────┤
│ COMPONENT DESIGN LIFE │
├──────────────┬──────────────────────────┬──────────────────────────│
│ │5 Years │5 Years │
├──────────────┴──────────────────────────┴──────────────────────────┤
│ ERROR RATE │
├──────────────┬──────────────────────────┬──────────────────────────│
│ │<1 IN 10000000000000 bits │<1 in 10000000000000 bits │
│ │read unrecoverable │read unrecoverable │
├──────────────┴──────────────────────────┴──────────────────────────┤
│ WARRANTY PERIOD │
├──────────────┬──────────────────────────┬──────────────────────────│
│ │2 Years │2 Years │
├──────────────┴──────────────────────────┴──────────────────────────┤
│ Specifications subject to change without notice │
└────────────────────────────────────────────────────────────────────┘
Table 8. Reliability Specifications
AGENCY APPROVALS
The Caviar drives meet the standards of the following regulatory
agencies:
Underwriters Laboratories
UL-Standard 1950, for Safety, Electronic Data Processing Units
and Systems. File Number - E101559
Federal Communication Commission
Verified to comply with FCC Rules for Radiated and Conducted
Emission, Part 15, Subpart B, for Class B Equipment
Canadian Standards Association
CSA-Standard C22.2, No. 950 - M89 Safety of Information
Technology Equipment, Including Electrical Business Equipment.
File Number LR 68850
TUV Essen Laboratories
IEC 950 (EN 60 950) Standard for Information Technology and
Business Equipment
OBTAINING WARRANTY AND NON-WARRANTY SERVICE
Warranty and non-warranty service is available from Western Digital.
However, if this Western Digital product ever needs service, check
with your dealer. You may also contact Western Digital Technical
Support.
No product may be returned to us without first calling Technical
Support at (714) 932-4900. Technical Support will determine the
cause of the product problem. If it is decided that your Western
Digital product needs to be repaired or replaced, you will be given a
Return Material Authorization number (RMA#) and instructions on how
and where to return your product. Please include this RMA# when
returning the product. No unauthorized shipments will be accepted.
LIMITED WARRANTY
WESTERN DIGITAL CORPORATION (WDC) expressly warrants, in accordance
with the terms described below, that it will either repair or replace
this WDC peripheral Product if it proves to be defective in design,
material, or workmanship in the course of its normal use, within two
(2) years from the Buyer's date of purchase from an authorized WDC
dealer.
For warranty repair or replacement, the defective Product must be
returned within two (2) years to place of purchase or to an authorized
WDC service center, either in person or by insured mail, packaged in
the original container and accompanied by proof of purchase, model
number, and serial number. A repaired or replacement Product shall be
warranted as above for the balance of the original product Warranty
Period or ninety (90) days, whichever is longest.
The normal intended use of the Product is as computer peripheral
equipment in accordance with the functional, environmental and
operational standards published by WDC or generally accepted in the
industry. WDC shall have no obligation with respect to lost data or
data contained in any Product placed in its possession.
WDC's liability to Buyer or anyone claiming through or on behalf of
Buyer with respect to claim or loss arising out of this transaction or
alleged to have resulted from an act or omission of WDC shall in no
event exceed the purchase price of the Product with respect to which
such liability is claimed. In no event shall WDC be liable for
consequential damages, losses, or expenses arising out of this
transaction. The return of the purchase price or the repair or
replacement of the product shall be the buyer's sole remedy hereunder.
All claims hereunder must be presented to WDC within ninety (90) days
following discovery of an alleged defect in the Product.
This limited warranty is WDC's sole warranty. WDC makes no other
warranty of any kind whatsoever, expressed or implied. All implied
warranties of merchantability and/or fitness for a particular purpose
are hereby disclaimed by WDC.
In the United States, some states do not allow exclusion or limitation
of incidental or consequential damages, so the limitations above may
not apply to you. This warranty gives you specific legal rights, and
you may also have other rights which vary from state to state.
