Seagate ST373307FC, ST3146807FC, ST336607FC manual Differential Pecl input, Transmit eye diagram

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Cheetah 10K.6 FC Product Manual, Rev. B

61

9.6.3Differential PECL output

The serial PECL output signal voltage characteristics are provided in Table 27. The outputs are not AC coupled in order to deliver maximum signal without rise and fall time degradation. You must AC couple the receiver to isolate potentially different DC characteristics of the outputs and the receiver.

Table 27: Differential PECL output characteristics

Description

Parameter

 

 

 

 

Serial output voltage swing

600 < Vout < 1300 mV

Figure 24 provides the data output valid eye diagram relative to the bit cell time. Table 29 lists the data values.

Bit Time

Vout (mv)

XMIT Eye

Figure 24. Transmit eye diagram

9.6.4Differential PECL input

The serial PECL input signal voltage characteristics are provided in Table 28.

Table 28:

Differential PECL input characteristics

 

 

 

 

 

Description

 

Parameter

Notes

 

 

 

 

 

 

Serial input voltage swing

400 < Vin < 2.000 mV

AC coupled

Figure 25 provides the data valid eye diagram for typical and minimum requirements to recover data at the specified interface error rate. The inputs are AC coupled on the drive. Table 29 lists the data values.

Vin (mv)

Bit Time

RCV Eye

(typical)

(minimum)

Figure 25. Receive eye diagram

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Contents Page Page Page Page Revision Date Writer/Engineer Sheets Affected Revision status summary sheetPage Contents Interface requirements Defect and error managementInstallation Seagate Technology support servicesCheetah 10K.6 FC Product Manual, Rev. B Vii List of FiguresPage Cheetah 10K.6 FC family disc drive ScopeCheetah 10K.6 FC Product Manual, Rev. B Applicable standards and reference documentation Reference documents Australian C-TickKorean MIC Taiwanese BsmiCheetah 10K.6 FC disc drive General descriptionReliability Standard featuresMedia description PerformanceUnformatted and formatted capacities Factory-installed accessoriesFactory-installed options User-installed accessoriesCheetah 10K.6 FC Product Manual, Rev. B Format command execution time in minutes Performance characteristicsInternal drive characteristics Seek performance characteristics Access timeCache operation General performance characteristicsStart/stop time Prefetch/multi-segmented cache controlCaching write data Prefetch operation Reliability specifications Service philosophy Reliability and servicePreventive maintenance Service lifePerformance impact 7 S.M.A.R.TControlling S.M.A.R.T Predictive failures MillisecondsReporting control Determining rateShort and extended tests State of the drive prior to testingImplementation Invoking DSTShipping Product warrantyLog page entries AbortGeneral DC power requirement notes Physical/electrical specificationsAC power requirements DC power requirements+5V +12V Power sequencingConducted noise immunity Current profilesTypical ST373307FC drive +12V current profile Typical ST3146807FC drive +5V current profile Typical ST373307FC drive +5V current profile ST373307FC Power dissipation ST3146807FCCheetah 10K.6 FC Product Manual, Rev. B ST336607FC TemperatureShock Relative humidityEffective altitude sea level Shock and vibrationPackage size Packaged/product weight Drop height Recommended mounting Acoustics Air cleanlinessCheetah 10K.6 FC Product Manual, Rev. B Vibration Mounting configuration dimensions Mechanical specificationsDrive error recovery procedures Defect and error managementDrive internal defects/errors Maximum recovery time per Read retry Maximum recovery time per Write retryFC-AL system errors Read and write retry count maximum recovery timesLED connections InstallationDrive ID/option selection Cooling 1 J6 connector requirementsDrive Front Drive orientationAir flow Drive mountingGrounding Fibre Channel task management functions FC-AL featuresFibre Channel link service frames Interface requirementsNPort login Plogi payload Bytes Fibre Channel port loginProcess Login Plri payload Fibre Channel Process LoginFibre Channel Process Login Accept NPort Login Accept ACC payload BytesFabric Login Flogi payload Bytes Fibre Channel fabric loginAccept or NPort Login when sending frames to an initiator Fabric Login Accept ACC payload BytesOption Supported Fibre Channel Arbitrated Loop optionsDual port support FC-AL options supportedSupported commands Command code Command name Command code Supported Command name Supported commandsRead descriptor mode Cheetah 10K.6 FC Product Manual, Rev. B Bytes Data hex Mode Sense dataCheetah 10K.6 FC Product Manual, Rev. B Inquiry data Cheetah 10K.6 FC inquiry dataCheetah 10K.6 FC Product Manual, Rev. B DEF DEF CHG Cheetah 10K.6 FC Product Manual, Rev. B Miscellaneous status Miscellaneous operating features and conditionsMiscellaneous features Supported Feature or conditionPhysical description Physical characteristicsPart description Positions Part number Features Connector requirementsFC-SCA pin descriptions Pin Signal name Signal typePin descriptions Active LED Out PowerFault LED Out FC-AL transmitters and receivers11 SEL6 through SEL0 ID lines Enable port bypass signalsMotor start controls Parallel Enclosure Services Interface ESI Arbitrated loop physical address Alpa values SettingSetting Hex Dec Device control codes Signal characteristicsTTL input characteristics LED driver signalsDifferential Pecl input Transmit eye diagramLink rate GHz Eye diagram data valuesTechnical Support Seagate Technology support services Online ServicesAutomated Services Presales SupportEuropean Support Services Customer Service CSOUSA/Canada/Latin America Support Services Call Center Toll-free Direct dial Africa/Middle East Support ServicesAsia/Pacific Support Services Cheetah 10K.6 FC Product Manual, Rev. B Index FC-AL Cheetah 10K.6 FC Product Manual, Rev. B Plogi Cheetah 10K.6 FC Product Manual, Rev. B Cheetah 10K.6 FC Product Manual, Rev. B
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ST336607FC, ST373307FC, ST3146807FC specifications

The Seagate ST373307FC, ST3146807FC, and ST336607FC are robust hard disk drives designed for enterprise environments where reliability and performance are critical. Each model offers distinct features suited to various data storage needs, reflecting Seagate's commitment to innovation in storage technology.

The ST373307FC is a 73GB Fibre Channel hard drive that operates at 15,000 RPM, making it exceptionally fast for read and write operations. This drive employs a 4GB cache, enhancing its performance by allowing quicker access to frequently used data. With a 3.5-inch form factor, the ST373307FC is built for high-density environments, delivering reliable access to data. Its Fibre Channel interface supports high-speed connections, essential for data-intensive applications like databases and virtualization.

Next in line, the ST3146807FC offers a capacity of 146GB, also operating at 15,000 RPM. This drive features an 8GB cache, which significantly improves its data transfer rates, making it ideal for transactional workloads. The ST3146807FC is engineered to minimize latency and maximize throughput, ensuring that enterprises can access critical data swiftly and efficiently. Additionally, its rugged construction is designed to withstand the demands of continuous operation, providing peace of mind for businesses with strict uptime requirements.

Lastly, the ST336607FC has a substantial storage capacity of 300GB and shares the 15,000 RPM operational speed that characterizes this high-performance line. With a similar 8GB cache as the ST3146807FC, it offers excellent performance for read-intensive and write-heavy applications. The ST336607FC is also designed with enhanced thermal management features, supporting cooler operations in densely packed server environments. This model is particularly suited for applications such as data warehousing and online transaction processing, where speed and reliability are paramount.

Each of these drives utilizes advanced technologies like Native Command Queuing (NCQ), which optimizes the order of read and write requests. These features, combined with Seagate's reputation for durability and performance, make the ST373307FC, ST3146807FC, and ST336607FC excellent choices for enterprise applications requiring high-speed data access and exceptional reliability. In environments where data integrity and uptime are critical, these drives provide the robust performance necessary to meet demanding storage needs.
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