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Diagnostics and Maintenance

6.4 Troubleshooting

6.4.1

Outline of troubleshooting procedures

This section explains the troubleshooting procedures for HDD errors.

Depending on the maintenance level, analyze the error to detect a possibly faulty part (HDD, or HDD
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 DE or burning of the PCBA), troubleshooting is straightforward.

6.4.2 Troubleshooting

with

HDD replacement in the field

At this level of maintenance, we recommend replacing the HDD as a unit. If replacing the HDD
rectifies the fault, return the removed HDD to Fujitsu, for test and repair. If the newly installed HDD
does not rectify the fault another part of the system is faulty.

Table 6.2 summarizes system-level field troubleshooting. Troubleshooting must be done in the field,
to find faulty part (HDD or system).

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Содержание MBA3073FD

Страница 1: ...C141 E264 01EN MBA3300FD MBA3147FD MBA3073FD HARD DISK DRIVES PRODUCT MANUAL ...

Страница 2: ...se of any product or 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 wit...

Страница 3: ...used by Electronic Information Products of the People s Republic of China This product is shipped as a component to manufacture the final products Therefore the packaging material code provided in GB18455 2001 is not marked on any packaging part of this product The contents of this manual may be revised without prior notice The contents of this manual shall not be disclosed in any way or reproduce...

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Страница 5: ...C141 E264 REVISION RECORD Edition Date published Revised contents 01 August 2007 Specification No C141 E264 EN ...

Страница 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...

Страница 7: ... system configuration 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 the addressing method and the defect management Chapter 4 Installation Requirements This chapter describes the basic physical and electrical requirements for installing the disk drives Chapter...

Страница 8: ...rrectly 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 indicates information that could help the user use the product more efficiently In the text the alert signal is centered followed below by the indented message A wider line space precedes and follows the alert message to show where the alert messa...

Страница 9: ...amage 1 When dismounting the HDD which is mounted on the system while power is supplied to it 1 Stop the spindle motor by a START STOP UNIT command It takes about 30 seconds for the spindle motor to stop completely 2 Then dismount the HDD using the HDD mounting dismounting mechanism etc of the system When removing the HDD avoid exposing it to shock or vibration Just in case stop dismounting once w...

Страница 10: ...mediately after turning off the power 73 Electrical shock Never touch the HDDs while power feeding 73 Damage Always ground yourself with a wrist strap connected to ground before handling ESD Electrostatics Discharge may cause the damage to the device Never use a conductive cleaner to clean the HDDs Never remove any labels from the HDD or deface them in any way Never remove the PCBA Never open the ...

Страница 11: ...lation Requirements 5 Installation 6 Diagnostics and Maintenance 7 Error Analysis FIBRE CHANNEL INTERFACE MANUAL 1 Fibre Channel Interface 2 Command Processing 3 Data Buffer Management 4 Command Specifications 5 Parameter Data Format 6 Sense Data and Error Recovery Methods 7 Disk Media Management C141 E264 5 ...

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Страница 13: ...ifications 19 2 1 Hardware Specifications 19 2 1 1 Model name and order number 19 2 1 2 Function specifications 20 2 1 3 Environmental specifications 23 2 1 4 Error rate 24 2 1 5 Reliability 24 CHAPTER 3 Data Format 27 3 1 Data Space 27 3 1 1 Cylinder configuration 27 3 1 2 Alternate spare area 30 3 1 3 Track format 31 3 1 4 Sector format 32 3 1 5 Format capacity 34 3 2 Logical Data Block Addressi...

Страница 14: ...nts 48 4 3 Connection Requirements 50 4 3 1 Connector location 50 4 3 2 Interface connector 51 CHAPTER 5 Installation 53 5 1 Notes on Handling HDDs 53 5 2 Setting 55 5 2 1 Loop ID setting 55 5 2 2 Mode settings 55 5 3 Mounting HDDs 56 5 3 1 Mounting procedures 56 5 4 Checking Operation after Installation and Preparing the HDDs for Use 57 5 4 1 Checking initial operation 57 5 4 2 Checking connectio...

Страница 15: ...e of troubleshooting procedures 78 6 4 2 Troubleshooting with HDD replacement in the field 78 6 4 3 Troubleshooting at the repair site 80 6 4 4 Troubleshooting with parts replacement in the factory 81 6 4 5 Finding possibly faulty parts 81 6 5 Packaging 81 6 5 1 Single HDD packaging 81 6 5 2 Multi box packaging 82 CHAPTER 7 Error Analysis 85 7 1 Sense Data Collection 85 7 1 1 Sense data 85 7 1 2 S...

Страница 16: ...Contents 10 C141 E264 7 2 4 Sense data 5 2x xx B 47 xx B 4B xx and B 4E 00 interface error 88 Glossary 89 Acronyms and Abbreviations 91 Index 93 ...

Страница 17: ...igure 4 1 Dimensions 42 Figure 4 2 HDD orientations 43 Figure 4 3 Mounting frame structure example 44 Figure 4 4 Limitation of side mounting 45 Figure 4 5 Surface temperature measurement points 46 Figure 4 6 Current waveform Spin up 48 Figure 4 7 Current waveform Max seek 49 Figure 4 8 AC noise filter 50 Figure 4 9 Connector location 50 Figure 4 10 SCA2 type connector 51 Figure 5 1 Checking the HD...

Страница 18: ... 23 Table 3 1 Format capacity 34 Table 4 1 Surface temperature check point and maximum temperature 46 Table 4 2 Interface FC SCA2 connector signal allocation CN1 52 Table 5 1 Motor start mode 55 Table 6 1 Self diagnostic functions 69 Table 6 2 System level field troubleshooting 79 Table 6 3 HDD troubleshooting 80 Table 7 1 Definition of sense data 87 ...

Страница 19: ...es of Fibre Channel technology and the powerful command set the HDDs facilitate creation of high performance and highly reliable disk subsystems with large storage capacities 1 1 Standard Features 1 Compactness In a compact enclosure having the 3 5 inch hard disk drive form factor the HDD contains an FC AL controller which supports the Arbitrated Loop technology FC AL a Fibre Channel technology de...

Страница 20: ...d 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 The Write Cache feature is supported When this feature is enabled the status report is issued without waiting for com...

Страница 21: ...nits 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 Error rate increase 1 The HDD format at factory shipment is generally 512 bytes 2 The recoverable Error 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 ref...

Страница 22: ...tion for periodically implementing a full scan of the disk 20 Low power consumption By using highly integrated LSI components the power consumption of the HDDs is very low and this enables the unit to be used in wide range of environmental conditions 21 Low acoustic noise The acoustic noise level is low approx 3 6 Bels at Idle This makes it ideal for office use 22 Microcode downloading The HDDs im...

Страница 23: ...Actuator The actuator which uses a rotary voice coil motor VCM consumes little power and generates little heat The heads at the end of the actuator arm are controlled and positioned via feedback servo loop The heads are positioned on the ramp when the power is off or the spindle motor is stopped 5 Read write circuit The read write circuit utilizes a read channel mounted with a head IC that support...

Страница 24: ...e Loop port NL_port The HDDs have two ports one of which is used for connections to an FC AL A maximum of 126 NL_ports can be connected to a single port 1 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 link...

Страница 25: ... 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 MBA3300FD CA06776 B400 SCA2 FC AL 300 GB MBA3147FD CA06776 B200 SCA2 FC AL 147 GB MBA3073FD CA06776 B100 SCA2 FC AL 73 5 GB One gigabyte GB one billion bytes accessible capacity will be less and actual capacity depends on ...

Страница 26: ...e 3 4 ms 3 9 ms Seek time 3 Read Write Full stroke 8 0 ms 9 0 ms Number of rotations 15 000 0 2 min 1 rpm Average latency time 2 0 ms Start stop time 4 Ready up time Stop time 30 s typ 60 s max 30 s typ External dimensions Height Width Length 26 1 mm max 101 6 mm 0 25mm 147 0 mm max Weight 0 8 kg max Power consumption 5 13 4 W typ Internal 188 MB s standard format most outer Data transfer rate 6 E...

Страница 27: ...ctual capacity depends on the operating environment and formatting 3 The seek time is as follows 4 The start time is the time from power on or start command to when the HDDs are ready and the stop time is the time for disks to completely stop from power off or stop command 5 This value indicates in idle mode Power supply at nominal voltage 1 25 C ambient 6 The maximum data transfer rate may be res...

Страница 28: ...he eye mask is as follows Absolute amplitude V Normalized time U1 Parameter Units 1 Gbps 2 Gbps 4 Gbps B mV 1000 1000 800 A mV 300 300 155 X1 UI 0 165 0 215 0 31 X2 UI 0 355 0 405 0 5 9 1 MB 1 048 576 bytes 22 C141 E264 ...

Страница 29: ...erating 4 3 1 mm 5 to 20Hz 49 m s2 5G 20 to 300Hz or less Vibration 2 Transport packaged 3 1 mm 5 to 20Hz 49 m s2 5G 20 to 300Hz or less Operating 637 4 m s2 65G 2ms Non operating 2451 7 m s2 250G 2ms Shock 2 Transport packaged 2451 7 m s2 250G 2ms Operating 305 to 3 048 m 1 000 to 10 000 feet Altitude Non operating 305 to 12 192m 1 000 to 40 000 feet Regulation 5 Ready average 0 88 A 0 60 A 0 45 ...

Страница 30: ...r rate Errors which cannot be recovered within 63 retries and ECC correction should not exceed 10 per 1016 bits read 2 Positioning error rate Positioning errors which can be recovered by one retry should be 10 or less per 108 seeks 2 1 5 Reliability 1 Mean Time Between Failures MTBF MTBF of the HDDs during their life time is 1 400 000 hours operating 24 hours day 7 days week average DE surface tem...

Страница 31: ...ure from 46ºC to 50ºC 4 years DE surface temperature from 51ºC to 55ºC 3 5 years DE surface temperature from 56ºC to 60ºC 3 years DE surface temperature more than 60ºC or less than 5ºC No guarantee Keep the DE surface temperature from 5 C to 60 C Even if the HDDs are used intermittently the longest service life is 5 years The maximum storage period without turning the power on is six months Note T...

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Страница 33: ...ck 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 HDDs 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 HDDs allocate cylinders to the user space internal test ...

Страница 34: ...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 HDDs intend to increase the storage capacity by dividing all cylinders into several zones and changing a recording density of each zone 28 C141 E264 ...

Страница 35: ...lways 10 cylinders are located at the end of the last 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 512Byte The internal test space consists of 8 cylinders and outer most cylinde...

Страница 36: ... are explained on Subsection 3 1 3 Size can be specified by the MODE SELECT command The number of spare sectors per cell is fixed at 300 This number cannot be changed by users SPR299 SPR300 300 Cell Note This HDD manages alternate spare areas for each cell which is a set of cylinders One cell consists of 40 cylinders Figure 3 2 Spare area in cell The alternate cylinder is used for replacement acti...

Страница 37: ...ength Servo frame Figure 3 4 Track 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 log...

Страница 38: ... individual sectors The HDDs automatically determine appropriate values for the track skew factor and the head skew factor according to the specified logical data block length 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 examples SCT PAD SM1 PLO Sync G1 SCT G2 DATA1 SM2 BCRC DATA2 ECC SCT PAD S...

Страница 39: ...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 Single burst errors with lengths of up to 32 bits for each logical block can be detected 6 ECC This is the 400 bits code that allows detection and correction of errors in the data field which is capab...

Страница 40: ...capacity logical data block length number of logical data blocks The logical data block 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 Table 3 1 Format capacity Model Data block length User blocks Format capacity MBA3300FD 585 937 500 300GB MBA3147FD 287 277 ...

Страница 41: ...cording 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 data block is a...

Страница 42: ...block sectors in defective sector units by means of the defect management method inside the HDDs 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 Both of the following are applicable to the alternate block allocation Sector sli...

Страница 43: ...atment Figure 3 7 is examples of the alternate block allocation during the FORMAT UNIT command execution n represents a logical data block number Defective sector Unused spare sector 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 Uncorrec...

Страница 44: ...ASSIGN 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 alternate block allocation by the REASSIGN BLOCKS command Unused spare sector Example Reassign Block 16 Defective sec...

Страница 45: ...ve 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 the positi...

Страница 46: ...ting 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 alternate block assi...

Страница 47: ...y Requirements 4 3 Connection Requirements This chapter describes the environmental mounting power supply and connection requirements 4 1 Mounting Requirements 4 1 1 Dimensions Figures 4 1 show the dimensions of the HDDs and the location of the mounting screw holes C141 E264 41 ...

Страница 48: ...Installation Requirements Unit mm is a dimention between the screw holes for the bottom mouting Figure 4 1 Dimensions 42 C141 E264 ...

Страница 49: ...he HDD can be installed flat on any of its six sides Inclination from a vertical or horizontal plane should not exceed 5 a Horizontal 1 b Horizontal 2 c Vertical 1 d Vertical 2 e Upright mounting 1 f Upright mounting 2 Direction of gravity Figure 4 2 HDD orientations C141 E264 43 ...

Страница 50: ...ure or the like Mount the HDDs with making a gap of 2 5 mm or more between the HDDs 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 4 5 mm 0 8 mm c Tightening torque of screw must be secured with 0 59 N m 6 kgf cm 12 d Impact caused by the electric screwdriver must be within the HDD specifications e Must be handl...

Страница 51: ...th 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 Figure 4 4 Limitation of side mounting 4 Limitation of bottom mounting Use all 4 mounting holes on the bottom face C141 E264 45 ...

Страница 52: ...t by measuring the surface temperature of specific ICs and the DE These measurement results must satisfy the temperature condition listed in Table 4 1 Keep the DE surface temperature at 50 C or below to meet the condition for assuring an MTBF of 1 400 000 hours An air flow of 1 0 m s or more is required at ambient temperature 30 C Table 4 1 Surface temperature check point and maximum temperature N...

Страница 53: ...like a speaker to avoid the influence of the external magnetic field 7 Leak magnetic flux The HDDs use a high performance magnet to achieve a high speed seek Therefore a leak magnetic flux at surface of the HDDs are large Mount the HDDs so that the leak magnetic flux does not affect to near equipment C141 E264 47 ...

Страница 54: ...other requirements see Items 4 and 5 below 2 Current waveform reference Figure 4 6 shows the spin up current waveform of 5V DC and 12V DC 5VDC MBA3300FD MBA3147FD MBA3073FD Current 500mA div Current 500mA div Current 500mA div Time 2 sec div Time 2 sec div Time 2 sec div 12VDC MBA3300FD MBA3147FD MBA3073FD Current 500mA div Current 500mA div Current 500mA div Time 2 sec div Time 2 sec div Time 2 s...

Страница 55: ...s does not matter 4 Sequential starting of spindle motors After power is turned on to the HDDs a large amount of current flows in the 12V DC 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 to prevent overload of the power supply unit Regarding how to set a spindle motor start ...

Страница 56: ...ion 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 4 3 Connection Requirements 4 3 1 Connector location Figure 4 9 shows a location of the interface connector Interface connector CN1 power lines included Figure 4 9 Connector location 50 C141 E264 ...

Страница 57: ...ctor 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 Table 4 2 lists the signal allocation of the connector on the HDDs Figure 4 10 SCA2 type connector C141 E264 51 ...

Страница 58: ...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 Signal names in the right co...

Страница 59: ...Do not give the HDD shocks or vibrations exceeding the value defined in the specifications because it may cause critical damage to the HDD Especially be careful when unpacking b Do not leave the HDD in a dirty or contaminated environment c Since static discharge may destroy the CMOS semiconductors in the HDD note the following after unpacking Use an antistatic mat and body grounding when handling ...

Страница 60: ... of all maintenance work for replacing 4 Packaging a Store the HDD in the antistatic case Fcell b It is recommended to use the same cushions and packages as those at delivery For details see Section 6 5 If those at delivery cannot be used use a package with shock absorption so that the HDD is free from direct shocks In this case fully protect the PCBA and interface connector so that they are not d...

Страница 61: ...d Start mode Connector pin CN1 10 pin CN1 09 pin Open Open The HDD is not connected to the system The HDD does not start the spindle motor Open GND The HDD is connected to the system After recognizing the connection the HDD starts the spindle motor upon receipt of a START STOP UNIT command GND Open The HDD is connected to the system After recognizing the connection the HDD starts the spindle motor...

Страница 62: ...s both sides 3 2 bottom 4 Fix the HDD by using four mounting holes of both sides of the HDD or the bottom Use mounting screws of which lengths inside the HDD are 4 5 mm 0 8 mm when the screws are tightened see Figure 4 3 When mounting the HDD be careful not to damage parts on the PCBA 2 Confirm the DE is not touching the frame on the system side excluding the screw installing part after tightening...

Страница 63: ...he initiator 2 Initial operation if the settings have been specified so that the START STOP UNIT command is used to start rotating the motor a When power is turned on the 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...

Страница 64: ...s 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 correctly to ...

Страница 65: ...ng Operation after Installation and Preparing the HDDs for Use Motor starts when power is turned on d Including execution time of initial self diagnostics 60 Figure 5 1 Checking the HDD connection A C141 E264 59 ...

Страница 66: ...Installation Motor starts by START STOP command 1 Including execution time of initial self diagnostics Executing time about 60 seconds Figure 5 2 Checking the HDD connection B 60 C141 E264 ...

Страница 67: ... of the disk must be formatted initialized according to the procedures below The user can change the following data attributes at initialization Logical data block length Number of logical data blocks in the user space 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 MANUAL for further details...

Страница 68: ...ith the initialization data pattern field 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 initializat...

Страница 69: ...RFACE MANUAL for further details of the MODE SELECT and MODE SELECT EXTENDED commands and specifying the parameters 1 At factory shipment of the HDDs the saving operation for the MODE SELECT parameter is not executed So if the user does not set parameters the HDDs operates according to the default value of each parameter 2 The MODE SELECT parameter is not saved for each initiator ID but as the com...

Страница 70: ...ession 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 successful erro...

Страница 71: ...ching operations 0 enabled WCE Write Cache Enable 1 enabled MF Specifying the multipliers of MINIMUM PRE FETCH and MAXIMUM PRE FETCH parameters 0 Specifying absolute value DISC Prefetch operation after track switching during prefetching 1 enabled DISABLE PRE FETCH TRANSFER LENGTH X FFFF MINIMUM PRE FETCH X 0000 MAXIMUM PRE FETCH X 0000 MAXIMUM PRE FETCH CEILING X FFFF NUMBER OF CACHE SEGMENTS X 08...

Страница 72: ... 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 the Loop Master DDIS Disable DIScovery 0 Before the initiator ...

Страница 73: ... is supplied to it 1 Stop the spindle motor by a START STOP UNIT command It takes about 30 seconds for the spindle motor to stop completely 2 Then dismount the HDD using the HDD mounting dismounting mechanism etc of the system When removing the HDD avoid exposing it to shock or vibration Just in case stop dismounting once when interface connector breaks off contact and wait until the spindle motor...

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Страница 75: ...ng self diagnostic function This function checks the basic operations of the HDDs 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 HDDs including the operations of the host system and interface use a test program that runs on the host system see Subsection 6 1 2 Table 6 ...

Страница 76: ...atus is posted Sense data contains detailed information on the error detected by the initial self diagnostics When sense data has been collected after the CHECK CONDITION status has been posted the CHECK CONDITION status continues and the HDDs continues sending the Fault LED Out signal to the interface connector This status can be cleared only when the HDDs are turned off and turned on again When ...

Страница 77: ...ion of self diagnostics 0 The self diagnostics continues when the error is recovered The self diagnostics terminates normally so far as the unrecoverable error is not detected 1 The self diagnostics continues when the error is recovered If the unrecoverable error is not detected the consecutive tests are executed till last test but the self diagnostics terminates with error The error information i...

Страница 78: ...and interface operations in a status similar to the normal operation status a test program that runs on the host system must be used The structure and functions of the test program depend on the user system requirements Generally it is recommended to provide a general input output test program that includes devices connected to the input output devices on other I O ports Including the following te...

Страница 79: ...jury never touch the HDD while it is hot The DE and LSI become hot during operation and remain hot immediately after turning off the power Electrical shock Never touch the HDDs while power feeding Take the following precautions to prevent HDD damage during maintenance and troubleshooting Damage Always ground yourself with a wrist strap connected to ground before handling ESD Electrostatics Dischar...

Страница 80: ...rvice system and repair facility for the HDD Contact Fujitsu representative to submit information for replacing or repairing the HDD Generally the following information must be included a 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 and voltage c Error...

Страница 81: ...l dealer distributor or OEM engineer 2 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 Replacement uses factory tools and test equipment 6 2 4 Tools and test equipment HDD troubleshooting and repair in the field require only standard ha...

Страница 82: ...ation test using a host computer or test equipment Yes No Yes No Start self test by turning the power on Test results OK Continue operation Check host system Table 6 2 Host system normal Analyze system related error Replaced or repair HDD HDD normal Execute diagnostic test using a host computer or test equipment Test results OK Test using voltage or temperature stress Test results OK Normal Analyz...

Страница 83: ...t mechanical play and problems related to other systems If an operation error is detected by the error detection circuit of the HDD an interrupt occurs The interrupt is posted to the MPU on the PCBA The MPU 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 initiaor collects detailed informati...

Страница 84: ... cause is clear e g abnormal noise in DE or burning of the PCBA troubleshooting is straightforward 6 4 2 Troubleshooting with HDD replacement in the field At this level of maintenance we recommend replacing the HDD as a unit If replacing the HDD rectifies the fault return the removed HDD to Fujitsu for test and repair If the newly installed HDD does not rectify the fault another part of the system...

Страница 85: ...ithin 250 mV Make sure the high frequency noise over 20 MHz is less than 100 mVp p 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 Intermittent or nonfatal errors Check the AC voltage from the power supply Chec...

Страница 86: ...ons where the HDD is used Table 6 3 HDD troubleshooting Item Recommended action Frequent or repeated seek errors Collect sense data and see Chapter 7 Replace the HDD and check that the test method is correct If the error recurs it is likely that the HDD is normal but the test method is incorrect Intermittent or nonfatal errors Replace the HDD and check that the test method is correct If the error ...

Страница 87: ... possibly faulty parts at the factory level 6 5 Packaging When the HDD is returned to Fujitsu the following methods are recommended 6 5 1 Single HDD packaging Figure 6 2 Single HDD packaging 1 Put the HDD into FCELL At this time the connector of the HDD is directed to the hinge side of FCELL The PCBA is put in the side with the material mark of FCELL 2 Push from two corners of FCELL on the hinge s...

Страница 88: ...h conductivity bag into the cardboard box 5 Put the desiccant 10g into the conductivity bag 6 Seal the conductivity bag with the packaging tape then close the cardboard box 6 5 2 Multi box packaging upper lower Figure 6 3 Multi box packaging 1 Put the conductivity bag into the milti box in addition put the cushion lower into the bag 82 C141 E264 ...

Страница 89: ... starting from the slot with the smallest number in Figure 6 4 Then place the empty FCELL in the empty slot 3 Hold the HDD with the cushion upper 4 Put the desiccant 100g into the conductivity bag 5 Put the long desiccant between the cushion upper 6 Seal the conductivity bag with the packaging tape 7 Close the cardboard box with the packaging tape Attach the tape in H figure at the tape Figure 6 4...

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Страница 91: ...ponse frame of the command where an error occurred Auto Sense function This HDD is equipped with sense data with a byte length of 48 Accordingly Fujitsu recommends collecting all 48 byte sense data when the host unit collects sense data A sense key additional sense code and additional sense code qualifier taken from various sense data are repeated Also in this chapter troubleshooting is performed ...

Страница 92: ...nse 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 MSB Detail information Additional information Basic information MSB Command specific information Information LSB LSB ILI Incorrect Length Indicator MSB Most Significant Byte LSB Least Significant Byte SKSV Sense Key Specific Valid Figure 7 1 Sense data format 86 C141 E264 ...

Страница 93: ...nse code qualifier Definition 3 0C 03 A write to a disk terminated abnormally 4 32 01 Failed to update the defect list due to unrecoverable error during write verify error after write 40 xx An error occurred in power on self diagnosis C4 xx An HDD error occurred 1 3 1x 1x xx xx A disk read error occurred A disk read error occurred E 1D 00 Data discrepancy found by VERIFY command byte check 5 2x xx...

Страница 94: ...equently in a specific block of a disk there is disk damage that was not 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 MANUAL If this error occurs in different blocks a PCBA or DE is faul...

Страница 95: ...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 When several items of error information are included in a command s completion status this is information generated by the target for reporting detailed information on that status Sense Key This i...

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Страница 97: ...Channel FIFO First In First Out FmtData Format Data G Gpbs Gigabits per second G list Grown defect list H HDC Hard Disk Controller HDD Hard Disk Drive I ID IDentifier I O Input Output L LED Light Emitting Diode LSI Large Scale Integration circuit M MEEPRML Modified Enhanced Extended Partial Response Maximum Likelihood MPU MicroProcessor Unit MR Magnetro Resistive MTBF Mean Time Between Failure MTT...

Страница 98: ... Number SCSI Small Computer System Interface SCT SeCTor SEL SELect SelfTest Self Test SP Save Page SPM SPindle Motor T TB Transfer Block TPI Tracks Per Inch U UnitOfl Unit Offline V VCM Voice Coil Motor W WCE Write Cache Enable 92 C141 E264 ...

Страница 99: ...quirement 50 connector location 50 continuous block processing 14 controller circuit 17 current 48 current waveform 48 49 cylinder configuration 27 D data field 33 data format 27 data security at power failure 25 data space 27 defect list 36 defect management 36 defective block slipping 15 delivery 54 diagnosis 16 diagnostic 69 diagnostic test 77 dimension 41 disk 17 dismounting HDDs 67 dual port ...

Страница 100: ...g procedure 56 mounting requirement 41 mounting screw 44 MTBF 24 MTTR 25 multi segment data buffer 14 N noise filter 50 note on handling HDDs 53 note on mounting 44 O online self diagnostic 71 operation check 77 operation test 77 order number 19 outline of troubleshooting procedure 78 P packaging 54 81 PAD 33 page code 61 64 part replacement 75 part that can be replaced in field 74 physical sector...

Страница 101: ... configuration 18 system space 29 T take following action if problem occur 57 test 76 test program 72 tool and test equipment 75 track format 31 track skew 31 troubleshooting 78 troubleshooting at repair site 80 troubleshooting with HDD replacement in field 78 troubleshooting with part replacement in factory 81 U unpackaging 54 user space 29 V verify error recovery parameter 64 W write read test 7...

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Страница 103: ...eneral 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 144 0051 JAPAN Fax 81 ...

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