Fujitsu MAN3184MC - Enterprise 18.4 GB Hard Drive Product/Maintenance Manual
Fujitsu MAN3184MC - Enterprise 18.4 GB Hard Drive Product/Maintenance Manual

Fujitsu MAN3184MC - Enterprise 18.4 GB Hard Drive Product/Maintenance Manual

Manual/user guide
Table of Contents




Table of Contents

Subscribe to Our Youtube Channel

Summary of Contents for Fujitsu MAN3184MC - Enterprise 18.4 GB Hard Drive

  • Page 2 In addition, FUJITSU assumes no liability with respect to the application or use of any porduct or system in accordance with the descriptions or instructions contained herein; including any liability for incidental or consequential damages arising therefrom.
  • Page 3 REVISION RECORD Edition Date published Revised contents Jun., 2001 Specification No.: C141-E128-**EN C141-E128-01EN...
  • Page 4 Related Standards Specifications and functions of products covered by this manual comply with the following standards. Standard (Text) No. Name Enacting Organization ANSI X3.131-1986 American National Standard for American National Information Systems—Small Computer Standards Institute System Interface (SCSI) (ANSI) ANSI X3.131-1994 American National Standard for American National Information Systems—Small Computer...
  • Page 5 PREFACE This manual describes the MAN3735MC/MP, MAN3367MC/MP, MAN3184MC/MP (hereafter, MAN series), 3.5 type fixed disk drives with an embedded SCSI controller. This manual details the specifications and functions of the above disk drive, and gives the requirements and procedures for installing it into a host computer system. This manual is written for users who have a basic understanding of fixed disk drives and their use in computer systems.
  • Page 6 APPENDIX A to D The appendixes give supplementary information, including the locations of mounting setting terminals and connectors, a list of setting items, the signal assignments of interface connectors, lists of model names and product numbers, and SCSI interface functions. The model numbers have a suffix that describes the electrical requirements of the SCSI interface between host system and disk drive, the data formatted at the factory and device type.
  • Page 7 Failure of the MAN series intelligent disk drive is defined as a failure requiring adjustments, repairs, or replacement. Fujitsu is not responsible for drive failures caused by misuse by the user, poor environmental conditions, power trouble, host problems, cable failures, or any failure not caused by the drive itself.
  • Page 8: Important Alert Items

    Important Alert Items Important Alert Messages The important alert messages in this manual are as follows: A hazardous situation could result in minor or moderate personal injury if the user does not perform the procedure correctly. This alert signal also indicates that damages to the product or other property may occur if the user does not perform the procedure correctly.
  • Page 9 Do not open the DE in the field because it is a completely sealed room. Data loss Save data stored on the disk drive before requesting repair. Fujitsu does not assume responsibility if data is destroyed during servicing or repair.
  • Page 10 MANUAL ORGANIZATION PRODUCT/ 1. General Description MAINTENANCE 2. Specifications MANUAL 3. Data Format 4. Installation Requirements (This manual) 5. Installation 6. Diagnostics and Maintenance 7. Error Analysis 8. Principle of Operation SCSI Physical 1. SCSI Bus Interface 2. SCSI Message Specifications 3.
  • Page 11: Table Of Contents

    CONTENTS page CHAPTER 1 GENERAL DESCRIPTION ................1-1 Standard Features ......................1-2 Hardware Structure......................1-5 System Configuration ....................... 1-8 CHAPTER 2 SPECIFICATIONS................... 2-1 Hardware Specifications....................2-1 2.1.1 Model name and part number................... 2-1 2.1.2 Function specifications ..................... 2-2 2.1.3 Environmental specifications ................... 2-4 2.1.4 Error rate...........................
  • Page 12 4.3.1 68 pin connector 16-bit SCSI model (MP model) ............4-11 4.3.2 SCA2 type SCSI model (MC model) ................4-19 4.3.3 Cable connector requirements ..................4-20 4.3.4 External operator panel (MP model) ................4-22 CHAPTER 5 INSTALLATION ....................5-1 Notes on Handling Drives ....................5-1 Connections ........................
  • Page 13 6.3.1 Initial seek operation check ....................6-12 6.3.2 Operation test........................6-12 6.3.3 Diagnostic test ........................6-12 Troubleshooting Procedures ..................... 6-13 6.4.1 Outline of troubleshooting procedures ................6-13 6.4.2 Troubleshooting with disk drive replacement in the field ..........6-13 6.4.3 Troubleshooting at the repair site ..................6-15 6.4.4 Troubleshooting with parts replacement in the factory ............
  • Page 14 Servo Control........................8-9 8.7.1 Servo control circuit ......................8-9 8.7.2 Servo format ........................8-10 8.7.3 Servo frame format......................8-12 8.7.4 Spindle motor control ....................... 8-12 8.7.5 Voice coil motor control....................8-13 APPENDIX A LOCATIONS OF CONNECTORS AND SETTING TERMINALS .... A-1 Locations of Connectors and Setting Terminals (MAH series MC model)......
  • Page 15 FIGURES page Figure 1.1 MAN series MC outer view .....................1-5 Figure 1.2 MAN series MP outer view......................1-6 Figure 1.3 Disk/head configuration......................1-7 Figure 1.4 System configuration .......................1-8 Figure 3.1 Cylinder configuration ......................3-2 Figure 3.2 Spare area in cell........................3-5 Figure 3.3 Alternate cylinder........................3-5 Figure 3.4 Track format ..........................3-6 Figure 3.5 Track skew/cylinder skew......................3-7 Figure 3.6 Sector format..........................3-8...
  • Page 16 Figure 4.22 SCA2 type SCSI connector....................4-20 Figure 4.23 External operator panel circuit example ................4-22 Figure 5.1 SCSI bus connections (1 of 2)....................5-4 Figure 5.1 SCSI bus connections (2 of 2)....................5-4 Figure 5.2 IDD setting terminals position ....................5-5 Figure 5.3 Setting terminals (CN2 MP model only) .................5-6 Figure 5.4 Checking the SCSI connection (A) ..................5-14 Figure 5.5 Checking the SCSI connection (B) ..................5-15 Figure 6.1 Revision label...........................6-9...
  • Page 17 TABLES page Table 2.1 Function specifications ......................2-2 Table 2.2 Environmental/power requirements..................2-4 Table 2.3 SCSI function specifications ....................2-7 Table 3.1 Zone layout and track capacity (MAN series) .................3-3 Table 3.4 Format capacity........................3-10 Table 4.1 Surface temperature check point....................4-6 Table 4.2 Recommended components for connection ................4-21 Table 5.1 SCSI ID setting (CN2 on MP model only) ................5-7 Table 5.2...
  • Page 18 This page is intentionally left blank.
  • Page 19: Chapter 1 General Description

    CHAPTER 1 GENERAL DESCRIPTION Standard Features Hardware Structure System Configuration This chapter describes the feature and configuration of the intelligent disk drives (IDD). IDDs are high performance large capacity 3.5 type fixed disk drives with an embedded SCSI controller. The interface between the IDD and host system is based on SCSI (Small Computer System Interface) standard [ANSI X3.131 - 1986: Small Computer System Interface (SCSI), ANSI X3.131-1994: Small Computer System Interface - 2 (SCSI-2)].
  • Page 20: Standard Features

    Standard Features Compactness Since the SCSI controller circuit is embedded in the standard 3.5 type fixed disk drive form factor, the IDD is extremely compact. The IDD can be connected directly to the SCSI bus of the host system. SCSI/CCS standard The IDD provides not only SCSI basic functions but also the following features: •...
  • Page 21 Note: The maximum data transfer rate in asynchronous mode may be limited by the response time of initiator and the length of SCSI bus length. The maximum data transfer rate in synchronous mode may be limited by the cable length, transmission characteristics of the SCSI bus and the connected SCSI device number.
  • Page 22 (10) Error recovery The IDD can try to recover from errors in SCSI bus or the disk drive using its powerful retry processing. If a recoverable data check occurs, error-free data can be transferred to the initiator after being corrected in the data buffer. The initiator software is released from the complicated error recover processing by these error recovery functions of the IDD.
  • Page 23: Hardware Structure

    (18) Low power consumption By using highly integrated LSI components, the power consumption of the IDD is very low, and this enables the unit to be used in wide range of environmental conditions. (19) Low noise and low vibration The noise level is low; approx. 3.9/3.6 bels for MAN series. This makes it ideal for office use. (20) Microcode downloading The IDD implements the microcode download feature.
  • Page 24 Figure 1.2 MAN series MP model outer view Disks The disks have an outer diameter of 84 mm (3.3 inch) outer diameter and 25 mm (0.98 inch) inner diameter for MAN series. The disks are good for at least 20,000 contact starts and stops. Each model contains following number of disks.
  • Page 25: Figure 1.3 Disk/Head Configuration

    Heads The MR (Magnet - Resistive) of the CSS (contact start/stop) type heads are in contact with the disks when the disks are not rotating, and automatically float when the rotation is started. Figure 1.3 shows the configuration of disks and heads MAN3735 MAN3367 MAN3184...
  • Page 26: System Configuration

    Read/write circuit The read/write circuit utilizes a read channel mounted with a head IC that supports high-speed transmission and an MEEPR4ML (Modified Enhanced Extended Partial Response Class 4 Maximum Likelihood) modulation/demodulation circuit in order to prevent errors being triggered by external noise and to improve data reliability. Controller circuit The controller circuit uses LSIs to increase the reliability and uses a high speed microprocessing unit (MPU) to increase the performance of the SCSI controller.
  • Page 27 SCSI bus configuration Up to eight SCSI devices operating as an initiator or a target can be connected to the SCSI bus for the 8-bit SCSI and up to 16 SCSI devices operating as an initiator or a target can be connected to the SCSI bus for the 16-bit SCSI in any combination.
  • Page 28 This page is intentionally left blank.
  • Page 29: Chapter 2 Specifications

    CHAPTER 2 SPECIFICATIONS Hardware Specifications SCSI Function Specifications This chapter describes specifications of the IDD and the functional specifications of the SCSI. Hardware Specifications 2.1.1 Model name and part number Each model has a different recording capacities and interface connector type when shipped. (See Appendix D for the model name (type) and product number.) The data format can be changed by reinitializing with the user's system.
  • Page 30: Function Specifications

    2.1.2 Function specifications Table 2.1 shows the function specifications of the IDD. Table 2.1 Function specifications Specification Item MAN3735 series MAN3367 series MAN3184 series Formatted capacity/device (*1) 73.49 GB 36.74 GB 18.37 GB Number of disks Number of heads Number of cylinders (*2) 29,902 29,950 30,050...
  • Page 31 The formatted capacity can be changed by changing the logical block length and using spare sector (*1) space. See Chapter 3 for the further information. The formatted capacity listed in the table is an estimate for 512 bytes per sector. The number of user cylinders indicates the max., and includes the alternate cylinder.
  • Page 32: Environmental Specifications

    2.1.3 Environmental specifications Table 2.2 lists environmental and power requirements. Table 2.2 Environmental/power requirements Specification Item MAN3735 series MAN3367 series MAN3184 series Operating 5 to 50°C Non-operating –10 to 60°C Transport (within a –40 to 60°C Temperature week) (*1) DE surface temperature 5 to 55°C at operating Gradient...
  • Page 33: Error Rate

    At power-off state after installation (*4) Vibration displacement should be less than 2.5 mm. Input voltages are specified at the connector. (*5) The terminator power pin (SCSI connector) which supplies power to other terminators is not used (*6) (See Section 4.3). High frequency noise is less than 100 mVp-p.
  • Page 34 Failure of the equipment means failure that requires repair, adjustments, or replacement. Mishandling by the operator, failures due to bad environmental conditions, power trouble, host system trouble, cable failures, or other failures not caused by the equipment are not considered. Mean Time To Repair (MTTR) MTTR is the average time taken by a well-trained service mechanic to diagnose and repair a drive malfunction.
  • Page 35: Scsi Function Specifications

    SCSI Function Specifications Table 2.3 shows the SCSI functions provided with the IDD. Table 2.3 SCSI function specifications Item Specification Ο Single-ended type × HVD type (High Voltage Differential) Ο LVD type (Low Voltage Differential) Electrical Ο 160/m LVD type (Low Voltage Differential) requirements Position where the terminating (*1)
  • Page 36 This page is intentionally left blank.
  • Page 37: Chapter 3 Data Format

    CHAPTER 3 DATA FORMAT Data Space Logical Data Block Addressing Defect Management This chapter explains data space definition, logical data block addressing, and defect management on the IDD. Data Space The IDD manages the entire data storage area divided into the following three data spaces. •...
  • Page 38: Figure 3.1 Cylinder Configuration

    Cylinder –85 Internal test cylinder Internal test space Cylinder –78 SAS69 Cylinder –73 System space • Cylinder –4 Cylinder 0 Primary Cylinder 0 Cylinder 1 • • Primary Cylinder (n–1) User space • • n–2 n–1 Spare sector for each cylinder n = MAN3735 series: 29,902 MAN3367 series: 29,950 MAN3184 series: 30,050...
  • Page 39: Table 3.1 Zone Layout And Track Capacity (Man Series)

    Table 3.1 Zone layout and track capacity (MAN series) Cylinder Zone Byte/track Sector/track MAN3735 series MAN3367 series MAN3184 series 0 - 500 503,342 501 - 2,301 485,746 2,302 - 4,102 485,746 4,103 - 5,983 476,708 5,984 - 7,884 464,618 7,885 - 9,885 448,818 9,886 - 11,886 438,224...
  • Page 40: Alternate Spare Area

    A number staring with 0 is assigned to each cylinder required in the user space in ascending order. If the number of cylinders do not reach the maximum, the rest of the cylinders will not be used. Always one alternate cylinders can be established in the user space. Alternate cylinders will be used for alternate blocks when primary cylinders in the user space are used up.
  • Page 41: Track Format

    Cell Note: This drive manages alternate spare areas for each cell, which is a set of cylinders. The default value for the number of cylinders is four. Figure 3.2 Spare area in cell An alternate cylinder is used when spare sectors in a cell are used up or 0 is specified as the number of spare sectors in a cell.
  • Page 42: Figure 3.4 Track Format

    5.99 msec Servo frame n = 305 (zone 0) ~ 494 (zone 17) Figure 3.4 Track format Track skew and cylinder skew To avoid waiting for one turn involved in head and cylinder switching, the first logical data block in each track is shifted by the number of sectors (track skew and cylinder skew) corresponding to the switching time.
  • Page 43: Sector Format

    Figure 3.5 Track skew/cylinder skew The number of physical sectors (track skew factor and cylinder skew factor) corresponding to the skew time varies depending on the logical data block length because the track skew and the cylinder skew are managed for individual sectors. The IDD automatically determines appropriate values for the track skew factor and the cylinder skew factor according to the specified logical data block length.
  • Page 44: Figure 3.6 Sector Format

    DATA1 SM2 DATA2 BCRC Sync Servo DATA1 SM2 DATA3 PAD G2 DATA1 SM2 DATA4 BCRC ECC Sync Sync 6 bytes 12 bytes 8 bytes PLO Sync 36 bytes 4 bytes 2 bytes BCRC 4 bytes 60 bytes 6 bytes DATA1 24 bytes DATA2 488 bytes...
  • Page 45: Format Capacity

    BCRC It is a 4-byte error detection code. Errors in the ID field. Single burst errors with lengths of up to 32 bits for each logical block can be detected. This is the 60-byte code that allows detection and correction of errors in the data field, which is capable of correcting the single burst error up to 240 bits max.
  • Page 46: Logical Data Block Addressing

    Table 3.4 Format capacity Model Data heads Data block length User blocks Format capacity (GB) MAN3735 series 143,550,456 73.49 MAN3367 series 71,771,688 36.74 MAN3184 series 35,885,448 18.37 Note: Total number of spare sectors is calculated by adding the number of spare sectors in each primary cylinder and the number of sectors in the alternate cylinders.
  • Page 47: Defect Management

    When the logical data block is allocated, some sectors (track skew and cylinder skew) shown in Figure 3.5 are provided to avoid waiting for one turn involving head and cylinder switching at the location where the track or the cylinder is physically switched. See Subsection 3.3.2 for defective/alternate block treatment and the logical data block allocation method in case of defective sectors exist on the disk.
  • Page 48 Spare sectors to which alternate blocks are allocated can be provided in either "spare sectors in a cylinder" or "alternate cylinders". See Subsection 3.1.2 for details. The INIT can specify the size and area for spare sectors by the MODE SELECT command at the time of the initialization of the disk.
  • Page 49: Figure 3.7 Alternate Block Allocation By Format Unit Command

    : n represents a logical data block number : Defective sector : Unused spare sector Figure 3.7 Alternate block allocation by FORMAT UNIT command If the data block verifying operation (certification) is not permitted (DCRT flag = 0) in the FORMAT UNIT command, the IDD checks all initialized logical data blocks by reading them out after the above alternate block allocation is made to initialize (format) the disk.
  • Page 50: Figure 3.8 Alternate Block Allocation By Reassign Blocks Command

    Alternate block allocation by REASSIGN BLOCKS command When the REASSIGN BLOCKS command is specified, the alternate block is allocated to the defective logical data block specified by the initiator by means of alternate sector treatment. If there are unused spare sectors in the same cylinder as the specified defective logical data block, the alternate block is allocated to these unused spare sectors.
  • Page 51 • Automatic alternate block allocation at write operation If the AWRE flag in the MODE SELECT parameter permits the automatic alternate block allocation, the IDD executes reassign processing to all the existing sectors in the servo frame where offtrack error occurred during WRITE or WRITE EXTENDED or WRITE AND VERIFY command processing and in the next servo frame.
  • Page 52 This page is intentionally left blank.
  • Page 53: Chapter 4 Installation Requirements

    CHAPTER 4 INSTALLATION REQUIREMENTS Mounting Requirements Power Supply Requirements Connection Requirements This chapter describes the environmental, mounting, power supply, and connection requirements. Mounting Requirements 4.1.1 External dimensions Figures 4.1 to 4.2 show the external dimensions of the IDD and the positions of the holes for the IDD mounting screws.
  • Page 54: Figure 4.1 External Dimensions (Man Series Mc Model)

    The value marked with (*) indicates the dimension between mounting holes on the bottom face. Figure 4.1 External dimensions (MAN series MC model) 4 - 2 C141-E128-01EN...
  • Page 55: Figure 4.2 External Dimensions (Man Series Mp Model)

    The value marked with (*) indicates the dimension between mounting holes on the bottom face. Figure 4.2 External dimensions (MAN series MP model) C141-E128-01EN 4 - 3...
  • Page 56: Mounting

    4.1.2 Mounting The permissible orientations of the IDD are shown in Figure 4.5, and the tolerance of the angle is ±5° from the horizontal plane. (c) Vertical –1 (a) Horizontal –1 (b) Horizontal –2 Direction of gravity (d) Vertical –2 (e) Upright mounting –1 (f) Upright mounting –2 Figure 4.3...
  • Page 57 6.35 or less 6.35 or less Figure 4.4 Mounting frame structure Limitation of side-mounting Mount the IDD using the 4 screw holes at the both ends on the both sides as shown in Figure 4.5. Do not use the center hole by itself. In case of using the center hole, it must be used in combination with 2 holes on both ends.
  • Page 58: Figure 4.6 Surface Temperature Measurement Points

    Environmental temperature Temperature condition at installed in a cabinet is indicated with ambient temperature measured 3 cm from the disk drive. At designing the system cabinet, consider following points. • Make a suitable air flow so that the DE surface temperature does not exceed 55°C. •...
  • Page 59 [Surface P’] • Setting terminal (MP model only) • External operator panel connector [Surface R] • Hole for mounting screw [Surface P] [Surface Q] • Cable connection • Hole for mounting screw Figure 4.7 Service clearance area External magnetic field The drive should not be installed near the ferromagnetic body like a speaker to avoid the influence of the external magnetic field.
  • Page 60: Power Supply Requirements

    Power Supply Requirements Allowable input voltage and current The power supply input voltage measured at the power supply connector pin of the IDD (receiving end) must satisfy the requirement given in Subsection 2.1.3. (For other requirements, see Items (4) and (5) below.) Current waveform (reference) Figure 4.8 shows the waveform of +12 VDC.
  • Page 61: Figure 4.10 Power On/Off Sequence (2)

    Figure 4.9 Power on/off sequence (1) c) In a system which does not use the terminating resistor power supply signal (TERMPWR) on the SCSI bus, the requirements for +5 VDC given in Figure 4.10 must be satisfied between the IDD and the SCSI device with the terminating resistor circuit. SCSI devices with the terminating resistor...
  • Page 62: Figure 4.12 Ac Noise Filter (Recommended)

    Sequential starting of spindle motors After power is turned on to the IDD, a large amount of current flows in the +12 VDC line when the spindle motor rotation starts. Therefore, if more than one IDD is used, the spindle motors should be started sequentially using one of the following procedures to prevent overload of the power supply unit.
  • Page 63: Connection Requirements

    Connection Requirements 4.3.1 68 pin connector 16-bit SCSI model (MP model) Connectors Figures 4.13 show the locations of connectors and terminals on the 68 pin connector type 16-bit SCSI (MP) model. • Power supply connector • SCSI connector • External operator panel connector External operator panel connector (CN2) MAN series...
  • Page 64: Figure 4.14 16-Bit Scsi Interface Connector

    The tolerance is ±0.127 mm (0.005 inch) unless otherwise specified Figure 4.14 16-bit SCSI interface connector b. Power supply connector Figure 4.15 shows the shape and the terminal arrangement of the output connector of DC power supply. Figure 4.15 Power supply connector (16-bit SCSI model) SG terminal The IDD is not provided with an SG terminal (fasten tab) for DC grounding.
  • Page 65 Connector for external operator panel • Connector for 16-bit SCSI external operator panel CN1 provides connector for the external operator panel other than the SCSI bus as shown in Figure 4.16. Also, a connector for the external operator panel are provided on the IDD as shown in Figure 4.17.
  • Page 66 Figure 4.17 External operator panel connector (CN2) 4 - 14 C141-E128-01EN...
  • Page 67: Figure 4.18 16-Bit Scsi Id External Input

    External operator panel connector Signals a. 16-bit SCSI –ID3, –ID2, –ID1, –ID0: Input signals (CN1-A1, A3, A5, A7 pin and CN2-02, 04, 06, 08 pin) These signals are used for providing switches to set the SCSI ID of the IDD externally. Figure 4.18 shows the electrical requirements.
  • Page 68 b. –Fault LED: Output signal (CN1-A2 pin) The IDD indicates that the write-protect status is in effect (CN1-A12 is connected to the GND, or the CN2-9 and CN2-10 are short-circuited.) A signal for driving the LED is output. (IDD) 74LS06 or equivalent 150 Ω...
  • Page 69: Figure 4.19 Output Signal For External Led

    Figure 4.19 Output signal for external LED e. –WTP: Input signal (CN1-A12 and CN2-9, 10 pin) By connecting the CN1-A12 and CN2-10 pins to the GND, writing operations into the IDD disc media are set to disable. C141-E128-01EN 4 - 17...
  • Page 70: Figure 4.20 Scsi Cables Connection

    Cable connection requirements The requirements for cable connection between the IDD, host system, and power supply unit are given in Figure 4.20. Recommended components for connection are listed in Table 4.2. External operator panel (example) Figure 4.20 SCSI cables connection 4 - 18 C141-E128-01EN...
  • Page 71: Sca2 Type Scsi Model (Mc Model)

    4.3.2 SCA2 type SCSI model (MC model) Connectors Figure 4.21 shows the locations of connectors on the SCA2 type SCSI model. SCSI connector (including power supply connector) MAN series SCSI connector (CN1) Figure 4.21 Connectors location of MC model SCSI connector and power supply connector a.
  • Page 72: Cable Connector Requirements

    Figure 4.22 SCA2 type SCSI connector Connector for external operator panel This connector is not available for MC model. 4.3.3 Cable connector requirements Table 4.2 lists the recommended components cable connection. 4 - 20 C141-E128-01EN...
  • Page 73 Cable (AWG18 to 24) HIROSE Cable socket housing A3B-12D-2C ELECTRIC External operator HIROSE Contact A3B-2630SCC panel (CN1) ELECTRIC Cable (AWG26 to 36) FUJITSU Cable socket housing FCN-723J016/2M TAKAMIZAWA External operator FUJITSU Contact FCN-723J-G/AM panel (CN2) TAKAMIZAWA Cable (AWG28) SCSI connector...
  • Page 74: External Operator Panel (Mp Model)

    4.3.4 External operator panel (MP model) A recommended circuit of the external operator panel is shown in Figure 4.23. Since the external operator panel is not provided as an option, this panel must be fabricated at the user site referring to the recommendation if necessary.
  • Page 75: Chapter 5 Installation

    CHAPTER 5 INSTALLATION Notes on Handling Drives Connections Setting Terminals Mounting Drives Connecting Cables Confirming Operations after Installation and Preparation for Use Dismounting Drives Spare Disk Drive This chapter describes the notes on handling drives, connections, setting switches and plugs, mounting drives, connecting cables, confirming drive operations after installation and preparation for use, and dismounting drives.
  • Page 76 Unpackaging a) Use a flat work area. Check that the "This Side Up" sign side is up. Handle the package on soft material such as a rubber mat, not on hard material such as a desk. b) Be careful not to give excess pressure to the internal unit when removing cushions. c) Be careful not to give excess pressure to the PCAs and interface connector when removing the drive from the antistatic bag.
  • Page 77: Connections

    c) To prevent condensation, avoid sudden changes in temperature. Connections Figure 5.1 shows examples of connection modes between the host system and the IDD. For the 16-bit SCSI, up to 16 devices including the host adapter, IDD, and other SCSI devices can be connected to the SCSI bus in arbitrary combinations.
  • Page 78: Figure 5.1 Scsi Bus Connections (1 Of 2)

    Connecting more than one IDD (single host) Figure 5.1 SCSI bus connections (1 of 2) Connecting more than one IDD (multi-host) Figure 5.1 SCSI bus connections (2 of 2) 5 - 4 C141-E128-01EN...
  • Page 79: Setting Terminals

    Setting Terminals A user sets up the following terminals and SCSI terminating resistor before installing the IDD in the system as required. • Setting terminal: CN2 (MP model only) Figures 5.2 shows the setting terminal position. Figures 5.3 shows the allocation and default settings.
  • Page 80: Scsi Id Setting (Mp Model Only)

    Terminal power supply: Supply (LED signal) (IDD Reset signal) N.C. Force Single Ended: LVD mode Force Narrow: 16bit-SCSI Spin-up mode Write protect: enabled SCSI ID #15 Figure 5.3 Setting terminals (CN2 on MP model only) 5.3.1 SCSI ID setting (MP model only) Table 5.1 shows the SCSI ID setting.
  • Page 81: Each Mode Setting (Mp Model Only)

    Table 5.1 SCSI ID setting (CN2 on MP model only) SCSI ID Open Open Open Open Open Open Open Short Open Open Short Open Open Open Short Short Open Short Open Open Open Short Open Short Open Short Short Open Open Short Short...
  • Page 82 Motor start mode Set how to control the starting of the IDD spindle motor according to Table 5.3. This setting only determines the operation mode when the power supply is turned on or the microcode is downloaded. In both modes, stopping or restarting the spindle motor can be controlled by specifying the START/STOP UNIT command.
  • Page 83: Mode Settings

    Table 5.5 Setting of the SCSI interface operation mode (MP model only) Operation mode CN2 15-16 Follows the DIFFSNS signal level on the SCSI bus Open * Single-Ended mode Short * Set at factory shipment Setting the bus width of the SCSI interface By establishing a short-circuit between the 13 and 14 CN2 setting terminals, the bus width for the SCSI interface is forcibly set to the 8-bit bus mode.
  • Page 84: Mounting Drives

    Mounting Drives 5.4.1 Check before mounting Reconfirm if the setting terminals are set correctly according to Table 5.8 before mounting the MP model drive in the system cabinet. For setting terminals location, see Section 5.3. The MC model drive does not require the following check. Table 5.8 Setting check list (MP model only) Setting contents...
  • Page 85: Connecting Cables

    4) When an electric driver is in use, less than device specifications must be used. Connecting Cables Connect the IDD and system with the following cables. See Section 4.3 for further details of the requirements for IDD connector positions and connecting cables. •...
  • Page 86: Confirming Operations After Installation And Preparation For Use

    Confirming Operations after Installation and Preparation for use 5.6.1 Confirming initial operations This section describes the operation check procedures after power is turned on. Since the initial operation of the IDD depends on the setting of the motor start mode, check the initial operation by either of the following procedures.
  • Page 87: Checking Scsi Connection

    d) If an error is detected in initial self-diagnosis the LED blinks. In this case, it is recommended to issue the REQUEST SENSE command from the initiator (host system) to obtain information (sense data) for error analysis. IMPORTANT The LED lights during the IDD is executing a command. However, in same commands, the lighting time is only an instant.
  • Page 88: Figure 5.4 Checking The Scsi Connection (A)

    Motor starts when power is turned on Figure 5.4 Checking the SCSI connection (A) 5 - 14 C141-E128-01EN...
  • Page 89: Figure 5.5 Checking The Scsi Connection (B)

    Motor starts by START/STOP command * Executing time: about 60 seconds Figure 5.5 Checking the SCSI connection (B) C141-E128-01EN 5 - 15...
  • Page 90: Formatting

    Checking at abnormal end a) When sense data can be obtained with the REQUEST SENSE command, analyze the sense data and retry recovery for a recoverable error. Refer to Chapter 5 of SCSI Logical Interface Specifications for further details. b) Check the following items for the SCSI cable connection: •...
  • Page 91 b. Format parameter (page code = 3) Specify the number of spare sectors for each cylinder in the "alternate sectors/zone" field and specify the number of tracks for alternate cylinders (= number of alternate cylinders × number of disk drive heads) in the "alternate tracks/zone" field. It is recommended not to specify values smaller than the IDD default value in this field.
  • Page 92: Setting Parameters

    5.6.4 Setting parameters The user can specify the optimal operation mode for the user system environments by setting the following parameters with the MODE SELECT or MODE SELECT EXTENDED command: • Error recovery parameter • Disconnection/reconnection parameter • Caching parameter •...
  • Page 93 The saved value of the MODE SELECT parameter is assumed as the initial value of each parameter after the power-on, the RESET condition, or the BUS DEVICE RESET message. The INIT can change the parameter value temporary (actively) at any timing by issuing the MODE SELECT or MODE SELECT EXTENDED command with specifying "0"...
  • Page 94 Notes: The user can arbitrarily specify the following parameters according to the system requirements: • ARRE • AWRE • • The user also can arbitrarily specify parameters other than the above. However, it is recommended to use the default setting in normal operations. Disconnection/reconnection parameters (page code = 2) The following parameters are used to optimize the start timing of reconnection processing to transfer data on the SCSI bus at a read (READ or READ EXTENDED command) or write...
  • Page 95 Caching parameters The following parameters are used to optimize IDD Read-Ahead caching operations under the system environments. Refer to Chapter 2 of SCSI Logical Interface Specifications for further details. Parameter Default value • IC: Initiator control 0 (Drive-specific control (page cache)) •...
  • Page 96: Dismounting Drives

    a. Control mode parameters Parameter Default value • Queue algorithm modifier 0 (Execution sequence of read/write commands is optimized.) • QErr: Resume or abort remaining suspended 0 (command is commands after sense pending state resumed) • DQue: Disabling tagged command queuing 0 (enabled) Dismounting Drives Since dismounting the drive to check the setting terminals, change the setting, or change the drive...
  • Page 97: Chapter 6 Diagnostics And Maintenance

    CHAPTER 6 DIAGNOSTICS AND MAINTENANCE Diagnostics Maintenance Information Operation Check Troubleshooting Procedures This chapter describes diagnostics and maintenance information. Diagnostics 6.1.1 Self-diagnostics The IDD has the following self-diagnostic function. This function checks the basic operations of the IDD. • Initial self-diagnostics •...
  • Page 98 Brief test contents of self-diagnostics are as follows. a. Hardware function test This test checks the basic operation of the controller section, and contains following test. • RAM (microcode is stored) • Peripheral circuits of microprocessor (MPU) • Memory (RAM) •...
  • Page 99 The IDD does not reply to the SCSI bus for up to 2 seconds after the initial self-diagnostics is started. After that, the IDD can accept the I/O operation request correctly, but the received command, except the executable commands under the not ready state (such as INQUIRY, START/STOP UNIT), is terminated with the CHECK CONDITION status (NOT READY [=2]/logical unit not ready [=04-00]) during the interval from the spindle motor becomes stable to the IDD becomes ready.
  • Page 100: Test Programs

    When an error is detected in the self-diagnostics, the IDD terminates the SEND DIAGNOSTIC command with the CHECK CONDITION status. At this time only when an error is detected in the hardware function test, the LED on the front panel of the disk drive blinks.
  • Page 101: Maintenance Information

    Interface (SCSI bus) test The operations of the SCSI bus and data buffer on the IDD are checked with the WRITE BUFFER and READ BUFFER commands. Basic operation test The basic operations of the IDD are checked by executing self-diagnosis with the SEND DIAGNOSTIC command (see Subsection 6.1.1).
  • Page 102: Maintenance Requirements

    CAUTION Always ground yourself with a wrist strap connected to ground before handling. ESD (Electrostatics Discharge) may cause the damage to the device. To prevent electrical damage to the disk drive, turn the power off before connecting or disconnecting a cable, connector, or plug. Do not remove a PCA.
  • Page 103 The PCA cannot be replaced in the field. The DE cannot be replaced in the field. Service system and repairs Fujitsu has the service system and repair facility for the disk drive. Contact Fujitsu representative to submit information for replacing or repairing the disk drive.
  • Page 104: Maintenance Levels

    Replacement is usually done by the user, retail dealer, distributor, or OEM engineer. Factory maintenance (parts replacement) • This replacement can only be done by Fujitsu. • Replacement includes maintenance training and OEM engineer support. OEM engineers usually support retail dealers and distributors.
  • Page 105: Revision Numbers

    6.2.4 Revision numbers The revision number of the disk drive is represented with a letter and a number indicated on the revision label attached to the DE. Figure 6.1 shows the revision label format. Figure 6.1 Revision label Indicating revision number at factory shipment When the disk drive is shipped from the factory, the revision number is indicated by deleting numbers in the corresponding letter line up to the corresponding number with = (see Figure 6.2).
  • Page 106: Tools And Test Equipment

    IMPORTANT When the revision number is changed after the drive is shipped from the factory, Fujitsu issues "Engineering Change Request/Notice" in which the new revision number is indicated. When the user changes the revision number, the user should update the revision label as described in item (2) after applying the modification.
  • Page 107: Figure 6.3 Test Flowchart

    Start Start self-test by turning the power on Check host system Test results OK? (Table 6.2) Analyze system-related Host system Execute an operation error normal? test using a host computer or test equipment Replaced or repair disk drive Test results OK? Disk drive normal? Continue operation...
  • Page 108: Operation Check

    Operation Check 6.3.1 Initial seek operation check If an error is detected during initialization by the initial seek operation check routine at power-on, the LED on the front panel blinks. The spindle motor of the disk drive then stops, and the disk drive is unusable.
  • Page 109: Troubleshooting Procedures

    Troubleshooting Procedures 6.4.1 Outline of troubleshooting procedures This section explains the troubleshooting procedures for disk drive errors. Depending on the maintenance level, analyze the error to detect a possibly faulty part (disk drive, or disk drive part). Full-scale troubleshooting is usually required if the error cause is not known. If the error cause is clear (e.g., abnormal noise in disk enclosure or burning of a PCA), troubleshooting is straightforward.
  • Page 110: Table 6.2 System-Level Field Troubleshooting

    Table 6.2 System-level field troubleshooting Item Recommended work DC power cable Check that the power cable is correctly connected to the disk drive and power supply unit. AC and DC power level Check that the DC voltage is within the specified range (±5%). Check that the +5 VDC value (pins 3 and 4 of the power connector) is 4.75 to 5.25 VDC.
  • Page 111: Troubleshooting At The Repair Site

    6.4.3 Troubleshooting at the repair site For maintenance at this level, we recommend additional testing of the disk drive and signal checking. The sense data posted from the IDD helps with troubleshooting. This sense data makes the error type clear (functional, mechanical, or electrical error). Chapter 7 error analysis by sense data, and gives supplementary information on finding the error cause (faulty part).
  • Page 112: Troubleshooting With Parts Replacement In The Factory

    6.4.4 Troubleshooting with parts replacement in the factory This manual does not cover troubleshooting at the factory level. 6.4.5 Finding possibly faulty parts Finding possibly faulty parts in the field was explained in Subsection 6.4.2. This manual does not cover finding possibly faulty parts at the factory level. 6 - 16 C141-E128-01EN...
  • Page 113: Chapter 7 Error Analysis

    CHAPTER 7 ERROR ANALYSIS Error Analysis Information Collection Sense Data Analysis This chapter explains in detail how sense data collected from a disk drive is used for troubleshooting. Sense data reflects an error in the disk drive, and helps with troubleshooting. A sense key, sense code, and subsense code, taken from various sense data are repeated.
  • Page 114: Figure 7.1 Format Of Extended Sense Data

    Bit 7 Byte 0 Valid X‘70’ or X‘71’ (error code) X‘00’ Sense key [MSB] Information [LSB] X‘28’ (additional sense data length) Basic [MSB] information Command-specific information [LSB] Sense code Subsense code X‘00’ SKSV Sense key-specific information SCSI ID CDB operation code Additional information Detail information...
  • Page 115: Error Information Indicated With Sense Data

    Sense Data Analysis 7.2.1 Error information indicated with sense data Subsection 7.2.2 onwards explain troubleshooting using sense data. Table 7.1 lists the definition of sense data. For details of sense data, refer to the SCSI Logical Interface Specifications. Table 7.1 Definition of sense data Sense data Sense...
  • Page 116: Sense Data (3-0C-03), (4-40-Xx), (4-44-Xx), And (4-C4-Xx)

    7.2.2 Sense data (3-0C-03), (4-40-xx), (4-44-xx), and (4-C4-xx) Sense data (4-03-xx), (4-40-xx), (4-44-xx), and (4-C4-xx) indicate one of the following: • A target sector could not be detected using the sector counter. • A seek process overran the specified time. •...
  • Page 117: Chapter 8 Principle Of Operation

    CHAPTER 8 PRINCIPLE OF OPERATION Outline Disk Drive Configuration Circuit Configuration Power-On Sequence Factory-Calibration Read/Write Circuit Servo Control This chapter explains the general design concepts of the disk drive. It also explains the main parts, sequences, servo control method, and the main electrical circuits of the drive at the block level. Outline The principle of operation of this disk drive can be divided into two parts.
  • Page 118: Disks

    8.2.1 Disks The disk configuration of each DE is shown in Figure 1.3. • The DE for the MAN3735 series contains 4 disks whose external diameter is 84 mm and internal diameter is 25 mm. • The DE for the MAN3367 series contains 2 disks whose external diameter is 84 mm and internal diameter is 25 mm.
  • Page 119: Circuit Configuration

    Circuit Configuration Figure 8.1 shows the circuit configuration of IDD. Read/write circuit The read/write circuit consists of 2 high performance LSIs, Read Channel and Head Preamp, which perform reading and writing data. 32/34 Modified Extended EPRML (MEEPRML) is adopted as recording method, which realizes high density recording. Servo circuit Voice coil motor position/speed control is carried out by a closed loop servo system and carries out feedback control based on servo information recorded on the data surface.
  • Page 120: Figure 8.1 Circuit Configuration

    Figure 8.1 Circuit configuration 8 - 4 C141-E128-01EN...
  • Page 121: Power-On Sequence

    Power-On Sequence Figure 8.2 shows the operation sequence of the IDD at power-on. The processes shown in this figure are explained below: 1) After the power is turned on, the IDD executes self-diagnosis 1 (MPU bus test, internal register write/read test, and work RAM write/read test). 2) When self-diagnosis 1 terminates successfully, the IDD activates the spindle motor when the motor start mode is set (SW1 is on;...
  • Page 122: Factory-Calibration

    Factory-Calibration Factory calibration is intended to correct errors in the mechanisms and circuits and maintain stable seek, read or write operation. External force adjustment Even if the actuator stops at a fixed position, disturbing forces such as an FPC force and air movement caused by disk rotation are exerted.
  • Page 123: Read/Write Circuit

    Read/Write Circuit The write/read circuit consists of a head IC unit (in DE), write circuit, read circuit, and interface circuit. Figure 8.3 is a block diagram of the read/write circuit. 8.6.1 Head IC The head IC is mounted inside the DE. The head IC has a preamplifier and a write current driver, and has a write error detection function.
  • Page 124: Figure 8.3 Block Diagram Of Read-Write Circuit

    Figure 8.3 Block diagram of read-write circuit 8 - 8 C141-E128-01EN...
  • Page 125: Read Circuit

    8.6.3 Read circuit After fixing the data output from the head IC to a certain level by Automatic Gain Control (AGC), the Read circuit converts the waveform digitally by Analog to Digital Converter (ADC) circuit via analog filter circuit. And then, after equalization by Finite Impulser Response filter (FIR filter), being converted to logic signal by Viterbi detection circuit, convert into NRZ data by 32/34 decoding circuit, and then the Read circuit sends the data to buffer memory.
  • Page 126: Servo Format

    Control Processor Signal (PWM) Read bus16 bus16 Drive Data Head Servo SPM/VCM Head Channel I/F LSI Demodulator Combo bus8 bus16 ARM7 Notes: DSP controls actuator servo system MCU controls spindle servo system Figure 8.4 Block diagram of servo control circuit Processor-ASIC (Processor-application specific IC) A DSP controls the spindle motor and the voice coil motor.
  • Page 127 1) Dead space The dead space is at the innermost position of a disk. At spindle start and stop, the head is in contact with this area of the disk. 2) Inner guard band (IGB) IGB is located in an inner position of a disk. IGB is used to detect that actuator operation has exceeded the ordinary seek operation range.
  • Page 128: Servo Frame Format

    4) Gray code area The gray code is an encoded area which includes the head number, servo sector number and cylinder information as gray code. Head position is recognized based on the cylinder information embedded as a gray code pattern. 5) Position area Information for recognizing head position is recorded in the position area.
  • Page 129: Voice Coil Motor Control

    2) In the next timing phase of 1) above, the DSP creates a rotating magnetic field. The motor rotates from a low rotational frequency up to about 100 min (100rpm). This is called synchronization control. 3) When the motor reaches a high rotational frequency, a counter-electromotive voltage (back EMF) is generated.
  • Page 130 This page is intentionally left blank.
  • Page 131: Appendix A Locations Of Connectors And Setting Terminals

    APPENDIX A LOCATIONS OF CONNECTORS AND SETTING TERMINALS Locations of Connectors and Setting Terminals (MAN series MC model) Locations of Connectors and Setting Terminals (MAN series MP model) This appendix shows the locations of connectors and setting terminals. C141-E128-01EN A - 1...
  • Page 132: Figure A.1 Locations Of Connectors (Man Series Mc Model

    Locations of Connectors (MAN series MC model) (Bottom view) (Rear view) Figure A.1 Locations of connectors (MAN series MC model) A - 2 C141-E128-01EN...
  • Page 133: Locations Of Connectors And Setting Terminals (Man Series Mp Model

    Locations of Connectors and Setting Terminals (MAN series MP model) (Bottom view) (Rear view) Figure A.2 Locations of connectors and setting terminals (MAN series MP model) C141-E128-01EN A - 3...
  • Page 134 This page is intentionally left blank.
  • Page 135: Appendix Bsetting Terminals

    APPENDIX B SETTING TERMINALS Setting Terminals (MP model only) This appendix describes setting terminals. C141-E128-01EN B - 1...
  • Page 136: Table B.1 Setting Terminal: Cn2

    Setting Terminals (MP model only) Table B.1 Setting terminal: CN2 Setting item Pins Setting contents 9 - 10 7 - 8 5 - 6 3 - 4 1 - 2 SCSI ID (Open) Open Open Open SCSI ID #0 (Common to 8-bit and 16-bit SCSI) (Open) Open Open Short...
  • Page 137: Appendix Cconnector Signal Allocation

    APPENDIX C CONNECTOR SIGNAL ALLOCATION SCSI Connector Signal Allocation: SCA2 type LVD 16-bit SCSI SCSI Connector Signal Allocation: 68 pin type LVD 16-bit SCSI This appendix describes the connector signal allocation. C - 1 C141-E128-01EN...
  • Page 138: Table C.1 Scsi Connector (Sca2 Type Lvd 16-Bit Scsi): Cn1

    SCSI Connector Signal Allocation: SCA2 type LVD 16-bit SCSI Table C.1 SCSI connector (SCA2 type LVD 16-bit SCSI): CN1 Pin No. Signal Signal Pin No. +12V (Charge) 12V RETURN (GND) +12V 12V RETURN (GND) +12V 12V RETURN (GND) +12V 12V RETURN (MATED 1) Reserved (N.C.) Reserved (N.C.) Reserved (N.C.)
  • Page 139: Table C.2 Scsi Connector (68 Pin Type Lvd 16-Bit Scsi): Cn1

    SCSI Connector Signal Allocation: 68 pin type LVD 16-bit SCSI Table C.2 SCSI connector (68 pin type LVD 16-bit SCSI): CN1 Pin No. Signal Signal Pin No. DB12 –DB12 DB13 –DB13 DB14 –DB14 DB15 –DB15 DBP1 –DBP1 DB00 –DB00 DB01 –DB01 DB02 –DB02...
  • Page 140 This page is intentionally left blank.
  • Page 141: Appendix D Model Names And Product Numbers

    APPENDIX D MODEL NAMES AND PRODUCT NUMBERS Model Names and Product Numbers This appendix lists model names (types) and product numbers. C141-E128-01EN D - 1...
  • Page 142 Model Names and Product Numbers Table D.1 MAN series model names and product numbers Data block Total (*1) length storage Model name Mounting SCSI type Part number Remarks (at factory capacity (type) screw shipment) (user area) 25.4mm height MA N3735MC SCA2, LVD CA05904-B400 10,025 min...
  • Page 143 211-8588, Japan FAX: 34-91-581-8300 TEL: 81-44-754-2130 FAX: 81-44-754-8346 FUJITSU AUSTRALIA LIMITED 2 Julius Avenue (Cnr Delhi Road) North Ryde N.S.W. 2113, FUJITSU COMPUTER PRODUCTS OF AMERICA, INC. AUSTRALIA 2904 Orchard Parkway, San Jose, TEL: 61-2-9776-4555 California 95134-2009, U.S.A. FAX: 61-2-9776-4556 TEL:...
  • Page 144 FUJITSU LIMITED Reader Comment Form We would appreciate your comments and suggestions for improving this publication. Publication No. Rev. Letter Title Current Date How did you use this publication? Is the material presented effectively? Learning Sales Installing Fully Well Well...

Table of Contents