D K 3 2 6 C - 6 HITACHI NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 3.5"/SLIMLINE Cylinders 3202| | | Capacity form/unform 601/ MB Heads 4| | | Seek time / track 9.8/ 2.0 ms Sector/track | | | Controller SCSI2 SI/FAST Precompensation Cache/Buffer 448 KB LOOK-AHEAD Landing Zone Data transfer rate 6.000 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 10 50 | -20 60 Power: sleep W Humidity % 8 80 | 8 90 standby W Altitude km 3.000| 12.000 idle W Shock g 5 | 40 seek W Rotation RPM 6300 read/write W Acoustic dBA 45 spin-up W ECC Bit 96 MTBF h 400000 Warranty Month Lift/Lock/Park YES Certificates CSA,FCC,IEC950,TUV,UL1950,VDE ********************************************************************** L A Y O U T ********************************************************************** HITACHI DK326C (SINGLE-ENDED) PRODUCT SPECIFICATION K6600650 12/1993 Single Ended Type +---------------------------------------------------------+ |+-------+ 8-7 +-+--+ || | JP3 | | +-+ | || | 2-1 | | | || | | | | || | | | | || | 15-16 | | | |+-------+ | | | | | ++ | | JP2 | | | ++ | | | | | | 2+-+1 | | | |+--+ | | | || | | | | || |J3 | | | || | | | | ||x | +-+ | |+--+ +-+--+ +---------------------------------------------------------+ Other Side +-----------------------------------------------+--J6-----+ | | +-----1 +---+J2 | | 8-----+ | |Power | +---------+---+ | |1 | | | |I | |N | |T | |E J1 | |R | |F | |A | |C | J7 |E | +-----1 | | 8-----+ | +-------------------------------------------------------------+ ********************************************************************** J U M P E R S ********************************************************************** HITACHI DK326C (SINGLE-ENDED) PRODUCT SPECIFICATION K6600650 12/93 Jumper Setting ============== NOTE JP2 1-2, 3-4, 5-6, 9-10, 11-12, 13-14, 15-16 and JP3 1-2, 5-6, 7-8 and J6 1-2, 3-4, 5-6 are installed at the shipment. User changeable jumpers are green! Jumper Plug Installation ------------------------ The following jumpers are accessible to the user Jumper Pin.-No. SCSI ID setting jumper J6 1 6 SCSI BUS PARITY CHECK setting jumper JP2 7 8 Terminator power source selecting jumper JP3 1 4 Terminator Enable/Disable setting jumper JP3 5 6 MOTOR START/STOP setting jumper JP2 5 6 Synchronized Spindle jumper JP2 1 4 Synchronized Spindle Terminator jumper JP3 7 8 NOTE1 The DK326C jumpers other than listed above are installed by the manu- facturer and must NOT be removed or replaced by the user. Never remove any of the "BLACK" factory set jumpers. These jumpers are unique to each drive. All jumpers should be set with power off. Jumper socket part numbers (GREEN): Microbit header, Elco International K.K. P/N 20-8387-002-005 NOTE2 By using an extension cable from J6 connector, SCSI ID Setting and LED are externally available. J6 J6 7 pin o--------------+<--------------o 8 pin Connector part numbers on the cable side +-------------+------------------+-------------------+ |Name |Manufacturer |Part No. | +----+--------+------------------+-------------------+ |J6 |Housing |Elco International|62-8387-008-100-001| | | |K.K. | | | +--------+ +-------------------+ | |Contact | |72-8387-999-100-800| | |Socket | | | +----+--------+------------------+-------------------+ J6 1 6 SCSI ID setting jumper ------------------------------- 7--+--+--+--1 | | | | | SCSI ID 0 REMOVE all jumper plugs 8--+--+--+--2 7--+--+--+--1 | | | |XX| SCSI ID 1 install the jumper plug for J6 1,2 8--+--+--+--2 7--+--+--+--1 | | |XX| | SCSI ID 2 install the jumper plug for J6 3,4 8--+--+--+--2 7--+--+--+--1 | | |XX|XX| SCSI ID 3 install the jumper plugs for J6 1 4 8--+--+--+--2 7--+--+--+--1 | |XX| | | SCSI ID 4 install the jumper plug for J6 5,6 8--+--+--+--2 7--+--+--+--1 | |XX| |XX| SCSI ID 5 install the jumper plugs for J6 1,2,5,6 8--+--+--+--2 7--+--+--+--1 | |XX|XX| | SCSI ID 6 install the jumper plugs for J6 3 6 8--+--+--+--2 7--+--+--+--1 | |XX|XX|XX| SCSI ID 7 install the jumper plugs for J6 1 6 8--+--+--+--2 (DEFAULT) JP2 7,8 SCSI BUS PARITY CHECK setting jumper --------------------------------------------- 15+-+-+-+-+-+-+-+-1 | | | | | | | | | Enable SCSI BUS PARITY CHECK 16+-+-+-+-+-+-+-+-2 Remove the jumper plugs for JP2-7,8 (DEFAULT) 15+-+-+-+-+-+-+-+-1 | | | | |X| | | | Disable SCSI BUS PARITY CHECK 16+-+-+-+-+-+-+-+-2 Install the jumper plugs for JP2-7,8 JP3 1 4 Terminator power source selecting jumper ------------------------------------------------- +----+ 8| |7 +5V source for terminator is supplied only from the SCSI +----+ bus (HOST) 6| |5 +----+ Install the jumper plug for JP3 3,4 4|XXXX|3 +----+ 2| |1 +----+ +----+ 8| |7 +5V source for terminator is supplied only from the drive +----+ controller (DEFAULT) 6| |5 +----+ Install the jumper plug for JP3 1,2 4| |3 +----+ 2|XXXX|1 +----+ JP3 5,6 Terminator Enable/Disable setting jumper ------------------------------------------------- +----+ 8| |7 Disable the terminator +----+ 6| |5 Remove the jumper plugs for JP3 5,6 +----+ 4| |3 +----+ 2| |1 +----+ +----+ 8| |7 Enable the terminator (terminate the SCSI bus) +----+ 6|XXXX|5 Install the jumper plug for JP3 5,6 +----+ 4| |3 +----+ 2| |1 +----+ NOTE Terminator on DK326C has the semiconductor switch internally, and installing and removing of terminator is performed by this switch and jumper setting instead of physical installing and removing of terminator. So some power source is always required to operate semiconductor switch in any terminators of the drives on SCSI Bus cable. Otherwise the impedance of this Bus network will be pulled down and correct termination will not be kept. +--------------+-----+---------------------+-----------------------+ | | |Last drive to be |Non-last drive on a BUS| | | JP3 |terminated on a daisy|CABLE or any drives in | | | Pin#|chain BUS CABLE |ease of external | | | +-------+-------------+termination | | | |Set A |Set B | | +--------------+-----+-------+-------------+-----------------------+ |terminator | 1-2 |install|remove |remove | |power source +-----+-------+-------------+-----------------------+ | | 3-4 |remove |install |install | +--------------+-----+-------+-------------+-----------------------+ |terminator | 5-6 |install|install |remove | |enable/disable| | | | | +--------------+-----+-------+-------------+-----------------------+ JP2 5,6 Motor Start/Stop setting jumper ---------------------------------------- -+7+-+-+-1 Spindle motor start up at the power on (DEFAULT) | |X| | | -+8+-+-+-2 Install the jumper plug for JP2 5,6 -+7+-+-+-1 Spindle motor start up units the SCSI "start/stop unit | | | | | Command" -+8+-+-+-2 Remove the jumper plug for JP2 5,6 JP1 1-4 Synchronized spindle jumper ------------------------------------ The Synchronized spindle option can be supported by the combination of these jumpers. At the shipment, these jumpers are set to "Off Line Mode", which means non-supported. The mode to be supported will be decided when power is turned on. The mode can be confirmed by MODE SENSE command and changed by MODE SELECT command. -+3+-1 -+3+-1 -+3+-1 -+3+-1 |X|X| |X| | | |X| | | | -+4+-2 -+4+-2 -+4+-2 -+4+-2 off Line Slave Master Not Specified at the shipment JP3 7-8 Synchronized Spindle Terminator jumper ----------------------------------------------- +----+ 8| |7 MASTER CLOCK line is not terminated +----+ 6| |5 Remove the jumper plugs for JP3 7,8 +----+ 4| |3 This jumper will be removed at drives other than the end +----+ of the signal line. 2| |1 +----+ +----+ 8|XXXX|7 MASTER CLOCK line is terminated (factory setting) +----+ 6|XXXX|5 Install the jumper plug for JP3 7,8 +----+ 4| |3 +----+ 2| |1 +----+ ********************************************************************** I N S T A L L ********************************************************************** HITACHI DK326C SPECIFICATION K6600650 12/93 Notes on installation ===================== Drive mounting -------------- horizontally vertically +-----------------+ +--+ +--+ +------------------+ | | | +-----+ +-----+ | | | x | | | | | | | | x+----------------+x +-+-----------------+-+ | | | | | | ||x x|| +---------------------+ | | | | | | || x x || | | | | | | || x x || x x | | | | | | || x x || +------x------x-------+ | +-----+ +-----+ | || xx || +-+------x--x-------+-+ +--+ +--+ || x x || | xx | || x x || | x x | || x x || +---x--------x----+ |x x| x x x++----------------++x UNACCEPTABLE! UNACCEPTABLE! Mounting -------- Mount the drive four screws by properly inserting them trhough 4 holes in the drive. (Screw's torque: 6 8KG-cm (2.36 3.15Kg-inch). Clearance not less than 3mm around HDA is required to accommodate any possible vibration of HDA itself. Cooling ------- The cooler the opearating temperature within the specification, the higher the reliability of the drive. When you install the drive in a cabinet or box, ventilate it using a fan. It is desirable that the temperature around the drive be kept at almost the same as room temperature. Connecting Methods ------------------ Interface Cable (Daisy Chain) +-----------+ | +-Terminator | SCSI BUS | +-------++-SCSI--++-------++--------+ | +-+ || Cable || || | | | || || || | | | || || || | | | || || || ++Terminator | | +---++-+ +---++-+ +---++-+ +---+-++ | | |DK326C| |DK326C| |DK326C| |DK326C| | | +--++--+ +--++--+ +--++--+ +--++--+ | | || || || || +-----------+ || || || || | +-Power--+| || || || | +---------+-------+| || || | DC POWER +---------+--------+-------+| || | +---------+--------+--------+-------+| +-----------+ | | | | | GND +---------+--GND---+--------+--------+ +-----------+ NOTE1 The SCSI bus can accommodate a maximum of eight (Single-Ended) units including the host processor, DK326C units, and other SCSI devices. NOTE2 Every DK326C unit is furnished with a terminator module. The terminator module of the drives other than the last drive (end of SCSI cable) must be removed. Single configuration +-------+ +-------+ | HOST +----SCSI-Bus--------+DK326C | | XXX +--------------------+ XXX | +-------+ +-------+ Mult-controller configuration +-------+ +-------+ | HOST +----SCSI-Bus--------+ DK326C| | XXX +------+ +----------+ #0| +-------+ | | +-------+ | | +-------+ | +----------+ DK326C| +-------------+XXX #1| +-------+ Multi-host configuration +-------+ +-------+ | HOST +----SCSI-Bus--------+ DK326C| | +----+ +----+ #0 | +-------+ | | +-------+ +-------+ | | +-------+ | HOST | | | | DK326C| | XXX+----+ +----+XXX #1 | +-------+ +-------+ XXX = Terminator installed The system can consist of a maximum of eight units (Single-Ended) including the host adapter in multi-controller and/or multi-host configuration. Terminator must be provided only at BOTH ENDS of SCSI Bus. +---------+ pin 1 +12 VDC | O O O O | pin 2 +12 Volts Return (GND) | 4 3 2 1 | Power pin 3 + 5 Volts Return (GND) +---------+ pin 4 + 5 VDC Connector Specifications for Cables ----------------------------------- The following connector part numbers indicate the connectors on cable side. +----------------+-------------------------------------------------+ | |Name Part Number Type | +----------------+-------------+----------------+------------------+ |Cable B for |Connector P1 |3M-3425-6500S & |Single | |SCSI interface | |3448-3050J or |Ended | | | |3M-3425-6550EC |Type | | | |(with strain | | | | |relief) or | | | | |FCN-607B050-G/0 | | | | +----------------+------------------+ | | |AMP 786090-7 |Wide Differential | | | |Fujitsu FCN |Type | | | |237M068-G/0 | | +----------------+-------------+----------------+------------------+ |Cable A for DC |Connector P3 | | | |power supply | Pin |AMP 61314-4 | | | | +----------------+------------------+ | | Housing|AMP 1-480424-0 | | +----------------+-------------+----------------+------------------+ |LED Connector |Connector P6 | | | | | Housing|FCN-723J012/2M | | | | +----------------+------------------+ | | Contact|FCN-723J-AU | | | | Socket | | | +----------------+-------------+----------------+------------------+ Cable Specification ------------------- +------------+----------------------------+------------------------+ | |Cable Type |Recommended max. Cable | | | |length | +------------+----------------------------+------------------------+ |Cable B for |FLAT RIBBON or TWISTED PAIR | 6m (Single Ended Type) | |SCSI inter- | |25m (Wide Differentail) | |face | | | +------------+----------------------------+------------------------+ |Cable A for |AWG #20 | | |DC power |Sectional area core: 0.5mm |3m | |supply |Max. external diameter: 2.54| | +------------+----------------------------+------------------------+ When multiple drives are connected to each other in a "daisy-chain" connection, total length of cable B should not exceed the recommended maximum cable length. To improve the interface noise elimination, especially if the cables run close to noise generating devices or come out of the frame, shield the cables as necessary. Crimping Tools (Single-Ended Type) ---------------------------------- Cable B for control signal Manual type: 3M-3640 or 3M-3335 Cable A for DC power supply Manual type: AMP 90123-2 ********************************************************************** F E A T U R E S ********************************************************************** HITACHI DK326C SPECIFICATION K6600650 12/93 Product Specifications ---------------------- The DK326C disk storage is a high-speed, large-capacity enhancement of the existing DK325 disk storage. The DK326C has high-performance sputtered disks and thin film heads sealed in a dust-proof enclosure. It adopts a voice coil motor for driving the magnetic heads. It features large capacity, high-speed positioning, and high reliability for its compact size. The interface that the DK326C uses is a SCSI-2 interface, supporting ANSI SCSI and the CCS. FIFO Buffer ----------- DK326C SCSI controller has 448K (64Kx7) bytes of FIFO buffer. This data buffering feature prevents the delay from being brought about during reconnect processing and reduces the latency time that is otherwise generated by the difference in the data rate between the two devices. Automatic error correction -------------------------- The controller uses 12 bytes of ECC to automatically correct read errors. Automatic error retry --------------------- The controller automatically retries whenever disk accesses occur. Self-diagnosis -------------- After power up drive performs self-diagnosis automatically. In order to achieve higher reliability controller performs self-diagnostic operation in about every five seconds. Seek error retry ---------------- The controller makes a maximum of 4 retries when a seek fault or ID mismatch error (the head is positioned on an invalid track) occurs. A seek error retry is executed with a rezero operation. (The controller makes a retry oneself before the host makes a retry.) Retry execution time is not more than 110 msec times the number of retries.