Fujitsu MHV2120AT manual Data corruption

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Maintenance and Diagnosis

Data corruption

When asking for repair, save all data stored in the disk drive beforehand. Fujitsu Limited is not responsible for any loss of data during service and repair.

(5)Notes on handling

a.General notes

a)Vibrations and shocks more severe than allowed will cause fatal damage to the device so be very careful. Be especially careful when unpacking the device.

b)Do not leave the device in a dusty environment.

c)Because the device uses GMR (giant MR head) and static sensitive CMOS semiconductors take the following precautions, be careful of the handling on the following points after the device is unpacked.

Use an antistatic mat, etc. in the environment for handling the equipment. The worker should also be physically grounded (e.g., wearing a wrist strap).

Hold by the DE section, do not directly touch the PCA unit unnecessarily.

b.Unpacking

a)Use a flat workplace, find which side of the pack is up and be careful not to have the wrong side facing upwards. Do not place the device directly on a hard table, place it on something soft such as a rubber mat.

b)Be careful not to apply any excessive force to the packed device when removing the shock absorbing material.

c)When taking the device out of the antistatic bag, be especially careful not to apply any excessive force to the PCA or to the interface connector section.

d)Never ever remove the DE seal label and screws and the DE cover.

c.Installation

a)When the power is ON, do not change the switch setting, or connecting, or disconnecting connectors.

b)Do not move the device or disconnect connectors with the power ON or until the disk drive unit comes to a complete stop after the power is turned OFF. (It is required to wait more than 30 seconds.)

d.Packaging

a)Place the device in an antistatic vinyl bag along with a desiccant (silica gel).

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C141-F072

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Contents Disk Drive Maintenance Manual MHV2120AT, MHV2100AT, MHV2080AT MHV2060AT, MHV2040ATFor Safe Operation Handling of This ManualRevision History This page is intentionally left blank Preface Overview of ManualConventions for Alert Messages Operating Environment Liability ExceptionImportant Alert Items Important Alert MessagesStatic, Damage Device damage Data corruptionDamage or Device damage This page is intentionally left blank Disk Drive Maintenance Manual Manual OrganizationThis page is intentionally left blank Contents Illustrations TablesMaintenance and Diagnosis Maintenance Rules for maintenanceMaintenance requirements Data corruption Maintenance levels Disk drive revision number Disk drive revision number labelDisplay of disk drive revision number Self-diagnostics Tools and test equipmentTest Test flowchart Operation Confirmation Status register contentsDisposition for error register contents Operation testTroubleshooting procedure Troubleshooting ProcedureDiagnostic test Troubleshooting disk drive replaced in fieldSystem level and field troubleshooting MHV2040AT Disk Drives Product Manual for switch settingTroubleshooting at factory This page is intentionally left blank Removal and Replacement Procedure Spare Parts Disk Drive RemovalModel and parts numbers Acronyms and Abbreviations CSSAcronyms and Abbreviations Index Index READER’S Comment Form This page is intentionally left blank MHV2120AT, MHV2100AT, MHV2080AT, MHV2060AT, MHV2040AT C141-F072-01ENThis page is intentionally left blank
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