IBM C4C 4.51 3.5-inch Small FF 38-pin Unitized, SSA manual Write Protect Option Port Pin

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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

The width, period, and tolerance of the negative active Sync pulse is manufacturer dependent, and thus syn- chronization across different manufacturers or even different product lines of the same manufacturer is not guaranteed. The Sync pin usage is controlled by mode pages within the mode select command.

This pin is not accessible on CxB model.

5.5.4 - Write Protect (Option Port Pin 4)

a low active input pin, that when active (pulled below 0.8 V), the drive will prohibit commands that alter the customer data area portion of the the media from being performed. The state of this pin is monitored on a per command basis. Refer to "Option pins" section of the Ultrastar X P ( D F H C ) S S A Models Interface Specification for a detailed functional description of this pin.

This pin is not accessible on CxB models.

5.5.5 - Ground long (Option Port Pin 5)

The Ground long output pin on CxC and CxB models shall be capable of syncing 1.0 Amp of current. This pin is longer than any others in the option block to allow for the ground to mate first or last in a hot-plug or hot-unplug situation.

5.5.6 - Device Activity Pin/Indicator (Option Port Pin 6)

A low active L E D output pin on CxC models can be used to drive an external Light Emitting Diode. CxB models have an integrated Green LED. Refer to the "Option Pins" section of the Ultrastar X P ( D F H C )

S S A Models Interface Specification for a detailed functional description of this pin/LED.

CxC models provide up to 24 mA of T T L level L E D sink current capability. Current limiting for the L E D is provided on the electronics card. The anode may be tied to the + 5 V power source (provided on the the unitized connector). The L E D Cathode is then connected to the Device Activity pin to complete the circuit.

5.5.7

+ 5V (Option Port Pin 7)

The +

5V output pin on CxC and CxB models shall supply up to 1.0 Amp of current limited + 5 V ( + / -

10%), as long as power is supplied to the device.

5.5.8 - Device Fault Pin/Indicator (Option Port Pin 8)

The Device Fault pin on CxC models can be used to drive an external Light Emitting Diode. CxB models have an integrated Amber LED. Refer to the "Option Pins" section of the Ultrastar X P ( D F H C ) S S A Models Interface Specification for a detailed functional description of this pin/LED.

CxC models provide up to 24 mA of T T L level L E D sink current capability. Current limiting for the L E D is provided on the electronics card. The anode may be tied to the + 5 V power source (provided on the the unitized connector). The L E D Cathode is then connected to the Device Fault pin to complete the circuit.

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I B M Corporation

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Contents Form Factor Disk Drive Version BM Corporation Preface Source filename=STSSHEXT When Operating Limits ReliabilityContaminants Acoustic Levels Source filename=STSSHEXT Description FeaturesGeneral Features Interface Controller FeaturesModels Reliability FeaturesGeneral SpecificationsSectors/track sct/trk User bytes/sector ub/sctSectors/logical block sct/lba User bytes/logical block ub/lbaFor Each Notch Capacity EquationsFor Entire Drive + 1 2 Volts Supply Power Requirements by Model1 C1x Models Input Voltage + 5 Volts SupplyExample 3. Power Calculation Power Calculation ExamplesExample 1. Calculate the mean 12 volt average current Example 4. Calculate the 12 volt peak current Things to check when measuring 12 V supply 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 CxB Models Power supply methods4.2 DC/DC Converter Hot plug/unplug support Grounding Requirements of the Disk EnclosureM Corporation Event Nominal Maximum Bring-up Sequence and Stop TimesBring-up Sequence Times and Stop Time for C2x Models Source filename=PERFORM # of segments Ub/lba + PerformanceEnvironment Definition Workload DefinitionBasic Component Descriptions Command Execution TimeSequential RandomData Transfer to/from Disk Data Transfer to/from SSA Link CommentsTheoretical Data Sector Transfer Rate Approximating Performance for Different EnvironmentsWhen Read-ahead is Enabled When Read Caching is EnabledWhen Write Caching is Enabled When Adaptive Caching is EnabledBack-To-Back Commands When No Seek is RequiredFor Queued Commands Reordered CommandsCylinder to Cylinder Skew SkewTrack to Track Skew Idle Time Functions Channel Calibration Servo Run Out MeasurementsServo Bias Measurements Predictive Failure AnalysisSave Logs and Pointers Command Timeout LimitsDisk Sweep M Corporation Clearances Weight and DimensionsMechanical Small Form Factor Models CxCDimensions 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 E D Locations front view CxB Models M Corporation Electrical Connector and Indicator LocationsElectrical Interface SSA Unitized ConnectorPin Carrier ConnectorRow Option Pins and Indicators SSA Link Electrical CharacteristicsSSA Link Cable Ground long Option Port Pin Device Activity Pin/Indicator Option Port PinDevice Fault Pin/Indicator Option Port Pin Write Protect Option Port PinProgrammable pin 1 Option Port Pin Front Jumper ConnectorEarly Power Off Warning or Power Fail Power Port Pin 12 12V Charge and 5V Charge Power Port pin 1Spindle Synchronization Over Sync Hard-wire M Corporation Source filename=RELIABLE Reliability Error DetectionSeek Error Rate Power On Hours ExamplesProduct Life Power on/off cyclesUseful Life Maximum on/off cyclesSample Failure Rate Projections Install Defect FreeMean Time Between Failure *MTBF Spql Shipped product quality levelESD Protection Periodic MaintenanceConnector Insertion Cycles Install Defect Free percentage PercentOperating Limits Temperature Measurement PointsP F E T Maximum ReliabilityVibration and Shock Temperature Measurement Points for all Models bottom viewOutput Vibration Limits Drive Mounting GuidelinesOperating Vibration V4S Nonoperating VibrationOperating Shock ContaminantsNonoperating Shock Acoustic Levels Upper Limit Sound Power Requirements Bels for C4x ModelsSource filename=STANDARD Standards SafetyElectromagnetic Compatibility EMC M Corporation Serial Storage Architecture S S a P H Transport Bibliography
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