Updated June 18, 1996
________________________________________________________________________
Model 0663-E12 & 0663-E15 IBM Hard Disk Drive
________________________________________________________________________
http:\\www.storage.ibm.com\storage\techsup\hddtech\hddtech.htm
FEATURES
========
- 1,206 MB formatted capacity (512 & 520 bytes/sector) (model E15)
- 1,043 MB formatted capacity (512 & 520 bytes/sector) (model E12)
- Industry-standard interface: ANSI/SCSI-2
- Thermal Compensation
- Integrated controller
- Logical block addressing
- Implied seeks
- SCSI disconnect and reconnect capability
- SCSI bus parity
- Closed loop actuator servo (dedicated disk servo surface plus data
reference)
- Multiple initiator support
- 1:1 interleave
- (0,4/4) 8/9 rate encoding
- Media data transfer rate: 3 MB/S
- SCSI data transfer rate: up to 10 MB/S (synchronous)
- 256K byte dual-ported data buffer
- Read-ahead caching
- Write caching (selectable)
- Multi-segmented data buffer
- Scatter/Gather function support
- Tagged and Untagged command queuing (selectable)
- Command recording supported (selectable)
- Back-to-back sequential writes supported
- Automatic bad sector reallocation (selectable)
- Error logging
- Variable logical block lengths (256 - 6000 bytes with exceptions).
Shipped format is 512 bytes/sector
- Automatic retry and data correction on read errors
- Sector reassignment without reformat
- Predictive Failure Analysis
- Spindle Synchronization
- Drive supplied terminator power option
- LED driver available
- MTBF 300,000 hours
PERFORMANCE
===========
Data transfer rate
Buffer to/ 3 MB/S (instantaneous)
from media
Host to buffer up to 10 MB/S (synchronous)
Host from buffer up to 10 MB/S (synchronous)
Rotational speed 4316 RPM
Average latency 6.95 mS
Seek time (E12, E15)
Read Write
Single cylinder 0.6 mS 2.5 mS
Average 9.4 mS 11.4 mS
(weighted)
Full stroke 18.5 mS 20.5 mS
ELECTRICAL CONNECTOR LOCATIONS
==============================
Options
Jumper SCSI Power
Block Pin 1 Pin 1
| | |
--------|----------------------------------------|------|----------
| o o o o|o o o o o o o o o o o o o o o o o o o o O | | | |
| o o o o|o o o o o o o o o o o o o o o o o o o o o | | 0 O O O |
|--------|------------------------------------------- \-----------/|
| --------------- --------------- --------------- |
| |o o o o o o o| | | | | |
| |o o o o o o o o| | | | | |
| --------------- | | | | |
| ---------- | | | | |
| | | | | | | |
| | | | | | | ------- |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| ---------- --------------- --------------- ------- |
-------------------------------------------------------------------
Electrical Connectors (view from back of Disk Drive)
JUMPER SETTINGS
The jumper block shown above is used to select the SCSI device ID,
to control the spindle motor start and to select the appropriate
option pin (B1) function. There are four ground pins, A1, A2, A3,
B2. If pin B1 is jumpered to ground, drive initiated synchronous
negotiation is disabled, but requests from the initiator will still
be accepted. Option block ground pins must only be used for selecting
jumper block functions.
OPTION BLOCKS
MODEL E
Bit Option Pin Address Bit Address
0 1 2 | Auto Start 0 1 2
________|_|_______ ___________________
| | | | | _ |
| O O O | O O O O | = 0 | O O|O| O O O O | = 4
| O O O O O O O O | | O O|O|O O O O O |
| | | - |
|__________________| |___________________|
__________________ ___________________
| _ | | _ _ |
| |O|O O O O O O | = 1 | |O|O|O| O O O O | = 5
| |O|O O O O O O O | | |O|O|O|O O O O O |
| - | | - - |
|__________________| |___________________|
__________________ ___________________
| _ | | _ _ |
| O|O|O O O O O | = 2 | O|O|O| O O O O | = 6
| O|O|O O O O O O | | O|O|O|O O O O O |
| - | | - - |
|__________________| |___________________|
__________________ ___________________
| _ _ | | _ _ _ |
| |O|O|O O O O O | = 3 | |O|O|O| O O O O | = 7
| |O|O|O O O O O O | | |O|O|O|O O O O O |
| - - | | - - - |
|__________________| |___________________|
__________________________
| C1 C2 C3 D2 D3 D4 D5 |
| O O O O O O O |
| O O O O O O O O |
| A1 A2 A3 B1 B2 B3 B4 B5 |
|__________________________|
Figure 1 Option Block
With the auto start jumper in place the motor spins up when power is
applied. With the auto start jumper removed the motor spins up when
the drive is issued a Start Unit command. Jumper block pins B3 and
D3 provide spindle synchronization capability. Jumper block pins B4
and D5 provide direct drive capability to an activity LED.
Note: During the power up sequence the option pin is interrogated.
If it is grounded the pin remains an input. If it is not grounded
it becomes an output, indicating Motor Active or Command Active
depending on the state of the CMDAC bit in Mode page 0.
As an input the option pin has several effects upon the SCSI function.
Please refer to the 0663E SCSI Specification for details.
MODE SELECT OPTIONS
===================
Certain 'Mode Select' parameters are alterable via the SCSI 'Mode
Select' command. This allows certain drive characteristics to be
modified to optimize performance on a particular system. Refer to
the 0663 Enhanced Disk Drive SCSI Specification for detailed
definition of Mode Select parameters. Changeable parameters are:
Block Descriptor
Number of Blocks
Block length
Page 0
QPE (Qualify Post Error)
UQE (Untagged Queueing Enable)
DWD (Disable Write Disconnect)
ASDPE (Additional Save Data Pointer Enable)
CMDAC
RPFAE (Report Predictive Failure Analysis Error)
CPE (Concurrent Processing Enable)
Page 1
AWRE (Automatic Write Reallocation Enable)
ARRE (Automatic Read Reallocation Enable)
TB (Transfer Block)
RC (Read Continuous)
PER (Post Error)
DTE (Disable Transfer on Error)
DCR (Disable Correction)
Read Retry Count
Page 2
Read Buffer Full Ratio
Write Buffer Empty Ratio
Maximum Burst Size
Page 4
RPL (Rotational Position Locking)
Rotational Offset
Page 7
PER
DCR
Page 8
WCE (Write Cache Enable)
MF (Multiplication Factor)
RCD (Read Cache Disable)
Demand Read Retention Priority
Write Retention Priority
Disable Pre-fetch Transfer Length
Maximum Pre-fetch
Maximum Pre-fetch Ceiling
Number of Cache Segments
Page A
Queue Algorithm Modifier
QErr (Queue Error Management)
DQue (Disable Queueing)
DATA ORGANIZATION
=================
CAPACITY
Model E15
bytes/ gross formatted logical
logical sectors/ capacity blocks/
block track (bytes) file
256 111 1,028,788,480 4,018,705
512 66 1,206,364,160 2,356,180
520 65 1,206,002,200 2,319,235
524 64 1,195,919,960 2,282,290
1024 66 1,206,364,160 1,178,090
2048 66 1,206,364,160 589,045
4096 66 1,206,362,112 294,522
6000 47 1,240,668,000 206,778
Model E12
bytes/ gross formatted logical
logical sectors/ capacity blocks/
block track (bytes) file
256 111 890,915,328 3,480,138
512 66 1,044,112,896 2,039,283
520 65 1,043,777,280 2,007,264
524 64 1,035,028,380 1,975,245
1024 66 1,044,112,384 1,019,641
2048 66 1,044,111,360 509,820
4096 66 1,044,112,360 254,910
6000 47 1,073,190,000 178,865
Cylinders
Total cylinders 2469
User cylinders 2463
Disks 8 (E15)
7 (E12)
Tracks/cylinder 15 (E15)
13 (E12)
User bytes/sector 256 - 750
User bytes/logical block 256 - 6000
with exceptions
(increments in bytes) = 1 256 - 750
= 2 752 - 1500
= 4 1504 - 3000
= 8 3008 - 6000
Band 1 user cylinders 1641
spares/cylinders 30 (E15)
27 (E12)
Band 2 user cylinders 822
spares/cylinder 40 (E15)
36 (E12)
Last cylinder extra spares 80 (E15)
72 (E12)
Note: Banding as defined here refers to the number of spare sectors
provided per cylinder to reallocate defective sectors. Band 2
cylinders are those nearer the inside diameter of the data surfaces.
These have additional spare sectors since the likelihood of defective
sectors is higher in this region. This feature does not affect the
instantaneous media data rate which is constant across all cylinders.
OPERATING ENVIRONMENT
=====================
The drive operates within its' performance limits when the following
environment is maintained. Product life calculations are based on the
nominal environment for a typical application.
Humidity:
Operating 8% to 90% noncondensing
Storage 5% to 95% noncondensing
Shipping 5% to 100% (applies at a packaged level)
Wet Bulb Temperature:
Operating 80 degrees F (26.7 degrees C) maximum
Shipping/Storage 85 degrees F (29.4 degrees C) maximum
Elevation:
Operating -1000 to 10,000 feet
(-304 to 3048 meters)
Shipping/Storage -1000 to 40,000 feet
(-304 to 12,192 meters)
Temperature:
Operating ambient 41 to 131 degrees F (5 to 55 degrees C)
Operating casting 41 to 131 degrees F (5 to 60 degrees C)
temperature
Operating casting Not to exceed 3.6 degrees F (2 degrees C)
temperature delta (see note below)
Shipping -40 to 149 degrees F (-40 to 65 degrees C)
Storage 34 to 149 degrees F (1.1 to 65 degrees C)
Temperature Gradient
Operating 18 degrees F (10 degrees C) per hour
Shipping/Storage below condensation
These temperature limits are extremely important and must not be
exceeded at the worst case drive and system operating conditions
with the drive randomly seeking, reading, and writing.
Note: Measured between top and bottom of disk enclosure. See
Figure 3 for the location of measurement points.
COOLING
This drive does require airflow in order to fulfill its reliability
performance.
Please refer to Environmental section of the 0663 Enhanced Disk Drive
product specification for full details of the maximum allowable
temperatures and measurement points.
A summary of the measurements is given on the back page of this data
sheet.
INTEGRATION INTO USING SYSTEM
- The drive's mounting frame is electrically isolated from the drive's
disk enclosure.
NOTE: THE DISK ENCLOSURE IS NOT AT GROUND POTENTIAL.
Any user mounting scheme must not result in the disk enclosure being
shorted to ground. Drive malfunction will result if this occurs.
COMPATIBILITY
- Testing should be carried out to ensure that the drive is fully
compatible with the using system.
System BIOS, Operating system, Device drivers and interface card
BIOS/characteristics can effect the ability to attach the drive to
the system. All need to be verified jointly as compatible with the
drive.
The drive should be verified in the mode it will be attached to the
system.
It cannot be assumed that a drive which attaches as an additional
SCSI device on a system providing only additional data storage will
have no problems when attached as the only/boot drive.
SCSI ADAPTERS
- The following SCSI Adapters have been operated with the 0663E
drives on typical ISA E15A platforms under MS-DOS and worked
in these Environments with no observed problems.
- ISA Bus Adapters-
ADAPTEC AHA1542BS6
INFOSYS C5630B
WESTERN DIGITAL WD7000-ASC
DATA TECHNOLOGY CORP DTC3180
DATA TECHNOLOGY CORP DTC3280A
DATA TECHNOLOGY CORP DTC3150
FUTURE DOMAIN TMC 850M
FUTURE DOMAIN TMC 860M
FUTURE DOMAIN TMC 885M
TENTIME TNT-6000
- EISA Bus Adapters -
ADAPTEC AHA1740
DATA TECHNOLOGY CORP DTC3290
- The Adaptec AHA1542B SCSI controller is not compatible with the
0663-E12/E15 drives.
Adaptec provides an upgrade kit comprising new BIOS and Microcode PROMS
to allow conversion of existing AHA1542B cards to the AHA1542B56
version.
KNOWN INTEGRATION SOLUTIONS
- The drive initiates negotiation for synchronous data transfer rate
during the initialization sequence. This may cause problems which
prevent attachment to some systems/SCSI controller cards. Jumpering
the option pin to ground on the jumper block prevents the drive
sending the synchronous negotiation message. However, other changes
are also made to the drive's behavior ref error reporting and sense
information returned. These are detailed in the Disk Drive SCSI
specification.
Platform(s) DECDECStation3100
DECVAXStation3100
DECMicroVax3100
Operating System(s) VMS V5.4.2
VMS V5.5
VMS V5.6
Note: Attachment to earlier versions of the VMS operating system is not
possible.
Configuration Required:
Alter MODE SELECT Page 1, Byte 2 to '04'
Alter MODE SELECT Page 7, Byte 2 to '04'
Platform(s) DECDECStation3100
DECVAXStation3100
DECMicroVax3100
Operating System(s) Ultrix V4.1
Ultrix V4.2
Configuration Required:
Connect 'OPTION PIN' on drive jumper block to ground.
Platform DECStation5000
Operating System(s) Ultrix V4.1
Ultrix V4.2
Configuration Required:
No modifications to the drive are required. However it is necessary
to modify the list of device types in the table of known drives
contained in the 'usr/sys/data/scsi-data,c' system file as follows:
Change first line from '/*UNKNOWN DISK*/'to'/* IBM OEM */. Following
this change, the operating system kernel must be rebuilt (recompiled).
Platform SUNSpareStation
Operating System(s) Sunos V4.1.2
Sunos V4.1.2
Configuration Required:
The drive will attach with no changes but should the drive enter
degraded mode, due for instance to an interrupted format, it will be
necessary to ground the option pin on the drive jumper block before
the drive can be reformatted on the system.
Device Parameter Settings Declared to System:
The system will accept a wide range of settings provided these do not
result in the total number of data sectors declared (Data Cylinders x
Heads x Sectors per track) exceeding the number available on the drive.
Platform(s) NEXTStation, NEXTCube
Operating System(s) Proprietary (supplied with platform)
Configuration Required:
Alter MODE SELECT Page 0, Byte 2 to '40'
Alter MODE SELECT Page 0, Byte 3 to '80'
Platform HEWLETT PACKARD
HP9000-710
Operating System(s) Proprietary (Supplied with platform)
Configuration Required:
Connect 'OPTION PIN' on drive jumper block to ground.
Platform APPLESYSTEMS
Operating System(s) Proprietary (supplied with platform)
Configuration Required:
No modifications to the drive are required. However, attachment to
many APPLE systems is not possible using the device drivers supplied
as these support only certain predefined drives. Fortunately there
are several third-party device drivers available which do allow
attachment of the Apple compatible versions of the 0663-E drives.
There are third party device drivers, including 'SPOT ON' from MacPeak
Research, which allow attachment of the standard versions of the 0663-E
drives.
These overcome the incompatibility associated with the drive returning
the 'UNIT ATTENTION' condition in response to the first SCSI command
following power-up or a SCSI bus RESET. They also allow the APPLE
'Blind Write' feature to be turned off, which is necessary since this
feature is not supported by the drive and would result in SCSI Write
errors occurring.
PLEASE NOTE THAT TURNING 'BLIND WRITE' OFF WILL RESULT IN DEGRADED
SYSTEM PERFORMANCE DURING WRITE OPERATIONS.
TROUBLE SHOOTING
- The drive reports status in response to the SCSI 'Sense' command
and this is a powerful troubleshooting tool on any drive whose
failure mode still allows it to communicate.
- If the drive is interrupted by powering down during a format
operation it will enter degraded mode. In this mode it will return
a 'Unit Attention' condition to most SCSI commands.
Issuing a 'Sense' Command immediately after issuing a 'Test Unit Ready'
Command will return sense data which indicates that the drive is in
degraded mode.
The way to recover the drive is to issue the SCSI 'Format' command and
allow the drive to format to completion.
PRODUCT VARIATIONS
==================
Model Comments
Corsair 2E E15 This is the standard 1.2 GB version of the
PN 55F9824 2E drive suitable for most applications.
NB: This drive is not suitable for
attachment to 'Apple' systems as it does not
support the 'Blind Write' and 'Unit Attention
Disable' features used by the majority of these
systems.
Corsair 2E E15 This is the special 1.2 GB version of the 2E
PN 55F9841 drive required for compatibility with 'Apple'
systems. It features microcode changes to
support the Apple 'Blind Write' and 'Unit
Attention Disable' requirements.
Integrators attaching to 'Apple' systems
must evaluate this version of the 1.2 GB E15.
Corsair 2E E12 This is the standard 1 GB version of the 2E
PN 55F9825 drive suitable for most applications.
NB: This drive is not suitable for attachment
to 'Apple' systems as it does not support the
'Blind Write' and 'Unit Attention Disable'
features used by the majority of these systems.
Corsair 2E E12 This is the special 1 GB version of the 2E drive
PN 55F9849 required for compatibility with 'Apple' systems.
It features microcode changes to support the
Apple 'Blind Write' and 'Unit Attention Disable'
requirements. Integrators attaching to 'Apple'
systems must evaluate this version of the 1 GB
E12.
SPINDLE SYNCHRONIZATION
=======================
SPINDLE SYNCHRONIZATION OVERVIEW
There are four modes of spindle synchronization. Spindle synchronization
function modes, which list the function mode versus -MASTER SYNC and
-SLAVE SYNC. The following paragraphs give a short description of each
of the four spindle synchronization modes:
- The Slave file (Slave Sync mode) receives the index from the Master
file on the -SLAVE SYNC line and synchronizes its file index (Slave
index) to it.
- Should the file be the Master file. (Master Sync mode) it outputs
its file 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 nonsync mode, the file will receive the -SLAVE SYNC signal,
but it is not used by the file.
Listed below is a table of the four different modes that the -MASTER
SYNC and -SLAVE SYNC signals are used as. Reference the SCSI
Specification for further information on the different synchronization.
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
____________________________________________________________
Spindle Synchronization Functional Modes
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
Mode select command, Rigid Disk Drive Geometry Parameters. A rotational
offset of 2/144 of a revolution up to 144/144 of a resolution (360
degrees) may be selected in increments of 1/144 of a resolution.
Reference the SCSI Specification for further information on the
rotational offset of synchronized spindles.
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 in synchronizing, it will not be
able to read and write data. Once synchronized, the file with maintain
+/- 20 usec synchronization tolerance.
-Slave Sync
--->| |<--- 1.0 U Sec
________ __________________/ /___________ ________________
| | / / | |
|____| |____|
|<----------------13.90 M Sec ------>|
--->| |<--- +/-20 U Sec
____ ____
| | | |
______________| |__________/ /__________________| |_____________
/ /
+Slave Index
SPINDLE SYNCHRONIZATION BUS
The spindle synchronization Bus consists of the two signal lines,
-MASTER SYNC and -SLAVE SYNC. Files that are to be used in the
synchronized mode will need the -SLAVE SYNC line of the synchronization
bus daisy chained together. Reference the following figure.
------------ ----------- ----------- -----------
|MASTER DRIVE| |SLAVE DRIVE| |SLAVE DRIVE| |SLAVE DRIVE|
------------ ----------- ----------- -----------
| D3 B3 | | D3 B3 | | D3 B3 | | D3 B3 | Option
-------- ------- ------- ------- Block
| -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 files
+5 volt supply. A maximum of 16 files can have their -MASTER SYNC or
-SLAVE SYNC lines daisy chained together. Violating this could damage
the Master files drivers on the -MASTER SYNC and/or -SLAVE SYNC lines.
BUS CHARACTERISTICS
maximum Bus length = 6 meters
4 micro seconds negative active pulse
0.8 volts = valid low input
2.0 volts = valid high input
0.4 volts = low output
64 mA = maximum output low level sink current
high level output low level sink current
The driver used for these two signals lines is a open collecter buffer.
DC POWER REQUIREMENT LIMITS
===========================
The following voltage specifications apply at the file voltage connector,
there are no special power on/off sequencing requirements.
+12 Volt Supply
+/- 5.0% (during run)
-7.0% +5.0% (during start)
+5 Volt Supply
+/- 5.0%
Power supply
current (Amps) +5 Volt +12 Volt
______________________________________________________________
Idle average 1.09 0.389
Seek peak -- 1.84 (see note 1)
Spin-up -- 2.6 (see note 2)
Note 1: The idle average, communication and seek peak should be added
together to determine the total 12 volt peak current.
Note 2: The current at start is the total 12 volt current required
(ie, the motor start current, module current and voice coil retract
current).
ELECTRICAL INTERFACE SPECIFICATIONS
===================================
The IBM OEM 0663 Model E Disk Drive uses single-ended drivers and
receivers that permit cable lengths of up to 6 meters (19.68 feet).
CONNECTORS
The drive has two connectors: one for power, the other for connecting
to the SCSI bus.
POWER
The DC power connector is designed to mate with AMP PN 1-480424-0
connector or equivalent. Pin assignments are shown in figure 2.
Pin # 4 3 2 1
_______________________
| _________________ |
| / \ |
| | +5V GND GND +12V| |
| | O O O O | |
| |_________________| |
|_____________________|
Figure 2 Power Connector Pin Assignments
SCSI SIGNAL CONNECTOR
The SCSI signal connector is a 50-pin connector, Molex PN 70248
or equivalent, meeting that desire it. In order to use the
termination power, the user needs to install a jumper between pins D4
and B4 of the Option block. The jumper only needs to be installed on
the last device on the SCSI bus (ie, The file that is physically
closest to the terminator). The 0663-E can source up to 1.5 Amps of
current at 5.0 volts (+/- 5%) for termination power.
The drive has no internal SCSI bus terminators. The user is responsible
for properly terminating and powering the SCSI bus in the system.
AMP PN 88-4163-081-1, DATA MATE DM500-06-8, or equivalent external
terminator may be used.
For a single-ended cable, a 50-conductor flat cable or a 25 twisted
pair cable can be used, with a maximum length of 6.0 meters and a stub
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 of all SCSI signals
except -RST, and no more than 0.004 meters additional stub length to -RST
SCSI BUS ELECTRICAL CHARACTERISTICS
Note: The drive incorporates the Western Digital WD33C93B SCSI
Interface Controller and conforms to the ANSI/SCSI Interface standard.
LED PINS
The LED pins (D5/B5 on the options block) can be used to drive an
external LED. The LED cathode should be connected to pin B5 of the
option block, and the LED anode should be connected to pin D5 of the
option Block.
The 0663-E provides up to 20 mA of drive capability. The SCSI signal
connector is a 50-pin connector, Modex PN 70248 or equivalent, meeting
ANSI/SCSI specifications.
SCSI BUS TERMINATION POWER
Termination power is optionally provided for system
START AND STOP TIMES
====================
Time Nominal Maximum
____________________________________________________
Power Up 2.0 sec 2.4 sec
Start Unit 19.5 sec 1 min
Stop 9 sec 12.5 sec
During the start sequence diagnostics are performed and are divided into
two sections. Power-up pre motor-start diagnostics test the static RAM
(control store memory), post motor-start diagnostics test the data
buffer, upload the code, perform channel testing, and 'Reassign in
Progress' operations. For more information on diagnostics see the 0663
Enhanced Disk Drive SCSI Specification.
If a Reset is issued before the drive is ready, the power-on sequence
starts again. Otherwise, when a Reset is issued the present state of
the motor is not altered.
A timeout of one minute or more is recommended for the Start Unit
command. This allows the system to take advantage of the extended
ERP that the drive does in order to successfully start up.
Note: Start-up sequence time may increase by as much as 2.5 sec
(1.5 sec nominally) when the device is requested via Mode Select
Parameters to synchronize the spindle motor to another device.
Note: It is the integrators' responsibility to ensure that equipment
into which this drive is fitted meets the relevant regulatory
requirements (EMC etc).
ELECTROMAGNETIC COMPATIBILITY
=============================
The drive meets the following EMC requirements when installed in the
user system and exercised with a random accessing routine at maximum
data rate:
- United States Federal Communication Commission (FCC) Rules and
Regulations, Part 15, Subject J--Computer Devices 'Class B Limits'.
- European Economic Community EEC directive #76/889 related to the
control of radio frequency interference and the Verband Deutscher
Elektrotechniker (VDE) requirements of Germany (GOP).
MECHANICAL SPECIFICATIONS
=========================
This section details the mechanical specifications of the IBM OEM
0063E disk drive.
WEIGHT
Approximately 2.2 pounds (1.0 kilograms)
DIMENSIONS
U.S. S.I. Metric
_____________________________________________
Height 1.63 in 41.3 mm
Width 4.00 in 101.6 mm
Depth* 5.75 in 146.0 mm
* The connector exceed the depth dimension by 6.37 mm.
CLEARANCES
A minimum of 2 mm clearance should be given to the top and bottom
surfaces except for a 10 mm diameter area around the bottom mounting
holes.
To assist cooling, it is recommended that a clearance of 6 mm be
provided above and below the drive.
Precautions must be taken to avoid blocking any of the vent holes (on
the side and ends of the drive).
MOUNTING
The drive can be mounted with any surface facing down.
See diagram below for location of mounting holes.
The torque applied to the mounting screws must not exceed 1.0 +/- 0.1
Newton meters. Mounting screws are 6-32 UNC-2B thread (in addition
there are 4 M4 threaded holes on the bottom of the drive). The maximum
penetration of any mounting screw must NOT exceed 3.8 mm.
------
SIDE VIEW | |
----------------------------^ -- __|
| |_| |
FRONT | | REAR
| |
| |
| O O O |
-----------------------------------
O = 6-32 UNC-2B thread
o = M4 Thread
BOTTOM VIEW
---------------------------------
| O o 0 o |_
| |
| |
FRONT | | REAR
| |
| __|
| |__
| O o O o |
-----------------------------------
Note: Screws must not penetrate more than 3.8 mm.
TEMPERATURE MEASUREMENTS
========================
Temperature measurements should be made at the points shown in the
diagram, the ensure that the maximum values are not exceeded under any
circumstances. Forced air cooling may be required in order to achieve
this.
RIGHT SIDE VIEW
-------------------------------------------------
| |
FRONT | Frame Notch 3--->| | | REAR
| 140 Degrees F | | |
| 60 Degrees C ------- |
| |
-------------------------------------------------
FRONT VIEW
Motor ------------------------------------- VCM
Heat Sink 1-->| | | |<-- Heat-Sink 1
140 Degrees F | | | | 140 Degrees F
60 Degrees C | | | | 60 Degrees C
|-------- --------|
| |
-------------------------------------
REAR VIEW
-------------------------------------
|:::::::::::::::::::::::::| |O O O O|
|------------------------- -------|
| ---- ---- ---- |
| | | | | | | |
| ---- ---- ---- |
--------------|----------------------
|
WD10C012
140 Degrees F
60 Degrees C
Figure 3 Temperature Measurement Points
Figure 3 defines where measurements should be made to determine module
and casting temperatures, top side and bottom side (the difference
between the two points is defined as the delta). There must be
sufficient air flow through the drive so as not to exceed the casting
and module temperature limits.
EXTERNALLY GENERATED RIPPLE
===========================
(as seen at file power connector)
Voltage Maximum Notes
____________________________________________________
+5 VDC 100 mV peak-to-peak 0-10 MHz
+12 VDC 150 mV peak-to-peak 0-10 MHz
During file start up and seeking, 12 volt ripple is generated by the
file (referred to as dynamic loading). If several files have their
power daisy chained together then the power supply ripple plus other
file's dynamic loading must remain within the regulation tolerance
window of +/- 5%. A common supply with separate power leads to each
file is a mode desirable method of power distribution.
The file's mounting frame is electrically isolated from the file's disk
enclosure. The disk enclosure is not at ground potential. Therefore
any user mounting scheme must not result in the disk enclosure being
shorted to ground.
To prevent external electrical noise from interfering with the file's
performance, the file's mounting frame may be electrically isolated
from the system mounting frame. If isolation is not practical then
the file's mounting frame must be within +/- 150 millivolts of the
file's power supply ground. At no time should more than 35
milliamps of current be injected into the file frame. The frequency
range that has been tested with this specification is 0 to 100 MHz.
HOT PLUG/UNPLUG SUPPORT
If there is a need to plug or unplug the file while the power supply
is active than the using system must assure that the ground pin makes
contact first. This prevents a possible CMOS latch-up condition.
During the hot 'plug-in' event the 5 or 12 volt power supply voltage
must not go out of tolerance on the high voltage direction. During
the hot 'unplug' event capacitors on the file will prevent inductive
flyback voltages from increasing to the point of damage to the file.
If the SCSI bus is connected while it has power active on any of its
lines then a power or signal glitch may occur on the bus. If any other
devices are sharing the bus then this glitch may cause them to produce
an error.
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 continues 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 milliseconds duration.
The shock pulses are applied in either direction in each of three
mutually perpendicular axes, one axis at a time.
NON-OPERATING SHOCK
No damage will occur if the unpackaged drive is not subjected to a
square wave shock greater than a value of 35 Gs applied to all of the
three axes for a period of 20 milliseconds, one direction at a time.
AMP is a trademark of AMP Incorporated.
Molex is a trademark of Molex Incorporated.
DATA MATE is a trademark of AMP Incorporated.
Western Digital is a trademark of the Western Digital Corporation.
NEXT is a trademark of NEXT Corporation.
WARNING: This disk drive can be damaged by Electro-Static Discharge,
please follow recommended ESD procedures before unpacking or handling
the drive. Ask your Dealer for details if you need assistance.
This data sheet is not a substitute for the full product specification,
which should be used when detailed information is required.
Product Description data represents IBM's design objectives and is
provided for comparative purposes: actual results may vary based on
a variety of factors. This product data does not constitute a
warranty. Questions regarding IBM's warranty terms or methodology used
to derive this data should be referred to your IBM OEM representative.
Data subject to change without notice.
