Seagate ST1000NM0033 Differential signals, SAS-2 Specification Compliance, Additional Information

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Table 19 LED drive signal

STATE

TEST CONDITION

OUTPUT VOLTAGE

 

 

 

LED off, high

0 V ≤ VOH ≤ 3.6 V

-100 μA < IOH < 100 μA

LED on, low

IOL = 15 mA

0 ≤ VOL ≤ 0.225 V

11.5.2Differential signals

The drive SAS differential signals comply with the intra-enclosure (internal connector) requirements of the SAS standard.

Table 20 defines the general interface characteristics.

Table 20 General interface characteristics

CHARACTERISTIC

UNITS

1.5GB/S

3.0GB/S

6.0GB/S

 

 

 

 

 

Bit rate (nominal)

Mbaud

1,500

3,000

6,000

 

 

 

 

 

Unit interval (UI)(nominal)

ps

666.6

333.3

166.6

 

 

 

 

 

Impedance (nominal, differential )

ohm

100

100

100

 

 

 

 

 

Transmitter transients, maximum

V

± 1.2

± 1.2

± 1.2

 

 

 

 

 

Receiver transients, maximum

V

± 1.2

± 1.2

± 1.2

 

 

 

 

 

11.6SAS-2 SPECIFICATION COMPLIANCE

Seagate SAS-2 drives are entirely compatible with the latest SAS-2 Specification (T10/1760-D) Revision 16.

The most important characteristic of the SAS-2 drive at 6Gb/s is that the receiver is capable of adapting the equalizer to optimize the receive margins. The SAS-2 drive has two types of equalizers:

1.A Decision Feedback Equalizer (DFE) which utilizes the standard SAS-2 training pattern transmitted during the SNW-3 training gap. The DFE circuit can derive an optimal equalization characteristic to compensate for many of the receive losses in the system.

2.A Feed Forward Equalizer (FFE) optimized to provide balanced receive margins over a range of channels bounded by the best and worst case channels as defined by the relevant ANSI standard.

11.7ADDITIONAL INFORMATION

Please contact your Seagate representative for SAS electrical details, if required.

For more information about the Phy, Link, Transport, and Applications layers of the SAS interface, refer to the Seagate SAS Interface Manual, part number 100293071.

For more information about the SCSI commands used by Seagate SAS drives, refer to the Seagate SCSI Commands Reference Manual, part number 100293068.

CONSTELLATION ES.3 SAS PRODUCT MANUAL, REV. B

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Contents Constellation ES.3 SAS Document Revision History Contents Installation Contents Seagate Technology Support Services Scope SEDApplicable Standards and Reference Documentation StandardsTaiwanese Bsmi Australian C-TickKorean KCC European Union Restriction of Hazardous Substances RoHSChina Restriction of Hazardous Substances RoHS Directive Reference DocumentsGeneral Description Media Description Standard FeaturesPerformance Formatted Capacities FACTORY-INSTALLED OptionsReliability Programmable Drive CapacityFormat command execution time for 512-byte sectors minutes Performance CharacteristicsInternal Drive Characteristics General performance characteristicsPREFETCH/MULTI-SEGMENTED Cache Control START/STOP TimeCache Operation Caching write data Prefetch operationError Rates Reliability SpecificationsReliability and Service Hot plugging the drive 3 S.M.A.R.TReporting control Controlling S.M.A.R.TPerformance impact Determining rateDST failure definition State of the drive prior to testingDrive Self Test DST ImplementationShort test Function Code 001b Invoking DSTShort and extended tests Extended test Function Code 010bStorage Product warrantyShipping Product repair and return informationPowerchoicetm Power Management PHYSICAL/ELECTRICAL SpecificationsPowerChoice modes AC Power Requirements DC Power Requirements4TB drive DC power requirements 3TB drive DC power requirements 2TB drive DC power requirements 1TB drive DC power requirements Power sequencing General DC power requirement notesConducted noise immunity Current profiles TB model current profilesTB model current profiles TB model current profiles TB model current profiles 4TB models in 3Gb operation Power Dissipation4TB models in 6Gb operation 3TB models in 3Gb operation 3TB models in 6Gb operation2TB models in 3Gb operation 2TB models in 6Gb operation1TB models in 3Gb operation 1TB models in 6Gb operationImage is for reference only, may not represent actual drive Temperature a. OperatingEnvironmental Limits Relative humidityShock and vibration ShockRecommended mounting Acoustics Air cleanlinessVibration Corrosive environmentMechanical Specifications 1TBSeagate Enterprise SED PurposeValidation Program Security LevelData Encryption Controlled AccessAbout SELF-ENCRYPTING Drives Random Number Generator RNGSupported Commands Authenticated Firmware DownloadPower Requirements Data BandsDrive Internal DEFECTS/ERRORS Defect and Error ManagementDrive Error Recovery Procedures SAS System Errors Background Media ScanIdle Read After Write Media PRE-SCANDeferred AUTO-REALLOCATION Protection Information PISetting and determining the current Type Level Identifying a Protection Information driveDrive Orientation InstallationCooling Drive Mounting X = F 15lb = 67NGrounding Task management functions SAS FeaturesInterface Requirements Task management responsesScsi Commands Supported Supported commands Supported commands Supported commands Inquiry data Constellation ES.3 inquiry dataMode Sense data Block Descriptor CHG 9C 0A 9D 0F FF FF FF FF FF FF FF FF DEF 12 1400 FF FF 00 00 FF FF FF FF 80 20 00 00 00 00 00 Miscellaneous Operating Features and Conditions Miscellaneous featuresSAS physical interface Datum B Section C C Section a a Electrical description Physical characteristicsConnector requirements Pin descriptionsSAS transmitters and receivers PowerSignal Characteristics Ready LED OutSAS-2 Specification Compliance Differential signalsAdditional Information Index Page KCC See also cooling Page Seagate Technology LLC
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ST1000NM0033 specifications

The Seagate ST1000NM0033 is a high-performance hard disk drive (HDD) designed specifically for enterprise applications. With a storage capacity of 1TB, it offers a balance of performance, reliability, and efficiency, making it suitable for data centers, cloud storage, and server environments. Built with Seagate's robust engineering, the ST1000NM0033 is ideal for handling heavy workloads and intensive data processes.

One of the standout features of this HDD is its rotational speed of 7200 RPM. This speed allows for quick data access and fast read/write operations, which is essential for data-intensive applications. The drive is equipped with 64MB of cache, further enhancing its efficiency by speeding up data retrieval for frequently accessed files.

Another key characteristic of the ST1000NM0033 is its SATA interface, which typically facilitates high-bandwidth data transfer rates. With a sustained data transfer rate of up to 160 MB/s, it ensures that large files, such as videos and databases, can be transferred swiftly, minimizing downtime and improving overall system performance.

The drive's durability is backed by Seagate’s Advanced Format technology, which enhances the format compatibility, storage efficiency, and reliability of the drive through improved error correction. With a mean time between failures (MTBF) rating of 1 million hours, users can trust the STA0033 to provide exceptional longevity and stability, critical in enterprise environments where data integrity is paramount.

Furthermore, the ST1000NM0033 supports various workload types due to its design optimized for multi-user environments. The drive can handle up to 180TB/year workload rate, making it capable of supporting applications with high data demand.

Environmentally, Seagate ensures that this model is energy efficient, contributing to reduced power consumption in enterprise settings. The drive operates effectively within a specified temperature range, ensuring that it remains operational under different environmental conditions.

In summary, the Seagate ST1000NM0033 is an excellent choice for businesses seeking a reliable, high-capacity HDD with robust performance features. Its combination of speed, efficiency, durability, and capacity positions it as a strong contender in the enterprise storage solutions market. With its extensive feature set, it continues to cater to the demanding needs of modern data centers and enterprise applications.
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