IBM C1B 1.12 Brick On Sled Carrier 128-pin HPC, SSA manual Description, General Features

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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

1.0Description

1.1Features

1.1.1 General Features

1.12/2.25/4.51 gigabytes formatted capacity (512 bytes/sector) Serial Storage Architecture (SSA) attachment (dual port) Brick O n Sled carrier and 3.5" small form factor models Rotary voice coil motor actuator

Closed-loop digital actuator servo (embedded sector servo) Magnetoresistive ( M R ) heads

(0,8,6,infinity) 8/9 rate encoding

Partial Response Maximum Likelihood ( P R M L ) data channel with digital filter All mounting orientations supported

Jumperable auto spindle motor start Jumperable write protection Spindle synchronization

Two L E D drivers Bezel (optional)

1.1.2 Performance Summary

Average read seek time (1.12 GB): 6.9 milliseconds

Average read seek time (2.25 GB): 7.5 milliseconds

Average read seek time (4.51GB): 8.0 milliseconds

Average Latency: 4.17 milliseconds

Split read/write control

Media data transfer rate: 9.59 to 12.58 MegaBytes/second (10 bands)

SSA data transfer rate: 20 Megabytes/second

1.1.3 Interface Controller Features

Multiple initiator support

Supports blocksizes from 256 to 5952 bytes

512K byte, multi-segmented, dual port data buffer Read-ahead caching

Adaptive caching algorithms

Write Cache supported (write back & write thru) Tagged command queuing

Command reordering Back-to-back writes (merged writes) Split reads and writes

Nearly contiguous read/write Link error recovery procedure exit Disable registration

Duplicate tags

Two byte U L P message codes SCSI response

Move data transfer messages Multiple ULP's

Automatic retry and data correction on read errors

Source filename=DESCRIP

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 General Features FeaturesInterface Controller Features DescriptionModels Reliability FeaturesGeneral SpecificationsSectors/logical block sct/lba User bytes/sector ub/sctUser bytes/logical block ub/lba Sectors/track sct/trkFor Each Notch Capacity EquationsFor Entire Drive 1 C1x Models Power Requirements by ModelInput Voltage + 5 Volts Supply + 1 2 Volts SupplyPower Calculation Examples Example 3. Power CalculationExample 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 Power supply methods CxB Models4.2 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 Environment Definition PerformanceWorkload Definition # of segments Ub/lba +Sequential Command Execution TimeRandom Basic Component DescriptionsData Transfer to/from Disk Data Transfer to/from SSA Link CommentsTheoretical Data Sector Transfer Rate Approximating Performance for Different EnvironmentsWhen Write Caching is Enabled When Read Caching is EnabledWhen Adaptive Caching is Enabled When Read-ahead is EnabledFor Queued Commands When No Seek is RequiredReordered Commands Back-To-Back CommandsSkew Cylinder to Cylinder SkewTrack to Track Skew Idle Time Functions Servo Bias Measurements Servo Run Out MeasurementsPredictive Failure Analysis Channel CalibrationCommand Timeout Limits Save Logs and PointersDisk Sweep M Corporation Mechanical Weight and DimensionsSmall Form Factor Models CxC 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 E D Locations front view CxB Models M Corporation Electrical Connector and Indicator LocationsElectrical Interface SSA Unitized ConnectorPin Carrier ConnectorRow SSA Link Electrical Characteristics Option Pins and IndicatorsSSA Link Cable Device Fault Pin/Indicator Option Port Pin Device Activity Pin/Indicator Option Port PinWrite Protect Option Port Pin Ground long Option Port PinEarly Power Off Warning or Power Fail Power Port Pin Front Jumper Connector12 12V Charge and 5V Charge Power Port pin 1 Programmable pin 1 Option Port PinSpindle Synchronization Over Sync Hard-wire M Corporation Source filename=RELIABLE Seek Error Rate Error DetectionPower On Hours Examples ReliabilityUseful Life Power on/off cyclesMaximum on/off cycles Product LifeMean Time Between Failure *MTBF Install Defect FreeSpql Shipped product quality level Sample Failure Rate ProjectionsConnector Insertion Cycles Periodic MaintenanceInstall Defect Free percentage Percent ESD ProtectionOperating Limits Temperature Measurement PointsP F E T Maximum ReliabilityVibration and Shock Temperature Measurement Points for all Models bottom viewDrive Mounting Guidelines Output Vibration LimitsOperating Vibration V4S Nonoperating VibrationContaminants Operating ShockNonoperating Shock Acoustic Levels Upper Limit Sound Power Requirements Bels for C4x ModelsSource filename=STANDARD Safety StandardsElectromagnetic Compatibility EMC M Corporation Serial Storage Architecture S S a P H Transport Bibliography