Fujitsu MAU3036NC/NP, MAU3073NC/NP, MAU3147NC/NP manual System-level field troubleshooting

Page 110

Table 6.2

System-level field troubleshooting

 

 

 

Item

 

Recommended work

 

 

DC power cable

Check that the power cable is correctly connected to the disk drive and

 

power supply unit.

 

 

DC power level

Check that the DC voltage is within the specified range (±5%).

 

 

 

Check that +5 VDC supply is 4.75 to 5.25 VDC.

 

For NC model, check the voltage between pin 36 and 76 of the SCSI

 

connector.

 

For NP model, check the voltage between pin 3 and 4 of the power

 

connector.

 

 

 

Check that +12 VDC supply is 11.4 to 12.6 VDC.

 

For NC model, check the voltage between pin 1 and 2 of the SCSI

 

connector.

 

For NP model, check the voltage between pin 1 and 2 of the power

 

connector.

 

 

Electrical noise

Make sure the maximum ripple peak-to-peak value of +5 VDC is within

 

250 mV and +12 VDC is within 250 mV.

 

 

 

Make sure the high frequency noise (over 20 MHz) is less than 100 mVp-p.

 

 

Interface cable connection

Check that the SCSI interface cable is correctly connected between the disk

 

drive and controller.

 

 

Terminating resistors

For a daisy chain connection, check the terminating resistor on the last disk

 

drive only. For a star-burst connection, check that the terminating resistor

 

is correctly mounted on all disk drives.

 

 

Drive selection address

Check that the disk SCSI ID is set correctly.

 

 

Plug setup

Check that the jumpers on the PCA are set so that the disk drive and host

 

computer operate normally. See Section 5.3.

 

 

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. Check the DC voltage level

 

at the power connector for the disk drive.

 

 

 

If the AC voltage level is abnormal or there is a lot of electrical noise,

 

notify the user of the error.

 

 

 

If the DC voltage level is unstable, replace the power supply unit.

 

 

 

If possible, replace the disk drive. If replacing the disk drive does not

 

eliminate the error, the removed disk drive is probably not faulty. To

 

continue error analysis, refer to the hardware and software manuals

 

supplied with the system.

 

 

 

6-14

C141-E205

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Contents C141-E205-01EN For Safe Operation Revision Record Related Standards Preface General DescriptionConventions for Alert Messages Important Alert Items Important Alert MessagesTask Alert message Mounting Installation Manual Organization Product Maintenance This page is intentionally left blank Contents Diagnostics and Maintenance Appendix B Connector Signal Allocation IN-1Figures Page Tables Standard Features Hardware Structure System Configuration General DescriptionStandard Features C141-E205 Page Page NC model drives outer view Page System configuration Scsi ID LUNThis page is intentionally left blank Hardware Specifications Model name and order number SpecificationsHardware Specifications Scsi Function Specifications Model names and order numbers32/34 Meeprml Function specificationsMAU3147NC/NP MAU3073NC/NP MAU3036NC/NP ScsiPage Iops Environmental specificationsEnvironmental/power requirements MTBF= Error rateReliability Temperature is 60C or less Shows the Scsi functions provided with the IDD This page is intentionally left blank Data Space Logical Data Block Addressing Defect Management Cylinder configurationData Format Data SpaceSA0 Alternate spare area Spare area in cell Track format Track skew/head skew Sector formatPage Format capacity MAU3147NC/NPPage Defect Management Defect list Alternate block allocationPage Alternate block allocation by Format Unit command Alternate block allocation by Reassign Blocks command Write Write Extend Format UnitC141-E205 This page is intentionally left blank Installation Requirements Mounting Requirements External dimensionsNC external dimensions NP external dimensions Mounting IDD orientationsMounting frame structure MPU Surface temperature check pointHDC Surface temperature measurement points Spin-up current waveform +12 VDC 10 Power on/off sequence Delay time of spindle motor starting 13 NC connectors location 14 SCA2 type 16-bit Scsi connector 2 68-pin connector type 16-bit Scsi model NP model 15 NP connectors and terminals location16 68-pin type 16-bit Scsi interface connector GND EsidLED WTP20 16-bit Scsi ID external input IDD 21 Output signal for external LED 22 Scsi cables connection Cable connector requirements Recommended components for connectionLED ID0 ID1 ID2 ID3 External operator panel on NP model drives onlyGND LED C141-E205 Installation Page Connections Scsi bus connections 1 CN2 CN2 setting terminal on NP models only Scsi ID setting Scsi ID #15Scsi Motor start mode setting Each mode settingSetting Scsi terminator power supply NP model Setting the bus width of the Scsi interface NP model Write protect setting NP modelSetting of the Scsi interface operation mode NP model GND/WTPSCSI-3 Mode settingsDefault mode settings by Change Definition command Mounting Drives Check before mounting Setting check list NP model onlyMounting procedures Connecting Cables Remark Checking Scsi connection Checking the Scsi connection a Checking the Scsi connection B Formatting Page Setting parameters Awre ArreArre Awre PER Xxxx DiscXffff Read/write This page is intentionally left blank Self-diagnostic functions Diagnostics and MaintenanceDiagnostics Self-diagnostics Page Operation of self-diagnostics Test programs Maintenance Information Precautions Maintenance requirements C141-E205 Maintenance levels Revision numbers Revision labelIndicating revision numbers Tools and test equipment TestsTest flowchart Operation test Diagnostic testOperation Check Initial seek operation check Troubleshooting with disk drive replacement in the field System-level field troubleshooting Troubleshooting at the repair site Disk drive troubleshootingTroubleshooting with parts replacement in the factory Finding possibly faulty partsError Analysis Information Collection Sense data Error AnalysisError Analysis Information Collection Sense Data Analysis MSB ILILSB SksvError information indicated with sense data Definition of sense dataSense data 1-1x-xx, 3-1x-xx and E-1D-00 Disk read error Sense data 3-0C-03, 4-40-xx, and 4-C4-xxAppendix a Setting Terminals Setting Terminals on NP model onlyScsi ID Appendix B Connector Signal Allocation Diffsns GND ATN BSY ACK RST MSG SEL REQ DBP1Pcrca GND Diffsns Termpwr This page is intentionally left blank CN1 IndexBcrc PAD Mode SELECT/MODE SelectECC Programmable multi-segment data buffer This page is intentionally left blank Comment Form This page is intentionally left blankw
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MAU3036NC/NP, MAU3147NC/NP, MAU3073NC/NP specifications

The Fujitsu MAU3036NC/NP, MAU3147NC/NP, and MAU3073NC/NP are advanced models designed to offer high performance and reliability in various computing environments. These models are particularly notable for their optimized efficiency and robust feature set, making them suitable for a range of applications from enterprise servers to high-performance computing.

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