Seagate ST373307FC, ST3146807FC Cheetah 10K.6 FC Product Manual, Rev. B ST336607FC, Temperature

Page 35

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

25

ST336607FC

Typical power dissipation under idle conditions is 7.89 watts (26.9 BTUs per hour).

To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 9). 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.

ST336607 FC CURRENT/POWER vs THROUGHPUT (2 gig)

Random 8 Block Reads

 

 

 

 

 

 

18.00

 

1.700

 

 

 

 

 

 

 

 

 

 

 

16.00

 

1.500

 

 

 

 

 

 

1.300

 

 

 

 

14.00

 

 

 

 

 

 

Amperes

1.100

 

 

 

 

12.00

 

 

 

 

 

0.900

 

 

 

 

10.00

 

 

 

 

 

 

 

 

 

 

 

 

0.700

 

 

 

 

8.00

 

 

 

 

 

 

 

0.500

 

 

 

 

6.00

 

0.300

 

 

 

 

4.00

 

0.0

50.0

100.0

150.0

200.0

250.0

I/Os per Second

5Volt A 12 Volt A

Watts

Power (watts)

Figure 11. ST336607FC DC current and power vs. input/output operations per second

Note. Values shown are for operation at 2 Gb, for operation at 1 Gb, reduce the +5V by.10Amps. The +12V current values are not affected by loop speed.

Figure 12. Environmental limits

Temperature and humidity values experienced by the drive must be such that condensation does not occur on any drive part. Altitude and atmospheric pressure specifications are referenced to a standard day at 58.7°F (14.8°C). Maximum wet bulb temperature is 82°F (28°C).

6.3.1Temperature

a.Operating

With cooling designed to maintain the case temperature, the drive meets all specifications over a 41°F to 131°F (5°C to 55°C) drive ambient temperature range with a maximum temperature gradient of 36°F (20°C) per hour. The enclosure for the drive should be designed such that these temperatures are not exceeded. Air flow may be needed to achieve these temperature values (see Section 8.4). Operation at HDA case tem- peratures above these values may adversely affect the drives ability to meet specifications.

The MTBF specification for the drive is based on operating in an environment that ensures that the HDA case temperatures are not exceeded. Occasional excursions to drive ambient temperatures of 131°F (55°C) or 41°F (5°C) may occur without impact to specified MTBF. Air flow may be needed to achieve these temperatures. Continual or sustained operation at HDA case temperatures above these values may degrade MTBF. The maximum allowable continuous or sustained HDA case temperature for the rated MTBF is 122°F (50°C).

To confirm that the required cooling for the HDA is provided, place the drive in its final mechanical configu- ration, perform random write/read operations. After the temperatures stabilize, measure the case tempera- ture.

The maximum allowable HDA case temperature is 60°C. Operation of the drive at the maximum case tem- perature is intended for short time periods only. Continuous operation at the elevated temperatures will reduce product reliability.

Page 34 Page 36
Image 35
Page 34 Page 36
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
Related manuals
Manual 2 pages 5.2 Kb

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.
Top Page Image Contents