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Seagate ST9300603SS Performance characteristics, Internal drive characteristics, Access time

Models: ST9146803SS ST9300603SS ST9300503SS ST9146603SS ST9146703SS ST9300403SS

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5.0Performance characteristics

5.0Performance characteristics

This section provides detailed information concerning performance-related characteristics and features of Sav- vio drives.

5.1Internal drive characteristics

	ST9300603SS	ST9146803SS
	ST9300503SS	ST9146703SS
	ST9300403SS	ST9146603SS
Drive capacity	300	146.8	Gbytes (formatted, rounded off value)
Read/write data heads	4	2
Bytes per track	656,985	656,985	Bytes (average, rounded off values)
Bytes per surface	74,915	74,915	Mbytes (unformatted, rounded off value)
Tracks per surface (total)	113,829	113,829	Tracks (user accessible)
Tracks per inch	190,000	190,000	TPI (average)
Peak bits per inch	1,458,000	1,458,000	BPI
Areal density	252	252	Gbit/in2
Internal data rate	1578 - 850	1578 - 850	Mbits/sec (variable with zone)
Disc rotation speed	10k	10k	rpm
Avg rotational latency	3.0	3.0	msec

5.2Seek performance characteristics

See Section 12.4.1, "SAS physical interface" on page 58 and the SAS Interface Manual (part number 100293071) for additional timing details.

5.2.1Access time

		Including controller overhead1, 2		Not including controller overhead1,2
		(msec)		(msec)
		Read	Write	Read	Write
Average	Typical3,4	4.2	4.6	4.0	4.4
Single track	Typical3,4	0.4	0.7	0.4	0.7
Full stroke	Typical3,4	7.68	8.15	7.48	7.95

1.Execution time measured from receipt of the Command to the Response.

2.Assumes no errors and no sector has been relocated.

3.Typical access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as measured on a representative sample of drives.

4.Access time = controller overhead + average seek time and applies to all data transfer commands. Access to data = access time + latency time.

10	Savvio 10K.3 SAS Product Manual, Rev. G

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Seagate ST9300603SS manual Performance characteristics, Internal drive characteristics, Seek performance characteristics

Contents

Savvio 10K.3 SAS ST9300603SSST9300503SS ST9146803SSST9146703SSST9300403SS ST9146603SS Product ManualPage 5.0 Performance characteristics Contents1.0 Seagate Technology support services 2.0 Scope 6.0 Reliability specifications8.0 About FIPS 9.0 About self-encrypting drives 10.0 Defect and error management11.0 Installation 12.0 Interface requirementsSavvio 10K.3 SAS Product Manual, Rev. G Savvio 10K.3 SAS Product Manual, Rev. G List of Figures Page 1.0 Seagate Technology support services SEAGATE ONLINE SUPPORT and SERVICESSelf-Encrypting Drive SED 2.0 ScopeModel Number FIPS 140-2 Level 2 certified3.1.1 Electromagnetic compatibility 3.0 Applicable standards and reference documentation3.1 Standards 3.1.1.1 Electromagnetic susceptibilityAustralian C-Tick 3.1.2 Electromagnetic complianceElectromagnetic compliance for the European Union Korean MICReference documents 3.1.3 European Union Restriction of Hazardous Substances RoHS4.0 General description 4.1 Standard features 4.2 Media description4.5 Formatted capacities 4.3 Performance4.4 Reliability 4.6 Programmable drive capacity4.7 Factory-installed options 5.2 Seek performance characteristics 5.0 Performance characteristics5.1 Internal drive characteristics 5.2.1 Access time5.2.3 General performance characteristics 5.3 Start/stop time5.2.2 Format command execution time for 512-byte sectors minutes ST9300603SS5.4 Prefetch/multi-segmented cache control 5.5 Cache operation5.5.1 Caching write data 5.5.2 Prefetch operation 6.1.1 Recoverable Errors 6.0 Reliability specifications6.1 Error rates 6.1.2 Unrecoverable Errors6.1.4 Interface errors 6.2 Reliability and service6.1.3 Seek errors 6.2.2 Preventive maintenanceControlling S.M.A.R.T Fully-enabled delay6.2.4 S.M.A.R.T Performance impactTable 1 Temperature Log Page 0Dh Predictive failures6.2.5 Thermal monitor Parameter Code6.2.6.1 DST failure definition 6.2.6.2.1 State of the drive prior to testing6.2.6 Drive Self Test DST 6.2.6.2 ImplementationExtended test Function Code 010b 6.2.6.2.3 Short and extended testsShort test Function Code 001b 6.2.6.2.4 Log page entries6.2.7 Product warranty ShippingProduct repair and return information 7.0 Physical/electrical specifications 7.1 AC power requirements7.2 DC power requirements Savvio 10K.3 SAS Product Manual, Rev. G 3 See +12V current profile in Figure General DC power requirement notes 7.2.2 Power sequencing7.2.1 Conducted noise immunity 7.2.3 Current profiles Figure 17. Current profiles for 300GB modelsFigure 18. Current profiles for 146GB models 7.3 Power dissipation 300 GB models in 3 Gbit operation300GB models in 6 Gbit operation 146GB models in 3 Gbit operation 7.4 Environmental limits 146GB models in 6 Gbit operation7.4.1 Temperature a. Operating 7.4.4 Shock and vibration 7.4.2 Relative humidity7.4.3 Effective altitude sea level a. Operating Figure 23. Location of the HDA temperature check pointPackage size Packaged/product weight7.4.4.1 Shock Drop height7.4.4.2 Vibration a. Operating-normal Figure 24. Recommended mounting7.4.7 Acoustics 7.4.5 Air cleanliness7.4.6 Corrosive environment 7.4.8 Electromagnetic susceptibility7.5 Mechanical specifications Figure 25. Mounting configuration dimensionsin mm in mm 8.0 About FIPS PurposeLevel 2 security 9.1 Data encryption 9.2 Controlled access9.0 About self-encrypting drives 9.2.1 Admin SP9.5 Data bands 9.3 Random number generator RNG9.4 Drive locking 9.2.3 Default password9.9 Supported commands 9.7 Authenticated firmware download9.8 Power requirements 9.6 Cryptographic erase10.0 Defect and error management 10.1 Drive internal defects/errors10.2 Drive error recovery procedures Maximum recovery time per 10.3 SAS system errorsTable 4 Read and write retry count maximum recovery times Maximum recovery time per10.4 Background Media Scan 10.5 Media Pre-Scan10.6 Deferred Auto-Reallocation 10.7 Idle Read After Write 11.0 Installation 11.1 Drive orientation11.2 Cooling Figure 28. Air flow11.3 Drive mounting 11.4 GroundingK x X = F 15lb = 67N 12.1.1 task management functions 12.1 SAS features12.0 Interface requirements SAS task management functions supported12.2 Dual port support 12.3 SCSI commands supported Supported commandsSupported commands Supported commands Supported commands 12.3.2 Mode Sense data 12.3.1 Inquiry dataSavvio inquiry data Bytes4. Changeable values CHG = Changeable bits indicates if default value is changeable3. Current values Savvio 10K.3 SAS Product Manual, Rev. GTable 9 Mode Sense data for 300GB drives Table 10 Mode Sense values for 146GB drives Savvio 10K.3 SAS Product Manual, Rev. G12.4 Miscellaneous operating features and conditions Miscellaneous featuresMiscellaneous status 12.4.1 SAS physical interface Figure 29. Physical interfaceFigure 30. SAS device plug dimensions C OF DATUM BFigure 31. SAS device plug dimensions detail TO DATUM A12.4.4 Electrical description 12.4.2 Physical characteristics12.4.3 Connector requirements 12.4.5 Pin descriptions12.4.6 SAS transmitters and receivers 12.5 Signal characteristics12.4.7 Power 12.5.1 Ready LED OutLED drive signal 12.6 SAS-2 Specification compliance12.7 Additional information 12.5.2 Differential signalsSavvio 10K.3 SAS Product Manual, Rev. G Numerics IndexPage Page See also cooling Page Seagate Technology LLC