Seagate ST336854FC, ST3146954FC, ST373554FC manual See +12V current profile in Figure

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Table 3:	DC power requirements for ST373554FC drives

								1 Gbit mode		2 Gbit mode		4 Gbit mode

							Notes	(Amps)	(Amps)	(Amps)	(Amps)	(Amps)	(Amps)

Voltage								+5V	+12V [2]	+5V	+12V [2]	+5V	+12V [2]

Regulation							[5]	±5%	±5% [2]	±5%	±5% [2]	±5%	±5% [2]

							[1] [7]	0.62	0.57	0.66	0.56	0.69	0.57
Avg idle current DCX							[1] [7]	0.62	0.57	0.66	0.56	0.69	0.57

Maximum starting current
(peak DC) DC						3σ	[3]	0.83	1.88	0.94	1.85	0.77	1.71
(peak AC) AC						3σ	[3]	0.98	4.08	1.11	4.08	1.17	2.94

Delayed motor start (max) DC						3σ	[1] [4]	0.54	0.03	0.58	0.04	0.70	0.04

Peak operating current:
							[1] [6]	0.79	1.01	0.90	0.66	0.76	0.79
Typical DCX							[1] [6]	0.79	1.01	0.90	0.66	0.76	0.79
Maximum DC						3σ	[1]	0.82	1.03	1.18	0.67	0.77	0.80
Maximum (peak) DC						3σ		1.27	2.82	1.24	2.98	1.30	2.82

Table 4:	DC power requirements for ST336854FC drives

								1 Gbit mode		2 Gbit mode		4 Gbit mode

							Notes	(Amps)	(Amps)	(Amps)	(Amps)	(Amps)	(Amps)

Voltage								+5V	+12V [2]	+5V	+12V [2]	+5V	+12V [2]

Regulation							[5]	±5%	±5% [2]	±5%	±5% [2]	±5%	±5% [2]

							[1] [7]	0.62	0.43	0.66	0.43	0.69	0.43
Avg idle current DCX							[1] [7]	0.62	0.43	0.66	0.43	0.69	0.43

Maximum starting current
(peak DC) DC						3σ	[3]	0.83	1.59	0.93	1.58	0.98	1.59
(peak AC) AC						3σ	[3]	0.99	3.43	1.11	3.30	1.16	3.36

Delayed motor start (max) DC						3σ	[1] [4]	0.55	0.03	0.58	0.03	0.62	0.03

Peak operating current:
							[1] [6]	0.77	0.87	0.81	0.86	0.84	0.87
Typical DCX							[1] [6]	0.77	0.87	0.81	0.86	0.84	0.87
Maximum DC						3σ	[1]	0.81	0.89	0.85	0.88	0.88	0.88
Maximum (peak) DC						3σ		1.26	2.64	1.31	2.54	1.35	2.59

[1]Measured with average reading DC ammeter. Instantaneous +12V current peaks will exceed these val- ues. Power supply at nominal voltage. N (number of drives tested) = 6, 35 Degrees C ambient.

[2]For +12 V, a –10% tolerance is allowed during initial spindle start but must return to ±5% before reaching 14,904 RPM. The ±5% must be maintained after the drive signifies that its power-up sequence has been completed and that the drive is able to accept selection by the host initiator.

[3]See +12V current profile in Figure 2.

[4]This condition occurs when the Motor Start option is enabled and the drive has not yet received a Start Motor command.

[5]See paragraph 6.2.1, "Conducted noise immunity." Specified voltage tolerance includes ripple, noise, and transient response.

[6]Operating condition is defined as random 8 block reads at 225 I/Os per second for ST3146954FC models

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

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Contents Cheetah 15K.4 FC ST3146954FC ST373554FC ST336854FCPage Cheetah 15K.4 FC March 07/15/05 Revision status summary sheetRev. A Rev. B DraftPage 5.0 Reliability specifications Contents4.0 Performance characteristics 6.0 Physical/electrical specifications9.0 Interface requirements 7.0 Defect and error management8.0 Installation 10.0 Seagate Technology support services Cheetah 15K.4 FC Product Manual, Rev. B List of Figures Page 1.0 Scope Figure 1. Cheetah 15K.4 FC family disc driveCheetah 15K.4 FC Product Manual, Rev. B 2.1.1 Electromagnetic compatibility 2.0 Applicable standards and reference documentation2.1 Standards 2.1.1.1 Electromagnetic susceptibilityAustralian C-Tick 2.1.2 Electromagnetic complianceElectromagnetic compliance for the European Union Korean MICFibre Channel Interface Manual Specification for Acoustic Test Requirement and Procedures2.2 Reference documents Cheetah 15K.4 FC Product Manual, Rev. B 3.0 General description 3.1 Standard features 3.2 Media description3.5 Formatted capacities 3.3 Performance3.4 Reliability 3.5.1 Programmable drive capacity3.8 User-installed accessories 3.6 Factory-installed accessories3.7 Factory-installed options 4.2 Seek performance characteristics 4.0 Performance characteristics4.1 Internal drive characteristics 4.2.1 Access time4.3 Start/stop time 4.2.2 Format command execution time minutesGeneral performance characteristics 4.4 Prefetch/multi-segmented cache control4.5 Cache operation 4.5.1 Caching write data 4.5.2 Prefetch operationCheetah 15K.4 FC Product Manual, Rev. B Cheetah 15K.4 FC Product Manual, Rev. B 5.1.1 Recoverable Errors 5.0 Reliability specifications5.1 Error rates 5.1.2 Unrecoverable Errors5.1.4 Interface errors 5.2 Reliability and service5.1.3 Seek errors 5.2.2 Preventive maintenanceControlling S.M.A.R.T 5.2.3 Hot plugging the drive5.2.4 S.M.A.R.T Maximum processing delay Fully-enabled delayPerformance impact On-line only delay5.2.6 Drive Self Test DST Parameter CodeDescription 5.2.6.1 DST failure definition5.2.6.2.2 Invoking DST 5.2.6.2.1 State of the drive prior to testing5.2.6.2 Implementation 5.2.6.2.3 Short and extended tests5.2.6.2.5 Abort 5.2.7 Product warranty5.2.6.2.4 Log page entries ShippingProduct repair and return information 6.2 DC power requirements 6.0 Physical/electrical specifications6.1 AC power requirements 3 See +12V current profile in Figure 6.2.1 Conducted noise immunity General DC power requirement notes6.2.2 Power sequencing 6.2.3 Current profilesFigure 2. Typical ST3146954FC drive, 2 Gbit, +12V current profile Figure 3. Typical ST3146954FC drive, 2 Gbit, +5V current profileFigure 4. Typical ST373554FC drive +12V current profile Figure 5. Typical ST373554FC drive +5V current profileFigure 6. Typical ST336854FC drive +12V current profile Figure 7. Typical ST336854FC drive +5V current profile6.3 Power dissipation ST3146954FCST373554FC Power wattsST336854FC 6.4.2 Relative humidity 6.4 Environmental limits6.4.1 Temperature a. Operating 6.4.4.1 Shock 6.4.3 Effective altitude sea level a. Operating6.4.4 Shock and vibration Drop height Packaged/product weightPackage size Figure 12. Recommended mounting6.4.6 Acoustics 6.4.5 Air cleanliness6.4.4.2 Vibration a. Operating-normal 6.4.7 Electromagnetic susceptibility6.5 Mechanical specifications Figure 13. Mounting configuration dimensions7.2 Drive error recovery procedures 7.0 Defect and error management7.1 Drive internal defects/errors Cheetah 15K.4 FC Product Manual, Rev. B 7.3 FC-AL system errors 7.4 Background Media Scan 7.4.1 Media Pre-Scan8.0 Installation 8.1 Drive ID/option selectionFigure 14. Physical interface 8.2 LED connectionsFigure 15. LED indicator connector 8.4 Cooling 8.2.1 J6 connector requirements8.3 Drive orientation K x X = F 15lb = 67N 8.5 Drive mounting8.6 Grounding 9.0 Interface requirements 9.1 FC-AL features9.1.1 Fibre Channel link service frames Fibre Channel SCSI FCP task management functions 9.1.2 Fibre Channel task management functions9.1.3 Fibre Channel task management responses Task nameBytes 9.1.4 Fibre Channel port loginNPort login PLOGI payload NPort Login Accept ACC payload 9.1.5 Fibre Channel port login accept9.1.6 Fibre Channel Process Login Process Login PLRI payloadProcess Login Accept ACC payload 9.1.7 Fibre Channel Process Login Accept9.1.8 Fibre Channel fabric login Fabric Login FLOGI payload9.1.9 Fibre Channel fabric accept login Fabric Login Accept ACC payload9.2 Dual port support 9.1.10 Fibre Channel Arbitrated Loop optionsCommand code 9.3 SCSI commands supportedTable 16 Supported commands Command nameTable 16 Supported commands continued Command name 3 Reference Mode Sense command 1Ah for mode pages supported 9.3.1 Inquiry data 9.3.2 Mode Sense data4. Changeable values CHG = Changeable bits indicates if default value is changeable3. Current values Definitions SAV = Current saved valueMODE SENSE 10 BYTE HEADER DATA Cheetah 15K.4 FC Product Manual, Rev. B Cheetah 15K.4 FC Product Manual, Rev. B Feature or condition 9.4 Miscellaneous operating features and conditionsMiscellaneous features Miscellaneous status9.5.1.1 Physical description 9.5.1 Physical characteristics9.5 FC-AL physical interface FC-AL SCA device connector dimensions 9.5.2 Connector requirementsFeatures Figure 20. J6 connector dimensions9.5.3 Electrical description 9.5.4 Pin descriptions9.5.5 FC-AL transmitters and receivers 9.5.6 Power9.5.7 Fault LED Out Figure 21. FC-AL transmitters and receivers9.5.10 Motor start controls 9.5.9 Enable port bypass signals9.5.8 Active LED Out Normal command activity9.5.11.1 Parallel Enclosure Services Interface ESI 9.5.11 SEL6 through SEL0 ID linesALPA SettingArbitrated loop physical address ALPA values SEL ID9.5.12 Device control codes 9.6 Signal characteristicsTTL input characteristics 9.6.19.6.4 FC Differential input 9.6.2 LED driver signals9.6.3 FC Differential output Bit Time Vout mv XMIT EyeVin mv Receive eye diagramEye diagram data values 941 ps 659 ps 376 psCheetah 15K.4 FC Product Manual, Rev. B Seagate Service Centers 10.0 Seagate Technology support servicesOnline services InternetWarranty Service Customer Service OperationsUSA/Canada/Latin America support services Seagate Service Centers Data Recovery ServicesFAX services-All Europe toll call European support servicesAfrica/Middle East support services Warranty ServiceAsia/Pacific support services Index NumericsDownload microcode with offsets and save mode 7 front panel 38 FS 49, 50, 52 function pin descriptions 66 PN 49 mounting 46 holes 46 orientationsNN 49 Self-Monitoring Analysis and Reporting Technology 9 UI 50, 51 unformatted SMP = 1 in Mode Select command 63 SO 49LED driver 72 single-unit shipping pack kit 10 SMART 9 Page Seagate Technology LLC