Hard Drive: QUANTUM: PRODRIVE 120 S 120MB 3.5"/HH SCSI2 SE
P R O D R I V E 1 2 0 S QUANTUM
NO MORE PRODUCED Native| Translation
------+-----+-----+-----
Form 3.5"/HH Cylinders 1123| | |
Capacity form/unform 120/ MB Heads 5| | |
Seek time / track 15.0/ 4.0 ms Sector/track | | |
Controller SCSI2 SINGLE-ENDED Precompensation
Cache/Buffer 56 KB LOOK-AHEAD Landing Zone
Data transfer rate 1.250 MB/S int Bytes/Sector 512
4.000 MB/S ext SYNC
Recording method RLL 1/7 operating | non-operating
-------------+--------------
Supply voltage 5/12 V Temperature *C 4 50 | -40 65
Power: sleep W Humidity % 8 85 | 5 95
standby W Altitude km -0.061 3.048| -0.061 12.192
idle 11.4 W Shock g 10 | 60
seek W Rotation RPM 3605
read/write W Acoustic dBA 40
spin-up W ECC Bit 48
MTBF h 50000
Warranty Month 24
Lift/Lock/Park YES Certificates CSA,FCC,SDA,TUV,UL478,VDE
Layout
QUANTUM PRODRIVE 120/170/210S PRODUCT MANUAL 1990
+----------------------------------------------------------+ | ++ A2 A1 A0 | | |+-+-+-++-+-+-+ RP12++|XX | ++-+-+-++-+-+-+ |||XX | SS EP WS |||XX | ++|XX | RP11++|XX SCSI | Terminators|||XX J1 | |||.X | ++|XX | RP10++|XX | |||XX | |||XX | ++|XX | |XX | | | |XX | |XX J3 +----------------------------------------------------------+
Jumpers
QUANTUM PRODRIVE 120/170/210S PRODUCT MANUAL 1990
Jumper Setting
==============
x = Jumper set at factory
Jumper Options -------------- +---------+-----------+-------------------------------------------+ | Jumper | Setting | Description | +---------+-----------+-------------------------------------------+ | SS | OPEN x | Self-seek test disabled | | | CLOSED | Self-seek test enabled | +---------+-----------+-------------------------------------------+ | EP | CLOSED x | Parity checking enabled | | | OPEN | Parity checking disabled | +---------+-----------+-------------------------------------------+ | WS | OPEN x | Wait/Spin disabled | | | CLOSED | Wait/Spin enabled | +---------+-----------+-------------------------------------------+ | A2 | CLOSED x | A0, A1, and A2 are used in combination to | | A1 | CLOSED x | determine the drive's SCSI ID. The default| | A0 | OPEN x | value is six. | +---------+-----------+-------------------------------------------+
SS Self-Seek Jumper
--------------------
Quantum ships the ProDrive 120/170/210S hard disk drive from the
factory with no Self-Seek (SS) jumper installed- that is, with the
self-seek test disabled. To enable the Self-Seek test, install a
the SS jumper.
When the SS jumper is installed, the drive initiates a self-seek
test. During the self-seek test, the drive can execute any command
that does not require a disk access. When the self-seek test begins,
the drive-activity LED (Light-Emitting Diode) lights and remains on
as long as the test proceeds without error. The drive executes seeks
in butterfly pattern. Each butterfly seek pattern starts and ends
with a seek to cylinder 256, where the drive verifies the sector ID.
If the vertification detects a seek error, the self-seek test
terminates immediately and the LED flashes continously until the SS
jumper is removed. When the SS jumper is removed, the drive completes
the seek pattern in progress and turns off the LED. The drive
attempts no error recovery and is ready to execute any command.
EP Enable Parity Jumper
------------------------
The Enable Parity (EP) jumper controls parity checking across the
SCSI bus. Installing the EP jumper enables parity checking. Quantum
ships ProDrive 120/170/210S hard disk drive from the factory with the
EP jumper installed. Removing the EP jumper disables parity checking.
The drive still generates parity, but does not perform parity check-
ing. When the jumper is changed, the new setting takes effect at the
next power on.
WS Wait/Spin Jumper
--------------------
The Wait/Spin (WS) jumper controls the Wait/Spin option. Quantum
ships the ProDrive 120/170/210S hard disk drive from the factory with
no WS jumper installed - that is, with the Wait/spin option disabled.
With the Wait/Spin option disabled at power-on, the motor starts
spinning automatically and the drive is ready within 20 seconds. To
enable Wait/Spin option, install the WS jumper.
With the WS jumper installed at power-on, the motor does not start to
spin until the host sends a START/STOP UNIT command. This delay
permits power sequencing, preventing the system power supply from be-
ing overloaded by simultaneous demands for peak start current from
multiple devices. Once the drive receives the START/STOP UNIT
command, it is ready within 20 seconds.
A2/A1/A0 SCSI-Bus Device Identification
----------------------------------------
The SCSI bus can support up to eight devices, including the host
system. The identification number of each device determines its
priority level. Ptior to installing the ProDrive 120/170/210S hard
disk drive, you must choose its SCSI-device identification number.
Jumpers installed across three pair of jumper pins - A2, A1 and A0 -
in various combinations permit the assignment of the drive's
identification number. These three pairs of jumper together comprise
a 3-bit binary number, in which A2 is the most-significant bit and A0
is the least significant bit. With a jumper installed, a pair of pins
represents a 1; with no jumper installed a 0. Thus, with jumpers
installed across all of the pins, the device identification is 7;
with no jumpers installed, the device identification is 0.
Quantum ships the ProDrive 120/170/210S hard disk drive from the
factory with the A2 and A1 jumpers installed - that is, the drive's
default SCSI-device identification is 6. If the jumpers are changed,
the new device identification takes effect at the next power on.
+----------+-----------------------+ | SCSI ID | Jumpers | | | A2 | A1 | A0 | +----------+-------+-------+-------+ | 0 | OPEN | OPEN | OPEN | | 1 | OPEN | OPEN | CLOSED| | 2 | OPEN | CLOSED| OPEN | | 3 | OPEN | CLOSED| CLOSED| | 4 | CLOSED| OPEN | OPEN | | 5 | CLOSED| OPEN | CLOSED| |x 6 | CLOSED| CLOSED| OPEN | | 7 | CLOSED| CLOSED| CLOSED| +----------+-------+-------+-------+
The SCSI bus supports up to eigth devices, including the host system.
A device's identification number determines its priority and must be
unique in the system.
Driver Terminators
------------------
On the ProDrive 120/170/210S hard disk drive, three resistor networks
installed in sockets on the PCB terminate the SCSI bus. Quantum ships
the ProDrive 120/170/210S hard disk drive from the factory with the
terminating resistors installed. On a SCSI bus, only the first device
- usually the host - and the last device can contain terminating
resistors. When installing the ProDrive 120/170/210S hard disk drive
in any other position on the bus, remove the terminating resistors.
Install
QUANTUM PRODRIVE 120/170/210S PRODUCT MANUAL 1990
Notes on Installation
=====================
Orientation
The ProDrive 120/170/210S can be mounted in ANY orientation.
#6-32 UNC screws are recommended for mounting.
Note
With the exception of the faceplate and integral mounting bracket,
clearance between the drive and any other surface must be a minimum
of 0.10 inch.
CAUTION: The PCB is very close to the mounting holes. Do not exceed
the specified length for the mounting screws. The specified screw
length allows full use of the mounting-hole threads, while avoiding
damaging or placing unwanted stress on the PCB. To avoid stripping
the mounting-hole threads, the maximum torque applied to the screws
must not exceed 8 inch-pounds.
Ventilation
-----------
The ProDrive 120/170/210S hard disk drive operates without a cooling
fan, provided the ambient air temperature does not exceed 122*F
(50*C). Any user-designed cabinet should provide adequate air
circulation to prevent the maximum temperature from being exceeded.
J3 DC Power Connector --------------------- The drive's DC power connector (J3) is a 4-pin Ranoda Electronics Connector (06300010-04-1), or equivalent, mounted on the back edge of the Printed-Circuit Board (PCB). +----------+ |4 3 2 1| +----------+
Recommended connectors and their numbers:
4-pin connector: AMP P/N 1-480424-0 or equivalent
Loose-piece contacts: AMP P/N 60619-4 or equivalent
Strip contacts: AMP P/N 61117-4 or equivalent
pin 1 +12 VDC pin 2 +12 Volts Return (Ground) pin 3 + 5 Volts Return (Ground) pin 4 + 5 VDC
Note:
Labels indicate the pin numbers on the connector. Pins 2 and 3 are
connected on the drive.
J1 SCSI Connector
------------------
The SCSI cable connector (J1) on the ProDrive 120/170/210S hard disk
drive is a 50-pin universal header. A key slot on the header prevents
the incorrect installation of the header connector on the SCSI cable.
To prevent the header connector on the SCSI cable from being plugged
in backwards, use only a keyed header connector.
Recommended header connectors and their part numbers:
50-pin connector (without strain relief) AMP P/N 1-746195-2 or
equivalent
50-pin connector (with strain relief) AMP P/N 1-499508-2 or
equivalent
Faceplate LED Operation
-----------------------
Whenever the drive initiates the execution of a command, a green LED
on the faceplate lights, and remains lit until the execution of the
command is complete, disconnectec, or aborted.
Air Filtration
--------------
ProDrive Series hard disk drives are Winchster-type drives. The heads
fly very close to the media surface, with a nominal flying height of
8 microinches. Therefore, it is essential that the air circulating
within the drive be kept free of paticles. Quantum assembles the
drive in a Class-100, purified air environment, then seals the drive
with a metal cover. When the drive is in use, the rotation of the
disks forces the air inside the drive through an internal filter.
SCSI Electrical Characteristics ------------------------------- All signals are asserted, or true, at the low level, and use open- collector drivers terminated at each end of the cable with 220 ohms to +5 volts (nominal) and 330 ohms to ground. On the ProDrive 120/ 170/210S hard disk drive, resistor networks in sockets terminate the lines.
Note
To connect multiple devices on a SCSI bus, remove the terminating
resistors on all but the two devices at the cable ends.
Each signal driven by the ProDrive 120/170/210S hard disk drive has
the following output characteristics:
- True (signal assertion) = 0.0 to 0.5 volts DC at 48 milliamperes
(maximum)
- False (signal deassertion) = 2.5 to 5.25 volts DC
Each signal from the host to the ProDrive 120/170/210S hard disk
drive must have the following characteristics, as measured at the
drive:
- True (signal assertion) = 0.0 to 0.8 volts DC
- False (signal deassertion) = 2.5 to 5.25 volts DC
The ProDrive 120/170/210S hard disk drive uses a standard 50-pin
SCSI-bus connector (J1) - providing a single-ended, non shielded
connection. The maximum cable length is 20 ft (6 meters).
Terminator Power
----------------
The ProDrive 120/170/210S hard disk drive supplies power to the
terminating resistor through a Schottky diode and a 1-amp fuse that
has the following characteristics:
VTERM = 4.25 volts DC to 5.25 volts DC
800 milliamperes minimum source drive capability
1.0 milliamperes maximum sink capability, except when
providing power to an internal terminator
1.0 amp current limiting (fuse)
Features
QUANTUM PRODRIVE 120/170/210S PRODUCT MANUAL 1990
Indroduction
------------
The ProDrive 120/170/210S intelligent hard disk drive features the
Small Computer System Interface (SCSI) controller.
The ProDrive 120/170/210S hard disk drive conforms to the proposed
ANSI X3T9.2/86-109 (SCSI-2) specification.
NOTE
As defined by Quantum a megabyte is 1,000,000 bytes.
Reliability
-----------
Mean Time Between Failures (MTBF): 50,000 Power On Hours (POH),
Preventive Maintenance (PM): Not required
Mean Time To Repair (MTTR): 30 minutes
Start/Stop: 10,000 cycles (minimum)
Seek Time
---------
----------------------------------+--------+
Track-to-Track msec. typ. | 4 |
Average msec. typ. | <15 |
Third-Stroke Seek msec. max. | 15 |
Full Stroke msec. typ. | 27 |
Latency msec. avg. | 8.3 |
----------------------------------+--------+
Media Quality
-------------
The ProDrive 120/170/210S hard disk drive features automatic defect
management, making the manual identification of defects unneccessary.
Defect management is completely transparent to the user.
Error Rates:
A data error occurs whenever the drive fails to read or write a
sector of data correctly. An error detected when reading may be
correctable or uncorrectable. When a data error occurs, if the data
can be transferred successfully using the drive's default error-
recovery algorithm, the data error is recoverable; otherwise, it is
unrecoverable. The miscorrection rate indicate the frequency with
which the drive transfers incorrect read data, due to faulty ECC
correction using the default error-recovery algoritm.
If a data error recurs on each of eight retries, it is a read error;
otherwise it is a soft error. Hard errors generally occur due to
media defects.
Error Correcting Code (ECC)
---------------------------
6 bytes. Contains the error-correction bytes used to maintain data
integrity when the data fiel is read.
Acoustics
---------
Idle Mode: 45 dBA maximum, at 1 foot in any direction
Track Format
------------
The ProDrive 120S, 170S, and 210S hard disk drives all use the same
sector format. The principal differences between the drives are the
number of data zones, and tracks and sectors available for use in
each zone. The ProDrive 120S and 170S hard disk drives have two
zones, with 48 sectors per track in the outer zone and 36 sectors per
track in the inner zone. The ProDrive 210S hard disk drive has eight
zones, with 39 to 59 sectors per track, depending on the location
of the zone on the disk. Two sectors per cylinder are reserved as
spares for defect management. Thus, the 120S has 238 user sectors per
cylinder in the outer zone and 178 in the inner zone. The 170S has
334 user sectors per cylinder in the outer zone and 250 in the inner
zone. On the 210S, the number of sectors per cylinder ranges from 411
in the outermost zone to 271 in the inner zone.
Automatic Actuator Lock
-----------------------
To ensure data integrity and prevent damage during shipment, all
ProDrive Series hard disk drives feature a dedicated landing zone and
Quantum's patented AIRLOCK. AIRLOCK, locks the headstack in the
landing zone. It consists of an airvane mounted near the perimeter of
the disk stack and a locking arm that restrains the actuator arm
assembly when the disks are not rotating.
When DC power is applied to the motor and the disk stack rotates, the
rotation generates an airflow on the surface of the disk. As the flow
of air across the airvane increases with disk ratation, the locking
arm pivots away from the actuator arm, enabling the headstack to move
out of the landing zone. When DC power is removed from the motor, a
return mechanism automatically pulls the actuator into the landing
zone, where the AIRLOCK holds it in place.
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