Conner Peripherals, Inc. CP3100 SCSI Intelligent Disk Drive Product Manual Revision VI May, 1990 3081 Zanker Road San Jose, CA 95134-2128 (408) 456-4500 Japan (81) 3-597-8321 Europe (49) 89-811-2097 Notice Conner Peripherals makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Conner Peripherals shall not be liable for errors contained herein or for incidental consequential damages in connection with the furnishing, performance, or use of this material. Conner Peripherals, Inc. reserves the right to change, without notification, the specifications contained in this manual. Copyright Conner Peripherals, Inc. No part of this publication may be reproduced or translated into any language in any form without the written permission of Conner Peripherals, Inc. IBM, PC/AT and PC/XT are registered trademarks of International Business Machines Corporation. Table of Contents 1.0 Scope of Manual 2.0 Key Features 3.0 Specification Summary 3.1 Capacity 3.2 Physical Configuration 3.3 Performance 3.4 Read/Write 3.5 Power Requirements (Typical) 3.6 Physical Characteristics 4.0 Environmental Characteristics 4.1 Ambient Temperature 4.2 Humidity 4.3 Altitude (relative to sea level) 4.4 Reliability and Maintenance 4.5 Shock and Vibration 4.6 Magnetic Field 4.7 Acoustic Noise 4.8 Safety Standards 5.0 Functional Description 5.1 Read/Write and Control Electronics 5.2 Drive Mechanism 5.3 Air Filtration System 5.4 Head Positioning Mechanism 5.5 Read/Write Heads and Disks 5.6 Error Correction 5.7 Customer Options 6.0 Electrical Interface 6.1 Power Connector 6.2 Diagnostic Routines 6.3 SCSI Termination 6.4 Spindle Synchronization 7.0 Recommended Mounting Configuration 8.0 SCSI Interface 8.1 SCSI Commands 8.2 Cable Requirements 8.3 Connector Requirements 8.4 Electrical Description 8.4.1 Output Characteristics 8.4.2 Input Characteristics 8.4.3 Terminator Power 1.0 Scope of Manual This specification describes the key features, specification summary, physical characteristics, environmental characteristics, functional description, electrical interface, recommended mounting configuration, timing requirements, host address decoding, command description, operations description, and error reporting for the Conner Peripheral's model CP3100. 2.0 Key Features The Conner Peripherals CP3100 is a 3.5 inch disk drive which offers high performance and capacity (104 megabytes) with low power consumption. It comes equipped with an embedded industry standard controller. Key features include: o 1:1 Interleave o Spindle Synchronization o 32K Byte Read Look Ahead Buffer o Embedded Servo o Rotary Voice Coil Actuator o Track Skewing o Low Power Consumption o Automatic Retries 3.0 Specification Summary 3.1 Capacity 104 Mbytes Formatted 3.2 Physical Configuration Actuator Type Rotary Voice-coil Number of Disks 4 Data Surfaces 8 Data Heads 8 Servo Embedded Tracks per Surface 776 Track Density 1200 TPI Track Capacity 16,896 bytes Bytes per Block 512 Blocks per Drive 204,864 Blocks per Track 33 3.3 Performance: Seek times Track to Track: 8 ms Average: 25 ms Maximum: 45. ms Rotation Speed (+0.1%) 3575 RPM Data Transfer Rate 1.25 Mbyte/sec Start Time typical: 15 sec maximum: 20 sec Stop Time typical: 15 sec maximum: 20 sec Interleave 1:1 Buffer Size 32K The timing is measured through the interface with the drive operating at nominal DC input voltages. The timing also assumes that any I/O driver overhead and system hardware dependency have been subtracted from timing measurements. The average seek time is determined by averaging the seek time for a minimum of 1000 seeks of random length over the surface of the disk. 3.4 Read/Write Interface SCSI Recording Method RLL Code Recording Density (ID) 23,441 BPI Flux Density (ID) 15,627 RPI 3.5 Power Requirements (Typical) +12V DC +5V DC Power Read/Write Mode 270 ma 380 ma 5.2 W Seek Mode 330 ma 350 ma 5.7 W Ready Mode 240 ma 350 ma 4.7 W Spin-up Mode 2.0 A 350 ma N/A +12V DC: The maximum ripple allowed is 1% with equivalent resistive load. +5V DC: The maximum ripple allowed is 2% with equivalent resistive load, without SCSI bus terminators installed. Read/Write Mode: Occurs when data is being read from or written to the disk. Seek Mode: Occurs when the actuator is in motion. Ready Mode: Occurs when the drive is not reading, writing, or seeking. The spin motor is up to speed and a Drive Ready condition exists. The actuator is residing on the last accessed track. Spin-up Mode: Current draw is for 7 seconds maximum. 3.6 Physical Characteristics 1.62" x 4.00" x 5.75" (with shock frame) Weight 1.8 pounds 4.0 Environmental Characteristics 4.1 Temperature Operating 5 deg C to 55 deg C Non-operating -40 deg C to 60 deg C Thermal Gradient 20 deg C P/h 4.2 Humidity Operating 8% to 80% non-condensing Non-operating 8% to 80% non-condensing Maximum Wet Bulb 26 deg C P/h 4.3 Altitude (relative to sea level) Operating 0 to 10,000 feet Non-operating (max) 40,000 feet 4.4 Reliability and Maintenance MTBF 50,000 hours (POH)1 MTTR 10 minutes typical Maintenance None Data Reliablity <1 non-recoverable error in 1012 bits read 4.5 Shock and Vibration Shock: 1/2 sine pulse, 11 msecond duration Vibration: Swept sine, 1 octave per minute Non-operating shock 50 Gs, 10 ms Non-operating vibration 5-62 Hz (1.2 oct/min) 0.020" double amplitude 63-400 Hz (1/2 oct/min) 4 Gs peak Operating Shock 5 Gs (without non-recoverable errors) Operating Vibration 5-22 Hz .010 inch displacement (double amplitude) 23-500 Hz .25 Gs (without non-recoverable error) 4.6 Magnetic Field The disk drive will meet its specified performance while operating in the presence of an externally produced magnetic field under the following conditions: Frequency Field Intensity 0 to 700 Khz 6 gauss maximum 700 Khz to 1.5 Mhz 1 gauss maximum 4.7 Acoustic Noise The sound pressure level will not exceed 40 dBA at a distance of 1 meter from the drive. 4.8 Safety Standards The drive is designed to comply with relevant product safety standards such as: o UL 478, 5th edition, Standard for Safety of Information Processing and Business Equipment, and UL 1950, Standard for Safety of Information Technology Equipment o CSA 22.2 #154, Data Processing Equipment and CSA 22.2 #220, Information Processing and Business Equipment CSA 22.2 #950, Safety of Information Technology Equipment o IEC 435 Safety Requirements for Data Processing Equipment, IEC 380, Safety of Electrically Energized Office Machines, and IEC 950, Safety of Information Technology Equipment Including Electrical Business Equipment o VDE 0805 Equivalent to IEC 435, VDE 0805 TIEL 100, Equivalent to IEC 950, and VDE 0806, Equivalent to IEC 380 o TUV Essen TUV Rheinland 5.0 Functional Description The drive contains all necessary mechanical and electronic parts to interpret control signals, position the recording heads over the desired track, read and write data, and provide a contaminant free environment for the heads and disks. 5.1 Read/Write and Control Electronics One integrated circuit is mounted within the sealed enclosure in close proximity to the read/write heads. Its function is to provide head selection, read pre-amplification, and write drive circuitry. The single microprocessor-controlled circuit card provides the remaining electronic functions which include: o Read/Write Circuitry o Rotary Actuator Control o Interface Control o Spin Speed Control o Dynamic Braking At power down the heads are automatically retracted to the inner diameter of the disk and are latched and parked on a landing zone that is inside the data tracks. 5.2 Drive Mechanism A brushless DC direct drive motor rotates the spindle at 3575 RPM. The motor/spindle assembly is dynamically balanced to provide minimal mechanical runout to the disks. A dynamic brake is used to provide a fast stop to the spindle motor and return the heads to the landing zone when power is removed. 5.3 Air Filtration System Within the sealed enclosure, a 0.3 micron filter provides a clean environment to the heads and disks. 5.4 Head Positioning Mechanism The read/write heads are supported by a mechanism coupled to a voice coil actuator. 5.5 Read/Write Heads and Disks Data is recorded on 95mm diameter disks through 3370 type heads. 5.6 Error Correction The drive performs internal error correction. The six-byte error correction polynomial is capable of correcting one error burst with a maximum of 8 bits per 512 byte block. 5.7 Customer Options There are three jumpers available for configuration; E1, E2, and E3 are used to selects the drive's SCSI ID. The following table defines the settings. E4 if jumpered will disable SCSI parity. E5 if jumpered, enables spindle syncronization. E6 if jumpered, enables the LED signal on J4 pins 1 and 2. Jumper Options SCSI ID E1 = 1 E2 = 2 E3 = 4 6.0 Electrical Interface 6.1 Power Connector The drive has a four-pin DC power connector (J4) mounted on the PCB. The recommended mating connector is Amp part number 1-480424-0 utilizing AMP pins (part number 350078-4 or equivalent). 6.2 Diagnostic Routines The microprocessor performs diagnostics upon application of power. If an error is detected, the drive will not come ready. 6.3 SCSI Termination There are three removable terminators: RP1, RP2, and RP3. They can be removed from the drive if bus termination is provided elsewhere in the system. If multiple devices are installed on the cable, only the last device is terminated. 6.4 Spindle Synchronization For use in Disk Arrays, a spindle synchronization feature is provided. Spindle synchronization between drives is accomplished by connecting a cable to J1 on each of the drives. Up to twelve disk drives may be connected, and the method used to implement synchronization does not require a designated master drive. To construct the cable, a 2-conductor ribbon cable and 16-pin displacement connector(Molex part number 15-47-3162 or equivalent) are required. Install the required number of connectors on the ribbon cable with the two conductors in pin positions 1-2 (pin positions 3-16 are unused). To install the completed cable, connect the 16-pin displacement connector to J1 of each drive. Align pin 1 of the connector with pin 1 of J1. 7.0 Recommended Mounting Configuration The CP3100 drive is designed to be used in applications where the unit may experience shock and vibrations at greater levels than larger and heavier disk drives. The design features which allow greater shock tolerance are the use of rugged heads and media, a dedicated landing zone, closed loop servo positioning and specially designed motor and actuator assemblies. Ten base mounting points are provided to the customer. The drive is mounted using 6-32 screws; 1/8" max. insertion for the sides, and 1/4" max. insertion for the bottom. The system integrator should allow ventilation to the drive to ensure reliable drive operation over the operating temperature range. The drive may be mounted in any attitude. For additional vibration isolation, an external suspension system may be used. 8.0 SCSI Interface This section contains a brief summary of the SCSI Interface implemented in the CP3100. For additional details regarding the exact command description block format, please refer to the Second Generation SCSI Interface Manual. 8.1 SCSI Commands Format Unit 04H Inquiry 12H Mode Select 15H Mode Sense 1AH Read 08H Read Buffer 3CH Read Capacity 25H Read Defect Data 37H Read Extended 28H Read Long 3EH Reassign Blocks 07H Release 17H Request Sense 03H Reserve 16H Re-zero Unit 01H Seek 0BH Seek Extended 2BH Send Diagnostic 1DH Start/Stop Unit 1BH Test Unit Ready 00H Verify 2FH Write 0AH Write and Verify 2EH Write Buffer 3BH Write Extended 2AH Write Long 3FH 8.2 Cable Requirements A 50-conductor flat cable or 25-conductor twisted pair cable is required. The maximum cable length is 6.0 meters (19.68 ft.) The cable impedance should be 132 ohm -+10% with a minimum conductor size of 28 AWG. 8.3 Connector Requirements The drive connector is a 50-conductor shrouded connector which consists of two rows of 25 male pins on 100 mil centers. The recommended mating connector is MOLEX part number 15-29-7950 or equivalent. The pin assignments for this connector are shown in the following table: Signal Pin -DB(0) 2 -DB(1) 4 -DB(2) 6 -DB(3) 8 -DB(4) 10 -DB(5) 12 -DB(6) 14 -DB(7) 16 -DB(P) 18 GND 20 GND 22 GND 24 TERMPWR 26 GND 28 GND 30 -ATN 32 GND 34 -BSY 36 -ACK 38 -RST 40 -MSG 42 -SEL 44 -C/D 46 -REQ 48 -I/O 50 The minus sign (-) indicates active low. All odd pins except pin 25 must be connected to ground. Pin 25 is left open. 8.4 Electrical Description The CP3100 drive uses open collector drivers. All assigned signals are terminated with 220 ohms to +5 volts and 330 ohms to ground. The termination resistors are removable for multi-device configurations. 8.4.1 Output Characteristics Each signal driven by the drive has the following output characteristics when measured at the drive connector: Signal Assertion 0.0VDC to 0.4 VDC Min. Driver Output Cap. 48 ma (sinking) at 0.5 VDC Signal Negation 2.5 VDC to 5.25 VDC 8.4.2 Input Characteristics Each signal received by the drive must have the following input characteristics when measured at the drive connector: Signal Assertion 0.0VDC to 0.8 VDC Maximum Total Input Load -0.4 ma at 0.4 VDC Signal False 2.0 VDC to 5.25 VDC 8.4.3 Terminator Power Terminator power (TERMPWR) is supplied through a diode to prevent the back-flow of power to the drive. TERMPWR has the following characteristics: Supply Voltage 4.0VDC to 5.25 VDC Min Source Drive Capability 800 ma Maximum Sink Capability 1.0 ma sink capability with a 1.0 amp fuse* *Except for the purpose of providing power to an internal terminator.