1 9 4 3 4 6 COMPAQ NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 3.5"/SLIMLINE Cylinders 2740| 944| | Capacity form/unform 271/ MB Heads 2| 14| | Seek time / track 13.0/ 4.0 ms Sector/track | 40| | Controller IDE / ATA2 FAST/ENHA Precompensation Cache/Buffer 128 KB Landing Zone Data transfer rate 4.000 MB/S int Bytes/Sector 512 13.000 MB/S ext DMA Recording method RLL 1/7 operating | non-operating -------------+-------------- Supply voltage 5/12 V Temperature *C 55 | -40 65 Power: sleep 0.8 W Humidity % 5 85 | 5 95 standby 0.8 W Altitude km -0.650 3.000| -0.650 12.000 idle 3.2 W Shock g 10 | 60 seek 6.0 W Rotation RPM 4500 read/write 5.2 W Acoustic dBA 33 spin-up 13.1 W ECC Bit 112,REED SOLOMON MTBF h 150000 Warranty Month 12 Lift/Lock/Park YES Certificates CSA,FCC,TUV,UL1950,VDE ********************************************************************** L A Y O U T ********************************************************************** QUANTUM PRODRIVE LPS 270/540AT PRODUCT MANUAL 81-104074-01 +---------------------------------------------------------+ | JP2 +-+-+-+JP1+-+-+-+ |XX | +-+ +-+-+-+ +-+-+-+ |XX | | | PO SP DS CS |XX | | |HDA |XX | +-+ |XX AT-Bus | |.X J1 C | |XX | |XX | |XX | |XX | |X1 | | | |XX Power | |XX1 J1 B | |xx | +-+LED |XX Power | +-+J2 |XX J1 A +---------------------------------------------------------+ 1 ********************************************************************** J U M P E R S ********************************************************************** QUANTUM PRODRIVE LPS 270/540AT PRODUCT MANUAL 81-104074-01 Jumper setting ============== x = Jumper set at factory JP1 Drive Select/Cable Select/Slave Present -------------------------------------------- +------+------+------+--------------------------------------------+ |DS |CS |SP | Description | +------+------+------+--------------------------------------------+ |OPEN |OPEN |OPEN | Slave Drive | | | | | Compatible with drive using PDIAG- line to | | | | | handle Master/Slave communications | +------+------+------+--------------------------------------------+ |OPEN |OPEN |CLOSED| Slave Drive | | | | | The PDIAG- and DASP- lines are not driven | +------+------+------+--------------------------------------------+ x|CLOSED|OPEN |OPEN | Master Drive | | | | | Uses DASP- to check for the presence of a | | | | | Slave | +------+------+------+--------------------------------------------+ |CLOSED|OPEN |CLOSED| Master Drive | | | | | Uses the SP jumper to determine whether a | | | | | Slave is present, without checking PDIAG- | | | | | or DASP- | +------+------+------+--------------------------------------------+ |OPEN |CLOSED| X | Slave or Master Drive, depending on the | | | | | state of the Quantum Cable Select signal | | | | | (pin 28) at the IDE-bus interface | | | | | connector. | | | | | If the signal state is set to OPEN | | | | | (grounded) then the drive is configured as | | | | | if DS were CLOSED, described above. If the | | | | | Cable Select signal is set to CLOSED | | | | | (high), then the drive is configured as if | | | | | DS were OPEN, described above. | +------+------+------+--------------------------------------------+ X indicates the jumper setting does not matter. Caution: The CS and DS jumpers should never be installed at the same time. DS Drive Select Jumper ----------------------- You can also daisy-chain two drives on the IDE-bus Interface as by using the DS (Drive Select) jumpers. If the DS jumper is installed, the CS jumper must be removed (OPEN). To configure a drive as the Master (Drive 0), a jumper must be installed at the DS pins. To configure a drive as the Slave (Drive 1), the DS jumper must be removed. NOTE The order in which drives are connected in a daisy chain has no significance. CS Cable Select Jumper ----------------------- When two ProDrive LPS 270/540AT hard disk drives are daisy-chained together, they can be configured as Master and Slave by using the CS jumper or by using the DS jumper - BUT NOT BOTH at the same time. To configure the two drives using the CS jumper, set the CS jumper to CLOSED and the DS jumper to OPEN on each drive. Once you install the CS jumper, the drive is configured as a Master or Slave by state of the Cable Select signal, which is pin 28 at the IDE-bus interface connector. Quantum uses pin 28 as a vendor-specific pin; it does NOT conform to the function normally allocated for this pin according to the ATA (AT Attachment). Pin 28 is grounded - that is, set to OPEN - on the cable coming from the host. This configures the first drive as Master. Then, pin 28 on the connector at the second drive should be made an open circuit by a cut in signal line 28 in the cable from the first drive, so it becomes high - that is, set to CLOSED - due to a pull-up in the second drive. This configures the second drive as a Slave. In order to configure two drives in a Master/Slave relationship using the CS jumper, you need to use a cable that provides the proper signal level at pin 28 of the IDE-bus connector. SP Slave Present Jumper ------------------------ In combination with the current DS jumper settings, the Slave Present jumper implements one of two possible configuratons: When the drive is configured as a Master - that is, with the DS jumper installed - the SP jumper should be installed on the Master drive only if the Slave drive does not use the Drive Active/Slave (DASP-) signal to indicate its presence. When the drive is cnfigured as a Slave - that is, without the DS jumper installed - the SP jumper enables the self-seek test. When power is applied to the drive with the self-seek test enabled, the drive executes seeks in a butterfly pattern. If an error is encountered during the self-seek test, the test terminates. JP2 Product Option Jumper ------------------------- The PO jumper is reserved for use by specific customers. Do NOT install the PO jumper for normal IDE master/slave operation. J1A/B/C DC Power/Interface Connector ------------------------------------- The drive's DC power can be applied to either section A or B. The IDE-bus interface (40-pin) uses section C. J1 AT (40-pin)/DC (4-Pin & 3-Pin) Combination Connector +----------------------------------------------------------------+ | 3-Pin 4-Pin | | 40-Pin AT (J1 Section C) DC Power DC Power| | +---------------------------------------+ J1 B J1 A | | |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 o o o . o o o o o o o o o| |o o o| |o o o o| | | ++-------------------+------------------+ +3-2-1+ +4-3-2-1+ | +----+-------------------+---------------------------------------+ | | Pin 40 Missing Pin Pin 20 J1 A Pin 1 +12 VDC 2 +12 VDC Return (Ground) 3 + 5 VDC Return (Ground) 4 + 5 VDC J1 B Pin 1 + 5 VDC 2 +12 VDC 3 Ground ********************************************************************** I N S T A L L ********************************************************************** QUANTUM PRODRIVE LPS 270/540AT PRODUCT MANUAL 81-104074-01 Notes on installation ===================== Orientation ----------- The mounting holes on the ProDrive LPS 270/540AT hard disk drive allow the drive to be mounted in any orientation. horizontally vertically +-----------------+ +--+ +--+ | | | +-----+ +-----+ | | | | | | | | | +-+-----------------+-+ | | | | | | +---------------------+ | | | | | | | | | | | | | | | | | | +---------------------+ | +-----+ +-----+ | +-+-----------------+-+ +--+ +--+ | | | | +-----------------+ Mounting -------- Drive mounting orientation, clearance, and ventilation requirements are described in the following subsections. 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. 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 mounting screws must not exceed 8 inch-pounds. Clearance --------- Clearance from the drive - except mounting surfaces - to any surface must be 0.05 inches minimum. Ventilation ----------- The LPS 270/540AT hard disk drives operates without a cooling fan, provided the ambient air temperature does not exceed 131*F (55*C). DC Power (J1 A and B) ---------------------- The recommended mating connectors for the +5VDC and +12VDC input power are listed above. J1 A 4-Pin Connector: AMP P/N 1-480424-0 Loose piece contacts: AMP P/N VS 60619-4 Strip contacts: AMP P/N VS 61117-4 J1 B 3-Pin Connector: Molex P/N 5484 39-27-0032 Power can be supplied to either J1 section A or J1 section B. Labels indicates the pin numbers on the connectors. Power Sequencing ---------------- You may 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. LED Connector J2 ---------------- The LED connector may 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. The recommended mating connector parts are following: Two-position housing: Molex P/N 51021-0200 Loose-piece contacts: Molex P/N 50058-8100 Drive Cable and Connector ------------------------- The hard disk drive connects to the host computer by means of a cable. This cable contains a 40-pin connector that plug into the drive, and a 40-pin connector that plugs into the host computer. At the host end, the cable plugs into either an adapter board residing in a host expansion slot or an on-board IDE adapter. If two drives are connected by a cable with two 40-pin drive connectors, the cable-select feature of the ProDrive LPS 270/540 AT automatically configure each as drive 0 or drive 1 depending on the configuration of pin 28 on the connector. IDE-Bus Interface Connector (J1 C) ---------------------------------- On the ProDrive LPS 270/540AT hard disk drive, the IDE-bus interface cable connector (J1 section C) is a 40-pin Universal Header. To prevent the possibility of incorrect installation, has been keyed by removing Pin 20, which ensures that a connector cannot be installed upside down. For Systems with a Motherboard IDE Adapter ========================================== You can install the ProDrive LPS 270/540AT hard disk drive in an AT-compatible system that contains a 40-pin AT-bus connector on the motherboard. To connect the drive to the motherboard, use a 40-pin ribbon cable. Ensure that pin 1 of the drive is connected to pin 1 of the mother- board connector. For Systems with an IDE Adapter Board ===================================== To install a ProDrive 270/540AT hard disk drive in an AT-compatible system without a 40-pin, AT-bus connector on its motherboard, you need a third-party IDE-compatible adapter board. Adapter Board Installation -------------------------- Carefully read the manual that accompanies your adapter board before installing it. Make sure that all the jumpers are set properly and that there are no addressing or signal conflicts. You must also investigate to see if your AT-compatible system contains a combination floppy and hard disk controller board. If it does, you must disable the hard disk drive controller functions on the controller board before proceeding. Once you have disabled the hard disk drive controller functions on the floppy/hard drive controller, install the adapter board. Again, make sure that you have set all jumper straps on the adapter board to avoid addressing and signal conflicts. Connecting the Adapter Board and the Drive ------------------------------------------ Use a 40-pin ribbon cable to connect the drive to the board. 1. Insert the 40-pin cable connector into the mating connector on the adapter board. Make sure that pin 1 of the connector matches with pin 1 on the cable. 2. Insert the other end of the cable into the header on the drive. When inserting this end of the cable, make sure that pin 1 of the cable connects to pin 1 of the drive connector. 3. Secure the drive to the system chassis by using the mounting screws. Base Casting Assembly --------------------- A single-piece aluminium-alloy base casting provides a mounting sur- face for the drive mechanism and PCB. The base casting also acts as the flange for the DC motor assembly. To provide a contamination-free environment for the HDA, a gasket provides a seal between the base casting and the metal cover that enclose the drive mechanism. Air Filtration -------------- The ProDrive LPS 270/540AT hard disk drives are Winchester-type drives. The heads fly very close to the media surface. Therefore, it is essential that the air circulating within the drive be kept free of particles. 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 disk forces the air inside of the drive through an internal filter. DC Motor Assembly ----------------- Integral with the base casting, the DC motor assembly is a fixed- shaft, brushless DC spindle motor that drives the counter-clockwise rotation of the disks. Electrical Characteristics -------------------------- All signals are transistor-transistor logic (TTL) compatible - with logic 1 greater than 2.0 volts and less than 5.25 volts; and logic 0 greater than 0.0 volts and less than 0.8 volts. Neither the adapter board, motherboard interface, or drives require terminating resistors. ********************************************************************** F E A T U R E S ********************************************************************** QUANTUM PRODRIVE LPS 270/540AT PRODUCT MANUAL 81-104074-01 General Description ------------------- Quantum's ProDrive Low Profile Series (LPS) 270AT/540AT 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, and are available with a Small Computer System Interface (SCSI) or Advanced Technology (AT) interface. The ProDrive LPS 270AT/540AT hard disk drives feature an embedded AT drive controller and use AT commands to optimize systems performance. Because the drive manages media defects and error recovery internally, these operations are fully transparent to the user. Seek Times ---------- +-----------------+--------------+ |Read-on-arrival | 12 ms typ. | | | 13 ms max. | +-----------------+--------------+ |Track-to-track | 4 ms typ. | +-----------------+--------------+ |Average write | 13 ms typ. | | | 14 ms max. | +-----------------+--------------+ |Full stroke | 23 ms typ. | | | 25 ms max. | +-----------------+--------------+ System Startup and Operation ---------------------------- Once you have installed the ProDrive LPS 270/540AT hard disk drive and adapter board (if required) in the host system, you are ready to partition and format the drive for operation. To set up the drive correctly, follow these steps: 1. Power on the system 2. Run the SETUP program. This is generally on a Diagnostics or Utilities disk, or within the system's BIOS. 3. Enter the appropriate parameters. The SETUP program allows you to enter the types of optional hard- ware installed - such as the hard disk drive type, the floppy disk drive capacity, and the display adapter type. The system's BIOS uses this information to initialize the system when the power is switched on. For instructions on how to use the SETUP program, refer to the system manual for your PC. During the AT system CMOS setup, you must enter the drive type for the ProDrive LPS 270/540AT hard disk drive. The drive supports the translation of its physical drive geometry parameters such as cylinders, heads, and sectors per track, to a logical addressing mode. The drive can work with different BIOS drive-type tables of the various host systems. 4. Boot the system using the operating system installation disk. NOTE The drive is shipped from the factory with a low-level format. A low- level format is not required. Formatted Capacity ------------------ At the factory, the ProDrive LPS 270/540AT receives a low-level format that creates the actual tracks and sectors on the drive. Data Transfer Rates ------------------- Data is transferred from the disk to the read buffer at a rate up to 5.8 MB/s in burst. Data is transferred from the read buffer to the AT bus at a rate up to 4.0 MB/s, using programmed I/O without IORDY, up to 11 MB/s using programmed I/O with IORDY, or at a rate of up to 13.0 MB/sec using multi-word DMA. Reliability ----------- Mean Time Between Failures (MTBF): 150,000 Power On Hours (POH), typical usage Component Life: 5 years Preventive Maintenance (PM): Not required Start/Stop: 20,000 cycles (minimum) The Quantum MTBF numbers represent Bell-Core TR-TSY-000332 MTBF predictions and represent the minimum MTBF that Quantum or a customer would expect from the drive. Error Detection and Correction ------------------------------ As disk drive areal densities increase, obtaining extremely low error rate requires a new generation of soghisticated error-correction codes. Quantum ProDrive LPS 270/540AT 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 occur, an automatic retry and a more rigorous double- burst correction algorithm enable the correction of any sector with two burst 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 reduce the probability of miscorrection. 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. Disk Caching ------------ The ProDrive LPS 270/540AT hard disk drive incorporates DisCache, a 96K disk cache, to enhance drive performance. This integrated feature is user-programmable and can significantly improve system throughput. Read and write caching can be enabled or disabled by using the SET CONIGURATION command.