Seagate ST3146707LW/LC, ST3300007LW/LC, ST373207LW/LC manual Drive orientation, Cooling

Page 60

8.2Drive orientation

The balanced rotary arm actuator design of the drive allows it to be mounted in any orientation. All drive perfor- mance characterization, however, has been done with the drive in horizontal (discs level) and vertical (drive on its side) orientations, and these are the two preferred mounting orientations.

8.3Cooling

The host enclosure must dissipate heat from the drive. You should confirm that the host enclosure is designed to ensure that the drive operates within the temperature measurement guidelines described in Section 6.4.1. In some cases, forced airflow may be required to keep temperatures at or below the temperatures specified in Section 6.4.1.

If forced air is necessary, possible air-flow patterns are shown in Figure 21. The air-flow patterns are created by fans either forcing or drawing air as shown in the illustrations. Conduction, convection, or other forced air- flow patterns are acceptable as long as the temperature measurement guidelines of Section 6.4.1 are met.

Note. Air flows in the direction shown (back to front) or in reverse direction (front to back)

Above unit

Under unit

Note. Air flows in the direction shown or in reverse direction (side to side)

Figure 21. Air flow (suggested)

Above unit

Under unit

50

Cheetah 10K.7 SCSI Product Manual, Rev. D

Page 59 Page 61
Image 60
Page 59 Page 61
Contents Cheetah 10K.7 Scsi Page Cheetah 10K.7 Scsi Page Revision status summary sheet Page Contents Defect and error management InstallationSeagate Technology support services Interface requirementsList of Figures Viii Cheetah 10K.7 Scsi Product Manual, Rev. D Scope Cheetah 10K.7 Scsi family drive ST3300007LC shownCheetah 10K.7 Scsi Product Manual, Rev. D Applicable standards and reference documentation StandardsElectromagnetic compatibility Electromagnetic susceptibilityElectromagnetic compliance European Union Restriction of Hazardous Substances RoHSReference documents Cheetah 10K.7 Scsi Product Manual, Rev. D General description Standard features Media characteristicsPerformance ReliabilityFormatted capacities Factory installed accessories Options factory installedAccessories user installed Programmable drive capacityPerformance characteristics Internal drive characteristics transparent to userScsi performance characteristics visible to user Access time Format command execution time minutesGeneralized performance characteristics Ultra320 ScsiStart/stop time Prefetch/multi-segmented cache controlCache operation Caching write data Prefetch operation Cheetah 10K.7 Scsi Product Manual, Rev. D Reliability specifications Error ratesRecoverable Errors Unrecoverable ErrorsReliability and service Seek errorsPreventive maintenance Annualized Failure Rate AFR4 S.M.A.R.T Controlling S.M.A.R.TPerformance impact Reporting controlDetermining rate Predictive failuresParameter Code Description Drive Self Test DSTState of the drive prior to testing DST Failure DefinitionImplementation Invoking DSTProduct warranty Short test Function Code 001bExtended test Function Code 010b Log page entriesShipping Product repair and return informationPhysical/electrical specifications AC power requirementsDC power requirements ST3146707 SE mode LVD mode Power sequencing Conducted noise immunity3 12 V Current profile Typical ST3300007 drive +12 V current profile Typical ST3146707 drive +12 V current profile Typical ST373207 drive +12 V current profile Power dissipation ST3300007ST3146707 ST373207 Temperature Environmental limitsRelative humidity Effective altitude sea levelShock and vibration ShockRecommended mounting Air cleanliness VibrationCorrosive environment Mechanical specifications AcousticsLW mounting configuration dimensions LC mounting configuration dimensions Defect and error management Drive error recovery proceduresDrive internal defects Page Scsi systems errors Background Media Scan Media Pre-ScanInstallation Configure drive optionsDrive ID/option select header FormattingJ6 jumper header J5 jumper header on LW models only J2 option select header on LW models only Function description RESDrive orientation CoolingDrive mounting GroundingCheetah 10K.7 Scsi Product Manual, Rev. D Interface requirements General descriptionScsi interface messages supported Scsi interface commands supported Page Page Page Inquiry Vital Product data Mode Sense data Mode Sense 10 Byte Header Data 00 ae 00 10 00 00 00 08 11 17 73 30 00 00 02 00 ae 00 10 00 00 00 08 08 8b b9 98 00 00 02 Scsi bus conditions and miscellaneous features supported Condition/feature supported bySynchronous data transfer Physical interfaceSynchronous data transfer periods supported 2 REQ/ACK offsetDC cable and connector PCB Scsi interface physical description Mating connectors Scsi interface cable requirementsCable requirements LC ModelsMating connectors for LW model drives Mating connectors for LC model drivesRight-angle to Pcba connectors Scsi daisy chain interface cabling for LW drives Nonshielded 68-pin Scsi device connector used on LW drives Nonshielded 80-pin Scsi SCA-2 connector, used on LC drives GND +DBP1 Charge Active LED OUT 4 REQ +REQ Active LED OUT 4 LVD output characteristics Electrical descriptionMultimode-SE and LVD alternatives LVD input characteristics General cable characteristicsSingle-ended drivers/receivers Cables for low voltage differential drivers/receivers Terminator requirements Terminator power LW drivesLC drives Disc drive Scsi timing Disc drive Scsi timing Spindle status Command status LED status Drive activity LEDSeagate Technology support services Internet MySeagate Reseller.seagate.comPresales Support Technical SupportWarranty Service Data Recovery Services Authorized Service CentersData Recovery Services FAX services-All Europe toll call Call center Presales and Technical Support Warranty ServiceToll-free support numbers Asia/Pacific support services Publication feedback survey Cheetah 10K.7 Scsi Product Manual, Rev. D Symbols NumericsPage Page PCB Page Cheetah 10K.7 Scsi Product Manual, Rev. D

ST3300007LW/LC, ST373207LW/LC, ST3146707LW/LC specifications

Seagate's ST3146707LW/LC, ST373207LW/LC, and ST3300007LW/LC are part of the company's renowned line of hard disk drives (HDDs), specifically designed for enterprise and high-performance computing environments. With their reliability and performance, these drives have become popular choices for data centers and critical applications requiring extensive storage capabilities.

One of the standout features of these models is their capacity to handle large volumes of data. The ST3146707LW/LC has a capacity of 146GB, while the ST373207LW/LC offers 73GB, and the ST3300007LW/LC comes with a substantial 300GB. These capacities make them well-suited for applications that require not only high storage space but also rapid access to data.

In terms of performance, these drives utilize a 10,000 RPM spindle speed, which significantly enhances data access times and overall performance. The combination of fast rotational speeds with Seagate's advanced caching algorithms allows for swift data retrieval, making these drives ideal for environments where speed is crucial.

These HDDs also employ the SCSI (Small Computer System Interface) interface, which promises high data transfer rates and reliability in enterprise-level applications. The Ultra320 SCSI interface can support transfer rates up to 320 MB/s, ensuring that the drives can efficiently communicate with other system components.

Another key technology featured in these models is Seagate's Adaptive Error Correction technology, which enhances data integrity and reliability. This feature helps in the detection and correction of errors that can occur during data transfer, reducing the risk of data loss.

Performance consistency is critical in enterprise environments, and these drives are built to endure the demands of 24/7 operation. They are designed with robust mechanisms to withstand temperature fluctuations, shock, and vibrations commonly found in data center settings.

In summary, the Seagate ST3146707LW/LC, ST373207LW/LC, and ST3300007LW/LC hard drives exemplify advanced features and technologies tailored for enterprise storage solutions. With significant capacities, impressive spindle speeds, SCSI connectivity, and reliability-focused technologies, these drives remain a valuable asset for businesses relying on stable and high-performance data storage.
Top Page Image Contents