Seagate ST3400071FC, ST3500071FC manual Environmental limits, Temperature, Relative humidity

Page 36

6.4Environmental limits

Temperature and humidity values experienced by the drive must be such that condensation does not occur on any drive part. Altitude and atmospheric pressure specifications are referenced to a standard day at 58.7°F (14.8°C). Maximum wet bulb temperature is 82°F (28°C).

6.4.1Temperature

a.Operating

The maximum allowable continuous or sustained HDA case temperature for the rated MTBF is 122°F (50°C) The maximum allowable HDA case temperature is 60°C. Occasional excursions of HDA case tem- peratures above 122°F (50°C) or below 41°F (5°C) may occur without impact to specified MTBF. Continual or sustained operation at HDA case temperatures outside these limits may degrade MTBF.

Provided the HDA case temperatures limits are met, the drive meets all specifications over a 41°F to 131°F (5°C to 55°C) drive ambient temperature range with a maximum temperature gradient of 36°F (20°C) per hour. Air flow may be needed in the drive enclosure to keep within this range (see Section 8.3). Operation at HDA case temperatures outside this range may adversely affect the drives ability to meet specifications. To confirm that the required cooling for the electronics and HDA case is provided, place the drive in its final mechanical configuration, perform random write/read operations and measure the HDA case temperature after it has stabilized.

b.Non-operating

–40° to 158°F (–40° to 70°C) package ambient with a maximum gradient of 36°F (20°C) per hour. This specification assumes that the drive is packaged in the shipping container designed by Seagate for use with drive.

HDA Temperature
Check Point	0.5”
	0.5”

Figure 4. Location of the HDA Temperature check point

6.4.2Relative humidity

The values below assume that no condensation on the drive occurs.

a.Operating

5% to 95% non-condensing relative humidity with a maximum gradient of 20% per hour non-condensing.

b.Non-operating

5% to 95% non-condensing relative humidity with a maximum gradient of 20% per hour non-condensing.

6.4.3Effective altitude (sea level)

a.Operating

–200 to +10,000 feet (–61 to +3,048 meters)

b.Non-operating

–200 to +40,000 feet (–61 to +12,210 meters)

28	NL35 Series FC Product Manual, Rev. D

Image 36

Contents NL35 Series FC ST3500071FC ST3400071FCPage Contents Defect and error management InstallationInterface requirements Seagate Technology support services NL35 Series FC Product Manual, Rev. D List of Figures NL35 Series family disc driveViii NL35 Series FC Product Manual, Rev. D Scope NL35 Series family disc driveNL35 Series FC Product Manual, Rev. D Applicable standards and reference documentation StandardsElectromagnetic compatibility Electromagnetic susceptibilityElectromagnetic compliance Environmental protectionReference documents Fibre Channel Interface ManualNL35 Series FC Product Manual, Rev. D General description Standard features Media description PerformanceReliability Formatted capacitiesFactory-installed accessories Factory-installed optionsUser-installed accessories Programmable drive capacityPerformance characteristics Internal drive characteristicsSeek performance characteristics Access timeGeneralized performance characteristics GHzStart/stop time Prefetch/multi-segmented cache controlCache operation Caching write data Prefetch operationPage NL35 Series FC Product Manual, Rev. D Reliability specifications Error ratesReliability and service Recoverable ErrorsUnrecoverable errors Seek errorsPreventive maintenance Mean Time Between Failure MtbfHot plugging the drive 4 S.M.A.R.T Controlling S.M.A.R.TPerformance impact MillisecondsTemperature Log page 0Dh Predictive failuresThermal monitor Parameter Code DescriptionState of the drive prior to testing Drive Self Test DSTDST Failure Definition ImplementationInvoking DST Short and extended testsShort test Function Code 001b Extended test Function Code 010bProduct warranty AbortShipping Product repair and return informationPhysical/electrical specifications AC power requirementsDC power requirements ST3500071FC/ST3400071FC DC power requirementsGeneral DC power requirement notes Power sequencingConducted noise immunity Power dissipation Temperature Environmental limitsRelative humidity Effective altitude sea levelPackage size Packaged/product weight Drop height Shock and vibrationShock Recommended mounting Air cleanliness VibrationTypical idle mode sound power ST3500071FC and ST3400071FC Corrosive environmentAcoustics Mechanical specifications Mounting configuration dimensionsNL35 Series FC Product Manual, Rev. D Defect and error management Drive internal defects/errorsDrive error recovery procedures 108.3 FC-AL system errors Background Media ScanMedia Pre-Scan NL35 Series FC Product Manual, Rev. D Installation Drive ID/option selectionDrive orientation Cooling Air flowDrive mounting GroundingNL35 Series FC Product Manual, Rev. D FC-AL features Fibre Channel link service framesLink services supported Type of frame Link serviceFibre Channel task management functions Fibre Channel Scsi FCP task management functionsFibre Channel task management responses FC Scsi FCP response codesFibre Channel port login NPort login Plogi payloadBytes Fibre Channel port login accept NPort Login Accept ACC payloadFibre Channel Process Login Process Login Plri payloadFibre Channel Process Login Accept Process Login Accept ACC payloadFibre Channel fabric login Fabric Login Flogi payloadFibre Channel fabric accept login Fabric Login Accept ACC payloadDual port support Fibre Channel Arbitrated Loop optionsFC-AL options supported Option SupportedScsi commands supported Supported commandsCommand code Supported Command name Supported commands Supported commands Supported commands Supported commands Mode Sense data Inquiry dataNL35 Series inquiry data Bytes Data hexPage DEF CHG NL35 Series FC Product Manual, Rev. D Miscellaneous operating features and conditions Miscellaneous featuresSupported Feature or condition Miscellaneous statusPhysical characteristics FC-AL physical interfacePhysical description Connector requirements Part description Positions Part number FeaturesElectrical description Pin Signal name Signal type Pin descriptionsFC-SCA pin descriptions Power Fault LED OutFC-AL transmitters and receivers Enable port bypass signals Normal command activity LED statusActive LED Out Active LED Out conditionsMotor start control signals Parallel Enclosure Services Interface ESIMotor start controls 11 SEL6 through SEL0 ID linesSetting Arbitrated loop physical address Alpa valuesHex Dec Signal characteristics LED driver signals LED drive signalDifferential Pecl output characteristics Differential Pecl input characteristicsEye diagram data values Link rate GHzNL35 Series FC Product Manual, Rev. D Seagate Technology support services InternetPresales Support Technical SupportWarranty Service Data Recovery Services Authorized Service CentersData Recovery Services Call Center Toll-free Direct dial Index NumericsFAN Flogi Plogi Page See also cooling