IBM C1C 1.12 3.5-inch Small FF 38-pin Unitized Power on/off cycles, Useful Life, Product Life

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U S E R RESPONSIBLE F O R V E R I F Y I N G VERSION A N D COMPLETENESS

O E M F U N C T I O N A L S P E C I F I C A T I O N U L T R A S T A R X P ( D F H C ) SSA M O D E L S 1.12/2.25 G B - 1.0" H I G H

	- 25 Power on/off cycles per month
	- 500 power on hours per month

6.5 Power on/off cycles
Maximum on/off cycles	1080/ year

6.6 Useful Life
Product Life	5 Years

Useful life is the length of time prior to the point at which product degradation begins to occur. The specifi- cation for the useful life calculation is the same as that for the * M T B F specification.

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I B M Corporation

Source filename=POH

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Contents Form Factor Disk Drive Version BM Corporation Preface Source filename=STSSHEXT When Reliability Operating LimitsContaminants Acoustic Levels Source filename=STSSHEXT Interface Controller Features FeaturesGeneral Features DescriptionReliability Features ModelsSpecifications GeneralUser bytes/logical block ub/lba User bytes/sector ub/sctSectors/logical block sct/lba Sectors/track sct/trkCapacity Equations For Each NotchFor Entire Drive Input Voltage + 5 Volts Supply Power Requirements by Model1 C1x Models + 1 2 Volts SupplyExample 1. Calculate the mean 12 volt average current Power Calculation ExamplesExample 3. Power Calculation Things to check when measuring 12 V supply current Example 4. Calculate the 12 volt peak currentVolt current during read/write operations C1x Models Typical 12 volt current C1x Models Typical 12 volt spin-up current C1x Models 2 C2x Models Power Calculation Examples Example 4. Calculate the 12 volt peak current Volt current during read/write operations C2x Models Typical 12 volt current C2x Models Typical 12 volt spin-up current C2x Models 3 C4x Models Power Calculation Examples Example 4. Calculate the 12 volt peak current Volt current during read/write operations C4x Models Typical 12 volt current C4x Models Typical 12 volt spin-up current C4x Models 4.2 DC/DC Converter Power supply methodsCxB Models Grounding Requirements of the Disk Enclosure Hot plug/unplug supportM Corporation Bring-up Sequence and Stop Times Event Nominal MaximumBring-up Sequence Times and Stop Time for C2x Models Source filename=PERFORM Workload Definition PerformanceEnvironment Definition # of segments Ub/lba +Random Command Execution TimeSequential Basic Component DescriptionsData Transfer to/from Disk Comments Data Transfer to/from SSA LinkApproximating Performance for Different Environments Theoretical Data Sector Transfer RateWhen Adaptive Caching is Enabled When Read Caching is EnabledWhen Write Caching is Enabled When Read-ahead is EnabledReordered Commands When No Seek is RequiredFor Queued Commands Back-To-Back CommandsTrack to Track Skew SkewCylinder to Cylinder Skew Idle Time Functions Predictive Failure Analysis Servo Run Out MeasurementsServo Bias Measurements Channel CalibrationDisk Sweep Command Timeout LimitsSave Logs and Pointers M Corporation Small Form Factor Models CxC Weight and DimensionsMechanical ClearancesDimensions are in millimeters Location of Side Mounting Holes of C4C Models Source filename=MECHANIC Unitized Connector Locations Source filename=MECHANIC Carrier Models CxB Dimensions CxB Models M Corporation Handle Docking and Ejection System Auto-docking Assembly Side Rails Side Rail Positioning Electrical Connector and Indicator Locations E D Locations front view CxB Models M CorporationSSA Unitized Connector Electrical InterfaceCarrier Connector PinRow SSA Link Cable SSA Link Electrical CharacteristicsOption Pins and Indicators Write Protect Option Port Pin Device Activity Pin/Indicator Option Port PinDevice Fault Pin/Indicator Option Port Pin Ground long Option Port Pin12 12V Charge and 5V Charge Power Port pin 1 Front Jumper ConnectorEarly Power Off Warning or Power Fail Power Port Pin Programmable pin 1 Option Port PinSpindle Synchronization Over Sync Hard-wire M Corporation Source filename=RELIABLE Power On Hours Examples Error DetectionSeek Error Rate ReliabilityMaximum on/off cycles Power on/off cyclesUseful Life Product LifeSpql Shipped product quality level Install Defect FreeMean Time Between Failure *MTBF Sample Failure Rate ProjectionsInstall Defect Free percentage Percent Periodic MaintenanceConnector Insertion Cycles ESD ProtectionTemperature Measurement Points Operating LimitsMaximum Reliability P F E TTemperature Measurement Points for all Models bottom view Vibration and ShockOperating Vibration Drive Mounting GuidelinesOutput Vibration Limits Nonoperating Vibration V4SNonoperating Shock ContaminantsOperating Shock Upper Limit Sound Power Requirements Bels for C4x Models Acoustic LevelsSource filename=STANDARD Electromagnetic Compatibility EMC SafetyStandards M Corporation Bibliography Serial Storage Architecture S S a P H Transport