Fujitsu HARD DISK DRIVES MAW3073FC Product/Maintenance Manual
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Fujitsu HARD DISK DRIVES MAW3073FC Product/Maintenance Manual

3.5" type hard disk drives with an embedded fibre channel controller
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C141-E235-01EN
MAW3300FC
MAW3147FC
MAW3073FC
HARD DISK DRIVES
PRODUCT/MAINTENANCE MANUAL

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  • Page 1 C141-E235-01EN MAW3300FC MAW3147FC MAW3073FC HARD DISK DRIVES PRODUCT/MAINTENANCE MANUAL...
  • Page 2 In addition, FUJITSU assumes no liability with respect to the application or use of any product or system in accordance with the descriptions or instructions contained herein; including any liability for incidental or consequential damages arising therefrom.
  • Page 3 The contents of this manual may be revised without prior notice. The contents of this manual shall not be disclosed in any way or reproduced in any media without the express written permission of Fujitsu Limited. All Rights Reserved, Copyright  FUJITSU LIMITED 2005 C141-E235...
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  • Page 5 REVISION RECORD Edition Date published Revised contents June, 2005 Specification No.: C141-E235-**EN C141-E235...
  • Page 6 Related Standards Product specifications and functions described in this manual comply with the following ANSI (*1) standards. Document number NCITS TR-19 FIBRE CHANNEL PRIVATE LOOP SCSI DIRECT ATTATH (FC-PLDA) ANSI X3.230-1994 FIBRE CHANNEL PHYSICAL AND SIGNALING INTERFACE (FC-PH) ANSI X3.297-1996 FIBRE CHANNEL PHYSICAL AND SIGNALING INTERFACE-2 (FC-PH-2) ANSI X3.272-199X FIBRE CHANNEL ARBITRATED LOOP (FC-AL)
  • Page 7 This manual describes the MAW3300FC, MAW3147FC, and MAW3073FC 3.5" type hard disk drives with an embedded fibre channel 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 hard disk drives and their use in computer systems.
  • Page 8 Preface APPENDIX A The appendix gives supplementary information, including the signal assignments of interface connectors. CONVENTIONS USED IN THIS MANUAL The MAW3300FC, MAW3147FC, and MAW3073FC disk drives are described as "the hard disk drive (HDD)", "the disk drive" or "the device" in this manual. Decimal number is represented normally.
  • Page 9 Attention Please forward any comments you may have regarding this manual. To make this manual easier for users to understand, opinions from readers are needed. Please write your opinions or requests on the Comment at the back of this manual and forward it to the address described in the sheet.
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  • Page 11: 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. Also, damage to the product or other property, may occur if the user does not perform the procedure correctly.
  • Page 12 Important Alert Items Task Installation Damage 1. When dismounting the drive which is mounted on the system while power is supplied to it. • The drive to be dismounted must be separated from the loop. Dismounting the drive which is not separated from the loop may cause an unexpected error.
  • Page 13 2. Never open the disk enclosure for any reason. Doing so will void any warranties. Data loss Save data stored on the disk drive to other media before requesting repair. Fujitsu does not assume responsibility if data is destroyed during servicing or repair. C141-E235 Important Alert Items...
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  • Page 15 MANUAL ORGANIZATION PRODUCT/ MAINTENANCE MANUAL (This manual) FIBRE CHANNEL INTERFACE SPECIFICATIONS C141-E235 1. General Description 2. Specifications 3. Data Format 4. Installation Requirements 5. Installation 6. Diagnostics and Maintenance 7. Error Analysis 1. Fibre Channel Interface 2. Command Processing 3. Data Buffer Management 4.
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  • Page 17: Table Of Contents

    CHAPTER 1 General Description ... 1-1 Standard Features ... 1-2 Hardware Structure ... 1-5 System Configuration... 1-7 CHAPTER 2 Specifications ... 2-1 Hardware Specifications ... 2-1 2.1.1 Model name and order number ... 2-1 2.1.2 Function specifications... 2-2 2.1.3 Environmental specifications ... 2-4 2.1.4 Error rate ...
  • Page 18 Contents 4.1.2 Mounting orientations ...4-3 4.1.3 Notes on mounting ...4-3 Power Supply Requirements ...4-8 Connection Requirements ...4-9 4.3.1 Connector...4-9 4.3.2 Interface connector ...4-10 CHAPTER 5 Installation ... 5-1 Notes on Handling Drives ...5-1 Setting...5-3 5.2.1 Loop ID setting...5-3 5.2.2 Mode settings...5-3 Mounting Drives...5-4 5.3.1 Mounting procedures...5-4 Checking Operation after Installation and Preparing the HDD...
  • Page 19 6.2.5 Tools and test equipment ... 6-9 6.2.6 Tests ... 6-9 Operation Check... 6-11 6.3.1 Initial seek operation check... 6-11 6.3.2 Operation test ... 6-11 6.3.3 Diagnostic test ... 6-11 Troubleshooting Procedures... 6-12 6.4.1 Outline of troubleshooting procedures... 6-12 6.4.2 Troubleshooting with disk drive replacement in the field ... 6-12 6.4.3 Troubleshooting at the repair site...
  • Page 20 Contents Illustrations Figures Figure 1.1 FC model drives outer view ... 1-5 Figure 1.2 Example of FC-AL system configuration... 1-7 Figure 3.1 Cylinder configuration ... 3-2 Figure 3.2 Spare area in cell ... 3-4 Figure 3.3 Alternate cylinder... 3-4 Figure 3.4 Track format... 3-5 Figure 3.5 Track skew/head skew ...
  • Page 21 Tables Table 2.1 Model names and order numbers...2-1 Table 2.2 Function specifications ...2-2 Table 2.3 Environmental/power requirements...2-4 Table 3.1 Format capacity...3-8 Table 4.1 Surface temperature check point ...4-6 Table 5.1 Motor start mode...5-3 Table 6.1 Self-diagnostic functions ...6-1 Table 6.2 System-level field troubleshooting ...6-13 Table 6.3 Disk drive troubleshooting...6-14...
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  • Page 23: Chapter 1 General Description

    CHAPTER 1 General Description Standard Features Hardware Structure System Configuration This chapter describes the feature and configuration of the hard disk drives (HDDs). The drives are high performance large capacity 3.5" type hard disk drives with an embedded Fibre-Channel controller. The interface used to connect the drives to the host system complies with NCITS TR-19 Fibre Channel Private Loop SCSI Direct Attach (FC-PLDA), which is the Fibre Channel PLDA standard covering items ranging from Fibre Channel physical layers to SCSI command protocols.
  • Page 24 At present, the permissible limits on the use of certain materials specified by the RoHS directive have not been determined. In such cases, we are using the original criteria set by Fujitsu Limited while referring to the restrictions already established by End-of-Life Vehicle (ELV) Directive or by the national environmental laws of the EU member nations.

  • Page 25: 1.1 Standard Features

    The continuous processing up to [64K-1] blocks in a command can be achieved, and HDD can perform continuous read/write operation when processing data blocks on several tracks or cylinder. Multi-segment data buffer The data buffer is 8M bytes. Data is transferred between Fibre Channel Loop and disk media through this data buffer.
  • Page 26 General Description (12) Error recovery The HDD can try to recover from errors in Fibre Channel Loop 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.

  • Page 27: 1.2 Hardware Structure

    (19) Diagnosis The HDD has a diagnostic capability which checks internal controller functions and drive operations to facilitate testing and repair. (20) Low power consumption By using highly integrated LSI components, the power consumption of the HDD is very low, and this enables the unit to be used in wide range of environmental conditions.
  • Page 28 General Description 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. Spindle motor The disks are rotated by a direct-drive hall-less DC spindle motor. The motor speed is controlled by a feedback circuit using the counter electromotive current to precisely maintain the specified speed.

  • Page 29: 1.3 System Configuration

    System Configuration For the Fibre Channel, the ANSI standard defines Arbitrated Loop, Fabric, and Point-to-Point technologies. The drives support the Arbitrated Loop technology. Figure 1.2 gives an example of the FC-AL system configuration. Port B Initiator (Node-1) Port A Port B Drive (Node-4) Port A...
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  • Page 31: Chapter 2 Specifications

    CHAPTER 2 Specifications Hardware Specifications This chapter describes specifications of the HDD. Hardware Specifications 2.1.1 Model name and order number Each model has a different recording capacities when shipped. Table 2.1 lists the model name and order number. The data format can be changed by reinitializing with the user's system. Table 2.1 Model name Order number...

  • Page 32: Function Specifications

    Specifications 2.1.2 Function specifications Table 2.2 shows the function specifications of the HDD. Table 2.2 Item Formatted capacity/device (*1) Number of disks Number of heads Number of rotations min (rpm) Average latency time Track to Track Seek time (*3) Average (Read/Write) Full stroke Start time...
  • Page 33 (*3) The seek time is as follows: The start time is the time from power on or start command to when the HDD is ready, and the stop (*4) time is the time for disks to completely stop from power off or stop command. This value indicates during idle mode.

  • Page 34: Environmental Specifications

    Specifications 2.1.3 Environmental specifications Table 2.3 lists environmental and power requirements. Table 2.3 Item Operating Non-operating Temperature Transport (within a week) (*1) DE surface temperature at operating Gradient Operating Non operating Relative Transport (within a week) humidity Maximum wet bulb temperature Operating (*3) Vibration (*2)

  • Page 35: Error Rate

    For detail condition, see Section 4.1. (*1) Vibration applied to the drive is measured at near the mounting screw hole on the frame as much as (*2) possible. At random seek write/read and default on retry setting with log sweep vibration. (*3) At power-off state after installation (*4)
  • Page 36 Specifications Note: The MTBF is defined as: Operating time (hours) at all field sites MTBF = The number of equipment failures from all field sites 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.
  • Page 37 Data security at power failure Integrity of the data on the disk is guaranteed against all forms of DC power failure except on blocks where a write operation is being performed. The above does not applied to formatting disks or assigning alternate blocks.
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  • Page 39: 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 HDD. Data Space The HDD manages the entire data storage area divided into the following three data spaces. •...

  • Page 40: Figure 3.1 Cylinder Configuration

    Data Format Cylinder –154 Cylinder –147 Cylinder –143 Cylinder –4 Zone Cell Cylinder • • • m-28 • Note: Spare sectors on the last track in each cylinder are not necessarily placed at the end of the track because of a track skew or a cylinder skew. (Details are explained in Subsection 3.1.3.) Figure 3.1 Apart from the above logical configuration, the HDD intends to increase the storage capacity by dividing all cylinders into several zones and changing a recording density of each zone.
  • Page 41 User space The user space is a storage area for user data. The data format on the user space (the length of data block and the number of data blocks) can be specified with the MODE SELECT or MODE SELECT EXTENDED command.

  • Page 42: Alternate Spare Area

    Data Format 3.1.2 Alternate spare area The alternate spare area consists of the last track of each cell in the user space and an alternate cylinder allocated to the last cylinder of each zone. The spare area in each cell is placed at the end of the last track as shown in Figure 3.2. These spare sectors are located in the end of the track logically, not necessarily located at the end physically because of track skew or cylinder skew.

  • Page 43: Track Format

    3.1.3 Track format Physical sector allocation Figure 3.4 shows the allocation of the physical sectors in a track. The length in bytes of each physical sector and the number of sectors per track vary depending on the logical data block length. The unused area (G4) exists at the end of the track in formats with most logical data block lengths.

  • Page 44: Sector Format

    Data Format Track skew Head Head Figure 3.5 The number of physical sectors (track skew factor and head skew factor) corresponding to the skew time varies depending on the logical data block length because the track skew and the head skew are managed for individual sectors.
  • Page 45 Each sector on the track consists of the following fields: Gaps (G1, G2, G3) No pattern is written on the gap field. PLO Sync In this field, pattern X'00' is written. Sync Mark (SM1, SM2) In this field, special pattern is written. This special pattern indicates the beginning of the data field. Data field (DATA1-DATA4) User data is stored in the data field of the sector.

  • Page 46: Format Capacity

    Data Format 3.1.5 Format capacity The size of the usable area for storing user data on the HDD (format capacity) varies according to the logical data block or the size of the spare sector area. Table 3.1 lists examples of the format capacity when the typical logical data block length and the default spare area are used.

  • Page 47: 3.2 Logical Data Block Addressing

    Block address of user space The logical data block address number is consecutively assigned to all of the data blocks in the user space starting with 0 to the first data block. The HDD treats sector 0, track 0, cylinder 0 as the first logical data block. The data block is allocated in ascending order of addresses in the following sequence (refer to Figure 3.5): 1) Logical data blocks are assigned in ascending order of sector number in the same track.

  • Page 48: Defect Management

    Data Format Defect Management 3.3.1 Defect list Information of the defect location on the disk is managed by the defect list. The following are defect lists which the HDD manages. • P list (Primary defect list): This list consists of defect location information available at the disk drive shipment and is recorded in a system space.

  • Page 49: Figure 3.7 Alternate Block Allocation By Format Unit Command

    Alternate block allocation during FORMAT UNIT command execution When the FORMAT UNIT command is specified, the allocation of the alternate block to those defective sectors included in the specified lists (P, G, or D) is continued until all spare sectors in the same cell are used up.

  • Page 50: Figure 3.8 Alternate Block Allocation By Reassign Blocks

    Data Format If above errors are detected during FORMAT UNIT command, the HDD allocates the alternate block(s) to the defective data blocks. Reassign procedure itself is the same as one in REASSIGN BLOCKS command. Certification is permitted when DCRT flag is cleared (DCRT flag=0) in FORMAT UNIT command.
  • Page 51 Automatic alternate block allocation • Automatic alternate block allocation at read operation If the ARRE flag in the MODE SELECT parameter permits the automatic alternate block allocation, the HDD automatically executes the alternate block allocation and data duplication on the defective data block detected during the READ or READ EXTENDED command.
  • Page 52 Data Format Type 2 (Reassignment of write fail sector) 1) Commands to be applied WRITE WRITE EXTENDED FORMAT UNIT WRITE at executing WRITE AND VERIFY 2) Application requirements / processing When WRITE/WRITE EXTENDED command detects any Servo error (e.g. Write offtrack error) and cannot be recovered within pre-determined retry number (specified in Mode Parameter).

  • 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 show the external dimensions of the HDD and the location of the holes for the HDD mounting screws.

  • Page 54: Figure 4.1 Dimensions

    Installation Requirements The value marked with (*) indicates the dimension between mounting holes on the bottom face. [Unit: mm] Figure 4.1 Dimensions C141-E235...

  • Page 55: Notes On Mounting

    4.1.2 Mounting orientations The permissible orientations of the HDD are shown in Figure 4.2, and the tolerance of the angle is ±5° from the horizontal plane. (a) Horizontal –1 (d) Vertical –2 4.1.3 Notes on mounting Damage Never remove any labels from the drive or deface them in any way. C141-E235 (b) Horizontal –2 (e) Upright mounting –1...

  • Page 56: Figure 4.3 Mounting Frame Structure

    Installation Requirements Mounting screw Use #6-32UNC. Mounting frame structure Special attention must be given to mount the HDD disk enclosure (DE) as follows. Use the frame with an embossed structure, or the like. Mount the HDD with making a gap of 2.5 mm or more between the HDD and the frame of the system.

  • Page 57: Figure 4.4 Limitation Of Side-Mounting

    Limitation of side-mounting Use the four screw holes at the both ends on the both sides as shown in Figure 4.4. Do not use the center hole by itself. In case of using the center hole, it must be used in combination with two holes on both ends. (Total six screws for six holes enclosed) Holes for mounting screw...

  • Page 58: Figure 4.5 Surface Temperature Measurement Points

    Installation Requirements Table 4.1 Measurement point DE surface Read channel LSI VCM/SPM Driver Figure 4.5 Surface temperature check point Max. temperature on package 60°C 80°C 93°C 90°C 90°C Surface temperature measurement points C141-E235...

  • Page 59: Figure 4.6 Service Clearance Area

    Service clearance area The service clearance area, or the sides which must allow access to the HDD for installation or maintenance, is shown in Figure 4.6. [Surface P] • Cable connection [Surface Q] • Hole for mounting screw Figure 4.6 Environmental magnetic field Do not install the HDD in the vicinity of equipment giving off strong magnetic fields, such as monitors, televisions, or loudspeakers.

  • Page 60: Figure 4.7 Current Waveform (+12 Vdc)

    Installation Requirements Power Supply Requirements Allowable input voltage and current The power supply input voltage measured at the power supply connector pin of the HDD (receiving end) must satisfy the requirement given in Subsection 2.1.3. (For other requirements, see Items (4) below.) Current waveform (reference) Figure 4.7 shows the waveform of +12 VDC.

  • Page 61: 4.3 Connection Requirements

    Noise filter To eliminate AC line noise, a noise filter should be installed at the AC input terminal on the HDD power supply unit. The specification of this noise filter is as follows: • Attenuation: 40 dB or more at 10 MHz •...

  • Page 62: Interface Connector

    Installation Requirements 4.3.2 Interface connector The connector for the Fibre Channel Loop is an unshielded SCA-2 connector which has two 20- pin rows spaced 1.27 mm (0.05 inch) apart. Figure 4.10 shows the connector. See Appendix A for signal assignments on the connector. For details on the physical/electrical requirements of the interface signals, refer to Section 1.3 “Physical Requirements, Electrical Requirements”...

  • Page 63: Chapter 5 Installation

    CHAPTER 5 Installation Notes on Handling Drives Setting Mounting Drives Checking Operation after Installation and Preparing the HDD for Use Dismounting Drives Spare Disk Drive This chapter describes the notes on handling drives, setting, mounting drives, confirming drive operations after installation and preparation for use, and dismounting drives. Notes on Handling Drives The items listed in the specifications in Table 2.1 must be strictly observed.
  • Page 64 Installation 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 PCA and interface connector when removing the drive from the Fcell.

  • Page 65: 5.2 Setting

    Setting 5.2.1 Loop ID setting When setting the fibre channel loop ID, use SEL0 to SEL6 of interface connector CN1. IN bit weighting, SEL6 corresponds to the MSB, SEL0 to the LSB, and 126 types of X'00' to X'7D' can be specified as loop IDs.

  • Page 66: Mounting Drives

    Installation Mounting Drives 5.3.1 Mounting procedures Since mounting the drive depends on the system cabinet structure, determine the work procedures considering the requirements specific to each system. The general mounting method and items to be checked are shown below. See Subsection 4.1 for the details of requirements for installing the HDD. 1) With a system to which an external operator panel is mounted, if it is difficult to access the connector after the drive is mounted on the system cabinet, connect the external operator panel cable before mounting the drive.

  • Page 67: 5.4 Checking Operation After Installation And Preparing The Hdd For Use

    5.4 Checking Operation after Installation and Preparing the HDD for Use Checking Operation after Installation and Preparing the HDD for Use 5.4.1 Checking initial operation This section explains how to check operation after power is turned on. Since the initial operation of an HDD differs depending on the settings of the motor start mode, check the following initial operations according to the motor start mode set during installation.

  • Page 68: Checking Connection

    Installation The Active LED goes off while the HDD command is being executed. For some commands, however, since the Active LED goes off for only a fraction of a second, the Active LED looks like it flashes or remains lit. 5.4.2 Checking connection When the initial operation is checked normally after power is turned on, check that the HDD is...

  • Page 69: Figure 5.1 Checking The Hdd Connection (A)

    5.4 Checking Operation after Installation and Preparing the HDD for Use Motor starts when power is turned on Figure 5.1 Checking the HDD connection (A) C141-E235...

  • Page 70: Figure 5.2 Checking The Hdd Connection (B)

    Installation Motor starts by START/STOP command * Executing time: about 60 seconds Figure 5.2 Checking the HDD connection (B) C141-E235...

  • Page 71: Formatting

    5.4 Checking Operation after Installation and Preparing the HDD for Use 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 “Sense Data and Error Recovery Method”...
  • Page 72 Installation FORMAT UNIT command Initialize entire recording surface of the disk with the FORMAT UNIT command. The FORMAT UNIT command initializes entire surface of the disk using the P lists, verifies data blocks after initialization, and allocates an alternate block for a defect block detected with verification. With initialization, the value "00"...

  • Page 73: Setting Parameters

    5.4 Checking Operation after Installation and Preparing the HDD for Use 5.4.4 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: •...
  • Page 74 Installation Error recovery parameter The following parameters are used to control operations such as the HDD internal error recovery: a. Read/write error recovery parameters (page code = 1) • AWRE: Automatic alternate block allocation at Write operation • ARRE: Automatic alternate block allocation at read operation •...
  • Page 75 5.4 Checking Operation after Installation and Preparing the HDD for Use 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.
  • Page 76 Installation Caching parameters The following parameters are used to optimize the HDD Read-Ahead caching operations under the system environments. Refer to Chapter 3 “Data Buffer Management” of the Fibre Channel Interface Specifications for further details. • IC: Initiator control • RCD: Disabling Read-Ahead caching operations •...
  • Page 77 5.4 Checking Operation after Installation and Preparing the HDD for Use Control mode parameters The following parameters are used to control the tagged queuing and error logging. a. Control mode parameters • Queue algorithm modifier • QErr: Resume or abort remaining suspended commands after sense pending state •...

  • Page 78: Dismounting Drives

    Installation Dismounting Drives 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.

  • Page 79: 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 HDD has the following self-diagnostic function. This function checks the basic operations of the HDD. • Initial self-diagnostics •...
  • Page 80 Diagnostics and Maintenance 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) •...
  • Page 81 The HDD does not reply to the loop for up to 2 seconds after the initial self-diagnostics is started. After that, the HDD 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 is in process of becoming ready [=04-01] or Logical unit not ready, initializing command required [=04-02]) during the interval from the spindle motor becomes stable to the HDD becomes ready.

  • Page 82: Test Programs

    Diagnostics and Maintenance When an error is detected in the self-diagnostics, the HDD terminates the SEND DIAGNOSTIC command with the CHECK CONDITION status. The initiator should issue the REQUEST SENSE command when the CHECK CONDITION status is posted. The sense data collected by the REQUEST SENSE command indicates the detail information of the error detected in the self-diagnostics.

  • Page 83: 6.2 Maintenance Information

    Interface (loop) test The operations of the loop and data buffer on the HDD are checked with the WRITE BUFFER and READ BUFFER commands. Basic operation test The basic operations of the HDD are checked by executing self-diagnosis with the SEND DIAGNOSTIC command (see Subsection 6.1.1).

  • Page 84: Maintenance Requirements

    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. Generally, the following information...

  • Page 85: Maintenance Levels

    Data loss Save data stored on the disk drive to other media 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 86: Revision Numbers

    Diagnostics and Maintenance 6.2.4 Revision numbers The revision number of the disk drive is represented with a letter and a number indicated on the label attached on the HDD. Figure 6.1 shows an example of the label. Figure 6.1 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 87: 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 88: Figure 6.3 Test Flowchart

    Diagnostics and Maintenance 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? Continue operation 6-10 Check host system (Table 6.2) Host system normal? Replaced or repair disk drive Disk drive normal?

  • Page 89: 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 spindle motor of the disk drive stops, and then the disk drive becomes unusable. For an explanation of the operation check before the initial seek, refer to the Section 5.4. 6.3.2 Operation test While the host computer is processing data, the HDD monitors disk drive operation including data...

  • Page 90: Troubleshooting Procedures

    Diagnostics and Maintenance 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.

  • Page 91: Table 6.2 System-Level Field Troubleshooting

    Table 6.2 Item DC power level Check that the DC voltage is within the specified range (±5%). For +5 VDC, measure the voltage between pin 20 (+5V) of the interface connector and the nearest PCA mounting screw (GND) from the interface connector, and confirm the value is from 4.75 to 5.25 VDC.

  • Page 92: Troubleshooting At The Repair Site

    Diagnostics and Maintenance 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 HDD helps with troubleshooting. This sense data makes the error type clear (functional, mechanical, or electrical error).

  • Page 93: 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. C141-E235 6.4 Troubleshooting Procedures 6-15...
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  • Page 95: 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, additional sense code, and additional sense code qualifier, taken from various sense data are repeated.

  • Page 96: Figure 7.1 Format Of Extended Sense Data

    Error Analysis Bit 7 Byte 0 Valid [MSB] Basic [MSB] information SKSV Additional information Detail information Figure 7.1 X‘70’ or X‘71’ (error code) X‘00’ Sense key Information X‘28’ (additional sense data length) Command-specific information Additional sense code Additional sense code qualifier X‘00’...

  • Page 97: 7.2 Sense Data Analysis

    Sense Data Analysis 7.2.1 Error information indicated with sense data Subsection 7.2.2 onwards explain troubleshooting using sense data. For details of the following sense data, refer to Chapter 5 “Sense Data Error Recovery Methods” of the Fibre Channel Interface Specifications. Table 7.1 lists the definition of sense data.

  • Page 98: Sense Data (3-0C-03), (4-40-Xx), And (4-C4-Xx)

    Error Analysis 7.2.2 Sense data (3-0C-03), (4-40-xx), and (4-C4-xx) Sense data (3-0C-03), (4-40-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 99: Appendix A Connector Signal Allocation

    APPENDIX A Connector Signal Allocation Interface (FC-SCA) Connector Signal Allocation This appendix describes the connector signal allocation. C141-E235...

  • Page 100: A.1 Interface (Fc-Sca) Connector Signal Allocation

    Connector Signal Allocation Interface (FC-SCA) Connector Signal Allocation Table A.1 FC-SCA connector: CN1 Pin No. Signal –EN bypass port A +12V +12V +12V –Parallel ESI –Drive present Active LED out –Spindle sync Start_1/Mated Start_2/Mated –EN bypass port B SEL-6 –DSK_WR SEL-5 –DSK_RD SEL-4...

  • Page 101: Glossary

    Additonal Sense Code This is a 1-byte code displayed in the sense data and is information which specifies the type of error that was detected. Common Command Set This is the standard form of SCSI logical specifications stipulated by the operations subcommittee of the American National Standards Institute (ANSI) which stipulates functions which a direct access device (magnetic disk, etc.) should support.
  • Page 102 Glossary Target (TARG) This is the FC device that executes the input/output operations initiated by the initiator. In this manual, target is abbreviated "TARG." GL-2 C141-E235...

  • Page 103: Index

    Acronyms and Abbreviations ACKnowledge Asynchoronous Event Notification ALTernated (block) ARRE Automatic Read Reallocation Enabled ASCII American Standard Code for Information Interchange ASiGned block ATTeNtion American Wire Gauge AWRE Automatic Write Reallocation Enabled bits per inch BuSY BytChk Byte Check C list Target Certification list Control/data Common command set...
  • Page 104 Acronyms and Abbreviations Magnetro Resistive Multiple Select MeSsaGe Original Equipment Manufacturer P list Primary defect list Parts/Number PBdata Physical Block data PC board Printed Circuit board Printed Circuit Assembly Post ERror Page Format PLOSync Phase Lock Oscillator Syncronous Partial Medium Indicator PR4ML Partial Response class 4 Maximum Likelihood Read Continuous...
  • Page 105 Index AC noise filter ... 4-9 actuator ... 1-6 air circulation... 1-6 allowable input voltage and current... 4-8 alternate area... 3-9 alternate block allocation... 3-10 alternate block allocation by FORMAT UNIT command ... 3-11 alternate block allocation by REASSIGN BLOCKS command ... 3-12 alternate block allocation during FORMAT UNIT command execution ...
  • Page 106 Index format capacity ... 3-8 format of extended sense data... 7-2 format parameter...5-9, 5-10 FORMAT UNIT command ... 5-10 formatting ... 5-9 function specification... 2-2 gap ... 3-7 general description... 1-1 general note... 5-1 hardware function test... 6-2 hardware specification ... 2-1 hardware structure ...
  • Page 107 SEND DIAGNOSTIC command... 6-3 sense data... 7-1 1-1x-xx ...7-4 3-0C-03 ...7-4 3-1x-xx ...7-4 4-40-xx ...7-4 4-44-xx ...7-4 4-C4-xx ...7-4 5-2x-xx ...7-4 B-44-xx ...7-4 B-47-xx ...7-4 B-49-00 ...7-4 B-4E-00 ...7-4 E-1D-00...7-4 sense data analysis ... 7-3 sense key, additional sense code, and additional sense code qualifier...
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  • Page 109 Comments & Suggestions List any errors or suggestions for improvement. Page Line Please send this form to the address below. We will use your comments in planning future editions. Address: Fujitsu Learning Media Limited 37-10 Nishikamata 7-chome Oota-ku Tokyo 144-0051 JAPAN...
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