Seagate STT8000A manual Features

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Introduction

Chapter 1

Figure 1-2

Internal STT8000A with mounting brackets

Features

The STT8000A embodies Seagate's commitment to engineer reliable and durable tape drive products. Key features of the drive are as follows:

∙Two Internal form factors for installation in 5.25-inch half-high or 3.5-inch by one-inch drive bays

∙Capability to write and read Travan TR-4 (QIC-3095) media, as well as minicartridge or QIC-Wide media conforming to the QIC-3080 standard

∙QIC-3095-MC tape format compliance for compatibility and information exchange

∙Typical uncompressed capacities of 4 Gbytes on 740-foot TR-4 media; 2 Gbytes on 400-foot QIC-Wide media; and 1.6 Gbytes on 400-foot quarter-inch minicartridge media

∙Typical compressed capacities of 8 Gbytes on 740 foot TR-4 media; 4 Gbytes on 400-foot QIC-Wide media; 3.2 Gbytes on 400-foot quarter-inch minicartridge media

∙Transfer rate optimized with FastSense—automatic selection of fastest supportable data transfer rate (600, 450, or 300 Kbytes/sec)

∙ATAPI interface that supports DMA and PIO modes 0, 1, or 2 with 512 Kbytes on- drive data buffer to facilitate the most efficient use of the host computer and tape drive.

∙Uncorrectable error rate of less than 1 in 1015 bits

∙Flash EEPROM to enable electrically upgradeable drive firmware

∙Custom Seagate -designed LSI circuitry to reduce component count and boost drive reliability

∙Low power consumption—less than 15.0 Watts (typical) for internal drives

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 configurationsReferences Flash EepromSoftware Chapter Title Description About this manualOverview SpecificationsPhysical specifications STT8000A 3.5-Inch mount general dimensions Specification Measurement Power specificationsFeature Specification Performance specificationsEnvironmental requirements Specification Operational Non-operationalMean-Time-To-Repair ReliabilityMean-Time-Between Failures Tape capacities and formats Recommended tapesTUV & IEC-RHEINLAND Regulatory complianceHandling guidelines InstallationIntroduction Before you beginJumper 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 switchLoading revised firmware via Seagate firmware cartridge Caring for the drive Care and maintenance of the drive and cartridgesCaring for tape cartridges Capstan Tape Head Troubleshooting Chapter ATA-2 Interface ATA-2 SignalsAtapi 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 Track positions Tape formatTape partitioning Frames Track numberingTrack format General track layout Blocks Tape reference servo patternRandomization Write equalizationChapter Tape format Theory of operations Block diagramChassis Capstan drive motor assemblyMechanics Cartridge load mechanismHead design Sensors and switchesControl circuits 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