Seagate ST373554FC, ST336854FC manual Power dissipation, ST3146954FC

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6.3Power dissipation

ST3146954FC

Typical power dissipation under idle conditions in 2Gb operation is 13.96 watts (47.6 BTUs per hour).

To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 8). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by 3.4123.

Amperes

		ST3146854FC DC CURRENT/POWER vs THROUGHPUT (2 Gb)
1.800				Random 8 Block Reads				20.00
1.800								20.00
1.600								18.00
1.600
1.400								16.00
1.400
								14.00
1.200
								12.00
1.000
								10.00
0.800								8.00
								8.00
0.600								6.00
								6.00
0.400								4.00
0.0	50.0	100.0	150.0	200.0	250.0	300.0	350.0	400.0

I/Os per Second

5Volt A

12 Volt A

Watts

Power (watts)

Figure 8. ST3146954FC DC current and power vs. input/output operations per second

Cheetah 15K.4 FC Product Manual, Rev. B

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Contents ST3146954FC ST373554FC ST336854FC Cheetah 15K.4 FCPage ST3146954FC ST373554FC ST336854FC March Rev. B Draft Revision status summary sheetRev. A 07/15/05Page 6.0 Physical/electrical specifications Contents4.0 Performance characteristics 5.0 Reliability specifications8.0 Installation 7.0 Defect and error management9.0 Interface requirements 10.0 Seagate Technology support services Cheetah 15K.4 FC Product Manual, Rev. B List of Figures Page Figure 1. Cheetah 15K.4 FC family disc drive 1.0 ScopeCheetah 15K.4 FC Product Manual, Rev. B 2.1.1.1 Electromagnetic susceptibility 2.0 Applicable standards and reference documentation2.1 Standards 2.1.1 Electromagnetic compatibilityKorean MIC 2.1.2 Electromagnetic complianceElectromagnetic compliance for the European Union Australian C-Tick2.2 Reference documents Specification for Acoustic Test Requirement and ProceduresFibre Channel Interface Manual Cheetah 15K.4 FC Product Manual, Rev. B 3.0 General description 3.2 Media description 3.1 Standard features3.5.1 Programmable drive capacity 3.3 Performance3.4 Reliability 3.5 Formatted capacities3.7 Factory-installed options 3.6 Factory-installed accessories3.8 User-installed accessories 4.2.1 Access time 4.0 Performance characteristics4.1 Internal drive characteristics 4.2 Seek performance characteristics4.4 Prefetch/multi-segmented cache control 4.2.2 Format command execution time minutesGeneral performance characteristics 4.3 Start/stop time4.5 Cache operation 4.5.2 Prefetch operation 4.5.1 Caching write dataCheetah 15K.4 FC Product Manual, Rev. B Cheetah 15K.4 FC Product Manual, Rev. B 5.1.2 Unrecoverable Errors 5.0 Reliability specifications5.1 Error rates 5.1.1 Recoverable Errors5.2.2 Preventive maintenance 5.2 Reliability and service5.1.3 Seek errors 5.1.4 Interface errors5.2.4 S.M.A.R.T 5.2.3 Hot plugging the driveControlling S.M.A.R.T On-line only delay Fully-enabled delayPerformance impact Maximum processing delay5.2.6.1 DST failure definition Parameter CodeDescription 5.2.6 Drive Self Test DST5.2.6.2.3 Short and extended tests 5.2.6.2.1 State of the drive prior to testing5.2.6.2 Implementation 5.2.6.2.2 Invoking DSTShipping 5.2.7 Product warranty5.2.6.2.4 Log page entries 5.2.6.2.5 AbortProduct repair and return information 6.1 AC power requirements 6.0 Physical/electrical specifications6.2 DC power requirements 3 See +12V current profile in Figure 6.2.3 Current profiles General DC power requirement notes6.2.2 Power sequencing 6.2.1 Conducted noise immunityFigure 3. Typical ST3146954FC drive, 2 Gbit, +5V current profile Figure 2. Typical ST3146954FC drive, 2 Gbit, +12V current profileFigure 5. Typical ST373554FC drive +5V current profile Figure 4. Typical ST373554FC drive +12V current profileFigure 7. Typical ST336854FC drive +5V current profile Figure 6. Typical ST336854FC drive +12V current profileST3146954FC 6.3 Power dissipationPower watts ST373554FCST336854FC 6.4.1 Temperature a. Operating 6.4 Environmental limits6.4.2 Relative humidity 6.4.4 Shock and vibration 6.4.3 Effective altitude sea level a. Operating6.4.4.1 Shock Figure 12. Recommended mounting Packaged/product weightPackage size Drop height6.4.7 Electromagnetic susceptibility 6.4.5 Air cleanliness6.4.4.2 Vibration a. Operating-normal 6.4.6 AcousticsFigure 13. Mounting configuration dimensions 6.5 Mechanical specifications7.1 Drive internal defects/errors 7.0 Defect and error management7.2 Drive error recovery procedures Cheetah 15K.4 FC Product Manual, Rev. B 7.3 FC-AL system errors 7.4.1 Media Pre-Scan 7.4 Background Media Scan8.1 Drive ID/option selection 8.0 InstallationFigure 15. LED indicator connector 8.2 LED connectionsFigure 14. Physical interface 8.3 Drive orientation 8.2.1 J6 connector requirements8.4 Cooling 8.6 Grounding 8.5 Drive mountingK x X = F 15lb = 67N 9.1.1 Fibre Channel link service frames 9.1 FC-AL features9.0 Interface requirements Task name 9.1.2 Fibre Channel task management functions9.1.3 Fibre Channel task management responses Fibre Channel SCSI FCP task management functionsNPort login PLOGI payload 9.1.4 Fibre Channel port loginBytes Process Login PLRI payload 9.1.5 Fibre Channel port login accept9.1.6 Fibre Channel Process Login NPort Login Accept ACC payloadFabric Login FLOGI payload 9.1.7 Fibre Channel Process Login Accept9.1.8 Fibre Channel fabric login Process Login Accept ACC payloadFabric Login Accept ACC payload 9.1.9 Fibre Channel fabric accept login9.1.10 Fibre Channel Arbitrated Loop options 9.2 Dual port supportCommand name 9.3 SCSI commands supportedTable 16 Supported commands Command codeTable 16 Supported commands continued Cheetah 15K.4 FC Product Manual, Rev. B 3 Reference Mode Sense command 1Ah for mode pages supported 9.3.2 Mode Sense data 9.3.1 Inquiry dataDefinitions SAV = Current saved value CHG = Changeable bits indicates if default value is changeable3. Current values 4. Changeable valuesMODE SENSE 10 BYTE HEADER DATA Cheetah 15K.4 FC Product Manual, Rev. B Cheetah 15K.4 FC Product Manual, Rev. B Miscellaneous status 9.4 Miscellaneous operating features and conditionsMiscellaneous features Feature or condition9.5 FC-AL physical interface 9.5.1 Physical characteristics9.5.1.1 Physical description Figure 20. J6 connector dimensions 9.5.2 Connector requirementsFeatures FC-AL SCA device connector dimensions9.5.4 Pin descriptions 9.5.3 Electrical descriptionFigure 21. FC-AL transmitters and receivers 9.5.6 Power9.5.7 Fault LED Out 9.5.5 FC-AL transmitters and receiversNormal command activity 9.5.9 Enable port bypass signals9.5.8 Active LED Out 9.5.10 Motor start controls9.5.11 SEL6 through SEL0 ID lines 9.5.11.1 Parallel Enclosure Services Interface ESISEL ID SettingArbitrated loop physical address ALPA values ALPA9.6.1 9.6 Signal characteristicsTTL input characteristics 9.5.12 Device control codesBit Time Vout mv XMIT Eye 9.6.2 LED driver signals9.6.3 FC Differential output 9.6.4 FC Differential input941 ps 659 ps 376 ps Receive eye diagramEye diagram data values Vin mvCheetah 15K.4 FC Product Manual, Rev. B Internet 10.0 Seagate Technology support servicesOnline services Seagate Service CentersData Recovery Services Customer Service OperationsUSA/Canada/Latin America support services Seagate Service Centers Warranty ServiceWarranty Service European support servicesAfrica/Middle East support services FAX services-All Europe toll callAsia/Pacific support services Numerics IndexDownload microcode with offsets and save mode 7 front panel 38 FS 49, 50, 52 function NN 49 mounting 46 holes 46 orientationspin descriptions 66 PN 49 Self-Monitoring Analysis and Reporting Technology 9 LED driver 72 single-unit shipping pack kit 10 SMART 9 SMP = 1 in Mode Select command 63 SO 49UI 50, 51 unformatted Page Seagate Technology LLC