P R O D R I V E L P S 3 4 0 S QUANTUM
Native| Translation
------+-----+-----+-----
Form 3.5"/SLIMLINE Cylinders 2337| | |
Capacity form/unform 343/ MB Heads 4| | |
Seek time / track 14.0/ 5.0 ms Sector/track | | |
Controller SCSI2 SINGLE-ENDED Precompensation
Cache/Buffer 96 KB SEGMENTED Landing Zone
Data transfer rate 2.500 MB/S int Bytes/Sector 512
10.000 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 1.0 W Humidity % 8 85 | 5 95
standby 1.0 W Altitude km -0.060 3.000| -0.060 12.000
idle 3.3 W Shock g 10 | 70
seek 5.5 W Rotation RPM 3600
read/write 3.9 W Acoustic dBA 34
spin-up W ECC Bit 96,REED SOLOMON
MTBF h 300000
Warranty Month
Lift/Lock/Park YES Certificates CSA,FCC,IEC380,TUV,UL1950,VDE
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L A Y O U T
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QUANTUM PRODRIVE LPS 340S PRELIMINARY PRODUCT MANUAL 81-104565-01
+---------------------------------------------------------+
| +-+ HDA J13 *** +-+-+-+ ++ |XX
+-| | Connector *** +-+-+-+ || |XX
+-| | on Cable A0 A1 A2 || |XX
| +-+ || |XX I
| || |XX N
| ++ |XX T
| Terminating ++ |XX E
| Resistor Packs || |.X R
| || |XX F
| || |XX A
| || |XX C
| ++ |XX E
| |XX
| |X1
|++LED |XX J11
|++J12 |XX Power
+---------------------------------------------------------+ 1
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J U M P E R S
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QUANTUM PRODRIVE LPS 340S PRILIMINARY PRODUCT MANUAL 81-104565-01
Jumper Setting
==============
x = Jumper set at factory
On the drive printed circuit board assembly (PCBA), there are three
pairs of jumper pins that allow you set the drive's SCSI address.
When you change a jumper setting, the new setting is in effect when
the drive is next powered on.
Used in combination, the jumper setting accross pins A2, A1, and A0
determine the ProDrive LPS 340S hard disk drive's SCSI-bus
device identification (SCSI ID). By default, Quantum configures the
drive with a SCSI ID of six - that is, with jumpers installed across
the pins labeld A2 and A1 and no jumper installed across the pins
labeld A0.
Default Settings for Address Jumpers
------------------------------------
+---------+-------------------+-----------------------------+
|Jumper | Default Setting | Description |
+---------+-------------------+-----------------------------+
| A2 | ON | A2, A1, and A0 are used in |
| A1 | ON | combination to determine the|
| A0 | OFF | drive's SCSI ID. |
| | | The default SCSI ID is 6. |
+---------+-------------------+-----------------------------+
Note: ON indicates a jumper is installed.
OFF indicates that no jumper is installed.
SCSI ID Jumper Settings
-----------------------
+--------------------+----------+
| Jumper settings | SCSI ID |
+------+------+------+ |
| A2 | A1 | A0 | |
+------+------+------+----------+
| OFF | OFF | OFF | 0 |
+------+------+------+----------+
| OFF | OFF | ON | 1 |
+------+------+------+----------+
| OFF | ON | OFF | 2 |
+------+------+------+----------+
| OFF | ON | ON | 3 |
+------+------+------+----------+
| ON | OFF | OFF | 4 |
+------+------+------+----------+
| ON | OFF | ON | 5 |
+------+------+------+----------+
|x ON | ON | OFF | 6 |
+------+------+------+----------+
| ON | ON | ON | 7 |
+------+------+------+----------+
The SCSI bus supports up to eight devices, including the host system.
A device's identification number determines its priority and must
unique in the system.
DC Power and pin connector assignments
--------------------------------------
+------------+ pin 1 +12 VDC
| 4 3 2 1 | pin 2 +12 V Return (Ground)
+------------+ pin 3 + 5 V Return (Ground)
pin 4 + 5 VDC
Note: Labels indicate the pin numbers on the connector. Pins 2 and 3
are connected together on the drive.
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I N S T A L L
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QUANTUM PRODRIVE LPS 340S PRELIMINARY PRODUCT MANUAL 81-104565-01
Notes on Installation
=====================
Installation direction
----------------------
horizontally vertically
+-----------------+ +--+ +--+
| | | +-----+ +-----+ |
| | | | | | | |
+-+-----------------+-+ | | | | | |
+---------------------+ | | | | | |
| | | | | |
| | | | | |
+---------------------+ | +-----+ +-----+ |
+-+-----------------+-+ +--+ +--+
| |
| |
+-----------------+
The drive will operate in all axis (6 directions).
Orientation
-----------
The mounting holes on the ProDrive LPS 340S hard disk drive allow the
drive to be mounted in any orientation.
Mounting
--------
For mounting, #6-32 UNC screws are recommended. To avoid stripping
the mounting-hole threads, the maximum torque applied to the screws
must not exceed 8 inch-pounds.
Terminating Resistors
---------------------
At the factory, Quantum installs two resistor networks in sockets on
the drive PCBA to terminate the SCSI bus. Only the first device -
usually the host - and the last device on a SCSI bus should contain
terminating resistors. When installing the ProDrive LPS 340S hard
disk drive in any other position on the SCSI bus, remove the
terminating resistors.
Clearance
---------
The printed-circuit board assembly (PCBA) is very close to the
mounting holes. Clearance from the drive to any other surface -
except mounting surfaces - must be 1.25 millimeters (0.05 inches)
minimum. The specified screw length allows full use of the mounting-
hole threads, while avoiding damaging or placing unwanted stress on
the PCBA.
CAUTION
The printed-circuit board (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 LPS 340S hard disk drive operates without a cooling fan,
provided the ambient air temperature does not exceed 122*F (50*C).
Cable Connector
---------------
The ProDrive LPS 340S has a combination DC/SCSI cable connector. 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 beeing plugged in backwards, use only a keyed
header connector.
The drive's combination DC/SCSI connector part number is Dupont
90910-001,2 in 1 SMT.
+----------------------------------------+
| |
| |
| +-----J11-Section-B----------Section-A |
| |+-------------------------++4-3-2-1+| |
| ||oooooooooooooooooooooooo1||O O O O|| |
| ||ooooooooooooooooooooooooo|| || |
| |+-------------------------++-------+| |
+-+------------------------------------+-+
Recommended header connector and strain relief:
50-pin connector base part AMP P/N 1-746195-2 or equivalent
50-pin connector strain relief AMP P/N 499508-2 or equivalent
Recommended mating connector and their part numbers:
4-pin connector (J11 section A) AMP P/N 1-480424-0 or equivalent
Loose-piece contacts AMP P/N 61173-4 or equivalent
Strip contacts AMP P/N 350078-4 or equivalent
-------------------+
--+ +------------+| pin 1 +12 VDC
1| | 4 3 2 1 || pin 2 +12 Volts Return
-+ +------------+| pin 3 + 5 Volts Return
------------------+ pin 4 + 5 VDC
Labels indicate the pin numbers on the connector. Pin 2 and 3 are
connected together on the drive.
LED Connector (J12)
-------------------
The LED connector my be used to connect an external LED for the pur-
pose of monitoring drive activity. A 220-ohm resistor is connected in
series from the +LED pin to +5 volts. The -LED pin is connected to a
switching transistor on the drive that turns on and lights the LED
when the disk is performing a read or write operation. When no read
or write operation is taking place, the transistor turns off and the
LED is extinguished.
+---------------------+--------------------------------+
| J12 Pins | Mating Connectir Type and Part |
|Pin Number| Function | Number (or equivalent) |
+----------+----------+--------------------------------+
| 1 | -LED | Two-position housing: |
+----------+----------+ Molex P/N 51021-0200 |
| 2 | +LED | Loose-piece contacts: |
| | | Molex P/N 50058-8100 |
+----------+----------+--------------------------------+
Power Sequencing
----------------
You can apply the power in any order or manner, or short or open
either the power or power-return line with no loss of data or damage
to the disk drive. However, data may be lost in the sector being
written at the time of power loss. The drive can withstand transient
voltages of +10% to -100% from nominal while powering up or down.
Head/Disk Assembly
------------------
The head/disk assembly (HDA) contains the mechanical subassemblies of
the drive, which are sealed under a metal cover. The HDA consists of
the disk stack assembly, rotary positioner assembly, headstack
assembly, actuator latch assembly, and base casting which includes
the DC motor assembly. Assembly of the HDA takes place in a Class-
100 clean room. These subassemblies are not adjustable or field-
repairable.
Caution: To ensure that the air in the HDA remains free of contamina-
tion, never remove or adjust its cover and seals. Tampering with the
HDA voids your warranty.
DC Motor Assembly
-----------------
Integral with the base casting, the DC motor assembly is a rotating-
shaft, brushless DC spindle motor that drives the counter-clockwise
rotation of the disks.
Disk Caching
------------
The ProDrive LPS 340S hard disk drive incorporates DisCache
a 96K disk cache, to enhance drive performance. This integrated
feature can significantly improve system throughput. Read and write
caching can be enabled or disabled using the MODE SELECT command.
(The upper 32K is used for firmware).
Acoustics
---------
+-----------------+-----------------+----------+
| Operating Mode | Measured Noise | Distance |
+-----------------+-----------------+----------+
| Idle On Track | 32 dBA (mean) | 39.3 in |
| | 37 dBA (maximum)| (1 m) |
+-----------------+-----------------+----------+
| Seeking (Random)| 36 dBA (mean) | 39.3 in |
| | 41 dBA (maximum)| (1 m) |
+-----------------+-----------------+----------+
Track and Cylinder Skewing
--------------------------
+-------+---------+------+---------+
| Zone |Sectors |Track | Cylinder|
| Number|Per Track|Skew | Skew |
| | |Wedge | Wedge |
+-------+---------+------+---------+
| 15 | 52 | 28 | 32 |
+-------+---------+------+---------+
| 14 | 52 | 28 | 32 |
+-------+---------+------+---------+
| 13 | 55 | 28 | 32 |
+-------+---------+------+---------+
| 12 | 58 | 28 | 32 |
+-------+---------+------+---------+
| 11 | 60 | 28 | 32 |
+-------+---------+------+---------+
| 10 | 62 | 28 | 32 |
+-------+---------+------+---------+
| 09 | 65 | 28 | 32 |
+-------+---------+------+---------+
| 08 | 68 | 28 | 32 |
+-------+---------+------+---------+
| 07 | 70 | 28 | 32 |
+-------+---------+------+---------+
| 06 | 73 | 28 | 32 |
+-------+---------+------+---------+
| 05 | 78 | 28 | 32 |
+-------+---------+------+---------+
| 04 | 82 | 28 | 32 |
+-------+---------+------+---------+
| 03 | 85 | 28 | 32 |
+-------+---------+------+---------+
| 02 | 85 | 28 | 32 |
+-------+---------+------+---------+
| 01 | 89 | 28 | 32 |
+-------+---------+------+---------+
| 00 | 91 | 28 | 32 |
+-------+---------+------+---------+
Automatic Actuator Lock
-----------------------
To ensure data integrity and prevent damage during shipment, the
drive uses a dedicated landing zone and Quantum's patented AIRLOCK.
The AIRLOCK holds the headstack in the landing zone whenever the
disks are not rotating. It consists of an air vane mounted near the
perimeter of the disk stack and a locking arm that restrains the
actuator arm assembly.
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 air vane increases with disk rotation, the locking
arm pivots away from the actuator arm, enabling the headstack to move
out of the landing. When DC power is removed from the motor, an
electric return mechanism automatically pulls the actuator into the
landing zone, where the AIRLOCK holds it in place.
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F E A T U R E S
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QUANTUM PRODRIVE LPS 340S PRELIMINARY PRODUCT MANUAL 81-104565-01
Product Overview
----------------
Quantum's ProDrive LPS 340S hard disk drives are a part of a family
of high-performance, 1-inch-high, hard disk drives manufactured to
meet the highest product quality standards. ProDrive LPS hard disk
drives use nonremovable, 3 -inch hard disks.
The ProDrive LPS 340S hard disk drives feature an embedded SCSI drive
controller and use SCSI commands to optimize system performance.
The drive manages media defects and error recovery internally, so
these operations are transparent to the user.
The innovative design of ProDrive LPS 340S hard disk drives enables
Quantum to produce a family of low-cost, high-reliability drives.
Formatted Capacity
------------------
At the factory, the ProDrive LPS 340S receives a low-level
format that creates the actual tracks and sectors on the drive.
Reliability
-----------
Mean Time Between Failures (MTBF):
300,000 Power On Hours (POH), typical usage
The Quantum MTBF numbers represent Bell-Core MTBF predictions at
ambient operating conditions and represent the minimum MTBF that
Quantum or a customer would expect from the drive. Quantum's ongoing
reliability testing and field return data has historically confirmed
an actual MTBF of twice the Bell-Core prediction.
Preventive Maintenance (PM):
Not required
Mean Time To Repair (MTTR):
30 minutes
Start/Stop:
20,000 cycles (minimum)
Component Life:
5 Years
Error Detection and Correction
------------------------------
As disk drive areal densities increase, obtaining extremely low error
rates requires a new generation of sophisticated error-correction
codes. Quantum ProDrive LPS 340S series hard disk drives implement
112-bit single- and double-burst Reed-Solomon error-correction
techniques to reduce the uncorrectable read error rate to less than
one bit in 1 x 10(14) bits read.
When errors occurs, an automatic retry and a more rigorous double-
burst correction algorithm enable the correction of any sector with
two bursts of three incorrect bytes each or up to six multiple
random one-byte burst errors. In addition to these advanced error
correction capabilities, the drive's additional cross-checking code
and algorithm double checks the main ECC correction to greatly re-
duce the probability of miscorrection.
The drive's ECC can correct up to 48 bits of multiple random errors,
provided that the incorrect bytes follow the guidelines for
correctablle double burst errors. Up to 24 bits of multiple random
errors can be corrected on-the-fly if only one byte per interleave
contains an error. If more than two bytes in any one interleave are
in error, the sector cannot be corrected.
Defect Management
-----------------
The ProDrive LPS 340S allocates one sector per cylinder as a spare.
In the factory, the media is scanned for defects. If a sector on a
cylinder is found to be defective, the address of the sector is
added to the drive's defect list. Sectors located physically
subsequent to the defective sector are assigned logical block
addresses such that a sequential ordering of logical blocks results.
This inline sparing technique is employed in an attempt to eliminate
slow data transfer that would result from a single defective sector
on a cylinder.
If more than one sector is found defective on a cylinder, the inline
sparing technique is applied only to the first sector. The remaining
defective sectors are replaced with the nearest available spare
sectors on nearby cylinders. Such an assignment of additional
replacement sectors from nearby sectors rather than having a central
pool of spare sectors is an attempt to minimize the motion of the
actuator and head that otherwise would be needed to find a replace-
ment sector. The result is minimal reduction of data throughput.
Seek Time
---------
+----------------------------------+--------+
| |LPS 340S|
+----------------------------------+--------+
|Track-to-Track msec. typ. | 5 |
+----------------------------------+--------+
|Average msec. typ. | 12 |
| msec. max. | 28 |
+----------------------------------+--------+
|Latency msec. avg. | 8.33 |
+----------------------------------+--------+