Hard Drive: IBM: 0663-W2H 2412MB 5.25"/FH SCSI2 SE
0 6 6 3 - W 2 H IBM
NO MORE PRODUCED Native| Translation
------+-----+-----+-----
Form 5.25"/FH Cylinders 2463| | |
Capacity form/unform 2412/ 3088 MB Heads 16| | |
Seek time / track 9.8/ 1.5 ms Sector/track | | |
Controller SCSI2 SINGLE-ENDED Precompensation
Cache/Buffer 256 KB DUAL-PORTED Landing Zone
Data transfer rate 3.000 MB/S int Bytes/Sector 512
10.000 MB/S ext SYNC
Recording method PRML 8/9 operating | non-operating
-------------+--------------
Supply voltage 5/12 V Temperature *C 5 50 | -40 65
Power: sleep W Humidity % 8 90 | 5 90
standby W Altitude km -0.305 3.048| -0.305 12.192
idle W Shock g 10 | 35
seek W Rotation RPM 4316
read/write W Acoustic dBA
spin-up W ECC Bit REED SOLOMON
MTBF h 300000
Warranty Month
Lift/Lock/Park YES Certificates CSA,FCC,IEC380,IEC435,IEC9...
Layout
IBM 0663-W2H HARDWARE SPECIFICATION VER. 1.2 36G0464 JUNE 1992
+---------------------------------------------------------+ | | | | | | | Rear View | | | | | | Option Block +--------------------------------1+-----+ | | +----------1 | 50-pin SCSI Connector ||XXXXX| | | +----------+ +--------------------------------+1-----+ | | Power | +---------------------------------------------------------+
Jumpers
IBM 0663-W2H HARDWARE SPECIFICATION VER. 1.2 36G0464 JUNE 1992
Jumper Setting
==============
Option Block Layout
-------------------
+------------------------------------- ADDRESS BIT 0 (A)
| +---------------------------------- ADDRESS BIT 1 (A)
| | +------------------------------- ADDRESS BIT 2 (A)
| | | +---------------------------- N/C
| | | | +------------------------- -AUTO START
| | | | | +---------------------- SYNC A
| | | | | | +------------------- ADDRESS BIT 0 (B)
| | | | | | | +---------------- ADDRESS BIT 1 (B)
| | | | | | | | +------------- ADDRESS BIT 2 (B)
| | | | | | | | | +---------- -MTR SYNC B
| | | | | | | | | | +------- MFG OUTPUT A
| | | | | | | | | | | +---- MFG OUTPUT B
| | | | | | | | | | | | +- -RESET A
++--+--+--+--+--+--+--+--+--+--+--+--++
|o o o o o o o o o o o o 1|
|26 o o o o o o o o o o o o|
++--+--+--+--+--+--+--+--+--+--+--+--++
+--+--+ | | | +--+--+ | | | +- -RESET B
| | | | | | | +---- MFG INPUT B
| | | | | | +------- MFG INPUT A
| | | | | +---------- -SLAVE SYNC B
| | | | +---------------- GROUND
| | | +---------------------- -SLAVE SYNC A
| | +------------------------- GND
| +---------------------------- MOTOR START
+---------------------------------- GROUND
Install
IBM 0663-W2H HARDWARE SPECIFICATION VER. 1.2 36G0464 JUNE 1992
Notes On Installation
=====================
Installation direction
----------------------
horizontally vertically
+-----------------+ +--+ +--+
| | | +-----+ +-----+ |
| | | | | | | |
+-+-----------------+-+ | | | | | |
+---------------------+ | | | | | |
| | | | | |
| | | | | |
+---------------------+ | +-----+ +-----+ |
+-+-----------------+-+ +--+ +--+
| |
| |
+-----------------+
Mounting
--------
The drive can be mounted in all six positions as listed below:
- Bottom Side Down
- Top Side Down
- Right Side Down
- Left Side Down
- Rear Side Down
- Front Side Down
Four mounting holes are provided on the bottom of the drive, and two
mounting holes are provided on each side of the drive.
The torque applied to the mounting screws must be 1.0 Newton-meters 0.1 Newton-meters.
The maximum screw penetration is 7.5 millimeters.
Clearances
----------
The 0663-W2H drive contains all sway space internal to the form
factor. Therefore, no sway space clearance is required. However,
adequate clearance is required in the front and rear of the drive
to assure the airflow needed to maintain component temperatures.
Power Connector
---------------
The DC power connector is designed to mate with Molex 8981-4P4 crimp
connector, or a Molex A-70156-2000 insulated displacement connector,
or their equivalent.
+------------+ pin 1 +12 VDC
| 1 2 3 4 | pin 2 +12 Volts Return
+------------+ pin 3 + 5 Volts Return
pin 4 + 5 VDC
50-Pin SCSI Bus Connector
-------------------------
The SCSI signal connector is a 50-pin connector, MOLEX p/n 70247
meeting ANSI/SCSI specification.
SCSI Cable
----------
The 0663 disk drive uses single ended drivers and receivers which
will permit cable lengths of up to 6 meters (19.68 feet).
For a single ended cable a 50 conductor flat cable or a 25 signal
twisted cable can be used with a maximum length of 6.0 meters, and a
stup length not to exceed 0.1 meters.
This file has a maximum internal stub length of 0.072 meters on all
SCSI signals except -RST; the -RST signal has an internal stub length
of 0.096 meters. To remain compliant with ANSI, the SCSI bus cable
must not add more than 0.028 meters additional stub length to all
SCSI signals except -RST, and no more than 0.004 meters additional
stub length to -RST.
SCSI Bus Terminators
--------------------
The file has no internal SCSI bus terminators. The user is
responsible for properly terminating and powering the SCSI bus in the
using system.
DATA MATE DM500-06-0 or equivalent external terminator may be used
for termination of the file.
SCSI Bus Electrical Characteristics
-----------------------------------
The following are for the Western Digital WD33C93B SCSI Bus Interface
Controller used in this file:
DC Operating Characteristics - Ta = 0 to 70 deg. C - VCC = +5V 0.25V, GND = 0V
+------+--------------------------+---+---+-----+---------------+ |Symbol|Input Characteristics |Min|Max|Units|Conditions | +------+--------------------------+---+---+-----+---------------+ |IIL |Input leakage | |10 | uA |VIN=0.4 to VCC | +------+--------------------------+---+---+-----+---------------+ |IOL1 |SCSI output leakage | |50 | uA |VOUT=0.5 to VCC| | |(inactive) | | | | | +------+--------------------------+---+---+-----+---------------+ |VIH |Input high voltage |2.0| | V | | +------+--------------------------+---+---+-----+---------------+ |VIL |Input low voltage | |0.8| V | | +------+--------------------------+---+---+-----+---------------+ |VIHYS |Schmitt trigger input |0.2| | V | | | |hysteresis (all SCSI pins)| | | | | +------+--------------------------+---+---+-----+---------------+ |VOH |Output high voltage |2.4| | V |IO = -400 uA | +------+--------------------------+---+---+-----+---------------+ |VOL1 |SCSI output low voltage | |0.5| V |IO = 48.0 mA | +------+--------------------------+---+---+-----+---------------+
Spindle Synchronization
-----------------------
Spindle Synchronization Overview: There are four modes of spindle
synchronization. The following paragraphs give a short description of
each of the four spindle synchonization modes:
- The Slave drive, (Slave Sync mode) receives the index from the
Master on the -SLAVE SYNC line and synchronizes its index (Slave
index) to it.
- Should the file be the Master file, (Master Sync mode), it outputs
its index on the -MASTER SYNC and the -SLAVE SYNC lines. The
Master file is a normal running file except that it outputs its
file index.
- In the Master Sync Control mode, a file will output its index on
the -MASTER SYNC line and receive a signal on the -SLAVE SYNC line.
- In the non-sync mode, the file will receive the -SLAVE SYNC signal,
but it is not used by the file.
+--------------------------------------------------+
| Spindle Synchronization Control Lines |
+--------------+--------------+--------------------+
|-MASTER SYNC | -SLAVE SYNC | function mode |
+--------------+--------------+--------------------+
| released | receive | Slave sync |
+--------------+--------------+--------------------+
| drive | drive | Master Sync |
+--------------+--------------+--------------------+
| drive | receive | Master Sync Control|
+--------------+--------------+--------------------+
| released | receive | non sync. |
+--------------+--------------+--------------------+
- File Synchronization with Offset The file electronics receives the Master Index and creates the delayed Slave Index, from the file INDEX. The delay is determined by using the SCSI Mode Select command, Rigid Disk Drive Geometry Parameters. A rotational offset of 2/144 of a revolution up to 144/144 of a revolution may selected in increments of 1/144 of a revolution.
- Synchronization Time The SCSI MODE Select command is used to select the Spindle Sync mode. It could take up to 3.5 seconds to synchronize the Slave file to the Master file. While the Slave file is synchronizing, it will not be able to read and write data. Once synchronized, the file will maintain 20 usec synchronization tolerance.
- Spindle Synchronization Bus The spindle synchronization Bus consists of the two signal lines, -MASTER SYNC and -SLAVE SYNC.
- Termination Bus termination of the -MASTER SYNC and -SLAVE SYNC signals is internal to the file. These two signals each have a 2000 ohm pullup to the drives +5 volt supply. A maximum of 16 drives can have their -MASTER SYNC or -SLAVE SYNC lines daisy chained together. Violating this could damage the Master drivers on the -MASTER SYNC and/or -SLAVE SYNC lines.
It is the using systems responsibility to provide the cable to connect the synchronized files -SLAVE SYNC lines together.
- Bus Characteristics - maximum Bus length = 6 meters - 4 micro-second minimum negative active pulse - 0.8 volts = valid low input - 2.0 volts = valid high input - 0.4 volts = low output - 64 milli-amps = maximum output low level sink current - high level output set by termination resistors
The drivers used for these two signals are open collector buffers.
Features
IBM 0663-W2H HARDWARE SPECIFICATION VER. 1.2 36G0464 JUNE 1992
Features -------- - Industry-standard interface: ANSI/SCSI-2, single-ended - Thermal compensation on each data surface for improving on track positioning capability. - Integrated controller - Logical block addressing - Implied seeks - SCSI disconnect and reconnect capability - SCSI bus parity - Multiple initiator support - Closed-loop actuator servo (dedicated disk servo surface plus data reference) - Rotary voice coil motor actuator - Automatic actuator lock - Dedicated head landing zone - 1:1 interleave - Average access time: 9.8 milliseconds - (0.4/4) 8/9 rate encoding - 256K byte dual-ported data buffer - read-ahead caching - Multi-segmented data buffer - Scatter/Gather function support - Tagged and Untagged command queuing (selectable) - Command reordering supported (selectable) - Back-to-back sequential writes supported - Automatic sector reallocation (selectable) - Error logging - Variable logical block length (256-6000 bytes) - Down-loadable SCSI firmware - Buffer memory parity - Self-diagnostics on power up - Automatic retry and data correction on read errors - In-line alternate sector assignment for high performance - Reassignment of new defective sectors without the need to reformat - Probability of not recovering data: 1 in 10(15) bits read - All mounting orientations supported - No preventative maintenance required - Two field Replaceable Units (FRU's:): Disk Enclosure, Electronics and entire drive - Predictive Failure Analysis - Spindle synchronization option - Drive supplied terminator power supported - LED drive supported - Write caching supported
Control Electronics
-------------------
The 0663-W2H drive is electronically controlled by an interface
microprocessor, two servo control microprocessors, several logic
modules, digital/analog converters, and various drivers and
receivers. The control electronics performs the following major
functions:
Servo Microprocessor -------------------- - Conducts a power-up sequence and calibrates the servo - Monitors various timers for head settle, servo failure, etc. - Issues signals to control accessing servo signal gating, recali- brating, track following, or error recovery (dependent on appro- priate input conditions). - Analyzes servo signals to provide closed loop control. These in- clude position error signal and estimated velocity. - Controls the voice coil motor power amplifier driver to drive the actuator to a desired position. - Constantly monitors error conditions of the servo and takes corres- ponding action if an error occurs. - Stores/Provides/Controls the velocity profile for the servo. - Monitors the actuator position and determines the target track for a seek operation. - Controls the spindle motor power amplifier driver to maintain desired spindle speed.
Interface Microprocessor ------------------------ - Controls and interprets all interface signals between the host controller and the drive. - Controls starting, stopping, and monitoring of the spindle. - Controls read/write accessing of the disk media, including defect management and error recovery. - Performs self-checkout (diagnostics) - Monitors thresholds for Predictive Failure Analysis.
ECC Implementation: A Reed-Solomon Error Correcting Code of degree 5
with 3-way interleaving is used to cover the data fields.
Head/Disk/Spindle Assembly
--------------------------
The head and disk assembly (HDA) is assembled in a clean environment
and contains the disks and actuator assembly. Air is constantly
circulated and filtered when the drive is operational. Venting of the
HDA is accomplished via an absolute breather filter.
The HDA is shock mounted to minimize transmission of vibration
through the chassis.
The spindle is driven directly by an in-hub, brushless DC driver
motor. The motor is dynamically balanced to ensure a low level of
vibration. Dynamic braking is used to quickly stop the spindle.
Actuator
--------
The read/write heads are mounted on the actuator. The actuator is a
swing-arm assembly driven by a voice coil motor. A closed-loop
positioning servo controls the movement of the actuator. A dedicated
servo surface and head supplies feedback to the positioning servo to
keep the read/write heads centered over the desired track. During
seeks, the servo head provides track crossing information to the
servo.
The actuator assembly is balanced to allow vertical or horizontal
mounting without adjustment.
When the unit is stopped (via a SCSI command or power off condition)
the actuator automatically moves the heads to a dedicated landing
zone outside of the data area, where the actuator is locked.
Thermal Compensation
--------------------
The file periodically compensates certain all heads to account for
movements caused by thermal changes. The compensation process is
initiated automatically by the file.
The compensation of one head is called a process. A process is
started every 24 sec during the first hour after power is applied,
and every 2 minutes thereafter. Of that process period, 140 msec is
actually spent compensating a head.
Seek Time
---------
+----------------------------------+--------+
| |0661-W2H|
+----------------------------------+--------+
|Track-to-Track msec. typ. | 1.55 |
+----------------------------------+--------+
|Average msec. typ. | 9.8 |
| msec. max. | 20 |
+----------------------------------+--------+
|Latency msec. avg. | 6.95 |
+----------------------------------+--------+
SCSI Data Transfer Rate Specification
-------------------------------------
The SCSI data transfer rate is dependent on the mode, either
synchronous or asynchronous.
When the file is configured for a synchronous data transfer rate of
10 MB/sec (instantaneous), the average SCSI data transfer rate is
realized will be at least 9.2 MB/sec.
The asynchronous data transfer rate is dependent on both the
initiator and target delays to the assertion and negation of the SCSI
REQ and ACK signals. It is also dependent on SCSI cable delays. The
file will assert or negate the REQ signal within 175 nsec of the
assertion or negation of the ACK signal.
The SCSI data transfer rate specification only applies to the Data
phase for logical block data for Read, Write, Write and Verify, etc.
commands. The data rate for parameter/sense data Request Sense, Mode
Select, etc... commands is not specified.
Acoustics Levels ---------------- Upper Limit Sound Power Requirements (Bels) +---------+----------------------------------+-------------+ | |Octave Band Center Frequency (Hz) | A-weighted | +---------+----+----+----+----+----+----+----+-------------+ |Mode | 125| 250| 500| 1 k| 2 k| 4 k| 8 k|Max. Sum | +---------+----+----+----+----+----+----+----+-------------+ |Idling | 5.1| 4.0| 3.6| 3.9| 4.6| 4.6| 4.2| 5.0 | +---------+----+----+----+----+----+----+----+-------------+ |Operating| 5.1| 4.5| 3.9| 4.2| 4.9| 4.9| 4.5| 5.3 | +---------+----+----+----+----+----+----+----+-------------+ NOTE The operating mode is simulated by seeking at a rate between 12 and 15 seeks per second.
General
IBM SCSI INSTALLATION
SCSI Installation Guide Generic
Installation requirements
-------------------------
To install a drive inside your computer or in an external storage
enclosure for SCSI devices, you must have:
1 The documentation that came with your computer or storage enclosure.
2 The documentation that came with your hard drive.
3 A small, flat blade screwdriver.
4 A SCSI controller, which is either built into the system board or on an adapter inside your computer.
5 An installation kit, if it is required for your computer. Contact your place of purchase if you are not sure.
6 If you are installing this into a PS/2 computer, you will also need the up-to-date backup copy of your reference diskette and diagnostic diskette.
WARNING: Do not open the static-protective bag containing the drive
until instructed to do so. Static electricity can damage the drive.
Hardware and software considerations
Operating system
----------------
The operating system and hardware are two of the factors that
determine the number of drives a computer can support. The manuals
for your computer and operating system can help you to determine the
number and type of hard disk drives you can use.
Power supply
------------
Two factors that determine the number of internal drives that a
computer or SCSI storage enclosure can support are:
1 The available current of the power supply
2 The nominal operating current of each drive installed
Most computer power supplies have output over-current protection. If
the total allowed current is exceeded, the power supply shuts down.
The computer must be turned off and turned on again.
SCSI ID Each SCSI device connected to a SCSI adapter must be assigned
a unique SCSI identification number (ID). The ID you assign to this
device depends on the number of SCSI devices connected to the SCSI
adapter and the SCSI IDs already assigned to those devices.
Note: All IBM SCSI controllers support SCSI IDs 6 through 0. (ID 7 is
used for the SCSI controller.) Some SCSI controllers support SCSI IDs
15 through 8. If your SCSI controller supports more than seven
devices, then you can use SCSI IDs 15 through 8. If you are not sure
if your SCSI controller supports more than seven devices, refer to
the documentation that came with your SCSI controller for
information.
If you have an IBM PS/2 computer, you can view your SCSI ID settings
by accessing the system programs. From the main menu, select Set
configuration. The select Set and view SCSI configuration.
Other computers might have utility programs that enable you to view
the SCSI configuration, or you might have to physically inspect the
installed SCSI devices to see how the IDs are set. For more
information, refer to the documentation that came with your computer
or SCSI controller.
Handling precautions
--------------------
1 Turn off all attached devices first; then turn off the computer.
2 Unplug all the power cords from electrical outlets before starting installation.
3 Disconnect all power cables from your computer and attached devices before starting installation.
4 Limit your movement. Movement can cause static electricity to build up around you.
5 Handle the drive carefully and by the edges.
6 Do not touch any exposed printed circuitry.
7 Prevent other people from touching the components or the drive.
8 When you are installing the drive, touch the static-protective package containing the drive to a metal expansion-slot screw or other unpainted metal surface on the computer, for at least 2 seconds. (This drains static electricity from the package and your body.)
9 When possible, remove the drive and install it directly into the computer without setting it down. If this is not possible, place the drive, component side up, on the static-protective bag on a flat surface until the drive is installed.
10 Do not place the drive on the computer cover or on a metal table.
Installing the drive
--------------------
These instructions guide you as you install the drive inside your
computer or storage enclosure.
Step 1. Setting the jumpers and terminators
Note: Be sure you have chosen the SCSI ID before continuing. If you
did not yet choose the SCSI ID, go to "SCSI IDs" above, then
return here. Follow these steps to set the SCSI ID to match
your chosen SCSI ID.
1 Touch the static-protective bag containing the drive to a metal expansionslot cover on the computer. This drains any static electricity from the package and your body.
2 Remove the drive from the static-protective bag, holding the drive by the edges. Do not touch any exposed components on the drive.
3 Place the drive on the bag, on a flat surface.
4 When the Auto Start feature is enabled, the hard disk drive motor starts as soon as the computer is turned on. Locate the Auto Start jumper by referring to the documentation that came with your drive. If the Auto Start jumper is not in place, the hard disk is started by a command from the SCSI controller. For drives installed in IBM computers or storage enclosures ensure that this jumper is off. The hard disk drive is started in a staggered sequence. This reduces the start-up load on the power supply. For non-IBM computer, refer to the documentation that came with your computer for further information.
5 Set the SCSI ID that you selected. To remove a jumper, pull it straight off. To install a jumper, line up the two holes in the jumper with the appropriate two pins on the drive. Then push the jumper onto the pins until it is completely seated and covers both pins.
6 Store any jumpers you do not use in a safe place, in case you need to change the SCSI ID for this drive later. WARNING: If you have extra jumpers, do not store them on any of the extra pins on the connector. Storing them on a set of pins could damage the drive.
Step 2. Connecting the terminator
The location of the drive you are installing inside the computer or
storage enclosure determines whether you need to connect a terminator
or put a jumper on the Enable Active Termination pins. Read the
information in the following table to determine if you must install
the terminator. For more information about termination, refer to the
documentation that came with your computer.
Note: A SCSI chain of devices consists of multiple SCSI devices
connected by a SCSI cable to a SCSI controller.
If the hard disk drive is: Then:
The last physical device on a SCSI chain of Install the terminator
devices inside the computer.
The last physical device on a SCSI chain of Install the terminator
devices inside an external storage enclosure.
Step 3. Enabling term power
If your drive has a jumper for term power and your SCSI controller is
suppling term power, (check with the manufacturer of your controller)
then you do not need to enable the term power. The jumper should be
off. For help in locating the term power jumper, refer to the
documentation that came with your drive.
Step 4. Installing the drive
For the specific information on installing a hard disk drive, refer
to the documentation that came with your computer. You will be
required to mount the drive inside your computer, and connect signal
and power cables to the hard drive. When installed in an enclosure,
the drive is attached by cable to the external connector of a SCSI
controller. The controller can be either on a SCSI adapter or built
into the system board inside of your computer.
Note: Be sure to use the correct screws provided with your drive.
Using the wrong ones might cause damage to the drive.
Step 5. Completing the installation procedure
The installation of the drive is complete. Reinstall the cover on the
computer or storage enclosure. Store these instructions and any extra
parts in a safe place in case you change your configuration.
After installing your hard disk drive, use the information that came
with your computer to reconfigure your system. When you power on your
system, turn on all attached devices first; then turn on the
computer.
If you have any problems at this point, turn off all attached
devices; then, turn off the computer and check that:
1 The cables are installed correctly
2 No options or cables are loose
3 The SCSI ID is properly set
4 No two SCSI drives have the same SCSI ID
5 The terminators are properly installed
Turn on all attached devices; then, turn on the computer. If you
still have a problem, refer to the troubleshooting information in the
documentation that came with your computer.
Step 6. Update configuration
Whenever you add or remove an option from your computer, you must
update the configuration information. Your computer might have an
automatic configuration program, or you might have to follow a
specific procedure. For more information, refer to the documentation
that came with your computer.
Step 7. Preparing the drive for use
Having successfully installed the hard disk drive, you need to
prepare it for use. Depending on the operating system you are using,
you might need to partition then format the hard disk. Refer to the
documentation that came with your operating system for information on
how to format your new drive. To make the drive just installed your
primary drive, you might need to create a new system partition on the
drive. For information on creating a new system partition, refer to
the documentation that came with your operating system.
Troubleshooting
---------------
You might be able to solve a problem yourself. Before calling IBM,
you might want to try some or all of the following troubleshooting
procedures.
1 Remove and reattach all drive cables
2 Remove and reseat the drive
3 Place the drive in a different slot, if one is available
4 If your drive contains jumpers or switches, check that they are set as specified
5 Reread any software instructions; be sure software settings are correct
6 Inspect the drive for damage, such as bent pins
7 Check the computer manual for instructions about the installation of upgrades. Look for a section about system setup or system configuration. Follow all procedures.
8 After completing these steps, reassemble the computer and connect the power cord.
If you are still having problems and want to call IBM technical
support, have available as much of the following information as
possible:
1 Drive model or P/N and description
2 Computer manufacturer and model
3 Exact wording of error message (if any)
4 Description of the problem
5 Hardware and software configuration information for your system If possible, be at your computer. Your technical support rep might want to walk you through the problem during the call.
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