Seagate STT8000A manual Troubleshooting

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Drive operation and maintenance

Chapter 4

Troubleshooting

If you experience problems after you install the drive, take the following actions to try to solve the problems.

1.Make sure that all cable connections are secure.

2.Check the drive to be sure that the jumper settings are correct.

If a power interruption occurs during a backup or restore operation, start over when the power is restored. If the drive appears to fail during a backup or restore operation, try the following steps:

1.Remove and replace the cartridge and try again. Make sure you are using the correct type of tape cartridge.

2.Turn off all power to the computer and drive. Wait for the computer to power down and then start over.

3.Try a different tape—preferably one that has never been used.

4.Check all cable connections for proper contact.

5.Clean the tape drive head as previously instructed. Then try the operation again.

If problems persist, contact your tape drive supplier or Seagate technical support at

US and Canada	1-800-SEAGATE (1-800-732-4283)
Outside US and Canada	1-405-936-1234
Seagate Web Site	http://www.seagate.com
Seagate BBS	1-405-936-1630

Before you call technical support, be sure that you have the documentation for your computer and for all installed peripheral devices.

STT8000A Product Manual

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Contents STT8000A Atapi Minicartridge Drive Product Manual Page FCC Notice Important Information About This Manual Table of Contents Atapi interface Tape format Glossary Acronyms and measurements Drive overview IntroductionSTT8000A internal drive without mounting brackets Features Minicartridge technology overview Typical system configurationsSoftware Flash EepromReferences Chapter Title Description About this manualPhysical specifications SpecificationsOverview STT8000A 3.5-Inch mount general dimensions Specification Measurement Power specificationsFeature Specification Performance specificationsEnvironmental requirements Specification Operational Non-operationalMean-Time-Between Failures ReliabilityMean-Time-To-Repair Tape capacities and formats Recommended tapesTUV & IEC-RHEINLAND Regulatory complianceIntroduction InstallationBefore you begin Handling guidelinesJumper block and jumper settings Setting jumpersAligning the drive in the computer Installing the driveMounting dimensions Mounting holes on internal drive without mounting brackets Pin Assignment Description Source ATA-2 Interface pin assignmentsREQ Chapter Installation Front panel LED Drive operation and maintenanceLoading and unloading cartridges Using Travan cartridgesTravan cartridge write-protect switch-locked position Setting the write-protect switch Loading revised firmware via Seagate firmware cartridge Caring for tape cartridges Care and maintenance of the drive and cartridgesCaring for the drive Capstan Tape Head Troubleshooting Chapter Atapi interface ATA-2 SignalsATA-2 Interface Abrt ATA registersBits Mnemonic Description Previous Cmd Int Reason Supported ATA CommandsFeature Number Set Feature Commands Atapi Identify Device A1h Atapi Packet Command A0h DSC Atapi interfaceErase command Bit Byte Inquiry commandLoad/Unload command Locate command Log Select command Log Sense command Following table presents the Error Counter Page layout Error Counter Page ReadFollowing table presents the Tape Capacity Page layout Tape Capacity Page CodeMode Select command Code Description Mode Sense commandMode Block Descriptor Mode Parameter HeaderMode Capabilities and Mechanical Status Mode Medium PartitionMode Tape Parameters Read command Following table describes the Read Position layout Read Position commandChapter Atapi Interface Request Sense command Following table describes the Request Sense layout Rewind command Space command Test Unit Ready command Write command Write Filemark command Write Buffer download microcode command Tape partitioning Tape formatTrack positions Track format Track numberingFrames General track layout Blocks Tape reference servo patternRandomization Write equalizationChapter Tape format Theory of operations Block diagramMechanics Capstan drive motor assemblyCartridge load mechanism ChassisControl circuits Sensors and switchesHead design Travan minicartridge Media-Travan minicartridgesGlossary Appendix a Glossary Glossary Appendix a Glossary Acronyms and abbreviations Acronyms and measurementsLSI Measure Meaning Units of measurementAppendix B Acronyms and Measurements