Hard Drive: IBM: 0662-A10 1052MB 3.5"/SL ATA2 FAST
0 6 6 2 - A 1 0 IBM
NO MORE PRODUCED Native| Translation
------+-----+-----+-----
Form 3.5"/SLIMLINE Cylinders 3016| 2038| |
Capacity form/unform 1052/ MB Heads 6| 16| |
Seek time / track 9.0/ ms Sector/track | 63| |
Controller IDE / ATA2 FAST/ENHA Precompensation
Cache/Buffer 512 KB MULTI-SEGMEN Landing Zone
Data transfer rate 5.000 MB/S int Bytes/Sector 512
13.000 MB/S ext
Recording method PRML operating | non-operating
-------------+--------------
Supply voltage 5/12 V Temperature *C 5 55 | -40 65
Power: sleep W Humidity % 5 90 | 5 95
standby W Altitude km -0.304 3.048| -0.304 12.912
idle 6.8 W Shock g 10 | 60
seek W Rotation RPM 5400
read/write 11.0 W Acoustic dBA 34
spin-up W ECC Bit
MTBF h 500000
Warranty Month 60
Lift/Lock/Park YES Certificates
Layout
IBM 0662-A10 USER'S MANUAL
++ +--+ +--+ 1+++++++++10++ || xx xx xx xx ++--++++--++ +LED+ +++++++++++ || ||---xx-xx-xx-xx---+----++----+-----+---+----------------|| |+--+ +--+| | | | | | | +-----------------------------------+ | | +-------------+ HDA | +---------------------------------------------------------+
1 = MASTER
2 = SLAVE
3 = DUPLEX
4 = THROTTLE
5 = IORDY
6 = INDEX (NOT USED)
Jumpers
IBM 0662-A10 USER'S MANUAL
Jumper Setting
==============
Option Block
------------
MASTER This is the default setting and sets the drive to be a
master. The CSEL line overrides this jumper.
SLAVE This jumper sets the drive to be a slave. The handshaking
protocol for -DASP and -PDIAG apply.
DUPLEX This jumper sets the drive to appear to the system a
master and a slave. There is only one setting for master
or duplex.
THROTTLE Customer specification
IORDY This jumper setting disables the IORDY function. Spare
not used.
INDEX This is a test point and not used as a jumper setting.
Install
IBM 0662-A10 USER'S MANUAL
Notes On Installation
=====================
Installation direction
----------------------
horizontally vertically
+-----------------+ +--+ +--+
| | | +-----+ +-----+ |
| | | | | | | |
+-+-----------------+-+ | | | | | |
+---------------------+ | | | | | |
| | | | | |
| | | | | |
+---------------------+ | +-----+ +-----+ |
+-+-----------------+-+ +--+ +--+
| |
| |
+-----------------+
Mounting
--------
The drive can be mounted with any surface facing down.
The drive has both side and bottom mounting holes.
The maximum allowable penetration of the mounting screws is 3.8 mm.
The torque applied to the mounting screws must be 0.45 Newton meters +/-0.1 Newton meters
WARNING: Except for the isolated mounting holes the disk enclosure
is not at ground potential. Therefore any user mounting scheme must
not result in the disk enclosure being shorted to ground.
ELECTRICAL CONNECTOR LOCATIONS
------------------------------
ATA/IDE Signal Connector
The pin configuration of the ATA connector is as follows:
+-------------------------------------------------------------+
| 01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 |
| 02 04 06 08 10 12 14 16 18 22 24 26 28 30 32 34 36 38 40 |
+-------------------------------------------------------------+
20 = Keypin
ATA 40 Pin Connector
This connector is designed to mate with:
Connector 40 pin 3M 3417-7000 or equivalent
Strain relief 3M 3448-2040 or equivalent
Flat cable 3M 3565-40 (stranded 28AWG) or equivalent
Flat cable 3M 3517-40 (shielded) (stranded 28AWG) or
equivalent
LED DRIVER
----------
The card provides a 2 pin male connector for external LED. The line
is driven low whenever the drive is executing a valid ATA command. It
is intended that the system will provide a front mounted LED with a
flying lead to connect to the drive. (0.1 inch pitch).
One pin is connected to +5 volts via a series 180 ohm resistor.
The second pin is connected to the LED driver.
Packaging
---------
The drive must be protected against Electro-Static Discharge
especially when being handled. The safest way to avoid damage is to
put the in an anti static bag before ESD wrist straps are removed.
Drives should only be shipped in approved containers, severe damage
can be caused to the drive if the packaging does not adequately
protect against the shock levels induced when a box is dropped.
Consult your IBM marketing representative if you do not have an
approved shipping container.
HOST DRIVE TO CONNECTION
------------------------
In an ATA system the maximum number of drives that can be attached to
a 40 way ATA cable is "Two".
The 40 way cable is "daisy chained" to the two drives. One drive is
designated the Master and the other the Slave (Drive 0 and Drive 1).
+------+
| HOST |
+--+---+
| 40 way ATA cable
+--------+---------------------+
+---+---+ +----+--+
|DRIVE 0|MASTER |DRIVE 1| SLAVE
+-------+ +-------+
Attachment of Drives to a System
The drive can be set to Master or Slave in two ways:
- Jumper Setting
- Using the CSEL
In PIO mode the upper capacity limit, set by registers, may be less
that total capacity for the drive. To allow the full capacity of the
drive to be used by the customer the Duplex jumper sets the drive to
appear as a master and slave. "Duplex Mode of Operation".
CSEL (Cable Select) This signal has a 10K ohm pull-up resistor on the
drive. The drive is configured as either Drive 0 or Drive 1 depending
upon the value of CSEL.
- If CSEL is grounded then the drive address is 0.
- If CSEL is open then drive address is 1.
Special cabling can be used by the system manufacturer to selectively
ground CSEL (eg, CSEL of Drive 0 is connected to the SCEL conductor
in the cable is grounded, thus allowing the drive to recognize itself
as Drive 0. CSEL Drive 1 is not connected to CSEL because the
conductor is removed, thus the drive can recognize itself as Drive 1.
Drives that do not support this function cannot be mixed.
+---------------------+---------------+
GND | CSEL conductor | OPEN
+--+---+ +---+---+ +---+---+
| HOST | |Drive 0| |Drive 1|
+------+ +-------+ +-------+
+---------------------+---------------+
GND | CSEL conductor | OPEN
+--+---+ +---+---+ +---+---+
| HOST | |Drive 1| |Drive 0|
+------+ +-------+ +-------+
Cable Selection of Drive 0 and 1
CSEL has priority over the Drive's jumper settings for Master and
Slave. Duplex has priority over CSEL.
ELECTRICAL INTERFACE SPECIFICATIONS
-----------------------------------
Power Connector
The DC power connector used in 0662 is a Molex 8981-4V6. It is
designed to mate with a Molex 8981-4P4 crimp connector, or a Molex
A-70156-2000 insulator displacement connector, or their equivalent.
Pin assignments are shown below.
/------------\ pin 4 +12 VDC
| 1 2 3 4 | pin 3 +12 Volts Return
+------------+ pin 2 + 5 Volts Return
pin 1 + 5 VDC
MECHANICAL SPECIFICATIONS
-------------------------
This section details the mechanical specifications of the IBM OEM
0662 disk drive. Weight Approximately 1.0 pounds (0.46 kilograms)
Dimensions U.S. S.I Metric
Height 1.00 in 25.4 mm
Width 4.00 in 101.6 mm
Depth 5.75 in 146.0 mm
Clearances
----------
A minimum of 2 mm clearance should be given to the bottom surface
except for a 10 mm diameter area around the bottom mounting holes.
For proper cooling it is suggested that a clearance of 6 mm be
provided under the drive and on top of the file.
There should be 7 mm of clearance between drives that are mounted
with their top sides facing each other.
Note: The top of the drive will not exceed the height dimension by
more than 2 millimeters during a nonoperating shock.
Vibration and Shock
===================
Operating/Nonoperating Vibration
--------------------------------
Due to the complexity of this subject we recommend that users contact
the Distributor to discuss how to perform the required measurements
if they believe this to be an area which requires evaluation.
Operating Shock
---------------
The drive will continue to operate, at the stated "Performance", when
subjected to a 5 G half sine wave shock pulse of 11 milliseconds
duration. No permanent damage will occur to the drive when subjected
to a 10 G half sine wave shock pulse of 11 milleseconds duration.
The shock pulses are applied in either direction in each of three
mutually perpendicular axis, one axis at a time.
Nonoperating Shock
------------------
No damage will occur if the unpackaged drive is not subjected to a
square wave shock greater than a "faired" value of 35 Gs applied to
all three axis for a period of 20 milliseconds, one direction at a
time.
Additionally, no damage will occur if the unpackaged drive is not
subjected to an 11 millesecond half sine wave shock greater than 60
Gs applied to all three axis, one direction at a time.
Features
IBM 0662-A10 USER'S MANUAL
General
-------
The 0662 Model A10 provides 1.05 GB in a 1" high, 3.5" form factor.
Using industry leading areal density made possible by our exclusive
magneto-resistive head and second generation channel chip 1.05 GB is
packed on just three disks.
APPLICATIONS
------------
Technical/commercial workstations
Network servers
Mass storage arrays
High end personal computers
FEATURES
--------
- 1.05 GB formatted capacity (512 bytes/sector).
- Industry standard ATA/IDE interface.
- Data transfer rate (max) 13 MB/sec.
- 5.0/6.0 MB/sec media data rate.
- Rotational speed 5400 RPM.
- 2 recording zones.
- Average seek time 9 ms (read)
- Magneto resistive heads.
- PRDF data channel (partial response maximum likelihood (PRML) with digital filter).
- 512 KB multi-segmented data buffer.
- Industry standard mounting
- Low command overhead.
- Write cache support.
- 3 disk design
- Idle power 6.8 watts.
- Read ahead caching.
- 1 inch high form factor.
BENEFITS
--------
- Popular capacity point.
- High interface data rate.
- Exceptionally high data rate across entire disk surface.
- Fast access to data
- Industry leading areal density 354/319 Mb/sq in.
- Robust data channel for improved data integrity.
- Fast data retrieval in multi-tasking environments
- Easy installation.
- Improved data throughput.
- Assured reliability
MODES OF OPERATION
------------------
Translate Mode The cylinder, head and sector geometry of the drive as
presented to the host may differ from the actual physical geometry.
The recommended translate parameters are defined in the "Translate
Table". Translate mode is only valid in CHS mode. For some systems or
ATA adapter cards the full capacity of the drive cannot be accessed
unless in Duplex mode.
Note: Prior to the introduction of the LBA mode of addressing, the
higher number of cylinders that the drive could address was fixed by
the two low order bits in the cylinder high register and the 8 bit
cylinder low register (10 bits total). This limited the maximum
number of cylinders of 1024. Rev 3.x allowed for the full 8 bits of
the cylinder high register to be used.
In Duplex mode the driver appears to the system as two identical
drives configured as Master and Slave. See the translate table
"Translate Table for definition. This drive uses variable sector
density which is transparent to the interface in "CHS" or "LBA" mode.
Translate Table
---------------
The following translate table is recommended for single "CHS" mode or
Duplex Master and Slave.
"CHS" Host to Drive Translate Table
----------+---------+---------+---------+
Parameter | Single | Duplex | Duplex |
| | Master | Slave |
----------+---------+---------+---------+
Cylinders | 0-2037 | 0-1017 | 0-1017 |
----------+---------+---------+---------+
Heads | 0-15 | 0-15 | 0-15 |
----------+---------+---------+---------+
Sectors | 1-63 | 1-63 | 1-63 |
----------+---------+---------+---------+
CHS and LBA A drive can operate in either of two addressing modes,
CHS or LBA, on a command by command basis. If the host selects LBA
mode in the Drive/Head register, Sector Number, Cylinder Low,
Cylinder High and HS3-HS0 of the Drive/Head Register contains the
zero based-LBA.
In LBA mode, the sectors on the drive are assumed to be linearly
mapped with an Initial definition of: LBA 0 = Cylinder 0/head
0/sector 1.
In the LBA mode cylinder, head and sector boundaries are transparent.
The absolute capacity of the drive can be addressed since the "LBA"
address can be mapped directly to the physical characteristics of the
drive.
"LBA" Host to Drive Addressing
------------------------------
Parameter Single Duplex Duplex
Master Slave
Logical Block Address 2,054,304 1,026,144 1,026,144
DUPLEX MODE OF OPERATION
------------------------
In PIO translate mode of operation the cylinder, head and sector
register in some systems, limit the maximum capacity that the host
can address. In LBA mode or extended cylinder this upper capacity
limit is substantially increased.
To maintain downward compatibility this drive support "Duplex" mode.
The host sees this mode as two drives, master and slave, even though
physically there is only one drive attached.
Note: If the drive is set to Duplex mode the other port on the 40 way
cable cannot be used.
Since one drive is emulating a master and a slave some unique
conditions apply.
The translate table is fixed and cannot be changed.
Set features command applies to both master and slave. The
conventional translate criteria still apply and the Drive bit must be
set to address each pseudo drive independently.
The -DASP and -PDIAG signal lines during Reset and Diagnostics
commands emulate the master slave handshaking.
There are two Status and Error registers that can be interrogated
independently in the Duplex mode. All other registers contain only
the information valid for the last command. Since the Duplex mode
simulates two real drives some limit to conventional protocol apply.
- Features apply to both drives except where a command requires the Features Register to be written.
- Buffer contents will be updated by a command for either drive.
- If each drive is required to operate in a different mode, then the features command must be executed whenever a different drive is selected.
Data integrity is not maintained when switching between Duplex and
single mode operation.
+------+
| HOST |
+--+---+
| 40 way ATA cable
+------+-------------------+
+---+----+ |
|Drive in| |
|duplex | Cannot be use
+--------+
Duplex Mode Attachment
PIO AND DMA MODES
-----------------
"PIO" stands for Programmed Input/Output and
"DMA" stands for Direct Memo Access. The most common method to
transfer data between the host and drive or drive and host is by PIO
transfers. This is normally done on a sector basis unless the multi
sector command is used.
DMA transfers use the DMARQ and DMACK to control the flow of data on
the bus.
RIPPLE
------
During drive start up and seeking, 12 volt ripple is generated by the
drive (referred to as dynamic loading). If several drives have their
power daisy chained together then the power supply ripple plus other
drives' dynamic loading must remain within the regulation tolerance
window of plus or minus 5%. A common drive supply with separate power
leads to each drive is a more desirable method of power distribution.
The file's mounting holes are electrically isolated from the file's
disk enclosure. The disk enclosure is not a ground potential;
therefore, any user mounting scheme must not result in the disk
enclosure being shorted to ground.
Note: Hot plugging is NOT supported.
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