Seagate ST936751FC, ST973451FC manual FC CURRENT/POWER vs Throughput FC 1GB Random 8 Block Reads

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ST936751FC

Typical power dissipation under idle conditions in 1Gb operation is 5.35 watts (18.26 BTUs per hour). Typical power dissipation under idle conditions in 2Gb operation is 5.4 watts (18.43 BTUs per hour). Typical power dissipation under idle conditions in 4Gb operation is 5.75 watts (19.62 BTUs per hour).

To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 4). 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.

FC CURRENT/POWER vs THROUGHPUT (FC - 1GB)

Random 8 Block Reads

	1.400									14.00	5Volt A
											5Volt A
											12 Volt A
	1.200									12.00	Watts
											Watts
	1.000									10.00
Amperes	0.800									8.00	ower (watts)
Amperes	0.600									6.00	ower (watts)
	0.400									4.00
	0.200									2.00
	0.000									0.00
	0.0	50.0	100.0	150.0	200.0	250.0	300.0	350.0	400.0	450.0

I/Os per Second

Figure 7. ST936751FC DC current and power vs. input/output operations per second at 1 Gbit

FC CURRENT/POWER vs THROUGHPUT (FC - 2GB)

Random 8 Block Reads

	1.400									14.00	5Volt A
											5Volt A
											12 Volt A
	1.200									12.00	Watts
											Watts
	1.000									10.00
Amperes	0.800									8.00	ower (watts)
Amperes	0.600									6.00	ower (watts)
	0.400									4.00
	0.200									2.00
	0.000									0.00
	0.0	50.0	100.0	150.0	200.0	250.0	300.0	350.0	400.0	450.0

I/Os per Second

Figure 8. ST936751FC DC current and power vs. input/output operations per second at 2 Gbit

Savvio 15K.1 FC Product Manual, Rev. B

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Contents ST973451FC ST936751FC Savvio 15K.1 FCPage Contents Defect and error management Physical/electrical specificationsInstallation Interface requirementsSeagate Technology support services Savvio 15K.1 FC Product Manual, Rev. B List of Figures Page Savvio 15K.1 family disc drive ScopeSavvio 15K.1 FC Product Manual, Rev. B Standards Applicable standards and reference documentationElectromagnetic compatibility Electromagnetic susceptibilityEuropean Union Restriction of Hazardous Substances RoHS Ncits TR-19 Reference documentsSavvio 15K.1 FC Product Manual, Rev. B General description Standard features Performance Media descriptionReliability Formatted capacitiesOptions Factory-installed accessoriesProgrammable drive capacity Internal drive characteristics Performance characteristicsSeek performance characteristics Access timeGeneral performance characteristics Format command execution timeStart/stop time Cache operation Prefetch/multi-segmented cache controlCaching write data Prefetch operation Error rates Reliability specificationsRecoverable Errors Unrecoverable Errors Reliability and serviceSeek errors Interface errors4 S.M.A.R.T Hot plugging the driveControlling S.M.A.R.T Reporting control Performance impactDetermining rate Predictive failuresParameter Code Description Temperature Log Page 0DhDrive Self Test DST DST failure definitionImplementation State of the drive prior to testingInvoking DST Short and extended testsLog page entries Product warrantyAbort ShippingProduct repair and return information AC power requirements Physical/electrical specificationsDC power requirements General DC power requirement notes Conducted noise immunity Power sequencingCurrent profiles +5V +12V Typical ST936751FC drive +12V and +5V current profiles CURRENT/POWER vs Throughput FC 1GB Random 8 Block Reads Power dissipationST973451FC CURRENT/POWER vs Throughput FC 4GB Random 8 Block Reads ST936751FC FC CURRENT/POWER vs Throughput FC 1GB Random 8 Block ReadsFC CURRENT/POWER vs Throughput FC 4GB Random 8 Block Reads TemperatureEnvironmental limits Effective altitude sea level Relative humidityShock and vibration ShockPackage size Packaged/product weight Drop height Recommended mounting Vibration Air cleanlinessCorrosive environment Acoustics Drive dimensions inches Mechanical specificationsDrive internal defects/errors Defect and error managementDrive error recovery procedures FC-AL system errors Media Pre-Scan Background Media ScanDeferred Auto-Reallocation Idle Read After Write Drive orientation InstallationCooling Grounding Drive mountingFibre Channel link service frames FC-AL featuresLink services supported Type of frame Interface requirementsFibre Channel task management responses Fibre Channel task management functionsFibre Channel Scsi FCP task management functions Task name SupportedNPort login Plogi payload Bytes Fibre Channel port loginFibre Channel Process Login Fibre Channel port login acceptNPort Login Accept ACC payload Bytes Process Login Plri payloadFibre Channel fabric login Fibre Channel Process Login AcceptProcess Login Accept ACC payload Bytes Fabric Login Flogi payload BytesFabric Login Accept ACC payload Bytes Fibre Channel fabric accept loginFibre Channel Arbitrated Loop options Dual port supportFC-AL options supported Option SupportedSupported commands Command code Command name Scsi commands supportedDisconnect/reconnect control page 02h Savvio 15K.1 FC Product Manual, Rev. B LBdata Supported commands Command code Supported 4 Command name Savvio inquiry data Bytes Data hex Inquiry dataMiscellaneous features Miscellaneous operating features and conditionsSupported Feature or condition Miscellaneous statusFC-AL physical interface Physical characteristicsPhysical description Part description Positions Part number Features Connector requirementsElectrical description Pin Signal name Signal type FC-SCA pin descriptions Pin Signal name Signal typePin descriptions Fault LED Out PowerFC-AL transmitters and receivers Active LED Out Enable port bypass signalsMotor start controls 11 SEL6 through SEL0 ID lines Parallel Enclosure Services Interface ESIArbitrated loop physical address Alpa values SettingHex Dec TTL input characteristics Signal characteristicsDevice control codes Differential Pecl input Differential Pecl outputSavvio 15K.1 FC Product Manual, Rev. B Internet Seagate Technology support servicesPresales Support Technical SupportData Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dial Numerics IndexFAN Page Plogi SEL ID See also cooling