IBM C1C 1.12 3.5-inch Small FF 38-pin Unitized, SSA manual M Corporation

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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

Note: A timeout of one minute or more is recommended but N O T required. The larger system timeout limit allows the system to take advantage of the extensive E R P / D R P that the drive may attempt in order to successfully complete the start-up sequence.

Note: A 60 second minimum is required if electronics card replacement is required as a service practice. Please contact an IBM Customer Representative for more details if required.

Medium Access Command Time: The timeout limit for medium access commands that transfer user data and/or non-user data should be a minimum of 30 seconds. These commands are:

Log Select	Read Defect Data	Send Diagnostic
Log Sense	Read Long	Verify
Mode Select	Receive Diagnostic Results	Write
Mode Sense	Release	Write and Verify
Pre-Fetch	Reserve	Write Buffer
Read	Rezero Unit	Write Long
Read Capacity	Seek	Write Same

Note: The 30 sec limit assumes the absence of SSA link contention and user data transfers of 64 blocks or less. This time should be adjusted for anticipated SSA link contention and if longer user data transfers are requested.

Timeout limits for other commands: The drive should be allowed a minimum of 5 seconds to complete these commands:

Format Unit (with Immed bit = 1)	Request Sense
Inquiry	Start/Stop Unit (with Immed bit = 1)
Read Buffer	Synchronize Cache
Read Memory	Test Unit Ready

When Automatic Reallocation is enabled add 45 seconds to the timeout of the following commands: Read (6), Read (10), Write (6), Write (10), Write and Verify, and Write Same.

The command timeout for a command that is not located at the head of the command queue should be increased by the sum of command timeouts for all of the commands that are performed before it is.

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Source filename=PERFORM

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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