C F P - 1 0 6 0 W CONNER
NO MORE PRODUCED Native| Translation
------+-----+-----+-----
Form 3.5"/SLIMLINE Cylinders 2757| | |
Capacity form/unform 1062/ MB Heads 8| | |
Seek time / track 9.0/ 2.0 ms Sector/track | | |
Controller SCSI2 SI/WI/FAST Precompensation
Cache/Buffer 512 KB Landing Zone
Data transfer rate 4.000 MB/S int Bytes/Sector 512
20.000 MB/S ext SYNC
Recording method RLL 1/7 operating | non-operating
-------------+--------------
Supply voltage 5/12 V Temperature *C 5 55 | -40 60
Power: sleep W Humidity % 5 95 | 5 95
standby W Altitude km -0.061 3.048| -0.061 12.192
idle 6.6 W Shock g 5 | 75
seek 14.3 W Rotation RPM 5400
read/write 7.8 W Acoustic dBA 39
spin-up W ECC Bit
MTBF h 500000
Warranty Month
Lift/Lock/Park YES Certificates
**********************************************************************
L A Y O U T
**********************************************************************
CONNER CFP-1060W QUICK REFERENCE GUIDE DECEMBER 1994, REV. C
+---------------------------------------------------------++---+
| +-+ ++++ ||XX J2
| | |HDA SCSI|||| ||XX |68
| | |Connector Terminators|||| ||XX |Pin
| | | |||| ||XX |
| +-+ |||| ||XX |
| ++++ ||XX |
| E8++ ||XX |
| ++ ||XX |
| ||XX1|
| J7 ++ ||+-+|
| +-+ Spin Sync ++++++++ SCSI|| ||| |J5
| | | LED Driver ++++++++ Terminator|| ||| ||
| | | E1 ****** E7 || ||| ||
| +-+ || ||+-1|
| ++ ||xx |
| ||XX J4
| ||XX Power
+---------------------------------------------------------++--1+
**********************************************************************
J U M P E R S
**********************************************************************
CONNER CFP-1060W PRODUCT MANUAL REV. A 1/94 501-064
Jumper Setting
==============
Setting the SCSI Bus Address
----------------------------
There are four jumpers available for configuration of the SCSI ID:
E1, E2, E3 and E4 or alternatively pins 1,3,5, and 7 of J5.
Setting the SCSI ID
-------------------
+-------+----------+----------+----------+----------+
|SCSI ID|E1 / Pin 1|E2 / Pin 3|E3 / Pin 5|E4 / Pin 7|
+-------+----------+----------+----------+----------+
| 0 |OUT/OPEN |OUT/OPEN |OUT/OPEN |OUT/OPEN |
+-------+----------+----------+----------+----------+
| 1 |IN /GROUND|OUT/OPEN |OUT/OPEN |OUT/OPEN |
+-------+----------+----------+----------+----------+
| 2 |OUT/OPEN |IN /GROUND|OUT/OPEN |OUT/OPEN |
+-------+----------+----------+----------+----------+
| 3 |IN /GROUND|IN /GROUND|OUT/OPEN |OUT/OPEN |
+-------+----------+----------+----------+----------+
| 4 |OUT/OPEN |OUT/OPEN |IN /GROUND|OUT/OPEN |
+-------+----------+----------+----------+----------+
| 5 |IN /GROUND|OUT/OPEN |IN /GROUND|OUT/OPEN |
+-------+----------+----------+----------+----------+
| 6 |OUT/OPEN |IN /GROUND|IN /GROUND|OUT/OPEN |
+-------+----------+----------+----------+----------+
| 7 |IN /GROUND|IN /GROUND|IN /GROUND|OUT/OPEN |
+-------+----------+----------+----------+----------+
| 8 |OUT/OPEN |OUT/OPEN |OUT/OPEN |IN /GROUND|
+-------+----------+----------+----------+----------+
| 9 |IN /GROUND|OUT/OPEN |OUT/OPEN |IN /GROUND|
+-------+----------+----------+----------+----------+
| 10 |OUT/OPEN |IN /GROUND|OUT/OPEN |IN /GROUND|
+-------+----------+----------+----------+----------+
| 11 |IN /GROUND|IN /GROUND|OUT/OPEN |IN /GROUND|
+-------+----------+----------+----------+----------+
| 12 |OUT/OPEN |OUT/OPEN |IN /GROUND|IN /GROUND|
+-------+----------+----------+----------+----------+
| 13 |IN /GROUND|OUT/OPEN |IN /GROUND|IN /GROUND|
+-------+----------+----------+----------+----------+
| 14 |OUT/OPEN |IN /GROUND|IN /GROUND|IN /GROUND|
+-------+----------+----------+----------+----------+
| 15 |IN /GROUND|IN /GROUND|IN /GROUND|IN /GROUND|
+-------+----------+----------+----------+----------+
Open means open circuit or high impedance. Ground means
TTL logic low or logic ground.
Disabling Spin-Up at Power On
-----------------------------
A jumper in the E5 location, disables spin up after power-on for
applications where spin up sequencing is necessary. Disabling spin up
on application of power can also be enabled by setting the DSPN bit
in MODE SELECT page 00H (Operating Parameters). The Host must issue a
Start UNIT command to cause the drive to spin up.
+---------+------+---------------------+
| E5 | DSPN | Result |
+---------+------+---------------------+
| IN | 0 | Spin Disabled |
+---------+------+---------------------+
| IN | 1 | Spin Disabled |
+---------+------+---------------------+
| OUT | 0 | Spin up on Power On |
+---------+------+---------------------+
| OUT | 1 | Spin Disabled |
+---------+------+---------------------+
Delaying Spin Up at Power On
----------------------------
A jumper in the E6 location, delays spin up on power-up by the value
of the drive's SCSI ID multiplied by 4 seconds (i.e. SCSI ID 4 will
delay 16 seconds). Delaying spin up on application of power can also
be enabled by setting the SDLY bit in MODE SELECT page 00H (Operating
Parameters.)
+---------+------+---------------------+
| E6 | SDLY | Result |
+---------+------+---------------------+
| IN | 0 | Spin Delayed |
+---------+------+---------------------+
| IN | 1 | Spin Delayed |
+---------+------+---------------------+
| OUT | 0 | Spin up on Power On |
+---------+------+---------------------+
| OUT | 1 | Spin Delayed |
+---------+------+---------------------+
Disabling the SCSI Bus Parity
-----------------------------
SCSI parity is always enabled in both directions, unless the E7
Parity disable jumper is installed. Installing the jumper will cause
the drive to ignore SCSI bus Parity In but it will continue to
generate SCSI bus parity out.
Disabling SCSI Bus Terminator Power (TERMPWR)
---------------------------------------------
Power to the on-board terminators is provided by the higher of the
voltage supplied at Pin #17, 18, 51 & 52, J2 or the voltage level at
the 5 Volt power input to the drive minus one diode drop. Termination
Power to external terminators can be supplied by the drive through
Pin #17, 18, 51 & 52, J2. The TERMPWR line can be disconnected from
the drive by removing Jumper E8.
Jumper E8 | Result
----------+----------------------------------------------------
IN | TERMPWR (J2, Pin #17, 18, 51 & 52) connected to the
| drive's internal termination power.
OUT | TERMPWR (J2, Pin #17, 18, 51 & 52) open circuit.
Using the J5 Auxiliary Connector
--------------------------------
External logic cabled to the J5 connector may be used to control
certain characteristics of the drive or access signals.
J5 Auxiliary Connector Signal Definitions
+---------------+-----------------+
|Pin Signal | Pin Signal |
|Number Name | Number Name |
+------+--------+-------+---------+
| 1 | -SEL0 | 2 | -XTFAULT|
| 3 | -SEL1 | 4 | -VUNIQ |
| 5 | -SEL2 | 6 | -SPSYNC |
| 7 | -SEL3 | 8 | -XTAXTV |
| 9 | -ENTERM| 10 | -GROUND |
| 11 | +5V | 12 | -FAULT |
+------+--------+-------+---------+
-SEL0
Bit 0 of the binary coded SCSI ID selection input. This signal has a
value of 0 when it is negated and a value of 1 when it is asserted
for the purpose of selection or arbitration.
This signal is latched within 250 msec of the application of valid
power to the drive or optionally the negation of -RST.
If SCSI ID SEL0 is intended to be selected, the host must provide a
low impedance connection from -SEL(0) to -XTFALT or to ground, while
the ID is being latched, through an appropriate means.
-XTFAULT
This signal is intended to drive an LED to indicate and external
fault condition has occurred. This signal is held asserted following
the application of power or optionally the negation of -RST during
initialization while the SCSI ID is being read. This signal is not
supported but meets the requirements of negating the signal while the
ID is being read.
-SEL1
Bit 1 of the binary coded SCSI ID selection input. This signal has a
value of 0 when it is negated and a value of 2 when it is asserted
for the purpose of selection or arbitration.
This signal is latched within 250 msec of the application of valid
power to the drive or optionally the negation of -RST.
If SCSI ID SEL1 is intended to be selected, the host must provide a
low impedance connection from -SEL1 to -VUNIQ or to ground, while
the ID is being latched, through an appropriate means.
-VUNIQ
This signal is an open-collector output available for Vendor Unique
usage. This signal is not supported but meets the requirement of
negating the signal while the ID is being read.
-SEL2
Bit 2 of the binary coded SCSI ID selection input. This signal has a
value of 0 when it is negated and a value of 4 when it is asserted
for the purpose of selection or arbitration.
This signal is latched within 250 msec of the application of valid
power to the drive or optionally the negation of -RST.
If SCSI ID SEL2 is intended to be selected, the host must provide a
low impedance connection from -SEL2 to -SPSYNC or to ground, while
the ID is being latched, through an appropriate means.
-SPSYNC
This signal used to provide a spindle rotation synchronization re-
ference. The pins for all of the drives which are to be synchronized
must be connected together. The drives must be of like model to
operate. The spindles are synchronized using a "floating master"
concept, where the drives will synchronize to the first drive to
reach full speed. The synchronization tolerance is 1%.
This signal meets the requirement of negating the signal while the ID
is being read.
-SEL3
Bit 3 of the binary coded SCSI ID selection input. This signal has a
value of 0 when it is negated and a value of 8 when it is asserted
for the purpose of selection or arbitration.
This signal is latched within 250 msec of the application of valid
power to the drive or optionally the negation of -RST.
If SCSI ID SEL3 is intended to be selected, the host must provide a
low impedance connection from -SEL3 to -XTACTV or to ground, while
the ID is being latched, through an appropriate means.
-XTACTV
This signal is an open collector output intended to drive an LED to
indicate the device is active. This signal is negated while the SCSI
ID is being read.
-GROUND
This signal is connected to the drive's logic ground.
+5 Volts
This signal provides 5 volts of DC power to drive LEDs and is current
limited by a 120 ohm resistor.
-FAULT
The assertion of this signal will cause the drive to stop any media-
altering activity, which may result in the drive asserting -XTFALT or
-VUNIQ, or both. This signal is intended to be used as a power
failure warning and/or as a write protect input. This signal is not
supported by this drive.
Setting the Bus Termination
---------------------------
This drive provides on-board Alternative 2 active termination for the
SCSI bus. The termination resistors, which are contained in two
Single Inline Packs (SIPs) should be removed from the drive unless it
is a SCSI device at the physical end of the bus.
**********************************************************************
I N S T A L L
**********************************************************************
CONNER CFP-1060D/1060E/1060S/1060W PRODUCT MANUAL REV.A 1/94 501064
Notes on Installation
=====================
Installation direction
----------------------
horizontally vertically
+-----------------+ +--+ +--+
| | | +-----+ +-----+ |
| | | | | | | |
+-+-----------------+-+ | | | | | |
+---------------------+ | | | | | |
| | | | | |
| | | | | |
+---------------------+ | +-----+ +-----+ |
+-+-----------------+-+ +--+ +--+
| |
| |
+-----------------+
The drive will operate in all axis (6 directions).
Mounting the Drive
------------------
The drive is designed to be used in applications where the unit may
experience shock and vibrations at greater levels than larger and
heavier disk drives will tolerate.
The design features which allow greater shock tolerance are the use
of rugged heads and media, a dedicated landing zone, closed loop
servo positioning and specially designed motor and actuator
assemblies.
Eight side, or four bottom base mounting points are provided to the
customer. The drive is mounted using 6-32 UNC -2B X 0.16 maximum
insertion length screws. The system integrator should allow
ventilation to the drive to ensure reliable drive operation over the
operating temperature range. The drive may be mounted in any
orientation.
Cabling the Drive CFP-1060D
---------------------------
Connect the SCSI interface cable and the spindle synchronization
cable (when needed).
Cabling the Drive CFP-1060E
---------------------------
The drive is intended for direct backplane connection to the SCA
connector rather than through cabling.
Attaching Power to the Drive CFP-1060E
--------------------------------------
The drive is powered through the SCA connector and is intended for
direct backplane connection rather than through cabling.
SCSI Bus Cable CFP-1060S
--------------------------
The cable should meet the following guidelines, particulary with FAST
SCSI-2 systems:
- Do not route the data cable next to the drive PCB or any other high
frequency or large current switching signals. Improper drive opera-
tion can result from improper cable routing.
- Cable stubs should not exceed 0.1 meter (4 inches).
- There should be 0.3 meters (12 inches) of cable between drives.
- The total cable length should not exceed 6 meters (20 feet) and may
have to be reduced if a mixture of round and flat cable are used.
- Do not tightly bundle excess flat cable against each other since
this promotes cross coupling of signals on the cable. Use spacers
to maintain a minimum of 0.050 inches (1.27mm) gap between cable
runs.
- Do not clamp the cable tightly against a metal chassis since this
will degrade the signal. Use spacers or a non-flammable insulation
material to maintain a gap between the chassis and the cable.
SCSI Bus Cable CFP-1060W
------------------------
The cable should meet the following guidelines, particulary with FAST
SCSI-2 systems:
- Do not route the data cable next to the drive PCB or any other high
frequency or large current switching signals. Improper drive opera-
tion can result from improper cable routing.
- Cable stubs should not exceed 0.1 meter (4 inches).
- There should be 0.3 meters (12 inches) of cable between drives.
- The total cable length should not exceed 3 meters (10 feet) and may
have to be reduced if a mixture of round and flat cable are used.
- Do not tightly bundle excess flat cable against each other since
this promotes cross coupling of signals on the cable. Use spacers
to maintain a minimum of 0.050 inches (1.27mm) gap between cable
runs.
- Do not clamp the cable tightly against a metal chassis since this
will degrade the signal. Use spacers or a non-flammable insulation
material to maintain a gap between the chassis and the cable.
Attaching Power to the Drive CFP-1060S/W
----------------------------------------
The drive has a 4-pin DC power connector, J4 mounted on the PCB. The
recommended mating connector is AMP part number 1-480424-0 utilizing
AMP pins, part number 350078-4 or equivalent.
Mixing Wide and Narrow SCSI Devices on a SCSI Bus
-------------------------------------------------
It may sometimes be desirable to attach Narrow SCSI devices such as
tape backup devices or CDROMs to the same SCSI Host Bus Adapter be-
ing used to control Wide SCSI devices, such as the CFP-1060W.
Intermixing of both Wide and Narrow SCSI devices on the same bus
required special considerations:
- The Narrow SCSI devices must be placed at the physical end of the
bus.
- The high byte of the SCSI data bus must be terminated at the
transition adapter from the 34-pair wire to the 25-pair wire.
- The cable impedance of the 34-pair wire and the 25-pair wire should
be as closely matched as possible.
- The 68-pair cable with 30 AWG wire uses four wires to carry
TERMPWR, which must be joined to wire 26 of the 25-pair wire, if
terminator power has to be carried over the cable.
Wide to Narrow Adapter
----------------------
P Cable
+-----+ +----+
Ground | 1 +------+ T |
-DB (12) | 2 +------+ E |
Ground | 3 +------+ R |
-DB (13) | 4 +------+ M |
Ground | 5 +------+ I |
-DB (14) | 6 +------+ N |
Ground | 7 +------+ A |
-DB (15) | 8 +------+ T |
Ground | 9 +------+ O | A Cable
-DB (P1) | 10 +------+-R--+ +----+
Ground | 11 +-----------------+ 1 | Ground
-DB (0) | 12 +-----------------+ 2 | -DB (0)
Ground | 13 +-----------------+ 3 | Ground
|++ +-+ +++-+|
+++-+ | |++ +|
Ground | 32 +-----------------+ 22 | Ground
TERMPWR | 33 +----+ | 23 | RESERVED
TERMPWR | 34 +----+ | 24 | RESERVED
TERMPWR | 35 +----+ | 25 | Open
TERMPWR | 36 +----+------------+ 26 | TERMPWR
RESERVED | 37 +-----------------+ 27 | RESERVED
RESERVED | 38 +-----------------+ 28 | RESERVED
++ ++++ +-+++|
|+-+++| | +++|
-I/O | 60 +-----------------+ 50 | I/O
Ground | 61 +------+-T--+ +----+
-DB (8) | 62 +------+ E |
Ground | 63 +------+ R |
-DB (9) | 64 +------+ M |
Ground | 65 +------+ I |
-DB (10) | 66 +------+ N |
Ground | 67 +------+ A |
-DB (11) | 68 +------+ T |
+-----+ | O |
+-R--+
Spindle Synchronization
-----------------------
The spindle rotation of up to 35 drives may be synchronized together
by daisy chaining pin 1 to pin 1 and pin 2 to pin 2 on connector J3
or chaining pin 6 of the 2mm option header J5. The spindles are
synchronized using a "floating master" concept, where the drives will
synchronize to the first drive to reach full speed. The
synchronization tolerance is 1%.
Output Characteristics
----------------------
The output drivers for Data, Parity, REQ and ACK are optionally
active negation. When they are set for active negation, they have
three states: asserted, negated and high impedance. The remainder of
the signals have open collector (drain) outputs. The drive maintain a
high impedance state during power-on and power-off cycles. The driven
signals have the following output characteristics when measured at
the drive connector:
Active Negation Driver Output Signal Characteristics
Signal Characteristic | Value
----------------------------------+----------------------------
Signal Assertion | 0.1 VDC to 0.5 VDC at 48 mA
Minimum Driver Output Capability | 48 mA (sinking) at 0.5 VDC
Signal Negation | 2.0 VDC to 3.24 VDC at 7mA
| 3.0 VDC at 20 mA
Open Collector Driver Output Signal Characteristics
Signal Characteristic | Value
----------------------------------+----------------------------
Signal Assertion | 0.0 VDC to 0.5 VDC at 45 mA
Minimum Driver Output Capability | 48 mA (sinking) at 0.5 VDC
Signal Negation | 2.5 VDC to 5.25 VDC
Input Characteristics
---------------------
Signal Characteristic | Value
----------------------------------+---------------------------
Signal Assertion | 0.0 VDC to 0.8 VDC
Signal Negation | 2.0 VDC to 5.25 VDC
Input Load (low level) | -20 A to 0.0 mA at 0.5 VDC
Input Load (high level) | 0.0 mA to 20 A at 2.7 VDC
External Terminator Power CFP-1060E
-----------------------------------
The interface connector carries both power and ground so a separate
TERMPWR interface line is not provided.
Internal Termination CFP-1060E
------------------------------
This version of the drive has no on-board termination so the drive
must be externally terminated. Alternative 2 active termination is
recommended. Alternative 1 passive termination is not suitable for
this application.
Cable Requirements CFP-1060E
----------------------------
This version of the drive is designed to interface directly a mating
connector which is on a passive back plane or directly into a
motherboard. The same guidelines relative to impedance, stub length
and distance between stubs apply for SCSI bus signal reliability.
These guidelines may not be directly translated to a back plane
design so these design rules are to eb viewed with respect to the
intended purpose of controlling reflections and the propagation of
signals down the bus. Since the characteristics for PCB signal traces
are affected by trace width, proximity to ground, and trace routing,
careful review of the back plane design and analysis of signal
quality is highly recommended.
Connector Requirements CFP-1060E
--------------------------------
The drive's connector will mate with a AMP Champ 2-557103-2 vertical
receptacle or the AMP Champ 2-557101-1 right angle receptacle.
Single Connector Attachment (SCA) Signal Definitions
----------------------------------------------------
Power
Four +12 Volt signals provide the +12 volt power to the drive. The
current return for the +12 volt power is through the +12 Volt Ground
signals. The maximum current that can be provided to the drive
through the +12 Volt signal pins is 3 Amperes. The supply current and
return current must be distributed as evenly as possible among the
pins. The maximum current is while the drive motor is starting.
Three +5 Volt signal pins provide +5 volt power to the drive. The
current return for the +5 volt power is through the +5 Volt Ground
pins. It is expected that the +5 Volt Ground will also establish the
digital logic ground for the drive. The maximum current that can be
provided to the drive through the +5 Volt signal pins is 2 Amperes.
The supply current and return current must be distributed as evenly
as possible among the pins.
Spindle Sync CFP-1060E
----------------------
The spindle rotation of up to 35 drives may be synchronized together
by daisy chaining pin 1 to pin 1 and pin 2 to pin 2 of each drive
on connector J3. The spindles are synchronized using a "floating
master" concept, where the drives will synchronize to the first drive
to reach full speed. The synchronization tolerance is 1%.
LED Out CFP-1060E
-----------------
The LED out signal is driven by the drive when the drive is perform-
ing a SCSI operation. The LED out signal is designed to pull down the
cathode of an LED. The anode is attached to the proper +5 volt supply
through an appropriate current limiting resistor. The LED and the
current limiting resistor are external to the drive.
External Termination Power CFP-1060S
------------------------------------
Power to the on-board terminators is provided by the higher of the
voltage supplied at Pin #26, J2 or the voltage level at the 5 Volt
power input to the drive minus one diode drop. The diode prevents
back flow of current to the drive. Termination Power to external
terminators can be supplied by the drive through pin 26, J2. The
TERMPWR line can be disconnected from the drive by removing Jumper
E8.
Internal Termination CFP-1060S
------------------------------
This drive provides on-board Alternative 2 active termination for the
SCSI bus. The termination resistors, which are contained in two
Single Inline Packs (SIPs) should be removed from the drive unless it
is a SCSI device at a physical end of the bus.
Cable Requirements CFP-1060S
----------------------------
A 50 conductor cable no more than 6 meters (19.68 feet) cumulative
length with at least 28 AWG wire size and a characteristic impedance
of 70 to 100 ohms (84 ohms nominal) is required.
Connector Requirements CFP-1060S
--------------------------------
The connector on the drive is a 50-position header which consists of
2 rows of 25 male pins on 0.100 inch centers. The mating connector is
a SCSI-2 Non-shielded Alternative 1, A-cable connector.
External Terminator Power CFP-1060W
-----------------------------------
Power to the on-board terminators is provided by the higher of the
voltage supplied at Pin #17, 18, 51 & 52, J2 or the voltage level
at the 5 Volt power input to the drive minus 1 diode drop. The diode
prevents back flow of current to the drive. Termination Power to
external terminators can be supplied by the drive through Pin #17,
18, 51 & 52, J2. The TERMPWR line can be disconnected from the drive
by removing Jumper E8.
Internal Termination CFP-1060W
------------------------------
This drive provides on-board Alternative 2 active termination for the
SCSI bus. The termination resistors, which are contained in three
Single Inline PAcks (Sips) should be removed from the drive unless it
is a SCSI device at a physical end of the bus.
Cable Requirements CFP-1060W
----------------------------
A 68 conductor cable no more than 3 meters (9.84 feet) cumulative
length with at least 30 AWG wire size and a characteristic impedance
of 70 to 100 ohms (84 ohms nominal) is required.
Connector Requirements CFP-1060W
--------------------------------
The connector on the drive is a 68-pin. The mating connector is a
SCSI 3 Non-shielded P-cable connector.
**********************************************************************
F E A T U R E S
**********************************************************************
CONNER CFP-1060D/1060E/1060S/1060W PRODUCT MANUAL REV.A 1/94 501064
Overview of the Drives
----------------------
The CFP1060 series are a family of high performance 3.5-inch low-
profile (1.0 inch high) 1.06GB (formatted) disk drives. They all
offer 9.0 millisecond average seek time for Reading, 9.5 millisecond
seek time for Writing, with an average latency of only 5.55 ms. High
capacity is achieved by utilizing a zone density recording
technique using 9 recording zones at an areal density of 205 Mbits
per square inch. These drives feature high performance while
maintaining low power consumption to reduce power supply current and
system cooling requirements in disk arrays.
They are designed to operate on the Small Computer System Interface
(SCSI) and are SCSI-2/3 command compatible. The mechanical and major
electronic components are identical between the models and differ
only in the host interface implementation.
Firmware
--------
The drive's firmware can be considered in two parts. The first part
principally reside in the ROM for the 68HC16 background processor.
This processor is responsible for:
- starting the spindle motor and maintaining precise rotational speed
- controlling track following and actuator motion during seeking
- managing background R/W activity
- power management
- monitoring the overall health of the drive.
The interface processor's control microcode resides in both ROM and
RAM. The RAM portion of the microcode can be upgraded in the field
with using software. The interface processor firmware functions
include:
- reporting drive status and error conditions to the host
- manage operating parameters for the drive
- parsing the Command Descriptor Block and checking for illegal
fields
- converting the LBA to CHS and initiating read and write operations
to the background processor
- defect management
- serial port communications
Since parsing/decoding of commands and execution of the Read/Write
functions are handled by separate processors, command execution can
be overlapped in multiple initiator or Tagged Command Queuing
environments. Functions such as seek re-ordering and command coalesc-
ing can also be overlapped when the drive is operating with a host
environment capable of supporting Tagged Command Queuing.
Seek Time
---------
+----------------------------------+--------+
| | 1060 |
+----------------------------------+--------+
|Track-to-Track msec. typ. | 2 |
+----------------------------------+--------+
|Average msec. read | 9 |
| msec. write| 9.5 |
+----------------------------------+--------+
|Full Track msec. | 16 |
+----------------------------------+--------+
|Latency msec. avg. | 5.55 |
+----------------------------------+--------+
Error Correction
----------------
The drive uses a three way interleaved 144-bit Reed-Solomon code to
perform error correction and detection. For each 512-byte block,
the on-the-fly error correction polynominal is capable of correcting:
- one error burst of up to 22 bits in length
- two error bursts each up to 11 bits in length
ATTENTION!!!
============
The Adapter for the CFP-1060 80pin SCA Model to 50pin SCSI exist with
or without BRAZED terminators!
Drive Motor and Spindle
-----------------------
A brushless DC direct-drive motor assembly is mounted on the drive's
base. The motor rotates the drive's spindle at 5400 RPM. The motor/
spindle assembly is dynamically balanced to provide minimal
mechanical runout to the disks. A dynamic brake is used to provide a
fast stop to the spindle motor and return the heads to the landing
zone when power is removed.
Head Positioning Mechanism
--------------------------
The read/write heads are supported by a mechanism coupled to a
rotary voice coil actuator.
Buffer Management
-----------------
The 512K byte buffer is treated by the queuing code as two 240KB
buffers (F0H sectors) to maximize coalescing. Look ahead reads are
performed by the drive when there are no commands in the queue
awaiting execution. Sequential read or write commands are coalesced
into single commands to the background processor.