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Fujitsu MAU3147RC Product/Maintenance Manual

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C141-E222-01EN
MAU3147RC
MAU3073RC
MAU3036RC
HARD DISK DRIVES
PRODUCT/MAINTENANCE MANUAL

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Summary of Contents for Fujitsu MAU3147RC

  • Page 1 C141-E222-01EN MAU3147RC MAU3073RC MAU3036RC 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 REVISION RECORD Edition Date published Revised contents February, 2005 Specification No.: C141-E222-**EN C141-E222...
  • Page 4 Related Standards Product specifications and functions described in this manual comply with the following ANSI (*1) standards. Document number Title T10/1236D Rev.20 SCSI Primary Commands-2 (SPC-2) [NCITS.351:2001] T10/996D Rev. 8c SCSI-3 Block Commands (SBC) [NCITS.306:1998] T10/1157D Rev. 24 SCSI Architecture Model-2 (SAM-2) T10/1561D Rev.
  • Page 5 Preface This manual describes MAU3147RC, MAU3073RC, and MAU3036RC 3.5" type hard disk drives with an embedded Serial Attached SCSI (SAS). 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 CONVENTIONS USED IN THIS MANUAL MAU3147RC, MAU3073RC, and MAU3036RC disk drives are described as "the hard disk drives (HDD)", "the disk drive" or "the device" in this manual. Decimal number is represented normally. Hexadecimal number is represented as X'17B9', 17B9h or 17B9H.
  • Page 7 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 8 Data loss Save data stored on the disk drive to other media before requesting repair. Maintenance Fujitsu does not assume responsibility if data is destroyed during servicing or repair. Electreical shock 1. To avoid injury, do not touch the PCA.
  • Page 9 MANUAL ORGANIZATION PRODUCT/ 1. General Description MAINTENANCE MANUAL 2. Specifications 3. Data Format (This manual) 4. Installation Requirements 5. Installation 6. Diagnostics and Maintenance 7. Error Analysis INTERFACE 1. Interface SPECIFICATIONS 2. Command Processing 3. Data Buffer Management 4. Command Specifications 5.
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  • Page 11: Table Of Contents

    CONTENTS CHAPTER 1 General Description..............1-1 Standard Features ................1-2 Hardware Structure................1-5 System Configuration ................1-6 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 12 Contents 4.1.1 Dimensions ..................4-1 4.1.2 Mounting orientations ................4-2 4.1.3 Notes on mounting ................4-3 Power Supply Requirements..............4-7 Connection Requirements..............4-8 4.3.1 Connector.....................4-8 4.3.2 Interface connector ................4-9 CHAPTER 5 Installation ................. 5-1 Notes on Handling Drives..............5-1 Setting....................5-3 5.2.1 Port Address..................5-3 Mounting Drives ..................5-3 5.3.1 Mounting procedures................5-3 Checking Operation after Installation and Preparing the HDD for Use ....................5-4...
  • Page 13 Contents 6.2.5 Tools and test equipment ..............6-8 6.2.6 Tests....................6-9 Operation Check................6-10 6.3.1 Initial seek operation check..............6-10 6.3.2 Operation test ..................6-10 6.3.3 Diagnostic test ................... 6-10 Troubleshooting Procedures............... 6-11 6.4.1 Outline of troubleshooting procedures ..........6-11 6.4.2 Troubleshooting with disk drive replacement in the field ....
  • Page 14 Contents Illustrations Figures Figure 1.1 Example of SAS system configuration (Dual port internal cabled environment)........1-6 Figure 1.2 Example of SAS system configuration (Dual port internal backplane environment) ....... 1-6 Figure 3.1 Cylinder configuration............... 3-2 Figure 3.2 Spare area in cell ............... 3-4 Figure 3.3 Alternate cylinder ..............
  • Page 15 Contents 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 and maximum temperature ..4-5 Table 4.2 Interface connector (SAS plug) signal allocation:CN1....
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  • Page 17: 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 (HDD). The HDD are high performance large capacity 3.5" fixed disk drives with an embedded Serial Attached SCSI (SAS) controller.
  • Page 18 The HDD has two pairs of driver and receiver set (PHY) for the SAS to support dual SAS port connection. On MAU3147RC, MAU3073RC, and MAU3036RC, Primary and Secondary Ports on SAS plug connector (2 physical links plus power connections) are used for SAS port connection.
  • Page 19: 1.1 Standard Features

    1.1 Standard Features Cache feature After executing the READ command, the HDD 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 20 General Description Error rate increase The drive format at factory shipment is generally 512 bytes. The recoverable Error of the drive might increase when the format would be modified from 512 bytes to the following values: 516 bytes, 520 bytes, 524 bytes, 528 bytes. The recoverable Error referred here is sense data (1-13-xx).
  • Page 21: Hardware Structure

    1.1 Standard Features (20) Microcode downloading The HDD implements the microcode download feature. This feature achieves easy maintainability of the HDD and function enhancing. Hardware Structure The HDD is composed of the disks, heads, and spindle motor mounted disk enclosure (DE) with actuator as well as read/write pre-amp with the printed circuit assembly (PCA) of the controller.
  • Page 22: System Configuration

    General Description System Configuration For the Serial Attached SCSI, the ANSI standard defines Point-to-Point technology. Figure 1.1 and Figure 1.2 give examples of the SAS system configuration. Figure 1.1 Example of SAS system configuration (Dual port internal cabled environment) Figure 1.2 Example of SAS system configuration (Dual port internal backplane environment) Port addressing Every device connected with the SAS protocol has a unique address (SAS address).
  • Page 23: Chapter 2 Specifications

    The data format can be changed by reinitializing with the user's system. Table 2.1 Model names and order numbers Capacity Model name Order number Interface type (user area) MAU3147RC CA06646-B400 147 GB (*) MAU3073RC CA06646-B200 73.5 GB (*) MAU3036RC CA06646-B100 36.7 GB (*)
  • Page 24: Function Specifications

    Specifications 2.1.2 Function specifications Table 2.2 shows the function specifications of the HDD. Table 2.2 Function specifications Specification Item MAU3147RC MAU3073RC MAU3036RC Formatted capacity/device (*1) 147 GB (*2) 73.5 GB (*2) 36.7 GB (*2) Number of disks Number of heads...
  • Page 25 2.1 Hardware Specifications (*3) The seek time is as follows: Seek Difference [4096 Cyl/div] (*4) The start time is the time from power on or start command to when the HDD is ready, and the stop time is the time for disks to completely stop from power off or stop command. This value indicates during idle mode.
  • Page 26: Environmental Specifications

    Specifications 2.1.3 Environmental specifications Table 2.3 lists environmental and power requirements. Table 2.3 Environmental/Power requirements Specification Item MAU3147RC MAU3073RC MAU3036RC Operating 5 to 55 °C Non-operating –40 to 70 °C Temperature Transport (within a week) –40 to 70 °C (*1) DE surface temperature at 5 to 60 °C...
  • Page 27: Error Rate

    2.1 Hardware Specifications (*1) For detail condition, see Section 4.1. (*2) Vibration applied to the drive is measured at near the mounting screw hole on the frame as much as possible. (*3) At random seek write/read and default on retry setting with log sweep vibration. (*4) At power-off state after installation Vibration displacement should be less than 2.5 mm.
  • Page 28 Specifications Mean Time To Repair (MTTR) MTTR is the average time taken by a well-trained service mechanic to diagnose and repair a drive malfunction. The drive is designed for a MTTR of 30 minutes or less. Service life The service life under suitable conditions and treatment is as follows. The service life is depending on the environment temperature.
  • Page 29: 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 30: Figure 3.1 Cylinder Configuration

    Data Format 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 Cylinder configuration 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 31 3.1 Data Space 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 32: 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 33: Track Format

    3.1 Data Space 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 34: Sector Format

    Data Format Track skew Head Track skew Head skew Head Leading logical sector in head p+1 Figure 3.5 Track skew/head skew 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 35 3.1 Data Space 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 36: Format Capacity

    READ CAPACITY, MODE SENSE, or MODE SENSE EXTENDED command after initializing the disk medium. Table 3.1 Format capacity Model Data block length User blocks Format capacity (GB) MAU3147RC 287,277,984 147.0 (*) MAU3073RC 143,638,992 73.5 (*) MAU3036RC 71,819,496 36.7 (*)
  • Page 37: 3.2 Logical Data Block Addressing

    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 38: 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 39: Figure 3.7 Alternate Block Allocation By Format Unit Command

    3.3 Defect Management 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 40: 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 41 3.3 Defect Management 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 42 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 43: 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 Dimensions Figures 4.1 show the dimensions of the HDD and the location of the mounting screw holes. [Units: mm] Figure 4.1 Dimensions...
  • Page 44 Installation Requirements 4.1.2 Mounting orientations The permissible orientations of the HDD are shown in Figure 4.3, and the tolerance of the angle is ±5° from the horizontal plane. (a) Horizontal –1 (b) Horizontal –2 (c) Vertical –1 (d) Vertical –2 (e) Upright mounting –1 (f) Upright mounting –2 Direction of gravity...
  • Page 45: Notes On Mounting

    4.1 Mounting Requirements 4.1.3 Notes on mounting Damage Never remove any labels from the drive or deface them in any way. Mounting frame structure Special attention must be given to mount the HDD 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 46 Installation Requirements Limitation of side-mounting Mount the HDD using the 4 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 2 holes on both ends. (Total 6 screws for 6 holes enclosed) Holes for mounting screw...
  • Page 47: Figure 4.5 Surface Temperature Measurement Points

    4.3 Connection Requirements Environmental temperature Temperature condition at installed in a cabinet is indicated with ambient temperature measured 30 mm from the disk drive. At designing the system cabinet, consider following points. • Make a suitable air flow so that the DE surface temperature never exceed 60°C. •...
  • Page 48 Installation Requirements 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 X] • Holes for mounting screw [Surface Y] (Both side) • Interface connection [Surface Z] •...
  • Page 49: Power Supply Requirements

    Subsection 2.1.3. (For other requirements, see Items (4) and (5) below.) Current waveform (reference) Figure 4.7 shows the spin-up current waveform of +12V DC. MAU3147RC MAU3073RC MAU3036RC Time (2 sec/div) Time (2 sec/div) Time (2 sec/div) Figure 4.7...
  • Page 50: Connection Requirements

    Installation 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 51: Interface Connector

    4.3 Connection Requirements 4.3.2 Interface connector Figure 4.10 shows the SAS type interface connector (SAS plug) overview. Table 4.2 lists the signal allocation of the SAS plug on the HDD. Figure 4.10 SAS plug connector overview C141-E222...
  • Page 52: Table 4.2 Interface Connector (Sas Plug) Signal Allocation:cn1

    Installation Requirements Table 4.2 Interface connector (SAS plug) signal allocation:CN1 Pin No. Signal Description GND for SAS Primary Port SAS Primary Port Receive (positive) signal SAS Primary Port Receive (negative) signal GND for SAS Primary Port SAS Primary Port Transmit (negative) signal SAS Primary Port Transmit (positive) signal GND for SAS Primary Port GND for SAS Secondary Port...
  • Page 53: 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 2.3 must be strictly observed.
  • Page 54 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 55: 5.2 Setting

    5.2 Setting Setting 5.2.1 Port Address Every device that uses the SAS interface has a unique SAS address, and commands use an SAS address to identify each device for I/O operations. Every HDD is assigned a unique SAS address before shipment from the factory, so setting of an address is not required before the HDD is used. Mounting Drives 5.3.1 Mounting procedures...
  • Page 56: Checking Operation After Installation And Preparing The Hdd For Use

    Installation Checking Operation after Installation and Preparing the HDD for Use 5.4.1 Checking initial operation The procedure for verifying operation after power-on is explained below. Initial diagnosis at the time of power-on: a) When the HDD is turned on, the Active LED blinks and the HDD performs the initial self- diagnosis (controller hardware diagnosis).
  • Page 57: 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 58 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 59: Setting Parameters

    5.4 Checking Operation after Installation and Preparing the HDD for Use 5.4.3 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 60 Installation Error recovery parameters The following parameters are used to control operations such as HDD internal error recovery: a. Read/write error recovery parameters (page code = 1) Parameter Default value • AWRE: Automatic alternate block allocation at Write 1 (enabled) operation •...
  • Page 61 5.4 Checking Operation after Installation and Preparing the HDD for Use Caching parameters The following parameters are used to optimize HDD Read-Ahead caching operations under the system environments. Refer to Chapter 3 “Data Buffer Management” of the Serial Attached SCSI Interface Specifications for further details.
  • Page 62: 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 63: 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 64 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 65 6.1 Diagnostics Online self-diagnostics (SEND DIAGNOSTIC command) The INIT can make the HDD execute self-diagnostics by issuing the SEND DIAGNOSTIC command. The INIT specifies the execution of self-diagnostics by setting 1 for the SelfTest bit on the CDB in the SEND DIAGNOSTIC command and specifies the test contents with the UnitOfl bit.
  • Page 66: Test Programs

    Diagnostics and Maintenance When an error is detected in the hardware function test, the HDD posts the CHECK CONDITION status for all I/O operation request except the REQUEST SENSE command. The error status is not cleared even if the error information (sense data) is read. Only when the power is turned off or re-turned on, the status can be cleared.
  • Page 67: 6.2 Maintenance Information

    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 68: 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...
  • Page 69: 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 70: Tools And Test Equipment

    (see Figure 6.2). 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 71: Tests

    6.2 Maintenance Information 6.2.6 Tests This disk drive can be tested in the following ways: • Initial seek operation check (See Subsection 6.3.1) • Operation test (See Subsection 6.3.2) • Diagnostic test (See Subsection 6.3.3) Figure 6.3 shows the flow of these tests. Start Start self-test by turning the power on...
  • Page 72: 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 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.
  • Page 73: Troubleshooting Procedures

    6.4 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.
  • Page 74: Table 6.2 System-Level Field Troubleshooting

    Diagnostics and Maintenance Table 6.2 System-level field troubleshooting Item Recommended work DC power level Check that the DC voltage is within the specified range (±5%). For +5V DC, measure the voltage between pin P8 (+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 75: Troubleshooting At The Repair Site

    6.4 Troubleshooting Procedures 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 76: 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 77: 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 78: Figure 7.1 Format Of Extended Sense Data

    Error Analysis Bit 7 Byte 0 Valid X‘70’ or X‘71’ (error code) X‘00’ Sense key [MSB] Information [LSB] X‘28’ (additional sense data length) [MSB] Basic information Command-specific information [LSB] Additional sense code Additional sense code qualifier X‘00’ SKSV Sense key-specific information Port CDB operation code Additional...
  • Page 79: Sense Data Analysis

    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 Interface Specifications. Table 7.1 lists the definition of sense data.
  • Page 80: 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 81: Glossary

    Glossary Additional 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 82 Glossary Target (TARG) This is the SAS device that executes the input/output operations initiated by the initiator (INIT). In this manual, target is abbreviated "TARG." GL-2 C141-E222...
  • Page 83 Acronyms and Abbreviations Disable Transfer on Error Alternating Current ACKnowledge Error Correction Code Asynchoronous Event Notification Enable Early Recovery ALTernated (block) EVPD Enable Vital Product Data ARRE Automatic Read Reallocation Enabled ASCII American Standard Code for Information Interchange ASiGned block Frame Ground ATTeNtion FIFO...
  • Page 84 Acronyms and Abbreviations Magnetro Resistive Transfer Block Multiple Select Tracks Per Inch MeSsaGe TeRMinator Original Equipment Manufacturer UnitOfl Unit Offline P list Primary defect list Voice Coil Motor Parts/Number Vital Product Data PBdata Physical Block data Vendor Unique PC board Printed Circuit board Printed Circuit Assembly Post ERror Page Format...
  • Page 85 Index data security at power failure ....... 2-6 data space ............ 3-1 defect list ............3-10 AC noise filter ..........4-8 defect management ........3-10 actuator............1-5 defective block slipping ....... 1-4 allowable input voltage and current ....4-7 definition of sense data......... 7-3 alternate area ..........
  • Page 86 Index general note..........5-1 note on handling drive ........5-1 note on mounting ..........4-3 hardware function test ........6-2 hardware specification........2-1 online self-diagnostic ........6-3 hardware structure ........1-5 operation check...........6-10 head ............. 1-5 operation test ..........6-10 high speed positioning........1-4 outline of troubleshooting procedure...6-11 high-speed data transfer........
  • Page 87 Index 5-2x-xx ..........7-4 B-44-xx ..........7-4 test ..............6-9 B-47-xx ..........7-4 test flowchart ..........6-9 B-4B-xx..........7-4 test program ..........6-4 B-4E-00 ..........7-4 tool and test equipment ........ 6-8 E-1D-00..........7-4 track format ..........3-5 sense data analysis........7-3 track skew and head skew ......
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  • Page 89 List any errors or suggestions for improvement. Page Line Contents 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 Fax: 81-3-3730-3702...
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