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Fujitsu MAF3364FC SERIES Maintenance Manual

Fibre channel interface
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MAF3364FC SERIES
MAG3182FC, MAG3091FC SERIES
DISK DRIVES
FIBRE CHANNEL INTERFACE
MAINTENANCE MANUAL
C141-F037-02EN

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  • Page 1 MAF3364FC SERIES MAG3182FC, MAG3091FC SERIES DISK DRIVES FIBRE CHANNEL INTERFACE MAINTENANCE MANUAL C141-F037-02EN...
  • Page 2 (GLWLRQ 'DWH SXEOLVKHG 5HYLVHG FRQWHQWV C141-F037-02EN...
  • Page 3 This page is intentionally left blank.
  • Page 4 “Important Alert Items” in this manual. Keep this manual handy, and keep it carefully. FUJITSU makes every effort to prevent users and bystanders from being injured or from suffering damage to their property. Use the product according to this manual.
  • Page 5 SIGNALING INTERFACE-2 (FC-PH-2) ANSI X3.272-199X FIBRE CHANNEL ARBITRATED LOOP (FC-AL) ANSI X3.269-199X FIBRE CHANNEL PROTOCOL FOR SCSI (SCSI-FCP) All Right Reserved, Copyright © 2000 Fujitsu, Limited Name Enacting Organization American National Standards Institute (ANSI) American National Standards Institute (ANSI) American National...
  • Page 6 MAF3364FC and MAG series disk drives. CHAPTER 2 MAINTENANCE AND DIAGNOSIS This chapter describes the basic requirements for maintenance of the MAF3364FC and MAG series disk drives. This chapter also describes diagnostic methods for operation check and the basics of troubleshooting the disk drives.
  • Page 7 CONVENTIONS This manual uses the following conventions for alerts to prevent physical or property damages to users or by standards. DANGER indicates that personal injury will occur if the user does not perform the procedure correctly. WARNING indicates that personal injury could occur if the user does not perform the procedure correctly.
  • Page 8 DISCLAIMER Failure of the MAF3364FC and MAG 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.
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  • Page 10 Cautions Regarding Safety List of Items with Serious Warnings Serious warnings included in this manual are as follows. Indicates items for which, if the product is not used correctly, there is danger not only CAUTION of minor or mildly severe injury, but also danger of the product itself being damaged or of other users and their property being injured or damaged.
  • Page 11 Never open the disk enclosure in the field. Opening the disk enclosure in the field may cause an irreparable fault. Destruction of Data Save data stored on the disk drive before requesting repair. Fujitsu does not assume responsibility if data is destroyed during servicing or repair.
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  • Page 14: Table Of Contents

    CHAPTER 1 SPECIFICATIONS AND EQUIPMENT CONFIGURATION ...1 - 1 Product Specifications ...1 - 1 Installation Conditions ...1 - 1 Power Supply Conditions ...1 - 1 Connection Conditions...1 - 2 Settings...1 - 2 MAINTENANCE AND DIAGNOSIS ...2 - 1 CHAPTER 2 Maintenance Conditions...2 - 1 2.1.1 Precautions ...2 - 1...
  • Page 15 3.2.1 Error information indicated with sense data ...3 - 3 3.2.2 Sense data (4-03-xx), (4-40-xx), (4-44-xx), and (4-C4-xx) ...3 - 4 3.2.3 Sense data (1-1x-xx), (3-1x-xx), and (E-1D-00): Disk read error...3 - 4 3.2.4 Sense data (5-2x-xx), (5-3D-00), (5-90-00), (B-47-xx), (B-49-00), and (B-4E-00): fibre channel interface error ...3 - 4 CHAPTER 4 REMOVAL AND REPLACEMENT PROCEDURES...4 - 1...
  • Page 16 Revision label...2 - 5 Indicating revision numbers ...2 - 6 Test flowchart ...2 - 7 Format of extended sense data...3 - 2 Head configuration...5 - 2 Circuit configuration ...5 - 5 IDD operation sequence at power-on ...5 - 6 Block diagram of read-write circuit ...5 - 8 Block diagram of servo control circuit ...5 - 12 Position of servo track ...5 - 14 Servo frame...5 - 15...
  • Page 17 List of Model Names/Product Numbers ...4 - 2 Algorithm for write precompensation ...5 - 9 MAF3364FC write frequency and recording density in each zone ...5 - 11 MAG series write frequency and recording density in each zone ...5 - 11...

  • Page 18: Chapter 1 Specifications And Equipment Configuration

    MAF3364FC and MAG series intelligent disk drives (IDD) are high performance, large capacity 3.5 inch fixed magnetic disk drives with a built-in fibre channel controller. The interface used to connect the MAF3364FC and MAG series intelligent disk drives with the host system is compatible with the SCSI standard.

  • Page 19: Connection Conditions

    Concerning “Connectors for Connections,”, please refer to 4.3, “Connection Requirements” in the Product Manual (C141-E078EN). Settings Concerning the “MAF3364FC Series Setting Terminal” and “MAG3xxxFC Series Setting Terminal”, and “Setting Parameters,” please refer to 5.2, “Setting” and 5.4 “Confirming Operations after Installation and Preparation for use” in the Product Manual (C141-E078EN).

  • Page 20: Chapter 2 Maintenance And Diagnosis

    CHAPTER 2 MAINTENANCE AND DIAGNOSIS This chapter explains disk drive maintenance, diagnosis, operation check, and troubleshooting. This chapter covers the following: Cautions during ordinary maintenance and troubleshooting Indication of maintenance levels (field and factory) Indication of device revision, and revision updating in the field Tools and test equipment required at each maintenance level General test method at each maintenance level Recommended troubleshooting procedures, and detection of possibly faulty parts...

  • Page 21: Maintenance Requirements

    5 years 4 years 3 years Strengthen cooling power so that DE surface temperature is 55°C or less. For MAF3364FC model, the heating value generated by the IDD itself is higher, so that cooling care is specially required. 55°C) C141-F037-02EN...
  • Page 22 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 23: Maintenance Levels

    Destruction of Data Save data stored on the disk drive before requesting repair. Fujitsu does not assume responsibility if data is destroyed during servicing or repair. See Section 5.1 for notes on packing and handling when returning the disk drive.

  • Page 24: Revision Numbers

    2.1.4 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 2.1 shows the revision label format. 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 2.2).

  • Page 25: Tools And Test Equipment

    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 26: Test Flowchart

    Initial seek operation check (See Subsection 2.2.1) Operation test (See Subsection 2.2.2) Diagnostic test (See Subsection 2.2.3) Figure 2.3 shows the flow of these tests. Start Start self-test by turning the power on Test results OK? Execute an operation test using a host computer or test equipment Test results OK?

  • Page 27: Operation Check

    Operation Check 2.2.1 Initial seek operation check If an error is detected during initialization by the initial seek operation check routine at turning on the Fault LED. The spindle motor of the disk drive then stops, and the disk drive is unusable. For an explanation of the operation check before the initial seek, refer to the Product Manual.

  • Page 28: Troubleshooting Procedures

    Troubleshooting Procedures 2.3.1 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, recommended spare part, or disk drive part). Full-scale troubleshooting is usually required if the error cause is not known.

  • Page 29: Troubleshooting At The Repair Site

    Table 2.1 Item AC and DC power level Check that the DC voltage is within the specified range (±5%). Check that the +5 VDC value (pin of the interface connector) is 4.75 to 5.25 VDC. Check that the +12 VDC supply (pin of the interface connector of disk drive) is 11.4 to 12.6 VDC.

  • Page 30: Troubleshooting With Parts Replacement In The Factory

    Table 2.2 Item Frequent or repeated seek errors Intermittent or nonfatal errors If the disk drive error recurs or a possibly faulty part is found by troubleshooting, return the complete disk drive to the factory for repair. A media defect list must be included with a disk drive returned to the factory.
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  • Page 32: Chapter 3 Error Analysis

    CHAPTER 3 ERROR 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. Also in this chapter, troubleshooting is performed using these three codes.

  • Page 33: Format Of Extended Sense Data

    Bit 7 Byte 0 Valid [MSB] Basic [MSB] information SKSV Additional information Detail information MSB: Most Significant Byte LSB: Least Significant Byte LUN: Logical Unit Number SKSV: Sense Key Specific Valid SCSI ID: SCSI Identifier Figure 3.1 3 - 2 X‘70’...

  • Page 34: Sense Data Analysis

    Sense Data Analysis 3.2.1 Error information indicated with sense data Subsection 3.2.2 onwards explain troubleshooting using sense data. Table 3.1 lists the definition of sense data. For details of sense data, refer to the Fibre Channel Logical Interface Specifications. Table 3.1 Sense data Sense Sense...

  • Page 35: Sense Data (4-03-Xx), (4-40-Xx), (4-44-Xx), And (4-C4-Xx)

    3.2.2 Sense data (4-03-xx), (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. A write to a disk terminated abnormally. An error occurred in power-on self-diagnosis.

  • Page 36: Chapter 4 Removal And Replacement Procedures

    CHAPTER 4 REMOVAL AND REPLACEMENT PROCEDURES This chapter explains how to remove and replace a disk drive. It is assumed that the reader already has a through understanding of the replacement of the whole disk drive. Note the following when removing and replacing a disk drive: A disk drive must be removed from the host system.

  • Page 37: List Of Model Names/Product Numbers

    Table 4.1 Total Memory Model Name Capacity (Model Name) (512 Byte Format Capacity) MAF3364FC 36.4 GB MAG3182FC 18.2 GB MAG3091FC 9.1 GB Factory Setting Format: 512 Format Format Capacity: 1 GB = 10 Bytes Mounting Screws: #6-32 UNC 4 - 2...

  • Page 38: Disk Drive Removal

    Disk Drive Removal Since the method and procedure for dismounting the disk drive for replacement of the drive, etc. depends on the locker structure of the system, etc., the work procedure must be determined in consideration of the requirements specific to the system. This section describes the general procedure and notes on dismounting the drive.
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  • Page 40: Chapter 5 Principle Of Operation

    CHAPTER 5 PRINCIPLE OF OPERATION 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. The first part explains the mechanical parts of the drive (see Section 5.2).

  • Page 41: Disks

    Heads The read/write head configuration is shown in Figure 5.1. There are 19 read/write heads in the MAF3364FC, 10 in the MAG3182FC and 5 in the MAG3091FC. These heads float up from the surface of the disk automatically when the spindle motor's speed has reached a certain speed.

  • Page 42: Spindle Mechanism

    5.2.3 Spindle mechanism The spindle mechanism consists of a disk stack assembly and a spindle motor. The disk stack assembly is directly driven by the direct drive type DC spindle motor. The rotational frequency of this spindle motor is 10,025 rpm. A counterelectromotive force is generated by the drive current in the spindle motor coil.
  • Page 43 The DSP accurately controls traffic positioning of each head using servo information on the data surface. Spindle motor drive circuit The spindle motor drive circuit drives the spindle motor. A drive current in the motor coil generates a counter emf. The frequency of the counter emf is compared, by the DSP, with a reference frequency derived by dividing the crystal oscillator frequency.

  • Page 44: Circuit Configuration

    Figure 5.2 Circuit configuration C141-F037-02EN 5 - 5...

  • Page 45: Power-On Sequence

    Power-On Sequence Figure 5.3 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 46: 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 47: Block Diagram Of Read-Write Circuit

    Figure 5.4 Block diagram of read-write circuit 5 - 8 C141-F037-02EN...

  • Page 48: Write Circuit

    5.6.2 Write circuit The write data is converted into the NRZ data (WDT), and is sent, together with the Write clock (WCLK) signal, to the write circuit. The NRZ data is converted into 16/17 RLL code by the encoder circuit, and is written to the disk. 16/17 RLL encoder This disk drive uses the 16/17 RLL recording method.

  • Page 49: Write Frequency Change Circuit

    Sample and hold circuit The sample and hold circuit samples analog-waveform voltages according to the period of the clock signals generated by the VFO circuit. The sample signal from the sample and hold circuit is passed to the AGC gain controlling level detection circuit and VFO circuit. VFO circuit The VFO circuit generates a clock signal that is synchronized with the sample and hold circuit output signal.

  • Page 50: Maf3364Fc Write Frequency And Recording Density In Each Zone

    Table 5.2 MAF3364FC write frequency and recording density in each zone Zone Cylinder 1,999 1F(MFRPS) 47.5 47.5 2F(MFRPS) 379.8 379.8 225,473 238,109 Zone 5,460 6,460 Cylinder 6,459 7,369 1F(MFRPS) 40.7 38.8 2F(MFRPS) 325.8 310.3 265,627 269,694 Table 5.3 MAG series write frequency and recording density in each zone...

  • Page 51: Servo Control

    Servo Control The servomechanism is controlled using a digital servo technique by the firmware in the digital signal processor (DSP). DPS carries out VCM control. Control of the voice coil motor consists of track-following operation control and seek operation control. Track-following operation is controlled to center the data-head-mounted actuator over the target cylinder for read/write operation.

  • Page 52: Servo Format

    Servo demodulator As explained in 5.7.2, servo signals consist of a training segment, a Servo Mark segment, a Position segment and a Gray Code segment, and there are 60 frames arranged around the circumference. In the servo demodulator, the Gray Code and Position signals from the servo signal are demodulated and used to control head positioning.

  • Page 53: Position Of Servo Track

    1) W/R recovery area The W/R recovery area consists of a fixed-period burst signal and has following functions. Preparation of servo mark detection 2) Servo mark area Servo mark patterns are written in the servo mark areas and patterns are detected by the length of the DC areas.

  • Page 54: Data-Side Servo Data Format

    5.7.3 Data-side servo data format Servo W/R recovery mark 5.7.4 Spindle motor control The FC control MCU controls the senseless 3-phase spindle motor. It carries out start / normal rotation control in accordance with commands from the FC unit. Activation The FC control MCU carries out control of the spindle motor from the stopped condition to normal rotation by the following sequence.

  • Page 55: Voice Coil Motor Control

    5.7.5 Voice coil motor control The voice coil motor is controlled by moving the head-mounted carriage according to the servo data recorded on the specific data side. This control is done by firmware by digital servo control using the DSP. This control provides return-to-zero (RTZ) operation, seek operation, and track following operation.

  • Page 56: Glossary

    Actuator A head positioning assembly. consists of a voice coil motor, head arms, and a servo head which positions the read/write (R/W) head. Bus condition An asynchronous condition for changing the SCSI bus status. The bus condition is ATTENTION or RESET. Bus phase SCSI bus status.
  • Page 57 Reconnection Relinkage of an initiator to a disconnected target when a target operation on a SCSI bus is needed Rotational delay Time for one rotation of a disk. rotational delay is the time for half a rotation of a disk. Average rotational delay is the average time from positioning a head on a track to reaching a sector.

  • Page 58: Abbreviations

    Alternating Current Analog-to-Digital Converter Automatic Gain Control ANSI American National Standards Institute American Wire Gauge Command Descriptor Block Digital-to-Analog Converter Direct Current Disk Enclosure Dead Space Digital Signal Processor Error Correction Code Field-Effect Transistor Flexible Printed Circuit GrouND Interface Integrated Circuit Identifier Intelligent Disk Drive Inner Guard Band...
  • Page 60 #0,/07 422039 472...

This manual is also suitable for:

Mag3091fc seriesMag3182fc series

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