Seagate ST318438LW Barracuda 36ES2 Product Manual, Rev. B Relative humidity, Shock and vibration

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Barracuda 36ES2 Product Manual, Rev. B

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6.4.2Relative humidity

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

a.Operating

5% to 90% non-condensing relative humidity with a maximum gradient of 30% per hour.

b.Non-operating

5% to 95% non-condensing relative humidity.

6.4.3Effective altitude (sea level)

a.Operating

–1000 to +10,000 feet (–305 to +3,048 meters)

b.Non-operating

–1000 to +40,000 feet (–305 to +12,210 meters)

6.4.4Shock and vibration

Shock and vibration limits specified in this document are measured directly on the drive chassis. If the drive is installed in an enclosure to which the stated shock and/or vibration criteria is applied, resonances may occur internally to the enclosure resulting in drive movement in excess of the stated limits. If this situation is apparent, it may be necessary to modify the enclosure to minimize drive movement.

The limits of shock and vibration defined within this document are specified with the drive mounted by any of the four methods shown in Figure 7, and in accordance with the restrictions of Section 8.3. Orientation of the side nearest the LED may be up or down.

6.4.4.1Shock

a.Operating—normal

The drive, as installed for normal operation, shall operate error free while subjected to intermittent shock not exceeding 63 Gs at a maximum duration of 2 msec (half sinewave). Shock may be applied in the X, Y, or Z axis.

b.Non-operating

The limits of non-operating shock shall apply to all conditions of handling and transportation. This includes both isolated drives and integrated drives.

The drive subjected to non-repetitive shock not exceeding 200 Gs at a maximum duration of 2 msec (half sinewave) does not exhibit device damage or performance degradation. Shock may be applied in the X, Y, or Z axis.

The drive subjected to a single-event shock not exceeding 350 Gs at a maximum duration of 2 msec (half sinewave) does not exhibit device damage or performance degradation. Shock may be applied in the X, Y, or Z axis.

c.Packaged

Disc drives shipped as loose load (not palletized) general freight will be packaged to withstand drops from heights as defined in the table below. For additional details refer to Seagate specifications 30190-001 (under 100 lbs/45 kg) or 30191-001 (over 100 lbs/45 Kg).

Package size

Packaged/product weight

Drop height

<600 cu in (<9,800 cu cm)

Any

60 in (1524 mm)

600-1800 cu in (9,800-19,700 cu cm)

0-20 lb (0 to 9.1 kg)

48 in (1219 mm)

>1800 cu in (>19,700 cu cm)

0-20 lb (0 to 9.1 kg)

42 in (1067 mm)

>600 cu in (>9,800 cu cm)

20-40 lb (9.1 to 18.1 kg)

36 in (914 mm)

Drives packaged in single or multipacks with a gross weight of 20 pounds (8.95 kg) or less by Seagate for general freight shipment shall withstand a drop test from 48 inches (1,070 mm) against a concrete floor or equivalent.

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Contents Product Manual, Volume Page Product Manual, Volume Page Revision Date Writer/Engineer Sheets Affected Revision status summary sheetPage Contents Installation Defect and error managementSeagate Technology support services Interface requirementsBarracuda 36ES2 Product Manual, Rev. B Vii List of FiguresPage Barracuda 36ES2 family drive ST336938LW shown ScopeBarracuda 36ES2 Product Manual, Rev. B Applicable standards and reference documentation Korean MIC Australian C-TickTaiwanese Bsmi General description Media characteristics Standard featuresPerformance ReliabilityOptions factory installed Factory installed accessoriesProgrammable drive capacity Performance characteristics Start/stop time Ultra2 Scsi Ultra160 ScsiPrefetch/multi-segmented cache control Caching write data Cache operationPrefetch operation Barracuda 36ES2 Product Manual, Rev. B Reliability specifications Preventive maintenance Reliability and serviceService life Service philosophyControlling S.M.A.R.T 7 S.M.A.R.TReporting control Performance impactDetermining rate Predictive failuresDST Failure Definition State of the drive prior to testingImplementation Invoking DSTShort test Function Code 001b Product warrantyExtended test Function Code 010b Log page entriesProduct repair and return information Barracuda 36ES2 Product Manual, Rev. B AC power requirements Physical/electrical specificationsDC power requirements Conducted noise immunity Power sequencing3 12 V Current profile +5 Volt Current during spindle start Typical Amper es Amps Power dissipation ST336938/ST318438 Barracuda 36ES2 Product Manual, Rev. B ST336918/ST318418 Environmental limits TemperatureEffective altitude sea level Barracuda 36ES2 Product Manual, Rev. B Relative humidityShock and vibration ShockRecommended mounting Barracuda 36ES2 Product Manual, Rev. B Vibration Air cleanlinessAcoustics Dimension Table Mechanical specificationsMounting configuration dimensions Barracuda 36ES2 Product Manual, Rev. B Drive error recovery procedures Defect and error managementDrive internal defects Scsi systems errors Configure drive options InstallationFormatting Drive ID/option select headerDo not install jumpers retain cover J6 jumper header for N model J5 jumper header on LW models only J2 option select header for LW models Barracuda 36ES2 Product Manual, Rev. B Barracuda 36ES2 Product Manual, Rev. B Function description Cooling Drive orientationAir flow Grounding Barracuda 36ES2 Product Manual, Rev. B Drive mountingBarracuda 36ES2 Product Manual, Rev. B Scsi interface messages supported Interface requirementsScsi interface commands supported Commands supported by Barracuda 36ES2 family drives Barracuda 36ES2 Product Manual, Rev. B Vendor ID Unit serial number page 80h Inquiry Vital Product dataImplemented operating definition page 81h Firmware numbers page C0hJumper settings page C2h Mode Sense data DEF CHG Barracuda 36ES2 Product Manual, Rev. B Condition/features supported Supported Status supported 2 REQ/ACK offset DC cable and connectorPhysical interface Model drive physical interface 50-pin Scsi I/O connector Pin Power Scsi interface cable requirements Scsi interface physical descriptionMating connectors for N model drives Barracuda 36ES2 Product Manual, Rev. B Mating connectorsScsi daisy chain interface cabling for N drives Nonshielded 68 pin Scsi device connector used on LW drives Scsi daisy chain interface cabling for LW drives GND GND DBP1 +DBP1 Electrical description Multimode signalsMultimode-SE and LVD alternatives LVD output signals Input characteristicsReceiver characteristics Transmitter characteristicsSingle-ended drivers/receivers for N models Single-ended drivers/receivers for LW modelsLow voltage differential I/O circuits General cable characteristicsTerminator requirements Terminator power DrivesLW drives Page Following table provides drive activity LED status Drive activity LEDAutomated Services Seagate Technology support services Online ServicesPresales Support Technical SupportUSA/Canada/Latin America Support Services Customer Service CSOEuropean Support Services Asia/Pacific Support Services Africa/Middle East Support ServicesCall Center Toll-free Direct dial Barracuda 36ES2 Product Manual, Rev. B Index Diffsens LED PCB System chassis Barracuda 36ES2 Product Manual, Rev. B