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Seagate ST936751SS, ST973451SS manual Conducted noise immunity, Power sequencing, Current profiles

Models: ST936751SS ST973451SS

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6.2.1Conducted noise immunity

Noise is specified as a periodic and random distribution of frequencies covering a band from DC to 10 MHz. Maximum allowed noise values given below are peak-to-peak measurements and apply at the drive power connector.

+5V	=	250 mV pp from 0 to	100 kHz to 20 MHz.
+12V	=	800 mV pp from 100	0Hz to 8 KHz.
		450 mV pp from 8 KHz to 20 KHz.
		250 mV pp from 20 KHz to 5 MHz.

6.2.2Power sequencing

The drive does not require power sequencing. The drive protects against inadvertent writing during power-up and down.

6.2.3Current profiles

Typical +12V and +5V current profiles are shown below .

Note: All times and currents are typical. See Tables 2 and 3 for maximum current requirements.

Figure 1. Typical ST973451SS current profile

Savvio 15K SAS Product Manual, Rev. B

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Contents

PRODUCT MANUAL Savvio 15K SASST973451SS ST936751SS 100407739 Rev. BMarch Rev. A Revision status summary sheet09/15/06 Initial releaseSavvio 15K SAS Product Manual, Rev. B 4.0 Performance characteristics Contents5.0 Reliability specifications 6.0 Physical/electrical specifications8.0 Installation 7.0 Defect and error management10.0 Seagate Technology support services 9.0 Interface requirementsList of Figures Page 1.0 Scope Savvio 15K SAS Product Manual, Rev. B 2.1 Standards 2.0 Applicable standards and reference documentation2.1.1 Electromagnetic compatibility 2.1.1.1 Electromagnetic susceptibilityElectromagnetic compliance for the European Union 2.1.2 Electromagnetic complianceAustralian C-Tick Korean MICSCSI Commands Reference Manual SAS Interface Manual 2.2 Reference documentsSpecification for Acoustic Test Requirement and Procedures 2.1.3 European Union Restriction of Hazardous Substances RoHSSavvio 15K SAS Product Manual, Rev. B 3.0 General description 3.1 Standard features 3.2 Media description3.3 Performance 3.4 Reliability 3.7 Factory-installed accessories3.5 Formatted capacities 3.6 Programmable drive capacity3.8 Options 4.1 Internal drive characteristics 4.0 Performance characteristics4.2 Seek performance characteristics 4.2.1 Access time Gen 2.0 LP data4.2.2 Format command execution time General performance characteristics4.2.3 4.3 Start/stop time 4.4 Prefetch/multi-segmented cache control4.5 Cache operation 4.5.2 Prefetch operation 4.5.1 Caching write data5.1 Error rates 5.0 Reliability specifications5.1.1 Recoverable Errors 5.1.2 Unrecoverable Errors5.1.3 Seek errors 5.2 Reliability and service5.1.4 Interface errors 5.2.2 Preventive maintenanceOn-line only delay Maximum processing delayFully-enabled delay 5.2.4 S.M.A.R.TPredictive failures Temperature Log Page 0Dh5.2.5 Thermal monitor Parameter Code5.2.6.1 DST failure definition 5.2.6.2.1 State of the drive prior to testing5.2.6.2 Implementation 5.2.6.2.2 Invoking DSTShort test Function Code 001b 5.2.7 Product warrantyExtended test Function Code 010b 5.2.6.2.4 Log page entriesProduct repair and return information ShippingSavvio 15K SAS Product Manual, Rev. B 6.1 AC power requirements 6.0 Physical/electrical specifications6.2 DC power requirements Table 2 ST973451SS DC power requirementsGeneral DC power requirement notes ST936751SS DC power requirements6.2.1 Conducted noise immunity 6.2.2 Power sequencing6.2.3 Current profiles Figure 1. Typical ST973451SS current profileFigure 2. Typical ST936751SS current profile Savvio 15K SAS Product Manual, Rev. B6.3 Power dissipation ST973451SS in 3 Gbit operationST973451SS in 1.5 Gbit operation ST936751SS in 3 Gbit operation ST936751SS in 1.5 Gbit operation12 Vo lt A 6.4 Environmental limits 6.4.1 Temperature6.4.2 Relative humidity 6.4.3 Effective altitude sea level 6.4.4 Shock and vibration6.4.4.1 Shock Package size Packaged/product weightDrop height Figure 8. Recommended mounting6.4.5 Air cleanliness 6.4.4.2 Vibration6.4.6 Corrosive environment 6.4.8 Electromagnetic susceptibility 6.4.7 AcousticsFigure 9. Mounting configuration dimensions 6.5 Mechanical specifications7.0 Defect and error management 7.1 Drive internal defects/errors7.2 Drive error recovery procedures Table 4 Read and write retry count maximum recovery times 7.3 SAS system errorsMaximum recovery time per Maximum recovery time per7.4 Background Media Scan 7.5 Media Pre-Scan7.6 Deferred Auto-Reallocation 7.7 Idle Read After Write 8.1 Drive orientation 8.0 InstallationFigure 11. Air flow 8.2 Cooling8.4 Grounding 8.3 Drive mountingSavvio 15K SAS Product Manual, Rev. B 9.0 Interface requirements 9.1 SAS features9.1.1 task management functions SAS task management functions supported9.2 Dual port support Commands supported by Savvio SAS family drive 9.3 SCSI commands supportedCommands supported by Savvio SAS family drive continued Commands supported by Savvio SAS family drive continued Commands supported by Savvio SAS family drive continued 9.3.1 Inquiry data 9.3.2 Mode Sense dataSavvio inquiry data Bytes3. Current values CHG = Changeable bits indicates if default value is changeable4. Changeable values Savvio 15K SAS Product Manual, Rev. BMODE DATA HEADER 03 fa 00 10 00 00 00 BLOCK DESCRIPTOR Savvio 15K SAS Product Manual, Rev. B 9.4 Miscellaneous operating features and conditions Miscellaneous featuresMiscellaneous status Figure 12. Physical interface 9.4.1 SAS physical interfaceC OF DATUM B L Figure 13. SAS device plug dimensionsTO DATUM A Figure 14. SAS device plug dimensions detail9.4.3 Connector requirements 9.4.2 Physical characteristics9.4.4 Electrical description 9.4.5 Pin descriptions9.4.6 SAS transmitters and receivers Table 13 SAS pin descriptionsTX Transmitter 100 TY Differential Transfer Medium9.4.7 Power 9.5 Signal characteristicsLED drive signal 9.5.2 Differential signalsCharacteristic Table 16 General interface characteristics9.5.2.1 Eye masks 9.5.2.1.1 Eye masks overview 9.5.2.1.2 Receive eye maskFigure 17. Reveive tolerance eye mask 9.5.2.1.3 Jitter tolerance masksTable 17 Transmitter signal characteristics 9.5.2.2 Transmitter signal characteristicsPeak-to sinusoidal9.5.2.3 Receiver signal characteristics Table 17 Transmitter signal characteristicsTable 18 Receiver signal characteristics a All tests in this table shall be performed with zero-length test load shown in figureTable 19 Maximum allowable jitter 9.5.2.3.1 Jitter9.5.2.3.2 Receiver jitter tolerance 9.5.2.3.3 Compliant jitter test pattern CJTPATTable 21 Impedance requirements Sheet 1 of 9.5.2.3.4 Impedance specifications9.5.2.4.1 Transmitter characteristics Table 21 Impedance requirements Sheet 2 of9.5.2.4 Electrical TxRx connections = -5, 437dB = -10, 884dBTx+ TCTF Tx Figure 20. Zero-length test load Figure 21. ISI loss example at 3.0 GbpsFigure 22. ISI loss example at 1.5 Gbps 9.5.2.5 Receiver characteristics Savvio 15K SAS Product Manual, Rev. B Seagate Service Centers 10.0 Seagate Technology support servicesInternet Presales SupportUSA/Canada/Latin America support services Customer Service OperationsEurope, the Middle East and Africa Support Services Asia/Pacific Support ServicesIndex NumericsPage Page See also cooling Page Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USAPublication Number 100407739, Rev. B, Printed in USA