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Summary of Contents for Conner CFP1080E
- Page 1 CFP1080S/CFP1080E Intelligent Disk Drive Product Manual Production Release Per ECO 6561 P/N 20401007-001 Revision A August 1995 3081 Zanker Road San Jose, CA 95134-2128 (408) 456-4500...
- Page 3 Printing Office, Washington, DC 20402. Warning: Changes or modifications made to this equipment which have not been expressly approved by Conner Peripherals, Inc. may cause radio and television interference problems that could void the user's authority to operate the equipment.
- Page 4 Conner Peripherals, Inc. Conner Peripherals, Inc. provides this manual "as is," without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Conner Peripherals, Inc.
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Page 5: Table Of Contents
Table of Contents 1. Drive Overview Drive Description Drive Features Drive Components Mechanical Design Features Drive Assembly Housing Drive Motor and Spindle Head Positioning Mechanism Read/Write Heads and Disks Data and Power Connections Electrical Design Features Integrated Circuit Circuit Board Read/Write Channel Firmware 2. - Page 6 Attaching Power to the Drive - CFP1080E Mounting the Drive - CFP1080E Installing a CFP1080S Setting the Drive's Jumpers - CFP1080S Setting the SCSI Bus Address - CFP1080S Disabling Spin-Up at Power On - CFP1080S Disabling SCSI Bus Terminator Power (TERMPWR) - CFP1080S...
- Page 7 Single Connector Attachment (SCA) Signal Definitions Power Spindle Sync LED Out Motor Start Controls SCSI ID Selection Interface Pin Assignments Model CFP1080S (Narrow, 50-pin SCSI) External Terminator Power Internal Termination Cable Requirements Connector Requirements Interface Pin Assignments Interface Timing Requirements 6.
- Page 8 Table of Contents Conner CFP1080E/CFP1080S Page iv Conner CFP1080E/CFP1080S...
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Page 9: Drive Overview
Drive Overview Drive Description The CFP1080S and CFP1080E are high performance 3.5-inch low-profile (1.0 inch high) disk drives. The both offer 11 millisecond average seek time for Reading, 11.5 millisecond seek time for Writing, with an average latency of only 5.56ms. -
Page 10: Drive Features
Overview of the Drives Drive Features The drives provide the following features: • 256 KB segmented cache buffer in the CFP1080S and 512 KB segmented cache buffer in the CFP1080E. • Tagged Command Queuing with Minimum Access Time Re-ordering and Write/Read Coalescing •... -
Page 11: Drive Components
Overview of the Drives Chapter 1 Drive Components The drive is composed of mechanical, electrical, and firmware elements. Mechanical Design Features The drive’s hardware includes the components described in the following sections. Figure 1-1 shows the drive top level assembly. Figure 1-1 Drive Top Level Assembly Damper... -
Page 12: Drive Assembly Housing
Figure 1-2 Head-Disk Assembly Filter Top Cover Gasket Disk Clamp Preamplifier/ Disk (1 of 3) Flex Circuit Assembly Disk Head-Stack Spacer (1 of 2) Assembly Actuator Magnet Assembly Spindle Motor 080S_1_2 Base Assembly Page 4 Conner CFP1080E/CFP1080S... -
Page 13: Drive Motor And Spindle
Overview of the Drives Chapter 1 Drive Motor and Spindle A brushless DC direct-drive motor assembly is mounted on the drive’s base. The motor rotates the drive’s spindle at 5400 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. -
Page 14: Read/Write Channel
Chapter 1 Overview of the Drives The data buffer (cache) utilizes two 256 KB x 4 Dynamic RAMs in the CFP1080S and a single 256K x 16 Dynamic RAM in the CFP1080E. Data path integrity is ensured by appending a 4-byte CRC to blocks as they are transferred from the interface to the buffer through the SCSI controller chip. - Page 15 Overview of the Drives Chapter 1 The SCSI control microcode resides in both ROM and RAM. The RAM portion of the code can be upgraded in the field with the SCSI Write Buffer command or through the drive’s serial port. Additional information regarding the RAM code can be found in Chapter 3, page 21.
- Page 16 Chapter 1 Overview of the Drives Page 8 Conner CFP1080E/CFP1080S...
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Page 17: Specifications
Specifications Specifications in this Chapter This chapter provides the following specifications for the drive: • drive capacity • physical configuration • performance characteristics • read/write characteristics • reliability • power requirements • environmental tolerances • safety standards • physical characteristics Technical Reference Manual Page 9... -
Page 18: Drive Capacity
Chapter 2 Specifications Drive Capacity Formatted Capacity • CFP1080S: 1080.7MB • CFP1080E: 1080.7MB *1MB is equal to 10 or 1,000,000 bytes Physical Configuration Specification CFP1080S CFP1080E: Disk Type Sputtered Thin Film Sputtered Thin Film Head Type Thin Film Thin Film... -
Page 19: Performance Characteristics
Specifications Chapter 2 Performance Characteristics Seek Times (typical) • Track to Track: 3.0 msec • Average (read/write): 11/11.5 msec • Full Stroke: 26 msec 1 Drive operating at nominal DC input voltage and nominal operating temperature. 2 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. -
Page 20: Read/Write Characteristics
Data Transfer Rate • To/from Buffer, synchronous narrow: 10.0 MByte/second • To/from Buffer, synchronous wide (CFP1080E only): 20.0 MByte/second Maximum Synchronous Transfer Offset: • 15 bytes Maximum Tagged Command Queue Depth: • 32 commands Page 12 Conner CFP1080E/CFP1080S... -
Page 21: Reliability
• 5 years Start/Stop cycles • 40,000 minimum Mean Time Between Failures: • 500,000 power-on hours* * Projected MTBF based on comparison of similar Conner products Mean Time to Repair • 10 minutes, typical Preventive Maintenance • None Power Requirements... -
Page 22: Environmental Tolerances
700 Khz to 1.5 Mhz Acoustic Noise: • The acoustic level will not exceed 37 dBA sound pressure at a distance of 1 meter from the drive or 4.3 Bels sound power in Idle Mode . Page 14 Conner CFP1080E/CFP1080S... -
Page 23: Safety Standards
Specifications Chapter 2 Safety Standards The drive is designed to comply with relevant product safety standards, including: • UL 478, 5th edition, Standard for Safety of Information Processing and Business Equipment • UL 1950, Standard for Safety of Information Technology Equipment •... -
Page 24: Physical Characteristics - Cfp1080E
2.363 + .0035 6X 6-32 UNC-2B .16 MAX. INSERTION 2.375 + .005 .630 + .0035 .234 + .005 .250 + .010 .125 + .005 3.750 + .005 4.00 + .020 3.425 + .015 .184 + .025 080E_2_1 Page 16 Conner CFP1080E/CFP1080S... -
Page 25: Physical Characteristics - Cfp1080S
Specifications Chapter 2 Physical Characteristics - CFP1080S Height: • 1.0 inch + .030 Width: • 4.0 inches + .020 Depth: • 5.75 inches + .020 Weight: • 1.3 pounds Figure 2-2 The Drive’s Physical Dimensions .192 + .022 .142 + .025 .335 + .015... - Page 26 Chapter 2 Specifications Page 18 Conner CFP1080E/CFP1080S...
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Page 27: Drive Operation
Drive Operation Drive Functions This chapter describes certain operational aspects of the drive, including discussions of: • drive operational modes • error correction • read error recovery • downloadable microcode • buffer management Drive Operational Modes The drive operates in the following modes: •... -
Page 28: Error Correction
13. Read retry with servo offset +8% 14. Read retry with servo offset -8% 15. Normal read retry 16. Software (2-burst) EDAC correction attempt If retries are disabled, the drive retries the operation one time before it reports an error. Page 20 Conner CFP1080E/CFP1080S... -
Page 29: Downloadable Microcode
How the Drive Operates Chapter 3 Downloadable Microcode The SCSI interface code is split into three functional parts which execute from either ROM or RAM. The SCSI boot code resides in ROM with the disk control code. It contains the boot-up routines and supports commands such as INQUIRY, TEST UNIT READY, REQUEST SENSE, START/STOP UNIT, which do not require media access. -
Page 30: Buffer Management And Command Execution
If there is no cache hit, the next inactive segment is selected and a read from disk is initiated into that segment. The retention of data already transferred to the host is controlled by the state of the Demand Read Retention Priority value in the Caching Page. Page 22 Conner CFP1080E/CFP1080S... - Page 31 How the Drive Operates Chapter 3 The SCSI control firmware always initiates a "read forever" command and the buffer segment is treated as a circular buffer. Data is retained until the control firmware determines that it is no longer needed or that performance would be improved if additional blocks were prefetched.
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Page 32: Write Caching
If AWRE is set to 1: the drive will attempt to reassign the block and complete the operation. If the reassignment fails, the drive will report Check Condition status on the next command and the response to a Request Sense command will be a deferred error. Page 24 Conner CFP1080E/CFP1080S... -
Page 33: Scsi Queuing Control Code
How the Drive Operates Chapter 3 SCSI Queuing Control Code The drive, operating using the SCSI Queuing control code, can queue up to 32 commands. Reads and writes are re-ordered using minimum access time prediction. Sequential Read and Write commands are coalesced to maximize performance. - Page 34 Chapter 3 How the Drive Operates Page 26 Conner CFP1080E/CFP1080S...
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Page 35: Installing The Drive
Installing the Drive Take These Precautions To protect your equipment from electrostatic damage, perform the installation at a static-safe workstation. If one is not available, follow these guidelines: 1. Work in an uncarpeted area. 2. Before removing the equipment from its anti-static bag, discharge static electricity by touching your computer's metal chassis (or any other grounded object) while touching the anti-static bag. -
Page 36: Installing A Cfp1080E
Setting the SCSI ID SCSI ID SCSI ID(0) SCSI ID(1) SCSI ID(2) Open Open Open Ground Open Open Open Ground Open Ground Ground Open Open Open Ground Ground Open Ground Open Ground Ground Ground Ground Ground Page 28 Conner CFP1080E/CFP1080S... -
Page 37: Disabling Spin-Up At Power On - Cfp1080E
Installing the Drive Chapter 4 Disabling Spin-Up at Power On - CFP1080E Spin up upon application of power to the drive can be disabled by grounding the RMT_START line on the interface. Disabling spin up on application of power can also be enabled by setting the DSPN bit in MODE SELECT page 00 (Vendor Specific Parameters). - Page 38 There are four +12 volt and three +5 volt line pairs carrying power to the drive on the SCA so spin up must be staggered to connect two drives on the same cable. Otherwise, there should only be one drive per cable. Page 30 Conner CFP1080E/CFP1080S...
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Page 39: Attaching Power To The Drive - Cfp1080E
Installing the Drive Chapter 4 Attaching Power to the Drive - CFP1080E The drive is powered through the SCA interface. Mounting the Drive - CFP1080E The 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 will tolerate. -
Page 40: Installing A Cfp1080S
Installing the Drive Installing a CFP1080S The following paragraphs describe the installation procedure for an 8-bit, 50-pin SCSI-2 interface, model CFP1080S drive. Setting the Drive's Jumpers - CFP1080S Figure 4-1 shows you where the drive’s jumpers are located. Figure 4-1 Jumper Locations... -
Page 41: Setting The Scsi Bus Address - Cfp1080S
Installing the Drive Chapter 4 Setting the SCSI Bus Address - CFP1080S There are three jumpers available for configuration of the SCSI ID: ID0, ID1, and ID2 located on two different headers. One set is located at J4, behind the SCSI interface connector. -
Page 42: Disabling Spin-Up At Power On - Cfp1080S
Note: In = Ground or TTL Low and Out = Open or TTL High. The signal is on pin 7 and the low reference is on pin 8 of both J4 and J6. Disabling SCSI Bus Terminator Power (TERMPWR) - CFP1080S Power to the on-board terminators is provided by the higher of the voltage supplied at Pin #26, J2 or the voltage level at the 5 Volt power input to the drive minus one diode drop. -
Page 43: Setting The Bus Termination - Cfp1080S
Installing the Drive Chapter 4 Setting the Bus Termination - CFP1080S This drive provides on-board Alternative 2 active termination for the SCSI bus. The termination resistors, which are contained in two Single Inline Packs (SIPs) should be removed from the drive unless it is a SCSI device at the physical end of the bus. -
Page 44: Cabling The Drive - Cfp1080S
Chapter 4 Installing the Drive Cabling the Drive - CFP1080S Connect the SCSI interface cable and the spindle synchronization cable (when needed) as shown in Figure 4-3. Figure 4-3 Connecting the cabling 50-pin SCSI Interface Spindle Synchronization Connection Pin 1 (typically... -
Page 45: Attaching Power To The Drive - Cfp1080S
Installing the Drive Chapter 4 Attaching Power to the Drive - CFP1080S The drive has a 4-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. - Page 46 Chapter 4 Installing the Drive Page 38 Conner CFP1080E/CFP1080S...
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Page 47: Interface Physical Characteristics
Interface Physical Characteristics Electrical Description The paragraphs which follow describe the input and output electrical characteristics of the drive. Output Characteristics The output drivers for Data, Parity, REQ and ACK are optionally active negation. When they are set for active negation, they have three states: asserted, negated and high impedance. -
Page 48: Input Characteristics
The sections which follow describe, for each of the drive models, those SCSI characteristics which vary from model to model. These characteristics include: • Termination • Cable requirements • Connector requirements • Connector Pin assignments • Interface Timing requirements Page 40 Conner CFP1080E/CFP1080S... -
Page 49: Cfp1080E (Wide, 80-Pin Single Connector Attachment [Sca])
SCSI Physical Characteristics Chapter 5 CFP1080E (WIDE, 80-pin Single Connector Attachment [SCA]) External Terminator Power The interface connector carries both power and ground so a separate TERMPWR interface line is not provided. Internal Termination This version of the drive has no on-board termination so the drive must be externally terminated. -
Page 50: Connector Requirements
The LED out signal is designed to pull down the cathode of an LED. The anode is attached to the proper +5 volt supply through an appropriate current limiting resistor. The LED and the current limiting resistor are external to the drive. Page 42 Conner CFP1080E/CFP1080S... -
Page 51: Motor Start Controls
SCSI Physical Characteristics Chapter 5 Table 5-5 Output Characteristics of the LED Driver Signal STATE Current Drive Available Output Voltage < 100 µA Drive LED Off 0 < I Drive LED On < -30 mA 0 < V < 0.8 Volts Motor Start Controls Table 5-6 Electrical Characteristics for RMT_START and DLYD_START... -
Page 52: Interface Pin Assignments
+5 Volt +5 Volt Ground SYNC RMT_START DLYD_START SCSI ID (0) SCSI ID (1) SCSI ID (2) SCSI ID (3) Notes: 1. The minus sign (-) indicates active low. 2. Pins marked Reserved are not connected. Page 44 Conner CFP1080E/CFP1080S... -
Page 53: Model Cfp1080S (Narrow, 50-Pin Scsi)
SCSI Physical Characteristics Chapter 5 Model CFP1080S (Narrow, 50-pin SCSI) External Terminator Power Power to the on-board terminators is provided by the higher of the voltage supplied at Pin #26, J2 or the voltage level at the 5 Volt power input to the drive minus one diode drop. -
Page 54: Cable Requirements
Table 5-11 Interface Cable Electrical Characteristics Specification Value Signal Attenuation 0.095 dB maximum per meter at 5 Mhz Pair-to-Pair Propagation Delay Delta 0.20 ns maximum per meter DC Resistance 0.230 ohms maximum per meter at 20° C Page 46 Conner CFP1080E/CFP1080S... -
Page 55: Connector Requirements
SCSI Physical Characteristics Chapter 5 Connector Requirements The connector on the drive is a 50-position header which consists of 2 rows of 25 male pins on 0.100 inch centers. The mating connector is a SCSI-2 Non-shielded Alternative 1, A-cable connector which is shown below: Figure 5-2 A-Cable Connector Contact 50... -
Page 56: Interface Pin Assignments
-REQ -I/O Notes: 1. The minus sign (-) indicates active low. 2. All odd pins except pin 25 must be connected to ground. Pin 25 is left open. 3. Pins marked Reserved are connected to ground. Page 48 Conner CFP1080E/CFP1080S... -
Page 57: Interface Timing Requirements
SCSI Physical Characteristics Chapter 5 Interface Timing Requirements Unless otherwise noted, the delay-time measurements are calculated from signal conditions existing at the drive's own SCSI bus connector. Normally these measurements (except cable skew delay) can be made without considering delays in the cable. - Page 58 Chapter 5 SCSI Physical Characteristics Page 50 Conner CFP1080E/CFP1080S...
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Page 59: Scsi Command Implementation
SCSI Command Implementation This section contains a list of the SCSI Interface commands implemented in the drive and the MODE SENSE pages specifically for the drives covered by this manual. For additional details regarding command descriptions, please refer to the Eighth Generation Disk Drive SCSI Interface Manual. SCSI Command Summary Following is a list of commands that the drive supports: Format Unit... -
Page 60: Format Device Page - 03 H
Track Skew Factor (LSB) Cylinder Skew Factor (MSB) Cylinder Skew Factor (LSB) Reserved SSEC HSEC SURF 21-23 Reserved * These values are dependent upon the active notch. The values shown are for the default Active Notch value of 1. Page 52 Conner CFP1080E/CFP1080S... - Page 61 SCSI Command Implementation Chapter 6 Tracks Per Zone: Defines the number of tracks per zone to use in dividing the capacity of the drive for the purpose of allocating alternate sectors. A value of zero means that one zone is defined for the entire drive. Alternate Sectors Per Zone: Defines the number of spare sectors per zone the drive reserves for defect handling.
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Page 62: Rigid Disk Geometry Page - 04 H
Reserved Medium Rotation Rate (MSB) Medium Rotation Rate (LSB) 22-23 Reserved Only one copy of this page is maintained. There is only one changeable field, RPL. All other fields are described in the MODE SENSE Command. Page 54 Conner CFP1080E/CFP1080S... -
Page 63: Notch Page - 0C H
SCSI Command Implementation Chapter 6 RPL (Rotational Position Locking): Enables spindle synchronization. Setting either bit 0 or 1, or both, causes multiple drives which have their spindle synchronization (SS) pins daisy chained together to synchronize their spindles. Notch Page - 0C The Notch Page contains information which pertains to each notch of the drive. - Page 64 Chapter 6 SCSI Command Implementation Table 6-3 CFP1080E/CFP1080S - Notch Parameters Page Format Byte Rsvd Rsvd Page Code - OC H Page Length = 16 H Reserved Reserved Maximum Number of Notches (MSB) Maximum Number of Notches (LSB) Active Notch (MSB)
- Page 65 SCSI Command Implementation Chapter 6 ND (Notched Drive): If set to zero, the drive is not notched and all other parameters in this page are returned as zeros. If set to one, the drive is notched and this page defines the starting and ending boundaries for each active notch. This parameter is always set to one.
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