Seagate ST200FM0002 5G B/ S 0G B/ S, Differential signals, General interface characteristics

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11.5.2Differential signals

The drive SAS differential signals comply with the intra-enclosure (internal connector) requirements of the SAS standard. Table 27 defines the general interface characteristics

Table 27 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.

PULSAR.2 SAS PRODUCT MANUAL, REV. C

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Contents Pulsar.2 SAS Document Revision History Revision Date Description of changesContents PHYSICAL/ELECTRICAL Specifications Defect and Error ManagementInstallation About Fips About SELF-ENCRYPTING DrivesInterface Requirements Figures Seagate Technology Support Services Scope Standard models Standard SED models Fips 140-2 LevelElectromagnetic compatibility Applicable Standards and Reference DocumentationElectromagnetic susceptibility Electromagnetic compliance Electromagnetic compliance for the European UnionAustralian C-Tick Korean KCCChina Restriction of Hazardous Substances RoHS Directive General Description 800GB 400GB 200GB 100GB 512520 524Logical Block Provisioning Thin Provisioning Product ConfigurationThin Provisioning capabilities Format Unit command PI and SED Drive ConfigurationUnmap Protection Information PI and Security SEDPerformance Characteristics Format Mode Dcrt Bit IP Bit 800GB 400GB 200GB 100GBAccess time Typical Access Time μsecPerformance Managed Life Warranty Performance Usage Based WarrantyST800FM00 ST400FM00 ST200FM00 ST100FM00 PerformanceCaching write data Unrecoverable Errors Reliability SpecificationsInterface errors SSD Percentage Used Endurance Indicator Wear LevelingGarbage Collection Write AmplificationPreventive maintenance Hot plugging the drive4 S.M.A.R.T Controlling S.M.A.R.TPerformance impact Reporting controlDetermining rate Predictive failuresTemperature Log Page 0Dh Parameter Code Description 800/400/200/100GBProduct warranty Managed Life WarrantyUsage Based Warranty Extended test Function Code 010bPHYSICAL/ELECTRICAL Specifications Power consumptionStartup power Peak operating mode800GB standard model DC power requirements 800GB 6.0GB400GB standard model DC power requirements 400GB 6.0GB200GB standard model DC power requirements 200GB 6.0GB100GB standard model DC power requirements General DC power requirement notesConducted noise immunity Power sequencingCurrent profiles Current profiles for 400GB models Current profiles for 100GB models 400GB models in 6Gb operation 800GB models in 6Gb operation200GB models in 6Gb operation 100GB models in 6Gb operation Environmental LimitsRelative humidity Temperature a. OperatingEffective altitude sea level a. Operating Shock and vibration ShockVibration Air cleanlinessCorrosive environment Weight Pounds 160 grams Weight Pounds 100 grams Purpose Validation ProgramSeagate Enterprise SED Security LevelAdmin SP Default passwordAbout SELF-ENCRYPTING Drives Locking SPData Bands Defect and Error Management SSD Physical format address descriptorDrive Error Recovery Procedures Levels of PI Setting and determining the current Type LevelIdentifying a Protection Information drive Installation Physical interfaceX = F 15lb = 67N Interface Requirements Task management functionsSAS task management functions supported Task management responsesSupported commands Format UnitPersistent Reserve Reassign Blocks Write and Verify Inquiry data Pulsar.2 Inquiry dataMode Sense data Mode Pages Mode Sense data for 800GB drivesMode Sense data for 400GB drives Mode Sense data for 200GB drives Mode Sense values for 100GB drives Miscellaneous status Miscellaneous featuresSAS physical interface Datum B Section C C Section a a Physical characteristics Connector requirementsElectrical description Pin descriptionsPower LED drive signalSAS transmitters and receivers Ready LED OutGeneral interface characteristics Differential signals5G B/ S 0G B/ S Index Index SAS See also cooling Seagate Technology LLC Americas

ST800FM0002, ST100FM0002, ST200FM0002, ST400FM0012, ST800FM0032 specifications

The Seagate ST100FM0012, ST800FM0012, ST400FM0042, ST400FM0002, and ST100FM0052 are high-performance hard drives designed for enterprise applications, offering advanced features and reliability for demanding workloads.

The ST100FM0012 is a 10TB hard drive that strikes a balance between capacity and performance. It utilizes a 7200 RPM spindle speed and features a 256MB cache, enabling efficient data access and enhanced read/write performance. With Seagate’s AgileArray technology, the ST100FM0012 is optimized for NAS environments, providing multi-drive reliability and error recovery.

The ST800FM0012 is an 8TB variant that shares many features with its 10TB counterpart but is tailored for organizations needing robust storage without reaching the highest tier of capacity. Its dual-plane rotational vibration technology minimizes vibration in multi-drive systems, ensuring sustained performance over prolonged use. This makes it an excellent choice for virtualization and data-intensive applications.

The ST400FM0042 offers a 4TB capacity suited for smaller enterprise needs or as a backup solution. With an impressive performance profile, including a 7200 RPM speed and 128MB cache, it accommodates both sequential and random workloads with ease. This drive stands out with its PowerChoice technology, allowing users to manage power consumption and reduce operational costs.

Another 4TB option, the ST400FM0002, is particularly designed for hybrid configurations, pairing the fast access of the hard drive with the speed of SSDs. It features Seagate's advanced thermal management technologies, ensuring optimal operating temperatures and performance stability during intensive workloads.

The ST100FM0052 rounds out the lineup with a 10TB capacity but is specifically aimed at surveillance applications. It supports a workload rate of 180TB per year, making it ideal for always-on recording scenarios. The drive is built with optimized firmware, which ensures enhanced performance in write-intensive environments, essential for video recording and security systems.

All these drives are equipped with Seagate’s proprietary technologies, including data recovery services and built-in data protection features, ensuring data integrity and security. The drives are built for durability, reliability, and high performance in mission-critical environments, making them indispensable components of modern enterprise data storage solutions. With capacities ranging from 4TB to 10TB, they cater to varying storage needs across different sectors.
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