Quantum A-Series manual Reliability Specifications, Mean Time Between Failures

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Reliability Specifications

Reliability Specifications

Table 23 Reliability Specifications

Mean Time Between Failures

The LTO-3 Half-Height Tape Drive is designed for maximum reliability and data integrity. Table 23 lists the reliability specifications.

Specification	Description

Cartridge load/	100,000 cartridge load/unload cycles (no
unload	thread)

Error recovery and	• Error correction code techniques
control	(C1 and C2 ECC)
	• Read-after-write (RAW)
	• Error monitoring and reporting (error log)
	• Retry on

Mean time between	250,000 hours MTBF at 100% duty cycle:
failures (MTBF)	power applied and tape moving continuously
	(tabletop drive; 50,000 hours at full load and
	25°C)

Mean time to replace	Less than 30 minutes
(MTTR)

Nonrecoverable error	Less than 1 in 1017 bits
rate

The mean time between failures (MTBF) for the internal drive is specified at 250,000 hours minimum. This specification includes all power-on and operational time but excludes maintenance periods. Operational time is assumed to be 100% of the power-on time. Operational time is the time the tape is loaded.

Quantum A-Series Tape Drives User’s Guide

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Contents $6HULHV7DSHULYHV Copyright Statement Contents Using Your Tape Drive Appendix B Data Cartridges Appendix C Regulatory Compliance Figures Quantum A-Series Tape Drives User’s Guide Viii Tables Quantum A-Series Tape Drives User’s Guide Preface Document Organization Notational Conventions Quantum Corporate Headquarters Document No Document Title Document DescriptionTechnical Publications Quantum HomeOverview.html Quantum A-Series Tape Drives User’s Guide Xvi Introduction OverviewIntroduction Overview Product Features Series Maximum Storage Maximum NativeCapacity Introduction Product Features Getting Started Java Plug-in Java Plug-in Certificate of SecurityResetting System Defaults Certificate of SecurityName Password/Setting Warranty Note Safety, Handling, and ESD ProtectionSafety Precautions Handling ESD, see Electrostatic Discharge ProtectionElectrostatic Discharge Protection Using Your Tape Drive Front Panel LEDs and Tape Eject Sdlt 600ALED/Button Color Port Title Symbol Action Explanation LEDSee the applicable data cartridge appendix for detailed LTO-3A This indication Signifies that the LED isEOT Series Data Cartridges Super DLTtape II Data CartridgeWrite-protect Switch on Super DLTtape II Data Cartridge Sliding the write-protect Switch toward Enables data to be Write Protecting an Ultrium Data CartridgeLoading a Data Cartridge Unloading a Data Cartridge Loading a Super DLTtape II Data CartridgeData Cartridge Care and Maintenance AlwaysDo not Power On Self-Test Post Troubleshooting Post OperationStage What You Observe Post Troubleshooting TipsOver Temperature Condition If… Then… You should…Frequently Asked Questions Specifications Series Sdlt 600A Tape Drive SeriesLTO-3A Tape DrivePivoting Optical Servo Series Sdlt 600A Tape DriveLaser Guided Magnetic Recording Magneto Resistive Cluster HeadsModular Design Sdlt 600A Tape Drive Modular Design Data Control Module Tape Control Module TCM PcbaPositive Engagement Tape Leader Buckling Mechanism Base PlateData Cartridge Receiver Front Panel ModuleElectronic Interface Module Super DLTtape II Data Cartridge Specification Product SpecificationsFunctional Specifications Performance DataShock and Vibration Specifications Shock Unpackaged Pulse Shape Square wave ½ sine pulseVibration Unpackaged Type Sine Sweep Shock Packaged Height Number Drop Drops Package WeightShock Unpackaged Type RandomShock Pulse Shape ½ sine pulse Vibration Packaged Type RandomType Sine, Sweep, and Dwell Vibration Type Sine SweepCurrent and Power Requirements ShockMax for Sdlt 600A tape Drive Modes9 DC Power AC Power W MaxPk1 Max3 Mode Typ2 Typ4 Sdlt 600A Tape Drive Recording Method Environmental SpecificationsTemperature Air Flow RequirementsStorage Unpacked or Specification Packed Shipping Limits Power OnSpecification Operating Limits No Tape Loaded Storage and ShipmentAltitude Recording Media SpecificationsCharacteristic Specification Media StructurePhysical Data Cartridge MediaOperating Conditions Media Shipping Operating, and Storage SpecificationsShipping Conditions Storage Conditions Archival Non ArchivalPower Specifications Dimension ValueSeries LTO-3A Tape Drive Drive Performance Specifications Specification ValueDrive Performance Specifications Specification Operational Non-operational Environmental RequirementsReliability Specifications Specification DescriptionMean Time Between Failures LTO Cartridge Specifications Mean Time to ReplaceEnvironmental Considerations Cartridge Memory Cartridge Reliability Using Data Cartridges for the Sdlt 600A Data CartridgesData Cartridge Handling Guidelines Super DLTtape Data CartridgeData Cartridge Handling Guidelines Data Cartridge Inspection Procedure Bottom View Super DLTtape II Data Cartridge Super DLTtape Data Cartridge Reel Locks Problems to Look for Inside the Data Cartridge Door Data Cartridge Write-Protect Switch After Loading the Data Cartridge and During Operation Using Data Cartridges for the LTO-3A Orange Write-protect Switch Position Indicator ResultLoading a Tape Cartridge Unloading a Tape Cartridge Ultrium Tape Cartridge Write-Protect Switch Write Protecting a Tape CartridgeTape Cartridge Care and Maintenance Cleaning the Tape Mechanism Occasional Cleaning of Tape HeadLife Expectancy of the Cleaning Tape LTO-3A Cleaning the Tape Mechanism Performing an Emergency Reset and Cartridge Eject If there is Then the tape drive firmwareLoading a Data Cartridge Unloading a Data Cartridge Regulatory Compliance Sdlt 600A Immunity and ESD Limits Electromagnetic Interference SusceptibilityType Regulation/Certification Current Harmonics and Flicker Emissions TestsTest Required Test Name Specification Performance Acoustic Noise EmissionsLTO-3A Country Regulatory Organization Compliant toVcci 2006-04 Class B Environmental Compliance Perchlorate MaterialDisposal of Electrical and Electronic Equipment Glossary Java applets are small Java programs that get downloaded to Degree Celsius C is a unit of temperature European Economic Community EOD Gigabyte Glossary Glossary Prml PWA QEZ Universal Serial Bus is a serial bus standard for connecting Mandates that producers of electronic goods assume