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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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Summary of Contents for MBC2036RC SERIES

Page 1: ...C141 E266 01EN MBC2073RC MBC2036RC HARD DISK DRIVES PRODUCT MANUAL ...

Page 2: ...ntal 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 product is designed and manufactured for use in standard applications such as office work personal devices and...

Page 3: ...REVISION RECORD Edition Date published Revised contents 01 August 2007 Specification No C141 E266 EN C141 E266 ...

Page 4: ...T10 1601D Rev 10 Serial Attached SCSI Model 1 1 SAS 1 1 SFF 8201 Rev 2 4 Form Factor of 2 5 Disk Drives SFF 8223 Rev 2 5 2 5 Drive Form Factor with Serial Connector 1 ANSI American National Standard Institute In case of conflict between this manual and any referenced document this manual takes precedence Compliance with Administration on the Control of Pollution Caused by Electronic Information Pr...

Page 5: ...system configuration Chapter 2 Specifications This chapter gives detailed specifications of the disk drives and the 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 5 ...

Page 6: ...ure 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 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...

Page 7: ... 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 15 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 S...

Page 8: ...emain hot immediately after turning off the power 67 Electrical shock Never touch the HDDs while power feeding 67 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 Nev...

Page 9: ...t 4 Installation Requirements 5 Installation 6 Diagnostics and Maintenance 7 Error Analysis SAS INTERFACE MANUAL 1 SAS Interface 2 Command Processing 3 Data Buffer Management 4 Command Specifications 5 Parameter Data Formats 6 Sense Data and Error Recovery Methods 7 Disk Media Management C141 E266 5 ...

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Page 11: ...ronmental specifications 24 2 1 4 Error rate 25 2 1 5 Reliability 25 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 Addressing 34 3 3 Defect Management 36 3 3 1 Defect list 36 3 3 2 Alternate block allocation 36 CHAPTER 4 Installation Requirements 4...

Page 12: ... 2 1 Port Address 55 5 3 Mounting HDDs 55 5 3 1 Mounting procedures 55 5 4 Checking Operation after Installation and Preparing the HDDs for Use 56 5 4 1 Checking initial operation 56 5 4 2 Formatting 57 5 4 3 Setting parameters 59 5 5 Dismounting HDDs 62 CHAPTER 6 Diagnostics and Maintenance 63 6 1 Diagnostics 63 6 1 1 Self diagnostics 63 6 1 2 Test programs 66 6 2 Maintenance 67 6 2 1 Precautions...

Page 13: ...factory 75 6 4 5 Finding possibly faulty parts 75 6 5 Packaging 76 6 5 1 Bag packaging 76 6 5 2 Box packaging 77 CHAPTER 7 Error Analysis 79 7 1 Sense Data Collection 79 7 1 1 Sense data 79 7 1 2 Sense data format 79 7 2 Sense Data Analysis 81 7 2 1 Error information indicated with sense data 81 7 2 2 Sense data 3 0C 03 4 32 01 4 40 xx 4 C4 xx and 4 44 xx 82 7 2 3 Sense data 1 1x xx 3 1x xx and E ...

Page 14: ... 3 8 Alternate block allocation by REASSIGN BLOCKS command 38 Figure 4 1 Dimensions 41 Figure 4 2 HDD orientations 42 Figure 4 3 Mounting frame structure example 43 Figure 4 4 Vent hole location 44 Figure 4 5 Surface temperature measurement points 45 Figure 4 6 Current waveform Spin up 46 Figure 4 7 Current waveform Max seek 47 Figure 4 8 AC noise filter recommended 48 Figure 4 9 Connector locatio...

Page 15: ...rmat capacity 34 Table 4 1 Surface temperature check point and maximum temperature 45 Table 4 2 Interface connector SAS plug signal allocation CN1 50 Table 4 3 Recommended connectors 51 Table 6 1 Self diagnostic functions 63 Table 6 2 System level field troubleshooting 73 Table 6 3 HDD troubleshooting 74 Table 7 1 Definition of sense data 81 C141 E266 11 ...

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Page 17: ...ong distance transmission capabilities of SAS 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 The HDDs are a compact enclosure which complies with the 2 5 inch hard disk drive form factor 2 Environmental Protection The HDDs comply with the Restriction of th...

Page 18: ...cks or cylinder 7 Multi segment data buffer The data buffer is 16M bytes Data is transferred between SAS port and disk media through this data buffer This feature provides the suitable usage environment for users 8 Cache feature After executing the READ command the HDDs read automatically and store prefetches the subsequent data blocks into the data buffer Read ahead caching The high speed sequent...

Page 19: ...ck is detected during read or write the HDDs can automatically reassign its alternate data block 13 Programmable data block length Data can be accessed in fixed block length units The data block length is programmable and can be specified at initializing with a multiple of four within the range of 512 to 528 bytes Error rate increase 1 The HDD format at factory shipment is generally 512 bytes 2 Th...

Page 20: ...y which checks internal controller functions and HDD operations Also for early detection of and recovery from the errors on the disk the HDD has a function for periodically implementing a full scan of the disk 19 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 condition...

Page 21: ...d 4 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 sup...

Page 22: ...rt Primary Port SATA style cable receptacle connector SAS Internal connection receptacle connector SAS Plug Connector SAS Device SAS Target Device SAS Initiator Device or SAS Expander Device Figure 1 1 Example of SAS system configuration Dual port internal cabled environment Power LED SAS Initlator Device or SAS Expander Device Secondary port Primary Port SAS Plug Connector SAS Device SAS Backplan...

Page 23: ...ress SAS addresses are in the Name Address Authority NAA IEEE Registered format defined by SCSI Primary Command 2 SPC 2 An SAS address consists of 8 bytes as a unique value set for each device The initiator can implement an I O operation on an HDD by using the corresponding SAS address stored by the HDDs C141 E266 19 ...

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Page 25: ... 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 MBC2073RC CA06771 B200 SAS 73 5 GB MBC2036RC CA06771 B100 SAS 36 7 GB One gigabyte GB one billion bytes accessible capacity will be less and actual capacity depends on the operating environ...

Page 26: ...eight 15 0 mm max Width 69 85 mm 0 25mm External dimensions Length 100 45 mm max Weight 0 22 kg max Power consumption 5 5 2 W typ Internal 150 MB s standard fromat most outer Data transfer rate 6 External 1 5 Gbps 3 0 Gbps Logical data block length 512 to 528 byte fixed length 7 Related standards SAS T10 1562D Rev 05 SAS1 1 T10 1601D Rev 07 SAM 3 T10 1561D Rev 14 SAM 2 T10 1157D Rev 24 SPC 2 T10 1...

Page 27: ...r 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 restricted to the response speed of initiator and by transmission characteristics 1 MB s 1 000 000 bytes s 7 Refer to 1 1 13 8 The eye mask is as follows Parameter Unit 1 5Gbps 3 0Gbps 2 Z2 mVp p 1 600 1 600 2 Z1 mVp p 325 275 X1 UI 0 275 0 275 X2 UI 0 5 ...

Page 28: ...n 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 980 m s2 100G 1 ms duration Non operating 3 920 m s2 400G 1 ms duration Shock 2 Transport packaged 3 920 m s2 400G 1 ms duration Operating 305 to 3 048 m 1 000 to 10 000 feet Altitude Non operating 305 to 12 192 m 1 000 to 40 000 feet Regulation 5 Rea...

Page 29: ...le error 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 its life time is 1 400 000 hours operating 24 hours day 7 days week average DE surfac...

Page 30: ...mperature from 46 C to 50 C 4 years DE surface temperature from 51 C to 55 C 3 5 years DE surface temperature from 56 C to 60 C 3 years DE surface temperature more than 60 C or No guarantee less than 5 C 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 ...

Page 31: ...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 ...

Page 32: ...rs for each cell Zone0 Zone1 Zone X 1 Note Spare sectors on the last track in each cell 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 HDDs intend to increase the storage capacity by dividing all cylinders into several zones and c...

Page 33: ... Always 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 cylin...

Page 34: ...specified by the MODE SELECT command The number of spare sectors per cell is fixed at 300 This number cannot be changed by users Zone 0 Cyl 0 USRCYL0 1 p USRCYL0 p ALTCELL Change for cell 10 Cyl Zone n USRCYL User area ALTCYL Alternate area 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 alter...

Page 35: ...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...

Page 36: ...r individual sectors The HDD 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...

Page 37: ...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...

Page 38: ...mand Format 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 MBC2073RC 143 638 992 73 5 GB MBC2...

Page 39: ...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...

Page 40: ...data 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 Secto...

Page 41: ...nder are allocated to the defective sectors that follow the sector by means of alternate sector treatment 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 ...

Page 42: ...e 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 alternate block al...

Page 43: ...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...

Page 44: ...rough 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 alterna...

Page 45: ...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 Unit mm Figure 4 1 Dimensions C141 E266 41 ...

Page 46: ...nting orientations As shown in Figure 4 2 the HDD can be installed flat on any of its six sides Inclination from a vertical or horizontal plane should not exceed 5 a b c d e f Direction of gravity Figure 4 2 HDD orientations 42 C141 E266 ...

Page 47: ...ever touches any components on the PCBA of the HDDs For example as shown in Figure 4 3 mount the HDDs with a gap of 2 5 mm or more from the frame b As shown in Figure 4 3 the inward projection of the screw from the HDD frame wall at the corner must be 2 5 mm 0 5 mm c Tightening torque of screw must be secured with 0 49 N m 5 kgf cm 12 d The frame must not distort the HDDs e The impact by an electr...

Page 48: ... of side mounting Use all 4 mounting holds on the both sides 4 Limitation of bottom mounting Use all 4 mounting holds on the bottom face 5 Vent hole Never cover the vent hole as shown in Figure 4 4 Figure 4 4 Vent hole location 44 C141 E266 ...

Page 49: ...ed 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 0 5m s or more is required at ambient temperature 30 C Table 4 1 Surface temperature check point and maximum temperature No Measurement point Maximum temperature 1 DE Surface 60 C 2 Read channel LSI 82 C 3 VCM SPM Driver 93 C 4 HDC 97 C 5 MPU 94 C 2 4 5 3 1 ...

Page 50: ...he requirement given in Subsection 2 1 3 For other requirements see Items 4 below 2 Current waveform reference Figure 4 6 shows the spin up current waveform of 5V DC and 12V DC Time 2 sec div Time 2 sec div Time 2 sec div Time 2 sec div Current 500mA div Current 500mA div 12VDC 5VDC MBC2073RC MBC2073RC MBC2036 MBC2036RC Current 500mA div Current 500mA div RC Figure 4 6 Current waveform Spin up 46 ...

Page 51: ...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 HDDs are the spindle motors should be started sequentially using one of the following procedures to prevent overload of the power supply unit a Control the sending of the NOTIFY ENABLE SPINUP primiti...

Page 52: ... 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 location Figure 4 9 shows a location of the interface connector Interface connector CN1 power lines included Figure 4 9 Connector location 48 C141 E266 ...

Page 53: ...or 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 HDDs S1 S7 P1 P15 S14 S8 Top view Bottom view Top view Bottom view Figure 4 10 SAS plug connector overview C141 E266 49 ...

Page 54: ...Port Receive negative signal S11 GND GND for SAS Secondary Port S12 Ts SAS Secondary Port Transmit negative signal S13 Ts SAS Secondary Port Transmit positive signal S14 GND GND for SAS Secondary Port P1 1 Reserved not used Not used P2 1 Reserved not used Not used P3 1 Reserved not used Not used P4 GND GROUND P5 GND GROUND P6 GND GROUND P7 5V Charge Pre charge pin for 5V P8 5V 5V power supply inpu...

Page 55: ...n the Vcc voltage For 3 3 V Vcc voltage recommended resistance is 220 Ω For 5 V Vcc voltage recommended resistance is 330 Ω 4 3 4 Connector requirements Table 4 3 lists the recommended connectors for the host system Table 4 3 Recommended connectors Manufacture Part number Remarks 1735104 1 Hybrid SMT Dip type 1735105 1 SMT type 1735164 1 Press Fit Type Tyco Electronics AMP 1735234 1 Press Fit Type...

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Page 57: ...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 ...

Page 58: ...cord of all maintenance work for replacing 4 Packaging a Store the HDD in the antistatic bag 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 dama...

Page 59: ...d if it is difficult to access the connector after the HDD is mounted on the system cabinet connect the external operator panel cable before mounting the HDD 2 Fix the HDD in the system cabinet with four mounting screws as follows The HDD has 8 mounting holes both sides 2 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...

Page 60: ...Confirm that the transfer rate and HDD SAS addresses can be recognized during the LINK RESET sequence b Issue the INQUIRY WRITE BUFFER and READ BUFFER commands to verify that data is received and transmitted normally in the interface 3 Verifying HDD operation When the LINK RESET sequence has completed the host system can issue a spindle motor start instruction and check whether the HDD is ready to...

Page 61: ...ed 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 4 3 1 FORMAT UNIT 04 and Chapter 7 Disk Media Management of the SAS INTERFACE MANUAL ...

Page 62: ...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...

Page 63: ...rther 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 operate according to the default value of each parameter 2 The MODE SELECT parameter is not saved for each Loop ID of but as the common parameter for all ...

Page 64: ...N 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 error recovery Suppression of ECC error correction 1 enabled 0 disabled 0 Processing is continued 0 Correction is enabled RETRY COUNT AT V...

Page 65: ...XIMUM PRE FETCH X 0000 MAXIMUM PRE FETCH CEILING X FFFF NUMBER OF CACHE SEGMENTS X 08 Notes 1 When Read Ahead caching operations are disabled by the caching parameter these parameter settings have no meaning except write cache feature 2 Determine the parameters in consideration of how the system accesses the disk When the access form is not determined uniquely because of the processing method the ...

Page 66: ...mmediately after turning off the power Damage 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 15 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 vibrat...

Page 67: ...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 ...

Page 68: ...he CHECK CONDITION status 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 LED keeps blinking This status can be cleared only when the HDDs are turned off and turned on again When the status is cleared the HDDs run ...

Page 69: ...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...

Page 70: ...rface 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 test items...

Page 71: ...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...

Page 72: ...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...

Page 73: ...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...

Page 74: ...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...

Page 75: ... 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 initiator collects detailed informati...

Page 76: ... 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...

Page 77: ...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...

Page 78: ...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 ...

Page 79: ...actory This manual does not cover troubleshooting at the factory level 6 4 5 Finding possibly faulty parts Finding possibly faulty parts in the field was explained in Subsection 6 4 2 This manual does not cover finding possibly faulty parts at the factory level C141 E266 75 ...

Page 80: ...mmended 6 5 1 Bag packaging Conductivity bag Seal tape 1st folding From Connector side Product 2nd folding 1 2 3 Figure 6 2 Bag packaging 1 Put the product in the conductivity bag The product shall be put in the bag from the connector side 2 Fold the bag and then seal the bag with the seal 76 C141 E266 ...

Page 81: ...ts into the cushion lower Insert the seal side upward In the fraction shipment empty the slots in the Figure 6 4 where figure is larger than the number of shipment and fill other slots with the products 3 Put the desiccants between the conductivity bag large and the cushion lower in the box 20g x 10 area 4 Put the cushion upper into the box 5 Seal the conductivity bag large with the packaging tape...

Page 82: ...Diagnostics and Maintenance 78 C141 E266 Figure 6 4 Fraction packaging ...

Page 83: ...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 ...

Page 84: ...sense code qualifier 14 X 00 15 SKSV 16 Sense key specific information 17 18 0 0 0 Port 0 0 0 0 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 80 C141 E266 ...

Page 85: ...ode 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 An i...

Page 86: ...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 SAS INTERFACE MANUAL If this error occurs in different blocks a PCBA or DE is faulty 7 2 4 S...

Page 87: ...troller host adapter expander etc 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 is a...

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Page 89: ...ime Between Failure MTTR Meau Time To Repair D D list Data Defect List O DC Direct Current DCR Disable CoRrection OEM Original Equipment Manufacturer DCRT Disable CeRtificaTion DE Disk Enclosure DTE Disable Transfer on Error P P list Primary defect list P N Parts Number E PCBA Printed Circuit Board Assembly ECC Error Correction Code PER Post ERror EER Enable Early Recovery PLO Sync Phase Lock Osci...

Page 90: ...Acronyms and Abbreviations 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 86 C141 E266 ...

Page 91: ...ture 45 BCRC 33 error analysis 79 block address of user space 35 error information indicated with sense data 81 block descriptor 57 box packaging 77 error rate 25 error recovery 15 C error recovery during self diagnostic 65 error recovery parameter 60 cache feature 14 eye mask 23 caching parameter 61 checking at abnormal end 57 F checking initial operation 56 checking operation after installation ...

Page 92: ...recovery parameter 60 low acoustic noise 16 ready LED output signal 51 low power consumption 16 recommended connectors 51 reliability 25 M removal 54 maintenance 67 replacement 54 69 maintenance level 69 reporting result of self diagnostic and error indication 65 maintenance requirement 68 maximum temperature 45 reserve and release function 15 microcode downloading 16 responses to operation errors...

Page 93: ... troubleshooting at repair site 74 troubleshooting procedure 72 troubleshooting with HDD replacement in field 72 troubleshooting with part replacement in factory 75 U unpackaging 54 unrecoverable error rate 25 user space 29 V vent hole 44 verify error recovery parameter 60 verifying HDD operation 56 verifying interface connection 56 W write read test 64 C141 E266 89 ...

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Page 95: ...l 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 3 373...

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