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3.3 Defect Management

C141-E235

3-11

(1)

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. When they are used up, unused spare sectors in the alternate cylinder are
allocated to the subsequent sectors in the cylinder by means of alternate sector treatment. Figure 3.7
is examples of the alternate block allocation during the FORMAT UNIT command execution.

Figure 3.7 Alternate block allocation by FORMAT UNIT command

During FORMAT UNIT command, alternate block allocation is conducted in following cases:

1) Unrecovered write offtrack condition during a media write

2) Uncorrectable Data Error during a media read (certification) *1

: Unused spare sector

: Defective sector

: n represents a logical data block number

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Summary of Contents for HARD DISK DRIVES MAW3073FC

Page 1: ...C141 E235 01EN MAW3300FC MAW3147FC MAW3073FC HARD DISK DRIVES PRODUCT MAINTENANCE MANUAL ...

Page 2: ... system in accordance with the descriptions or instructions contained herein including any liability for incidental or consequential damages arising therefrom FUJITSU DISCLAIMS ALL WARRANTIES REGARDING THE INFORMATION CONTAINED HEREIN WHETHER EXPRESSED IMPLIED OR STATUTORY FUJITSU reserves the right to make changes to any products described herein without further notice and without obligation This...

Page 3: ...iver and so on In this case you may require to take action to resolve any affection due to this device 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 ...

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Page 5: ...C141 E235 REVISION RECORD Edition Date published Revised contents 01 June 2005 Specification No C141 E235 EN ...

Page 6: ...TTATH 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 ANSI X3 269 199X FIBRE CHANNEL PROTOCOL FOR SCSI SCSI FCP 1 ANSI American National Standard Institute In case of conflict between this manual and any referenced document this manual takes p...

Page 7: ...nd system configuration of the HDD Chapter 2 Specifications This chapter gives detailed specifications of the disk drives and their installation environment Chapter 3 Data Format This chapter describes the data structure of the disk the address method and what to do about media defects Chapter 4 Installation Requirements This chapter describes the basic physical and electrical requirements for ins...

Page 8: ...s of an alert symbol and a signal word or just a signal word The following are the alert signals and their meanings This indicates a hazardous situation could result in minor or moderate personal injury if the user does not perform the procedure correctly This alert signal also indicates that damages to the product or other property may occur if the user does not perform the product correctly This...

Page 9: ...ents 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: ...e sector data is divided into 3 interleaving sectors and ECC is performed in each sector where the maximum number of errors up to 9 byte can be corrected Total maximum byte 9 byte 3 interleave 27 byte If the error of read sector keeps allowable error byte number correction is performed However if error byte exceeds its allowable number correction may not be performed properly 2 5 Installation Dama...

Page 12: ...tor breaks off contact and wait until the spindle motor stops about 30 seconds before dismount the drive When storing or transporting the drive put it in an antistatic case Fcell Shown in Section 5 1 2 When dismounting the drive which is mounted on the system while power is not supplied to it Do not move the drive until the drive stops completely about 30 seconds if the spindle motor was stopped b...

Page 13: ... PCA This operation is required to prevent unexpected or unpredictable operation 3 Do not use a conductive cleaner to clean a disk drive assembly 6 5 Damage 1 Never remove any labels from the drive 2 Never open the disk enclosure for any reason Doing so will void any warranties 6 14 Data loss Save data stored on the disk drive to other media before requesting repair Fujitsu does not assume respons...

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Page 15: ...ions 3 Data Format 4 Installation Requirements 5 Installation 6 Diagnostics and Maintenance 7 Error Analysis FIBRE CHANNEL INTERFACE SPECIFICATIONS 1 Fibre Channel Interface 2 Command Processing 3 Data Buffer Management 4 Command Specifications 5 Sense Data and Error Recovery Methods 6 Disk Media Management ...

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Page 17: ...vironmental specifications 2 4 2 1 4 Error rate 2 5 2 1 5 Reliability 2 5 CHAPTER 3 Data Format 3 1 3 1 Data Space 3 1 3 1 1 Cylinder configuration 3 1 3 1 2 Alternate spare area 3 4 3 1 3 Track format 3 5 3 1 4 Sector format 3 6 3 1 5 Format capacity 3 8 3 2 Logical Data Block Addressing 3 8 3 3 Defect Management 3 10 3 3 1 Defect list 3 10 3 3 2 Alternate block allocation 3 10 CHAPTER 4 Installa...

Page 18: ...ves 5 4 5 3 1 Mounting procedures 5 4 5 4 Checking Operation after Installation and Preparing the HDD for Use 5 5 5 4 1 Checking initial operation 5 5 5 4 2 Checking connection 5 6 5 4 3 Formatting 5 9 5 4 4 Setting parameters 5 11 5 5 Dismounting Drives 5 16 5 6 Spare Disk Drive 5 16 CHAPTER 6 Diagnostics and Maintenance 6 1 6 1 Diagnostics 6 1 6 1 1 Self diagnostics 6 1 6 1 2 Test programs 6 4 6...

Page 19: ...15 6 4 5 Finding possibly faulty parts 6 15 CHAPTER 7 Error Analysis 7 1 7 1 Error Analysis Information Collection 7 1 7 1 1 Sense data 7 1 7 1 2 Sense key additional sense code and additional sense code qualifier 7 1 7 2 Sense Data Analysis 7 3 7 2 1 Error information indicated with sense data 7 3 7 2 2 Sense data 3 0C 03 4 40 xx and 4 C4 xx 7 4 7 2 3 Sense data 1 1x xx 3 1x xx and E 1D 00 Disk r...

Page 20: ...N BLOCKS command 3 12 Figure 4 1 Dimensions 4 2 Figure 4 2 HDD orientations 4 3 Figure 4 3 Mounting frame structure 4 4 Figure 4 4 Limitation of side mounting 4 5 Figure 4 5 Surface temperature measurement points 4 6 Figure 4 6 Service clearance area 4 7 Figure 4 7 Current waveform 12 VDC 4 8 Figure 4 8 AC noise filter recommended 4 9 Figure 4 9 Connector location 4 9 Figure 4 10 SCA2 type connect...

Page 21: ... 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 Table 7 1 Definition of sense data 7 3 Table A 1 FC SCA connector CN1 A 2 ...

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Page 23: ...rivate 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 The high speed data transfer and long distance transmission capabilities of Fibre Channel technology and the powerful command set the HDDs facilitate creation of high performance and highly reliable disk subsystems with large storage ca...

Page 24: ...nal environmental laws of the EU member nations 3 FC AL standard The HDD provides not only FC AL basic functions but also the following features Arbitration Disconnection Reconnection Data bus parity The SCSI commands can manipulate data through logical block addressing regardless of the physical characteristics of the disk drive This allows software to accommodate future expansion of system funct...

Page 25: ... without reaccessing the disk in case the subsequent command requests the prefetched data blocks The Write Cache feature is supported When this feature is enabled the status report is issued without waiting for completion of write processing to disk media thereby enabling high speed write processing When Write Cache is enabled you should ensure that the cached data is surely flushed to the disk me...

Page 26: ...format at factory shipment is generally 512 bytes 2 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 3 The recoverable Error referred here is sense data 1 13 xx 15 Defective block slipping A logical data block can be reallocated in a physical sequence by slipping the defective data blo...

Page 27: ...s makes it ideal for office use 22 Microcode downloading The HDD implements the microcode download feature This feature easily achieves maintenance and function enhancement of the HDD 1 2 Hardware Structure An outer view of the HDD is given in Figures 1 1 The HDD has a disk enclosure DE and a printed circuit assembly PCA The DE includes heads on an actuator and disks on a spindle motor mounted on ...

Page 28: ...lean room to keep out particles and other contaminants The DE has a closed loop air recirculation system Using the movement of the rotating disks air is continuously cycled through a filter This filter will trap any particles floating inside the enclosure and keep the air inside the DE contaminant free To prevent negative pressure in the vicinity of the spindle when the disks begin rotating a brea...

Page 29: ...ks in a system must be connected to form a loop The FC AL interface sends and receives data via nodes on the loop Therefore if a node connected to a loop is powered off or the interface signals of a node cannot be sent or received correctly the loop does not work normally A common solution preventing this problem from occurring is to add a port bypass circuit on the back plane of the system BC in ...

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Page 31: ...t 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 names and order numbers Model name Order number Interface type Capacity user area MAW3300FC CA06691 B400 SCA2 FC AL 300 0 GB MAW3147FC CA06691 B200 SCA2 FC AL 147 0 GB MAW3073FC CA06691 B100 SCA2 FC AL 73 5 GB 1GB 1 000 000 000 ...

Page 32: ...ernal dimensions Height Width Depth 25 4 mm 101 6 mm 146 0 mm Weight 0 75 kg max Power consumption 5 11 9 W typ Interface Cable length 30 m max Areal density 60 to 75 Gbit inch2 Disk drive 132 4 MB s Data transfer rate 6 FC AL 212 5 MB s max Logical data block length 512 516 520 524 528 byte Fixed length 7 Command specification FC PLDA NCITS TR 19 FC PH ANSI X3 230 1994 FC PH 2 ANSI X3 297 1996 FC...

Page 33: ...n the HDD is ready and the stop time is the time for disks to completely stop from power off or stop command 5 This value indicates during idle mode Power supply at nominal voltage 1 25 C ambient 6 The maximum data transfer rate may be restricted to the response speed of initiator and by transmission characteristics 1MB s 1 000 000 bytes s 7 Refer to 1 1 14 8 1MB 1 048 576 bytes ...

Page 34: ...emperature 29 C no condensation Operating 3 0 6 mm 5 to 20Hz 9 8 m s2 1G 20 to 300 Hz or less Non operating 4 3 1 mm 5 to 20Hz 49m s2 5G 20 to 300Hz or less Vibration 2 Transport packaged 3 1 mm 5 to 20Hz 49m s2 5G 20 to 300Hz or less Operating 637 4m s2 65G 2 ms duration Non operating 2205m s2 225G 2 ms duration Shock 2 Transport packaged 2205m s2 225G 2 ms duration Operating 305 to 3 048 m 1 000...

Page 35: ...he disk medium equally 1 Unrecoverable error rate Errors which cannot be recovered within 63 retries and ECC correction should not exceed 10 per 1016 bits read Data loss The drive adopts Reed Solomon code for ECC The sector data is divided into 3 interleaving sectors and ECC is performed in each sector where the maximum number of errors up to 9 byte can be corrected Total maximum byte 9 byte 3 int...

Page 36: ...nutes or less 3 Service life The service life under suitable conditions and treatment is as follows The service life is depending on the environment temperature Therefore the user must design the system cabinet so that the average DE surface temperature is as low as possible DE surface temperature 40 C or less 5 years DE surface temperature 41 C to 45 C 4 5 years DE surface temperature 46 C to 50 ...

Page 37: ... 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: ...ata block addressing method described in Section 3 2 The internal test space is used by Read write test of self diagnostics test but user can t use direct access The system space is accessed inside the HDD at power on or during the execution of a specific command but the user cannot directly access the system space 3 1 1 Cylinder configuration The HDD allocates cylinders to the user space Internal...

Page 40: ...ternal test cylinder Spare Sectors per Cell 0 0 0 0 1 28 User Space for Cell 0 0 29 1 30 0 57 User Space for Cell 1 0 m 28 P1 m User Space for Cell P1 0 Spare Sectors per Cell P1 0 Alternate Cylinder User Space for Cell xx 1 User Space for Cell yy 17 User Space Primary Cylinder 0 n 1 1 1 17 n Spare Sectors per Cell 1 0 Figure 3 1 Cylinder configuration Apart from the above logical configuration th...

Page 41: ...ill not be used Always one cylinder is located at the end of each zone in the user space as an alternate cylinder Alternate cylinders will be used for alternate blocks See Subsections 3 1 2 and 3 3 2 for details 2 Internal test space The Internal test space is an area for diagnostic purposes only and its data block length is always 512 bytes The Internal test space consists of 8 cylinders and oute...

Page 42: ...ecified by the MODE SELECT command The number of spare sectors per cell can be specified from 0 to 240 The default for the spare sectors number is 240 Note This drive manages alternate spare areas for each cell which is a set of cylinders One cell consists of 29 cylinders Figure 3 2 Spare area in cell An alternate cylinder is used when spare sectors in a cell are used up or 0 is specified as the n...

Page 43: ...rack format 2 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 Figure 3 5 shows how the data block is allocated in each track At the cylinder switching location in a head the first logical data block in track t 1 i...

Page 44: ... determines appropriate values for the track skew factor and the head skew factor according to the specified logical data block length The value can be read out by the MODE SENSE or MODE SENSE EXTENDED command after the track has been formatted 3 1 4 Sector format Each sector on the track consists of an ID field a data field and a gap field which separates them Figure 3 6 gives sector format examp...

Page 45: ...e logical data block which is specified with a parameter in the MODE SELECT command Any multiple of 4 between 512 and 528 bytes can be specified as the length 5 BCRC It is a 4 byte error detection code Errors in the ID field Single burst errors with lengths of up to 32 bits for each logical block can be detected 6 ECC This is the 54 byte code that allows detection and correction of errors in the d...

Page 46: ...ock length the maximum logical block address and the number of the logical data blocks can be read out by a 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 MAW3300FC 585 937 500 300 0 MAW3147FC 287 277 984 147 0 MAW3073FC 512 143 638 992 73 5 1GB 1 000 000 000 bytes Note Tota...

Page 47: ...e same cell according to steps 1 to 4 subsequent logical data blocks are assigned in ascending order of cell number in the same way as in steps 1 to 4 Logical data blocks are assigned starting from track 0 in the next cell until the last cylinder immediately preceding the alternate cylinder n 1 shown in Figure 3 1 of the zone except alternate cylinders in cells in the user space When the logical d...

Page 48: ...s of the defect management method inside the HDD The initiator can access all logical data blocks in the user space as long as there is no error Spare sectors to which alternate blocks are allocated can be provided in alternate cylinders See Subsection 3 1 2 for details The initiator can specify the size and area for spare sectors by the MODE SELECT command at the time of the initialization of the...

Page 49: ... the alternate cylinder are allocated to the subsequent sectors in the cylinder by means of alternate sector treatment Figure 3 7 is examples of the alternate block allocation during the FORMAT UNIT command execution Figure 3 7 Alternate block allocation by FORMAT UNIT command During FORMAT UNIT command alternate block allocation is conducted in following cases 1 Unrecovered write offtrack conditi...

Page 50: ...ocation is made to initialize format the disk 2 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 The alternate block is allocated to unused spare sectors in the alternate cylinder Figure 3 8 is examples of the alte...

Page 51: ...of the above commands is issued to LBA registered in the uncorrectable error log of the READ command LBA log of uncorrectable error while the READ command is executed the AWRE processing is applied 3 AWRE processing The following processings are performed when the LBA matches the one in the uncorrectable error log a Primary media check Creates an uncorrectable error pattern invalid LBA pattern in ...

Page 52: ...hrough the setting terminal the auto alternate block allocation processing specification is disabled Automatic alternate block allocation is made up to the following quantities during the execution of one command ARRE Twice AWRE Type 1 Eight times AWRE Type 2 Maximum number which can be processed within the recovery time limit If more than the above mentioned defective block is detected the altern...

Page 53: ... Requirements 4 3 Connection Requirements This chapter describes the environmental mounting power supply and connection requirements 4 1 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: ...Installation Requirements 4 2 C141 E235 The value marked with indicates the dimension between mounting holes on the bottom face Unit mm Figure 4 1 Dimensions ...

Page 55: ... in Figure 4 2 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 Figure 4 2 HDD orientations 4 1 3 Notes on mounting Damage Never remove any labels from the drive or deface them in any way Direction of gravity ...

Page 56: ...making a gap of 2 5 mm or more between the HDD and the frame of the system b As shown in Figure 4 3 the inward projection of the screw from the HDD frame wall at the corner must be 5 0 mm or less c Tightening torque of screw must be secured with 0 59N m 6kgf cm 12 d Impact caused by the electric screwdriver must be within the device specifications e Must be handled on an anti static mat 5 0 or les...

Page 57: ...m mounting Use all four mounting holes on the bottom face 5 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 Cool the PCA side especially with air circulation inside ...

Page 58: ...35 Table 4 1 Surface temperature check point No Measurement point Max temperature on package 1 DE surface 60 C 2 Read channel LSI 80 C 3 VCM SPM Driver 93 C 4 HDC 90 C 5 MPU 90 C 1 3 4 2 5 Figure 4 5 Surface temperature measurement points ...

Page 59: ...crew Surface P Cable connection Figure 4 6 Service clearance area 7 Environmental magnetic field Do not install the HDD in the vicinity of equipment giving off strong magnetic fields such as monitors televisions or loudspeakers 8 Leakage magnetic flux The HDD uses a high performance magnet to achieve a high speed seek Therefore a leak magnetic flux at surface of the HDD is large Mount the HDD so t...

Page 60: ...off sequence The order of the power on off sequence of 5 VDC and 12 VDC supplied to the HDD does not matter 4 Sequential starting of spindle motors After power is turned on to the HDD a large amount of current flows in the 12 VDC line when the spindle motor rotation starts Therefore if more than one HDD is used the spindle motors should be started sequentially using one of the following procedures...

Page 61: ...he 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 Figure 4 8 AC noise filter recommended 4 3 Connection Requirements 4 3 1 Connector Figure 4 9 shows the location of interface connector Interface connector CN1 including power supply Figure 4 9 Connector location ...

Page 62: ...wo 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 of the Fibre Channel Interface Specifications Figure 4 10 SCA2 type connector ...

Page 63: ...served 1 General notes a Do not give the drive shocks or vibrations exceeding the value defined in the specifications because it may cause critical damage to the drive Especially be careful when unpacking b Do not leave the drive in a dirty or contaminated environment c Since static discharge may damaged the CMOS semiconductors in the drive note the following after unpacking Use an antistatic mat ...

Page 64: ...ther parts where they will not get lost or damaged d Keep a record of all maintenance work for replacing 4 Packaging a Store the drive in an antistatic case Fcell b It is recommended to use the same cushions and packages as those at delivery If those at delivery cannot be used use a package with shock absorption so that the drive is free from direct shocks In this case fully protect the PCAs and i...

Page 65: ... Mated Start mode Connector pin CN1 10 pin CN1 09 pin Open Open The drive is not connected to the system The drive does not start the spindle motor Open GND The drive is connected to the system After recognizing the connection the drive starts the spindle motor upon receipt of a START STOP UNIT command GND Open The drive is connected to the system After recognizing the connection the drive starts ...

Page 66: ... the drive in the system cabinet with four mounting screws as follows The drive has 10 mounting holes both sides 3 2 bottom 4 Fix the drive by using four mounting holes of both sides of the drive or the bottom See Figure 4 4 Use mounting screws of which lengths inside the drive mounting frame are 5 0 mm or less when the screws are tightened see Figure 4 3 When mounting the drive be careful not to ...

Page 67: ...s have been specified so that the START STOP UNIT command is used to start rotating the motor a When power is turned on the Active LED goes on momentarily and the HDD starts the initial self diagnosis b If the initial self diagnosis detects a problem the HDD sends the Fault LED Out signal to the interface connector as specified by SFF8045 c The spindle motor does not rotate until the START STOP UN...

Page 68: ...igure 5 1 shows the recommended checking procedure for the mode that the motor starts when power is turned on Figure 5 2 shows for the mode that the motor starts by the START STOP command In these recommended checking procedures following items are checked Note Following steps a to d correspond to a to d in Figures 5 1 and 5 2 a Issue the TEST UNIT READY command and check that the HDD is connected...

Page 69: ...5 4 Checking Operation after Installation and Preparing the HDD for Use C141 E235 5 7 Motor starts when power is turned on d Figure 5 1 Checking the HDD connection A 60 ...

Page 70: ...Installation 5 8 C141 E235 Motor starts by START STOP command 1 Figure 5 2 Checking the HDD connection B Executing time about 60 seconds ...

Page 71: ...change the following data attributes at initialization Logical data block length Number of logical data blocks in the user space Alternate spare area size This section outlines the formatting at installation Refer to Subsection 4 1 4 MODE SELECT 15 4 1 5 MODE SELECT EXTENDED 55 of the Fibre Channel Interface Specifications for further details 1 MODE SELECT MODE SELECT EXTENDED command Specify the ...

Page 72: ...h initialization the value 00 is written into all bytes of all logical data blocks Only the position information of defect blocks detected with verification is registered in the G list The specifications are as follows a Specifying CDB Specify 0 for the FmtData bit and the CmpLst bit on CDB 000 for the Defect List Format field and data pattern written into the data block at initialization for the ...

Page 73: ... 5 MODE SELECT EXTENDED 55 of the Fibre Channel Interface Specifications for further details of the MODE SELECT and MODE SELECT EXTENDED commands and specifying the parameters 1 At factory shipment of the HDD the saving operation for the MODE SELECT parameter is not executed So if the user does not set parameters the HDD operates according to the default value of each parameter 2 The model select ...

Page 74: ...ed error Suppression of ECC error correction 1 enabled 1 enabled 1 enabled 1 enabled 0 disabled 0 Correction is enabled Retry count at read operation Retry count at write operation Recovery time limit 63 63 30 sec b Verify error recovery parameters page code 7 Parameter Default value ERR PER DTE DCR Immediate correction of recoverable error Report of recovered error Stop of command processing at s...

Page 75: ...command of the disk Refer to Chapter 3 Data Buffer Management of the Fibre Channel Interface Specifications for further details Parameter Default value Buffer full ratio 00 HEX Buffer empty ratio 00 HEX Notes 1 In a system without the disconnection function these parameters need not be specified 2 Determine the parameter values in consideration of the following performance factors of the system Ti...

Page 76: ... Prefetch operation after track switching during prefetching 1 enabled Number of blocks for which prefetch is suppressed X FFFF Minimum prefetch X 0000 Maximum prefetch X XXXX 1 cache segment Number of blocks with maximum prefetch restrictions X FFFF Number of segments X 08 Notes 1 When Read Ahead caching operations are disabled by the caching parameter these parameter settings have no meaning exc...

Page 77: ...sable Target Initiated Port Enable 0 The HDD does not have the Loop Port Enable primitive so it enters the loop port ALWLI Allow Login Without Loop Initialization 0 The HDD carries out confirmation of the address in the Loop Initialization process RHA Require Hard Address 0 In the Loop Initialization process try fixing a soft address DLM Disable Loop Master 0 The HDD itself is permitted to become ...

Page 78: ...indle motor to stop completely Then dismount the drive using the drive mounting dismounting mechanism etc of the system If the drive is dismounted while the spindle motor is running special care is required to avoid excessive vibration or shock to the drive It is recommended to stop the operation once the SCA connector breaks off contact and wait until the spindle motor stops about 30 seconds befo...

Page 79: ... The HDD has the following self diagnostic function This function checks the basic operations of the HDD Initial self diagnostics Online self diagnostics SEND DIAGNOSTIC command Table 6 1 lists the contents of the tests performed with the self diagnostics For a general check of the HDD including the operations of the host system and interface use a test program that runs on the host system see Sub...

Page 80: ...ower is turned on the HDD starts initial self diagnostics The initial self diagnostics checks the basic operations of the hardware functions If an error is detected in the initial self diagnostics the HDD sends the Fault LED Out signal to the interface connector In this status the HDD posts the CHECK CONDITION status to all I O operation requests other than the REQUEST SENSE command When the CHECK...

Page 81: ... the HDD execute self diagnostics by issuing the SEND DIAGNOSTIC command The initiator 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 When the UnitOfl bit on the CDB is set to 0 the HDD executes the hardware function test only once When UnitOfl bit is set to 1 the HDD execu...

Page 82: ... is turned off or re turned on the status can be cleared When this status is cleared the HDD executes the initial self diagnostics again see item 1 Refer to Subsection 4 4 1 SEND DIAGNOSTIC 1D of the Fibre Channel Interface Specifications for further details of the command specifications Data loss When the SEND DIAGNOSTIC command terminates with the CHECK CONDITION status the initiator must collec...

Page 83: ...data block in the internal test space the write read test can be executed with an arbitrary pattern for a disk drive in which user data is stored 6 2 Maintenance Information 6 2 1 Precautions Take the following precautions to prevent injury during maintenance and troubleshooting 1 To avoid injury do not touch the mechanical assembly during disk drive operation 2 Do not use solvents to clean the di...

Page 84: ...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 must be included a HDD model part number P N revision number serial number S N and date of manufacturing b Error status Date when the error occurred System configuration Environmental conditions temperature humidity...

Page 85: ...rive since repair requires special tools and environment This section explains the two maintenance levels 1 Field maintenance disk drive replacement This replacement is done at the user s site Replacement uses standard tools Replacement is usually done by the user retail dealer distributor or OEM engineer 2 Factory maintenance parts replacement This replacement can only be done by Fujitsu Replacem...

Page 86: ...vision 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 2 Changing revision number in the field To change the revision number because parts are replaced or other modification is applied in the field the new level is indicated by enclosin...

Page 87: ...plying the modification Figure 6 2 Indicating revision numbers 6 2 5 Tools and test equipment Disk drive troubleshooting and repair in the field require only standard hand tools No special tools or test equipment are required This manual does not describe the factory level tools and test equipment 6 2 6 Tests This disk drive can be tested in the following ways Initial seek operation check See Subs...

Page 88: ...st results OK Continue operation Check host system Table 6 2 Host system normal Analyze system related error Replaced or repair disk drive Disk drive normal Execute diagnostic test using a host computer or test equipment Test results OK Test using voltage or temperature stress Test results OK Normal Analyze disk drive error Table 6 3 Yes Yes No No Yes No Yes No Figure 6 3 Test flowchart ...

Page 89: ...circuit of the disk drive an interrupt occurs The interrupt is posted to the MCU on the PCA The MCU stops the currently processed command and causes the CHECK CONDITION status to post the error to the initiator When receiving the CHECK CONDITION status the initiator issues a REQUEST SENSE command to collect detailed information about the error The initiator then issues a REZERO UNIT command to ret...

Page 90: ...r cause is clear e g abnormal noise in disk enclosure or burning of the PCA troubleshooting is straightforward 6 4 2 Troubleshooting with disk drive replacement in the field At this level of maintenance we recommend replacing the disk drive as a unit If replacing the disk drive rectifies the fault return the removed disk drive to the factory for test and repair If the newly installed disk drive do...

Page 91: ...ncy noise over 20 MHz is less than 100 mVp p Drive selection address Check that the disk drive selection address is set correctly System cables Check that all system cables are connected correctly System diagnostic test When possible execute the system level diagnostic routine as explained in the host computer manual This gives a detailed report of a possible fault Check the AC voltage from the po...

Page 92: ...s used Table 6 3 Disk drive troubleshooting Item Recommended action Frequent or repeated seek errors Collect sense data and see Chapter 7 Replace the disk drive and check that the test method is correct If the error recurs it is likely that the disk drive is normal but the test method is incorrect Intermittent or nonfatal errors Replace the disk drive and check that the test method is correct If t...

Page 93: ...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 ...

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Page 95: ...ta When the HDD posts a CHECK CONDITION status or detects a fatal error in the loop the current command or queued command is cleared In such a case the HDD generates sense data about the command issuing initiator The initiator can read the sense data by issuing a REQUEST SENSE command Even if a transfer byte length that is shorter than the sense data length of the tested device is specified the co...

Page 96: ... data length 8 9 10 11 12 Additional sense code 13 Additional sense code qualifier 14 X 00 15 SKSV 16 Sense key specific information 17 18 0 0 0 Port 0 Link Rate 19 CDB operation code 20 47 Figure 7 1 Format of extended sense data MSB Detail information LSB LSB Command specific information Information Additional information Basic information MSB ...

Page 97: ... Additional sense code Additional sense code qualifier Definition 00 00 00 Operation was normal 3 0C 03 A write to a disk terminated abnormally 4 32 01 Failed to update the defect list due to a disk medium write error etc 40 xx An error occurred in power on self diagnosis C4 xx A drive error occurred 1 3 1x 1x xx xx A disk read error occurred A disk read error occurred E 1D 00 Data discrepancy fou...

Page 98: ... recorded in the media defect list In this case assign an alternate block to the error detected block using a REASSIGN BLOCKS command For an explanation of the REASSIGN BLOCKS command refer to Subsection 4 3 2 REASSIGN BLOCKS 07 of the Fibre Channel Interface Specifications If this error occurs in different blocks the PCA or the DE is faulty 7 2 4 Sense data 4 44 xx 5 2x xx B 44 xx B 47 xx B 49 00...

Page 99: ...C141 E235 A 1 APPENDIX A Connector Signal Allocation A 1 Interface FC SCA Connector Signal Allocation This appendix describes the connector signal allocation ...

Page 100: ...GND 26 07 Active LED out PortB_in 27 08 Spindle sync PortB_in 28 09 Start_1 Mated GND 29 10 Start_2 Mated PortA_out 30 11 EN bypass port B PortA_out 31 12 SEL 6 DSK_WR GND 32 13 SEL 5 DSK_RD PortB out 33 14 SEL 4 ENCL_ACK PortB out 34 15 SEL 3 D 3 GND 35 16 Fault LED out SEL 2 D 2 36 17 DEV_CTRL_CODE2 SEL 1 D 1 37 18 DEV_CTRL_CODE1 SEL 0 D 0 38 19 5V DEV_CTRL_CODE0 39 20 5V 5V charge 40 Note 1 Sig...

Page 101: ... The general name given to a device which is connected to the fibre channel loop input output device I O controller host adapter etc Initiator This is a device which initiates input and output operations on the fibre channel loop SCSI Small Computer System Interface The standardized input output interface of the American National Standards Institute ANSI Standard No ANSI X3 131 1986 Sense Data Whe...

Page 102: ...Glossary GL 2 C141 E235 Target TARG This is the FC device that executes the input output operations initiated by the initiator In this manual target is abbreviated TARG ...

Page 103: ... Descriptor DC Direct Current DCR Disable Correction DCRT Disable CeRtificaTion DE Disk Enclosure DEF DEFective block DevOfl Device Offline DPO Disable Page Out DPRY Disable PRimarY DSP Disable Saving Parameters DTDC Data Transfer Disconnect Control DTE Disable Transfer on Error E ECC Error Correction Code EER Enable Early Recovery EVPD Enable Vital Product Data F FC Fibre Channel FG Frame Ground ...

Page 104: ... 4 Maximum Likelihood R RC Read Continuous RCD Read Cache Disable REQ Request RH Relative Humidity RMB ReMovaBle RST ReSeT RSV ReSerVed S S N Serial Number SBd Synchronized Byte data area SBi Synchronized Byte identifier area SCSI Small Computer System Interface SCT SeCTor SEL SELect SelfTest Self Test SG Signal Ground SP Save Page SPR SPaRe block SR Servo SSEC Soft SECtor STPF SToP Format SURF SU...

Page 105: ...nection requirement 4 9 connector 4 9 continuous block processing 1 2 controller circuit 1 6 current waveform 4 8 cylinder configuration 3 1 D data field 3 7 data format 3 1 data security at power failure 2 7 data space 3 1 defect list 3 10 defect management 3 10 defective block slipping 1 4 definition of sense data 7 3 delivery 5 2 diagnosis 1 5 diagnostic 6 1 diagnostic test 6 11 diagnostics and...

Page 106: ... 5 MODE SELECT MODE SELECT EXTENDED command 5 9 model name and order number 2 1 motor start mode 5 3 mounting drive 5 4 mounting frame structure 4 4 mounting orientation 4 3 mounting procedure 5 4 mounting requirement 4 1 mounting screw 4 4 MTBF 2 5 MTTR 2 6 multi segment data buffer 1 3 N noise filter 4 9 note on handling drive 5 1 note on mounting 4 3 O online self diagnostic 6 3 operation check...

Page 107: ...tandard feature 1 2 start stop of spindle motor 1 4 START STOP UNIT command 5 5 storage 5 2 surface temperature check point 4 6 surface temperature measurement point 4 6 sync mark 3 7 system configuration 1 7 system space 3 3 system level field troubleshooting 6 13 T take following action if problem occur 5 5 test 6 9 test flowchart 6 10 test program 6 4 tool and test equipment 6 9 track format 3 ...

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Page 109: ... Good F Fair P Poor General appearance Technical level Organization Clarity Accuracy Illustration Glossary Acronyms Abbreviations Index Comments Suggestions 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 1...

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