P R O D R I V E 1 0 5 0 S QUANTUM NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 3.5"/HH Cylinders 2448| | | Capacity form/unform 1050/ MB Heads 12| | | Seek time / track 10.0/ 3.0 ms Sector/track | | | Controller SCSI2 SI/FAST Precompensation Cache/Buffer 512 KB SEGMENTED Landing Zone Data transfer rate 3.000 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 50 | -40 65 Power: sleep W Humidity % 8 85 | 5 95 standby W Altitude km -0.061 3.048| -0.061 12.000 idle 8.0 W Shock g 10 | 60 seek 11.1 W Rotation RPM 4002 read/write W Acoustic dBA 40 spin-up W ECC Bit 112,REED SOLOMON MTBF h 350000 Warranty Month 60 Lift/Lock/Park YES Certificates CSA,FCC,TUV,UL1950,VDE ********************************************************************** L A Y O U T ********************************************************************** QUANTUM PRODRIVE 700/1050/1225S PRODUCT MANUAL 81-102480-01 AUG. 92 +----------------------------------------------------------+ | A2 A1 A0 | | +-+-+-+-+-++-+-+-+ |XX | +-+-+-+-+-++-+-+-+JP1 |XX | TE SS EP WS |XX | |XX | |XX SCSI | |XX J1 | |.X | |XX | |XX | |XX | |XX | |XX | |XX1 ++ LED | ++ |XX | |XX J3 +----------------------------------------------------------+ 1 ********************************************************************** J U M P E R S ********************************************************************** QUANTUM PRODRIVE 700/1050/1225S PRODUCT MANUAL 81-102480-01 AUG. 92 Jumper Setting ============== x = Jumper set at factory Jumper Options -------------- On the Drive's PCB, there are eight pairs of jumper pins that allow you to control drive operation. When you change a jumper setting, the new setting is in effect when the drive is next powered on. +---------+-----------+-------------------------------------------+ | Jumper | Setting | Description | +---------+-----------+-------------------------------------------+ | TE | OPEN | Termination Disabled | | | CLOSED x | Termination 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. | +---------+-----------+-------------------------------------------+ Jumper Options -------------- The configuration of five jumpers control the drive's mode of operation: TE - Termination Enable EP - Enable Parity WS - Wait/Spin TE Termination Enable Jumper ---------------------------- One of the requirements of the SCSI bus is that it be terminated with proper termination resistors. If more than one hard disk device is connected to the host, the last one must be terminated. The TE (Termination Enable) jumper, when installed, connects terminating resistors to the SCSI bus. With the TE jumper off, no resistors are connected. 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 700/1050/1225S 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 700/1050/1225S 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 will become ready to perform read or write operations without the need for start command. 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 will become ready to perform read or write operations. A2/A1/A0 SCSI-Bus Device Identification ---------------------------------------- Used in combination, the jumper settings across A2, A1, and A0 de- termine the ProDrive 700/1050/1225S 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 labeled A2 and A1, and no jumper installed across the pins labeled A0. +----------+-----------------------+ | 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. ********************************************************************** I N S T A L L ********************************************************************** QUANTUM PRODRIVE 700/1050/1225S PRODUCT MANUAL 81-102480-01, AUG. 92 Notes on Installation ===================== Installation direction ---------------------- horizontally vertically +-----------------+ +--+ +--+ | | | +-----+ +-----+ | | | | | | | | | +-+-----------------+-+ | | | | | | +---------------------+ | | | | | | | | | | | | | | | | | | +---------------------+ | +-----+ +-----+ | +-+-----------------+-+ +--+ +--+ | | | | +-----------------+ Orientation The ProDrive 700/1050/1225S can be mounted in ANY orientation. #6-32 UNC screws are recommended for mounting. 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. Clearance --------- Clearance from the drive - except mounting surfaces - to any other surface must be 0.10 inches minimum. Ventilation ----------- The 700/1050/1225S hard disk drive operates without a cooling fan, provided the ambient air temperature does not exceed 131*F (55*C). J3 DC Power Connector --------------------- The drive's DC power connector (J3) is 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 60619-1 or equivalent (20-14 ga.) Strip contacts: AMP P/N 61117-1 or equivalent (20-14 ga.) 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 (ground returns) are connected on the drive. J1 SCSI Connector ------------------ The SCSI cable connector (J1) on the ProDrive 700/1050/1225S 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 (base part) AMP P/N 1-746195-2, or equivalent 50-pin connector strain relief AMP P/N 1-499508-2 or equivalent +----------------------------------------+ | | | | | +-----J1-SCSI----------------Power---+ | | |+-------------------------++4-3-2-1+| | | ||oooooooooooooooooooooooo1||O O O O|| | | ||ooooooooooooooooooooooooo|| || | | |+-Interface-Connector-----++--J3---+| | +-+------------------------------------+-+ 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. 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. Disk Caching ------------ The ProDrive 700/1050/1225S hard disk drive incorporates DisCache a 512K 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. Acoustics --------- +-----------------+-----------------------+----------+ | Operating Mode | Measured Noise | Distance | +-----------------+-----------------------+----------+ | Idle On Track | 38 dBA pressure level | 1 m | | | 4.4 Bels (sound power)| | +-----------------+-----------------------+----------+ | Seeking Random | 47 dBA pressure level | 39.3 in | | | 5.4 Bels (sound power)| (1 m) | +-----------------+-----------------------+----------+ Track and Cylinder Skewing -------------------------- +-------+---------+------+---------+ | Zone |Sectors |Track | Cylinder| | Number|Per Track|Skew | Skew | | | |(#sec)| (#sec) | +-------+---------+------+---------+ | 15 | 42 | 9 | 12 | +-------+---------+------+---------+ | 14 | 48 | 10 | 13 | +-------+---------+------+---------+ | 13 | 51 | 11 | 14 | +-------+---------+------+---------+ | 12 | 56 | 12 | 15 | +-------+---------+------+---------+ | 11 | 64 | 13 | 17 | +-------+---------+------+---------+ | 10 | 64 | 13 | 17 | +-------+---------+------+---------+ | 09 | 67 | 14 | 18 | +-------+---------+------+---------+ | 08 | 70 | 15 | 19 | +-------+---------+------+---------+ | 07 | 73 | 15 | 20 | +-------+---------+------+---------+ | 06 | 75 | 16 | 20 | +-------+---------+------+---------+ | 05 | 80 | 17 | 22 | +-------+---------+------+---------+ | 04 | 80 | 17 | 22 | +-------+---------+------+---------+ | 03 | 85 | 18 | 23 | +-------+---------+------+---------+ | 02 | 86 | 18 | 23 | +-------+---------+------+---------+ | 01 | 89 | 19 | 24 | +-------+---------+------+---------+ | 00 | 92 | 19 | 25 | +-------+---------+------+---------+ 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 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. Direct Memory Access (DMA) -------------------------- The DSP (Digital Signal Processor) supports DMA functions with the HOLD and HOLDA pins. Using this pins, another processor or DMA controller can take control of the DSP's memory. When the HOLD pin is asserted low, the address, data, and control lines of the DSP go to a high-impedance state, thus allowing another controller to drive this lines. Microcomputer/DSP Interface --------------------------- The microcomputer and DSP operate in a master/slave relationship. The microcomputer is the master, and is able to read any location in the DSP's data or program memory, and can write to any RAM-based data or programm memory locations. A single exchange, which can occur once per control interval (twice per servo sample) involves either a read or a write of a single DSP memory location. The DSP code is structured such that a single write can initiate a seek. SSID - Software Selectable ID (Byte 3, Bit 3) --------------------------------------------- When SSID is set to zero, the jumper setting on the drive PCB de- termine the drive's SCSI ID at all times. When SSID is set to one, the SCSIADR bits (bits 0-2 of byte 3) determine the drive's SCSI ID and the jumper settings will be ignored. When the SSID bit is set to one, the SCSI ID will remain unchanged until the next reset or power on. If an initial power on, the SSID bit is set to one - that is, if this bit's previous setting was saved on the disk - the SCSIADR bits will determine the drive's SCSI ID. Otherwise, the jumper settings on the drive PCB will determine its SCSI ID. The default is zero. ********************************************************************** F E A T U R E S ********************************************************************** QUANTUM PRODRIVE 700/1050/1225S PRODUCT MANUAL 81-102480-01 General Description ------------------- The ProDrive 700/1050/1225S hard disk drives feature an embedded SCSI drive controller and uses SCSI commands to optimize system performance. Because the drive manages media defects and error recovery internally, these operations are fully transparent to the user. Reliability ----------- Mean Time Between Failures (MTBF): 250,000 Power On Hours (POH), Preventive Maintenance (PM): Not required Mean Time To Repair (MTTR): 30 minutes Component life: 5 years Seek Time --------- ----------------------------------+--------+ Track-to-Track msec. typ. | 3 | Average msec. typ. | 10 | Full Stroke msec. typ. | 18 | Latency msec. avg. | 6.7 | ----------------------------------+--------+ Formatted Capacity ------------------ At the factory, the 700/1050/1225S receives a low-level format that creates the actual tracks and sectors on the drive. Error Correction Code and ECC On-The-Fly ---------------------------------------- The ProDrive 700/1050/1225S hard disk drive implements 96-bit single and double burst Reed-Solomom error correction techniques. Single burst errors of up to to 24 bits within one sector can be corrected "on-the-fly", in real time as they occur, allowing a high degree of data integrity with no impact to the drive's performance. The drive does not need to re-read sector on the next disk revolu- tion or apply ECC for those errors that are corrected on-the-fly. Errors corrected in this manner are invisible to the host system. The drive will not report a recovered error unless it needs more than two disk revolutions in order to correct any error. When errors cannot be corrected on-the-fly, an automatic retry and a more rigorous double burts error correction algorithm enable the correction of any sector with two burst of three incorrect bytes each or up to 6 multiple random one-byte burst errors. In addition to this error correction capability, the drive's implementation of an additional cross-checking code and algorithm double checks the main ECC correction and greatly improves the probability of miscorrection. Defect Management ----------------- The ProDrive 700/1050/1225S 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 sub- sequent 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. Track Formatting ---------------- The 700/1050/1225S hard disk drive is shipped from the factory with all of the physical sector addresses prewritten on the surface of the disk. As a result, the number of bytes per sector and the number of sectors per track are not selectable by the user. Write Precompensation --------------------- A write precompensation circuit within the chip provides independent control of early and late precompensation settings, which accommodates the asymmetrical pulses produces by thin-film heads.