IBM C2B 2.25 Brick On Sled carrier 128-pin HPC Operating Limits, Temperature Measurement Points

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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

7.0 Operating Limits

The IBM Corporate specifications and bulletins, such as C-S 1-9700-000 in the contaminants section, that are referenced in this document are available for review. (Please contact your IBM Customer)

7.1	Environmental
Temperature
Operating Ambient			41 to 131˚ F (5 to 55˚ C)
Operating Casting Temperature			41 to 158˚ F (5 to 70˚ C)
Storage			34 to 149˚ F (1 to 65˚ C) See Note
Shipping			-40 to 149˚ F (-40 to 65˚ C)
Temperature Gradient
Operating			36˚ F (20˚ C) per hour
Shipping and storage			below condensation
Humidity
Operating		5 % to 90% noncondensing
Storage		5 % to 95% noncondensing
Shipping		5 % to 100%	(Applies at the packaged level)
Wet Bulb Temperature
Operating		80˚ F (26.7˚ C) maximum
Shipping and Storage		85˚ F (29.4˚ C) maximum
Elevation
Operating and Storage		-1000 to 10,000 feet (-304.8 to 3048 meters)
Shipping		-1000 to 40,000 feet (-304.8 to 12,192 meters)
Note:	Guidelines for storage below 1˚ C are given in IBM Technical Report T R 07.2112.

7.1.1 Temperature Measurement Points

The following is a list of measurement points and their temperatures (maximum and reliability). Maximum temperatures must not be exceeded at the worst case drive and system operating conditions with the drive randomly seeking, reading and writing. Reliability temperatures must not be exceeded at the nominal drive and system operating conditions with the drive randomly seeking, reading, and writing.

There must be significant air flow through the drive so that the casting and module temperature limits define in Table 15 are not exceeded. Figure 22 on page 78 defines where measurements should be made to deter- mine the top casting temperature during drive operation. Figure 23 on page 79 identify the module locations on the bottom side of the card and the measurement location on the bottom of the casting.

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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 SupplyExample 1. Calculate the mean 12 volt average current Power Calculation ExamplesExample 3. Power Calculation 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 4.2 DC/DC Converter Power supply methodsCxB Models 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 CommandsTrack to Track Skew SkewCylinder to Cylinder Skew Idle Time Functions Servo Bias Measurements Servo Run Out MeasurementsPredictive Failure Analysis Channel CalibrationDisk Sweep Command Timeout LimitsSave Logs and Pointers 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 Cable SSA Link Electrical CharacteristicsOption Pins and Indicators 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 viewOperating Vibration Drive Mounting GuidelinesOutput Vibration Limits V4S Nonoperating VibrationNonoperating Shock ContaminantsOperating Shock Acoustic Levels Upper Limit Sound Power Requirements Bels for C4x ModelsSource filename=STANDARD Electromagnetic Compatibility EMC SafetyStandards M Corporation Serial Storage Architecture S S a P H Transport Bibliography