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Fujitsu MAS3367FC Product/maintenance Manual

Fujitsu computer drive user manual.
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  • Page 2 "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 3: Revision History

    Edition Date 2003.07.29 2003.10.07 Table 2.1, 2.2 and 3.2 are altered. Table 2.3 is altered Section(s) with asterisk (*) refer to the previous edition when those were deleted. C141-E198 Revision History Revised section (*1) (Added/Deleted/Altered) — Capacity notation is changed. Misdescription is corrected.
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  • Page 5 This manual describes the MAS3735FC and MAS3367FC (hereafter, MAS series), 3.5 type fixed 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.
  • Page 6 Preface APPENDIX A The appendix gives supplementary information, including the signal assignments of interface connectors. Conventions for Alert Messages This manual uses the following conventions to show the alert messages. An alert message consists of an alert signal and alert statements. The alert signal consists of an alert symbol and a signal word or just a signal word.
  • Page 7 The main alert messages in the text are also listed in the “Important Alert Items.” CONVENTIONS USED IN THIS MANUAL The MAS3735FC and MAS3367FC disk drives are described as "the intelligent disk drive (IDD)", "the drive" or "the device" in this manual.
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  • Page 9: Task Alert Message Page

    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 10: Caution

    Important Alert Items Task Mounting Installation Damage 1. When dismounting the drive which is mounted on the system while power is supplied to it. 2. When dismounting the drive which is mounted on the system while power is not supplied to it. Data loss When the SEND DIAGNOSTIC command terminates with the CHECK CONDITION status, the INIT must collect the error...
  • Page 11: Table Of Contents

    Never open the disk enclosure in the field. Opening the disk enclosure in the field may cause an irreparable fault. 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.
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  • Page 13 MANUAL ORGANIZATION PRODUCT/ MAINTENANCE MANUAL (This manual) Fibre Channel Interface Specifications C141-E198 1. General Description 2. Specifications 3. Data Format 4. Installation Requirements 5. Installation 6. Diagnostics and Maintenance 7. Error Analysis 1. Command Processing 2. Data Buffer Management 3. Command Specification 4.
  • Page 14 REFERENCED STANDARDS The product specifications and functions described in this manual conform to 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 15 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...
  • Page 16 Contents 4.1.1 External dimensions ...4-1 4.1.2 Mounting ...4-3 4.1.3 Notes on mounting ...4-3 Power Supply Requirements ...4-7 Connection Requirements ...4-9 4.3.1 Connector ...4-9 4.3.2 Interface connector ...4-9 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...
  • Page 17 6.2.4 Revision numbers... 6-9 6.2.5 Tools and test equipment ... 6-10 6.2.6 Tests ... 6-10 Operation Check... 6-12 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 ...
  • Page 18 Contents Illustrations Figures Figure 1.1 FC model drives outer view ...1-5 Figure 1.2 Disk/head configuration...1-6 Figure 1.3 Example of FC-AL system configuration...1-7 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/head skew ...3-7 Figure 3.6 Sector format...3-7 Figure 3.7 Alternate block allocation by FORMAT UNIT command ...3-12...
  • Page 19 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 Zone layout and track capacity ... 3-3 Table 3.2 Format capacity... 3-9 Table 4.1 Surface temperature check point ... 4-5 Table 5.1 Motor start mode...
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  • Page 21: Chapter 1 General Description

    CHAPTER 1 General Description Standard Features Hardware Structure System Configuration This chapter describes the feature and configuration of the MAS series intelligent disk drives (IDD). IDDs are high performance large capacity 3.5 type fixed disk drives with an embedded Fibre-Channel controller.
  • Page 22 General Description Standard Features Compactness In a compact enclosure having the 3.5-inch HDD form factor, the IDD contains an FC-AL controller, which supports the Arbitrated Loop technology (FC-AL), a Fibre Channel technology defined by the related ANSI standard. FC-AL standard The IDD provides not only FC-AL basic functions but also the following features: Arbitration Disconnection/Reconnection...
  • Page 23: Standard Features

    Cache feature After executing the READ command, the IDD reads automatically and stores (prefetches) the subsequent data blocks into the data buffer (Read-ahead caching). The high speed sequential data access can be achieved by transferring the data from the data buffer without reaccessing the disk in case the subsequent command requests the prefetched data blocks.
  • Page 24 General Description (12) Automatic alternate block reassignment If a defective data block is detected during read or write the IDD can automatically reassign its alternate data block. (13) Programmable data block length Data can be accessed in fixed-block length units. The data block length is programmable, and can be specified at initializing with a multiple of four within the range of 512 to 528 bytes.
  • Page 25: Hardware Structure

    The disks have an outer diameter of 70 mm (2.8 inch) and an inner diameter of 25 mm (0.98 inch) for MAS series. The disks are good for at least 20,000 contact starts and stops. Each model contains following number of disks. MAS3735FC: 4 MAS3367FC: 2 C141-E198 1.2 Hardware Structure FC model drives outer view...
  • Page 26: Figure 1.2 Disk/head Configuration

    DE contaminant free. To prevent negative pressure in the vicinity of the spindle when the disks begin rotating, a breather filter is attached. The breather filter also equalizes the internal air pressure with the atmospheric pressure due to surrounding temperature changes. MAS3367FC Disk/head configuration C141-E198...
  • Page 27: 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.
  • Page 28 General Description Loop configuration A port embedded with sending and receiving circuits uses differential signals to send and receive data on electric signal lines. A pair of signal lines is called a link. Since signals are sent in one direction on a link, the links in a system must be connected to form a loop.
  • Page 29: Chapter 2 Specifications

    The data format can be changed by reinitializing with the user's system. Table 2.1 Model name Order number Interface type MAS3735FC CA06244-B400 SCA2, FC-AL MAS3367FC CA06244-B200 SCA2, FC-AL C141-E198 Model names and order numbers Capacity Number of disks (user area) 73.49 GB (*)
  • Page 30: Function Specifications

    IDD. The positioning time is as follows: (*3) Function specifications Specification MAS3735FC MAS3367FC 73.49 GB (*6) 36.77 GB (*6) 27,094 285,696 to 360,960 15,000 ± 0.2% 2.00 msec 0.3 ms/0.5 ms...
  • Page 31 The start time is the time from power on or start command to when the IDD is ready, and the stop (*4) time is the time for disks to completely stop from power off or stop command. This value indicates at ready mode. (*5) (*6) 1GB = 1,000,000,000 bytes...
  • Page 32: Environmental Specifications

    (65G) (2 ms) 2451.7m/s (250G) (2 ms) 2451.7m/s (250G) (2 ms) –300 m to 3,000 m –300 m to 12,000 m 0.75 A 3.0 A 1.0 A 0.8 A 1.3 A +5 V/+12 V 250 mVp-p MAS3367FC 0.52 A C141-E198...
  • Page 33: 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 34 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 35 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 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. User space: Storage area for user data Internal test space: Reserved area for diagnostic purposes System space: Area for exclusive use of IDD itself...
  • Page 38 • n = 27,093 (MAS3735FC) 27,149 (MAS3367FC) 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...
  • Page 39: Data Space

    SELECT EXTENDED command. When the number of logical data blocks is specified, as many cylinders as required to place the specified data blocks are allocated in the user space. C141-E198 Zone layout and track capacity Byte/track MAS3367FC 360,960 360,960 360,960 360,960...
  • Page 40: Alternate Spare Area

    Data Format A number starting 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 cylinder that is located at the end of each zone in the user space can be established as an alternate cylinder.
  • Page 41: Track Format

    Cell Note: This drive manages alternate spare areas for each cell, which is a set of cylinders. One cell consists of 28 cylinders. 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

    Data Format Track skew and head 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 head skew) corresponding to the switching time.
  • Page 43: Sector Format

    Cylinder 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 44 Data Format 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 45: Format Capacity

    Model Data heads MAS3735FC MAS3367FC 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. Logical Data Block Addressing Independently of the physical structure of the disk drive, the IDD adopts the logical data block addressing as a data access method on the disk medium.
  • Page 46 Data Format 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 IDD 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 47: Defect Management

    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 IDD 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 48: Figure 3.7 Alternate Block Allocation By Format Unit Command

    Data Format 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 49: Figure 3.8 Alternate Block Allocation By Reassign Blocks Command

    *1 Certification is permitted when DCRT flag is cleared (DCRT flag=0) in 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. 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.
  • Page 50 Data Format 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 IDD automatically executes the alternate block allocation and data duplication on the defective data block detected during the READ or READ EXTENDED command.
  • Page 51 Type 2 (Reassignment of write fail sector) 1) Commands to be applied WRITE command WRITE EXTENDED command 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). For the sectors around defective Servo, alternate blocks are allocated and the data of this WRITE commands are re-written.
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  • 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 IDD and the location of the holes for the IDD mounting screws.
  • Page 54: Figure 4.1 External Dimensions

    Installation Requirements The value marked with (*) indicates the dimension between mounting holes on the bottom face. Figure 4.1 External dimensions C141-E198...
  • Page 55: Notes On Mounting

    4.1.2 Mounting The permissible orientations of the IDD 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 Mounting frame structure Special attention must be given to mount the IDD disk enclosure (DE) as follows. Use the frame with an embossed structure, or the like.
  • Page 56: Figure 4.3 Mounting Frame Structure

    Installation Requirements c) Tightening torque of screw must be secured with 0.59N· m (6kgf· cm) 12%. Impact caused by the electric driver must be within the device specifications. Must be handled on an anti-static mat. 5.0 or less Figure 4.3 Limitation of side-mounting Mount the IDD using the 4 screw holes at the both ends on the both sides as shown in Figure 4.4.
  • Page 57: Table 4.1 Surface Temperature Check Point

    Limitation of bottom-mounting Use all 4 mounting holes on the bottom face. 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 60°C.
  • Page 58: Figure 4.6 Service Clearance Area

    Installation Requirements Service clearance area The service clearance area, or the sides which must allow access to the IDD for installation or maintenance, is shown in Figure 4.6. [Surface P] - Cable connection Figure 4.6 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 59: Power Supply Requirements

    Fibre Channel Interface Specifications. b) Turn on the +12 VDC power in the power supply unit at more than 12-second intervals to start the spindle motors sequentially. C141-E198 4.2 Power Supply Requirements MAS3367FC Time (2 sec/div) Current waveform (+12 VDC)
  • Page 60: Figure 4.8 Ac Noise Filter (recommended)

    Installation Requirements Noise filter To eliminate AC line noise, a noise filter should be installed at the AC input terminal on the IDD power supply unit. The specification of this noise filter is as follows: Attenuation: 40 dB or more at 10 MHz Circuit construction: T-configuration as shown in Figure 4.8 is recommended.
  • Page 61: Connection Requirements

    Connection Requirements 4.3.1 Connector Figure 4.9 shows the locations of interface connector. Interface connector (CN1) (including power supply connector) 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.
  • Page 62: Figure 4.10 Sca2 Type Connector

    Installation Requirements Figure 4.10 SCA2 type connector 4-10 C141-E198...
  • Page 63: Chapter 5 Installation

    CHAPTER 5 Installation Notes on Handling Drives Setting Mounting Drives Dismounting Drives Checking Operation after Installation and Preparing the IDD for Use 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 PCAs and interface connector when removing the drive from the antistatic bag.
  • Page 65: 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 IDD. 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: Dismounting Drives

    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 68 Installation Checking Operation after Installation and Preparing the IDD for Use 5.5.1 Checking initial operation This section explains how to check operation after power is turned on. Since the initial operation of an IDD 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 69: Checking Operation After Installation And Preparing The Idd For Use

    5.5 Checking Operation after Installation and Preparing the IDD for Use c) Continuous sending of the Fault LED Out signal to the interface connector indicates the initial self-diagnosis has detected a problem. In this event and if the situation allows, sense data should be obtained by issuing the REQEUST SENSE command from the initiator (host system).
  • Page 70: Figure 5.1 Checking The Idd Connection (a)

    Installation Motor starts when power is turned on Figure 5.1 Checking the IDD connection (A) C141-E198...
  • Page 71: Figure 5.2 Checking The Idd Connection (b)

    5.5 Checking Operation after Installation and Preparing the IDD for Use Motor starts by START/STOP command * Executing time: about 60 seconds Figure 5.2 Checking the IDD connection (B) C141-E198...
  • Page 72: Formatting

    Installation 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 Fibre Channel Interface Specifications for further details. b) Check the setting of the terminals.
  • Page 73 5.5 Checking Operation after Installation and Preparing the IDD for Use FORMAT UNIT command Initialize all sides of the disk with the FORMAT UNIT command. The FORMAT UNIT command initializes all sides of the disk using the P lists, verifies data blocks after initialization, and allocates an alternate block for a defect block detected with verification.
  • Page 74: Setting Parameters

    Installation 5.5.4 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 Control mode parameter With the MODE SELECT or MODE SELECT EXTENDED command, specify 1 for the "SP"...
  • Page 75 5.5 Checking Operation after Installation and Preparing the IDD for Use Error recovery parameter The following parameters are used to control operations such as IDD internal error recovery: a. Read/write error recovery parameters (page code = 1) • AWRE: Automatic alternate block allocation at Write operation •...
  • Page 76 Installation 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 loop at a read (READ or READ EXTENDED command) or write operation (WRITE,...
  • Page 77 5.5 Checking Operation after Installation and Preparing the IDD for Use Caching parameters The following parameters are used to optimize IDD Read-Ahead caching operations under the system environments. Refer to Chapter 2 of Fibre Channel Interface Specifications for further details. •...
  • Page 78: Spare Disk Drive

    Installation a. Control mode parameters • Queue algorithm modifier • QErr: Resume or abort remaining suspended commands after sense pending state • DQue: Disabling tagged command queuing Spare Disk Drive See Subsection 2.1.1, “Model name and order number,” to order a disk drive for replacement or as a spare 5-16 Parameter...
  • Page 79: Table 6.1 Self-diagnostic Functions

    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 Online self-diagnostics (SEND DIAGNOSTIC command) Table 6.1 lists the contents of the tests performed with the 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) Memory (RAM) Data buffer b.
  • Page 81 The IDD does not reply to the loop 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 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 IDD becomes ready.
  • Page 82: Test Programs

    Diagnostics and Maintenance The INIT 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. The IDD status after the CHECK CONDITION status is posted differs according to the type of the detected error.
  • Page 83: Maintenance Information

    Interface (loop) test The operations of the loop 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 84: Maintenance Requirements

    Diagnostics and Maintenance Always ground yourself with a wrist strap connected to ground before handling. ESD (Electrostatics Discharge) may cause the damage to the device. Do not remove a PCA. Do not use a conductive cleaner to clean a disk drive assembly. 6.2.2 Maintenance requirements Preventive maintenance...
  • Page 85 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 86: 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 87: 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 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 88: Tools And Test Equipment

    Diagnostics and Maintenance 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 89: Figure 6.3 Test Flowchart

    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 C141-E198 6.2 Maintenance Information Check host system (Table 6.2) Host system normal? Replaced or repair disk drive Disk drive normal?
  • Page 90: Operation Check

    Diagnostics and Maintenance 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 IDD sends the Fault LED Out signal to the interface connector. The spindle motor of the disk drive then stops, and the disk drive is unusable.
  • Page 91: 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 92: Table 6.2 System-level Field Troubleshooting

    Diagnostics and Maintenance Table 6.2 Item 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 93: 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).
  • Page 94: Troubleshooting With Parts Replacement In The Factory

    Diagnostics and Maintenance 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.
  • 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, sense code, and subsense code, 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 Sense code Subsense code X‘00’ Sense key-specific information CDB operation code Format of extended sense data [LSB]...
  • Page 97: 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. Table 7.1 lists the definition of sense data. For details of sense data, refer to the Fibre Channel Interface Specifications. Table 7.1 Sense data Sense Sense...
  • Page 98: Sense Data (3-0c-03), (4-40-xx), (4-44-xx), And (4-c4-xx)

    Error Analysis 7.2.2 Sense data (3-0C-03), (4-40-xx), (4-44-xx), and (4-C4-xx) Sense data (3-0C-03), (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.
  • 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-E198...
  • Page 100: Table A.1 Fc-sca Connector: Cn1

    Connector Signal Allocation Interface (FC-SCA) Connector Signal Allocation Table A.1 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 –ENCL_ACK SEL-3 Fault LED out...
  • Page 101: Glossary

    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. Command Descriptor Block A series of data which describes commands related to input/output operations, sent from the initiator to the target.
  • Page 102 Glossary Target (TARG) This is the FC device that executes the input/output operations initiated by the initiator (INIT). In this manual, target is abbreviated "TARG." GL-2 C141-E198...
  • Page 103 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

    Index +12 VDC ... 4-7 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 5-3D-00 ... 7-4 AC noise filter ... 4-8 actuator ... 1-6 air circulation... 1-6 allowable input voltage and current... 4-7 alternate area...
  • Page 106 Index example of FC-AL system configuration ... 1-7 external dimension... 4-1 external magnetic field ... 4-6 factory maintenance... 6-8 FC model drives outer view... 1-5 FC-AL standard ... 1-2 FC-SCA connector... A-2 fibre channel interface error... 7-4 field maintenance... 6-8 finding possibly faulty part...
  • Page 107 reserve and release function ... 1-3 revision label ... 6-9 revision number ... 6-9 sector format... 3-7 seek test ... 6-2 self-diagnostic... 6-1 SEND DIAGNOSTIC command... 6-3 sense data... 7-1 sense data analysis ... 7-3 sense key, sense code, and subsense code ... 7-1 sequential starting of spindle motor...
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  • Page 109 FUJITSU LIMITED Storage Products Group 4-1-1 Kamikodanaka, Nakahara-ku, Kawasaki, 211-8588, Japan TEL: 81-44-754-2130 FAX: 81-44-754-8346 FUJITSU COMPUTER PRODUCTS OF AMERICA, INC. 2904 Orchard Parkway, San Jose, California 95134-2009, U.S.A. TEL: 1-408-432-6333 FAX: 1-408-894-1709 FUJITSU CANADA INC. 2800 Matheson Blvd. East, Mississauga, Toronto,...
  • Page 110 This page is intentionally left blank.
  • Page 111 General appearance: Technical level: Too high Overall rating of this publication: Good Overseas office: Note) Local representative should pass this form to the section in charge of distribution in FUJITSU. Reply READER’S COMMENT FORM Manual MAS3735FC MAS3367FC DISK DRIVES PRODUCT/MAINTENANCE...
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