Seagate ST373207LW/LC, ST3146707LW/LC, ST3300007LW/LC manual 4 S.M.A.R.T, Controlling S.M.A.R.T

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Seagate Cheetah 10K.7 SCSI disc drives support all four hot plugging cases. Provision shall be made by the system such that a device being inserted makes power and ground connections prior to the connection of any device signal contact to the bus. A device being removed shall maintain power and ground connections after the disconnection of any device signal contact from the bus (see SFF-8451 Specification for SCA-2 Unshielded Connections).

It is the responsibility of the systems integrator to assure that no hazards from temperature, energy, voltage, or ESD potential are presented during the hot connect/disconnect operation.

All I/O processes for the SCSI device being inserted or removed shall be quiescent. All SCSI devices on the bus shall have receivers that conform to the SPI-3 standard.

If the device being hot plugged uses single-ended (SE) drivers and the bus is currently operating in low voltage differential (LVD) mode, then all I/O processes for all devices on the bus must be completed, and the bus qui- esced, before attempting to hot plug. Following the insertion of the newly installed device, the SCSI host adapter must issue a Bus Reset, followed by a synchronous transfer negotiation. Failure to perform the SCSI Bus Reset could result in erroneous bus operations.

The SCSI bus termination and termination power source shall be external to the device being inserted or removed.

End users should not mix devices with high voltage differential (HVD) drivers and receivers and devices with SE, LVD, or multimode drivers and receivers on the same SCSI bus since the common mode voltages in the HVD environment may not be controlled to safe levels for SE and LVD devices (see ANSI SPI-3).

The disc drive spindle must come to a complete stop prior to completely removing the drive from the cabinet chassis. Use of the Stop Spindle command or partial withdrawal of the drive, enough to be disconnected from the power source, prior to removal are methods for insuring that this requirement is met. During drive insertion, care should be taken to avoid exceeding the limits stated in Section 6.4.4, "Shock and vibration" in this manual.

5.2.4S.M.A.R.T.

S.M.A.R.T. is an acronym for Self-Monitoring Analysis and Reporting Technology. This technology is intended to recognize conditions that indicate drive degradation and is designed to provide sufficient warning of a failure to allow data back-up before an actual failure occurs.

Note. The firmware will monitor specific attributes for degradation over time but cannot predict instanta- neous drive failures.

Each attribute monitors a specific set of conditions in the operating performance of the drive, and the thresh- olds are optimized to minimize “false” predictions.

Controlling S.M.A.R.T.

The operating mode of S.M.A.R.T. is controlled by the DEXCPT bit and the PERF bit of the “Informational Exceptions Control Mode Page” (1Ch). The DEXCPT bit is used to enable or disable the S.M.A.R.T. process. Setting the DEXCPT bit will disable all S.M.A.R.T. functions. When enabled, S.M.A.R.T. will collect on-line data as the drive performs normal read/write operations. When the PERF bit is set, the drive is considered to be in “On-line Mode Only” and will not perform off-line functions.

The process of measuring off-line attributes and saving data can be forced by the Rezero Unit command. Forc- ing S.M.A.R.T. will reset the timer so that the next scheduled interrupt will be two hours.

The drive can be interrogated by the host to determine the time remaining before the next scheduled measure- ment and data logging process will occur. This is accomplished by a log sense command to log page 0x3E. The purpose is to allow the customer to control when S.M.A.R.T. interruptions occur. As described above, forc- ing S.M.A.R.T by the Rezero Unit command will reset the timer.

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

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Contents Cheetah 10K.7 Scsi Page Cheetah 10K.7 Scsi Page Revision status summary sheet Page Contents Installation Defect and error managementSeagate Technology support services Interface requirementsList of Figures Viii Cheetah 10K.7 Scsi Product Manual, Rev. D Cheetah 10K.7 Scsi family drive ST3300007LC shown ScopeCheetah 10K.7 Scsi Product Manual, Rev. D Standards Applicable standards and reference documentationElectromagnetic compatibility Electromagnetic susceptibilityEuropean Union Restriction of Hazardous Substances RoHS Electromagnetic complianceReference documents Cheetah 10K.7 Scsi Product Manual, Rev. D General description Media characteristics Standard featuresFormatted capacities PerformanceReliability Options factory installed Factory installed accessoriesAccessories user installed Programmable drive capacityScsi performance characteristics visible to user Performance characteristicsInternal drive characteristics transparent to user Format command execution time minutes Access timeGeneralized performance characteristics Ultra320 ScsiCache operation Start/stop timePrefetch/multi-segmented cache control Caching write data Prefetch operation Cheetah 10K.7 Scsi Product Manual, Rev. D Error rates Reliability specificationsRecoverable Errors Unrecoverable ErrorsSeek errors Reliability and servicePreventive maintenance Annualized Failure Rate AFRControlling S.M.A.R.T 4 S.M.A.R.TReporting control Performance impactDetermining rate Predictive failuresDrive Self Test DST Parameter Code DescriptionDST Failure Definition State of the drive prior to testingImplementation Invoking DSTShort test Function Code 001b Product warrantyExtended test Function Code 010b Log page entriesProduct repair and return information ShippingDC power requirements Physical/electrical specificationsAC power requirements ST3146707 SE mode LVD mode 3 12 V Current profile Power sequencingConducted noise immunity Typical ST3300007 drive +12 V current profile Typical ST3146707 drive +12 V current profile Typical ST373207 drive +12 V current profile ST3300007 Power dissipationST3146707 ST373207 Environmental limits TemperatureRelative humidity Effective altitude sea levelShock Shock and vibrationRecommended mounting Corrosive environment Air cleanlinessVibration Acoustics Mechanical specificationsLW mounting configuration dimensions LC mounting configuration dimensions Drive internal defects Defect and error managementDrive error recovery procedures Page Scsi systems errors Media Pre-Scan Background Media ScanConfigure drive options InstallationDrive ID/option select header FormattingJ6 jumper header J5 jumper header on LW models only J2 option select header on LW models only RES Function descriptionCooling Drive orientationGrounding Drive mountingCheetah 10K.7 Scsi Product Manual, Rev. D Scsi interface messages supported Interface requirementsGeneral description 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 Condition/feature supported by Scsi bus conditions and miscellaneous features supportedPhysical interface Synchronous data transferSynchronous data transfer periods supported 2 REQ/ACK offsetDC cable and connector PCB Scsi interface physical description Scsi interface cable requirements Mating connectorsCable requirements LC ModelsMating connectors for LC model drives Mating connectors for LW 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 Multimode-SE and LVD alternatives LVD output characteristicsElectrical description Single-ended drivers/receivers LVD input characteristicsGeneral cable characteristics Cables for low voltage differential drivers/receivers LC drives Terminator requirements Terminator powerLW drives Disc drive Scsi timing Disc drive Scsi timing Drive activity LED Spindle status Command status LED statusInternet MySeagate Reseller.seagate.com Seagate Technology support servicesPresales Support Technical SupportData Recovery Services Warranty ServiceData Recovery Services Authorized Service Centers Toll-free support numbers FAX services-All Europe toll callCall center Presales and Technical Support Warranty Service Asia/Pacific support services Publication feedback survey Cheetah 10K.7 Scsi Product Manual, Rev. D Numerics SymbolsPage 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.
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