2 2 1 0 A MICROPOLIS
NO MORE PRODUCED Native| Translation
------+-----+-----+-----
Form 3.5"/HH Cylinders 2372| 1024| 867|
Capacity form/unform 976/ 1138 MB Heads 9| 16| 16|
Seek time / track 10.0/ 2.0 ms Sector/track | 63| 63|
Controller IDE / AT Precompensation
Cache/Buffer 512 KB SEGMENTED Landing Zone
Data transfer rate MB/S int Bytes/Sector 512
5.000 MB/S ext
Recording method RLL operating | non-operating
-------------+--------------
Supply voltage 5/12 V Temperature *C 5 50 | -40 65
Power: sleep W Humidity % 10 90 | 10 95
standby W Altitude km -0.061 3.048| -0.305 15.250
idle 11.5 W Shock g 10 | 60
seek 13.0 W Rotation RPM 5400
read/write W Acoustic dBA 36
spin-up W ECC Bit 32,REED SOLOMON
MTBF h 300000
Warranty Month
Lift/Lock/Park YES Certificates
**********************************************************************
L A Y O U T
**********************************************************************
MICROPL. 2217A/2210A/2205A PRODUCT DESCRIPTION 135864 REV. A
+---------------------------------------------------------+
| |XX J2
| 1xx Power
| |XX
++ LED |XX
++ |XX
| |XX J1
| 1-+ |XX
| W1+-+J6 |XX
| W2+-+ |XX
| Reserved+-+ |XX
| Reserved+-+ |XX
| Reserved+-+ |XX
| |X1
| |
| |XX J3
| |XX Power
+----------------------------------xxxxxx-----------------+ 1
+--------------------------------------+
| ++J4 |
| ++ Frame Ground |
| |
| |
| |
| J2 J1 1 J3 |
+xxxxx1-XXXXXXXXXXXXXXXXXXXXXX-XXXXXXXX+
+Power--------Signal------------Power-1+
**********************************************************************
J U M P E R S
**********************************************************************
MICROPL. 2217A/2210A/2205A PRODUCT DESCRIPTION 135864 REV. A
Jumper Setting
==============
Master/Slave Selection
----------------------
The interface allows up to two drives (a Master and one Slave) to be
attached to the AT/IDE bus.
+----------------+-------------------------------------+
| Jumpers | |
| W2 W1 |Description |
+----------------+-------------------------------------+
| CLOSED CLOSED |Drive emulates both Master and Slave |
+----------------+-------------------------------------+
| CLOSED OPEN |Drive is Master, Slave is present |
+----------------+-------------------------------------+
| OPEN CLOSED |Drive is Slave |
+----------------+-------------------------------------+
| OPEN OPEN |Drive is Master |
+----------------+-------------------------------------+
Drive emulates both Master and Slave:
Specifies that one drive can emulate both the Master drive (Drive 0)
and the Slave Drive (Drive 1). This option allows for existing host
systems to utilize the full capacity of the drive.
When the drive is configured as both the Master and the Slave, the
following partition is implemented:
Model 2205A:
Drive 0: 1024 logical cylinders, 16 logical heads, 63 logical
sectors
Drive 1: 26 logical cylinders, 16 logical heads, 63 logical
sectors
Model 2210A:
Drive 0: 1024 logical cylinders, 16 logical heads, 63 logical
sectors
Drive 1: 867 logical cylinders, 16 logical heads, 63 logical
sectors
Model 2217A:
Drive 0: 1024 logical cylinders, 16 logical heads, 63 logical
sectors
Drive 1: 2128 logical cylinders, 16 logical heads, 63 logical
sectors
Use the ONTRACK 5.22 or 6.0 utility software to configure the drive
into > 528 MB partitions. You get the ONTRACK utilily software with
the drive.
Drive is Master, Slave is present:
Specifies the Master Drive (Drive 0) when two drives are used
in a system. The other drive is Slave.
Drive is Slave:
Specifies the Slave drive (Drive 1) when two drives are used in
a system. The other drive is Master.
Drive is Master:
Specifies the Master drive (Drive 0) when one drive is used in
a system.
When the drive is configured as a Master OR as a Slave, the
recommended drive type parameters are as follows:
logical cylinders logical heads logical sectors
Model 2205A: 1050 16 63
2210A: 1891 16 63
2217A: 3152 16 63
J2 DC Power and pin connector assignments
-------------------------------------------
+------------------
| +---J2----+ +-J1 pin 1 +5 V
| | 3 2 1 | |40 pin 2 +12 V
| +---------+ +-- pin 3 Return
+---------------
J3 DC Power and pin connector assignments
-------------------------------------------
-------------------+
J1+ +-----J3-----+| pin 1 +12 VDC
1| | 4 3 2 1 || pin 2 +12 Volts Return
-+ +------------+| pin 3 + 5 Volts Return
------------------+ pin 4 + 5 VDC
**********************************************************************
I N S T A L L
**********************************************************************
MICROPL. 2217A/2210A/2205A PRODUCT DESCRIPTION 135864 REV. A
Notes on installation
=====================
Recommended orientations
------------------------
horizontally vertically
+-----------------+ +--+ +--+
| | | +-----+ +-----+ |
| | | | | | | |
+-+-----------------+-+ | | | | | |
+---------------------+ | | | | | |
| | | | | |
| | | | | |
| +-----+ +-----+ |
+--+ +--+
Dimensions and Mounting
-----------------------
The drives use industry-standard mounting techniques for 3 -inch
full-height Winchester disk drives.
The drive is designed such that the outer frame should be hard
mounted to the host equipment; no additional/external shock mounts
should be used.
Recommended orientation is vertical on either side, or horizontal
with the Device Electronics board down; other mounting orientations
may be used.
No matter what mounting orientation is used, Micropolis specifies
that the maximum HDA casting temperature not exceed 60*C (140*F).
Mounting Screws
---------------
3 per side 6-32 UNC-2B thru
4 on bottom 6-32 UNC-2B thru
Caution: The mounting screws must be selected so that they do not
penetrate the bottom mounting holes by more than 0.20 inches or the
side mounting holes by more than 0.156 inches.
Screws that are too long will short to PCBA components and/or prevent
proper operation of the shock mount system and may damage the HDA.
Interface Electrical Characteristics
------------------------------------
Interface control, data, and status signals are TTL compatible in
both send and receive directions. Maximum cable length is 18 inches.
The following cable specification are provided to ensure system
integrity.
Driver IOL sink current = 12 milliamps (minimum)
Driver IOH source current is -400 microamps (maximum)
Cable capacitive loading = 200 picofarads (maximum)
Signal Connector J1
-------------------
J1 is a 40-pin connector. The bus interface connection is made via
this connector. Signals on J1 include the 16-bit data bus and control
and address lines.
Recommended Cable: 3M Scotchflex 3302-40 or equivalent.
Mating connector: 3M 3417-7000 or equivalent.
J2 DC Power Connector
----------------------
J2 is a 3-pin, keyed connector. Both +5V and +12V are supplied to the
drive via this connector. This power connector is usually used by
low-power computer systems.
Mating Connector: MOLEX 5480 or equivalent
The pin assignment differ from the pin assignment specified in the
current ATA Specification in order to maintain compatibility with
industry-standard conventions.
J3 DC Power Connector
----------------------
J3 is a 4-pin, keyed, AMP MATE-N-LOCK connector. Both +5V and +12V
are supplied to the drive via this connector. This power connector
is the industry standard and is used in most applications.
Mating Connector: AMP 1-480424-0 or equivalent
Pins: AMP 350078-4
Suggested Wire Size: 18 AWG
Ground Connector J4
-------------------
3/16-inch spade lug J4 is provided for grounding. Systems
characteristics determine proper ground connection.
Mating connector: AMP 60972-2 or equivalent.
Adjustments and Maintenance
---------------------------
2112A drives requires no adjustments or periodic maintenance;
additionally, no mechanical adjustments are required to prepare a
system for handling or shipment.
Field-Replacable Components
---------------------------
The concept of repair by replacement of complete functional
components is utilized in the 2112A, resulting in an MTTR of less
than 15 minutes.
**********************************************************************
F E A T U R E S
**********************************************************************
MICROPL. 2217A/2210A/2205A PRODUCT DESCRIPTION 135864 REV. A
Description
-----------
These drive models provide users with high-speed, random access
data storage and meets the needs of diverse application environments.
The drives are compatible with the proposed ANSI ATA (AT Attachment)
specification.
32 to 40 MHz internal data transfer rate - highest performance AT/IDE
drive available in the industry.
Command Overhead less than 180 milliseconds
On-the-fly error detection and correction using Reed-Solomon Code.
Industry-leading 512K, 8-segment cache buffer...
Low-level formatted at the factory
How to Access Large Capacity IDE Disk Driver
--------------------------------------------
Many disk drive users think that the IDE interface cannot be used
with high capacity disk drives. This is absolutely not so!
The Disk Operating System (DOS) provides for the file system stored
in the disk drive. The application programs access the disk drives
by activating specific DOS interrupts. The DOS interrupt service
program activates the DOS disk drive device driver that services disk
access request. The DOS driver activates the BIOS interrupt 13H. The
BIOS program services disk access request by activating the disk
drive IDE interface commands.
The ONTRACK MANAGER utility software including the following
features:
a. Automated installation and setup
b. Driver software for single drive 1 GB operation
c. Read/Write multiple sector performance driver
Set Drive Parameters Command
----------------------------
- Drive types are used by BIOS. Saved in CMOS memory
- The user can define the drive types
- Both host and drives are powered up together
- The host issues a "set drive parameters" command to set the
number of sectors per track and the maximum head address
- The drive calculates the number of logical cylinders based on its
capacity
DOS to BIOS Communication
-------------------------
The DOS device driver accesses the disk drive for read or write by
setting the parameter block and the command code in the 80xx6
microprocessor registers and then activating BIOS Interrupt 13H.
DOS can also interrogate the disk drive parameters by setting a
specific command code in the 80286 register, activating Interrupt
13H, and the reading the disk drive parameters from the communication
registers. The communication registers used to interrogate the disk
drive parameters are defined in the following table.
+---------------------------------------------------------------+
| The disk drive capacity DOS can access via Interrupt 13H is |
| limited to 8.4 GByte. This limitation stems from the DOS-to- |
| BIOS communication register. |
+---------------------------------------------------------------+
| The maximum number of cylinders that can be addressed by using|
| Interrupt 13H is 1024 (10 bits). |
+---------------------------------------------------------------+
| The maximum number of heads that can be addressed by using |
| Interrupt 13H is 256 (8 bits) |
+---------------------------------------------------------------+
| The maximum number of sectors that can be addressed by using |
| Interrupt 13H is 63 (6 bits can provide for 64 sectors but |
| sector number 0 is not used) |
+---------------------------------------------------------------+
| Multiplying through yields 1024 x 256 x 63 x 512 = 8.4 GB |
+---------------------------------------------------------------+
BIOS to IDE Communication
-------------------------
The BIOS communicates with the disk drives via the IDE interface.
The IDE interface provides for 1 bit of drive address allowing for
two IDE drives to connect to the BIOS, 16 bits of cylinder address,
4 bits of head address, and 8 bits of sector number.
The disk drive capacity that BIOS can access via the IDE interface
is limited to 136.9 GByte. This limitation is set by the IDE inter-
face parameter registers as shown in the following table.
+---------------------------------------------------------------+
| The maximum number of cylinders that can be addressed by using|
| the IDE interface is 65536 (16 bis). |
+---------------------------------------------------------------+
| The maximum number of heads that can be addressed by using |
| the IDE interface is 16 (4 bis). |
+---------------------------------------------------------------+
| The maximum number of sectors that can be addressed by using |
| the IDE interface is 255 (8 bis can provide for 256 sectors |
| but sector number 0 is not used). |
+---------------------------------------------------------------+
| The sector size is fixed at 512 data bytes per sector. |
| Multiplying through yield 65536 x 16 x 255 x 512 = 136.9 GB |
+---------------------------------------------------------------+
Existing BIOS Disk Addressing Limit
-----------------------------------
The existing BIOS designs receive the cylinder address, head address,
and sector number from DOS and pass them to the IDE disk drive. Be-
cause the IDE interface is limited to 16 heads and the DOS-to-BIOS
interface is limited to 1024 cylinders and 63 sectors the PC disk
addressing capabilities is limited to:
1024 x 16 x 63 x 512 = 528.5 MB
As one can see, that the limitation is because existing BIOS designs
pass the disk drive parameters provided by DOS to the IDE disk drive.
Disk Drive Types in the CMOS Memory
-----------------------------------
The CMOS memory is a battery backed up storage used to hold configur-
ation information. The CMOS memory saves the number of disk drives
installed in the PC and the disk drive type information. The disk
drive type information consists of the number of cylinders, the
number of heads, and the number of sectors per head that the disk
drive has. Other disk drive type information (such as the landing
zone address) are not applicable to this discussion. The BIOS can
calculate the capacity of the disk drive from the CMOS parameters.
BIOS Power Up Sequence
----------------------
On power up, the BIOS program is activated by the computer hardware.
The BIOS program establishes the interrupt vectors (interrupt service
routine memory addresses) for the BIOS calls. After the default
values are in place, the BIOS program scans for additional BIOS
modules installed on adapter cards. The additional BIOS modules gain
control and establish or intercept interrupt vectors to hook them-
selves into the system. The additionally BIOS modules can provide
extended functionality, or specifically, can change the Interrupt 13H
interface characteristics.
Seek Time
---------
----------------------------------+--------+
Track-to-Track read msec. typ. | 2 |
Average msec. typ. | 10 |
msec. max. | 25 |
Latency msec. avg. | 5.56 |
----------------------------------+--------+