Seagate Barracuda ES.2 - 1TB 7200RPM 512n SAS 3Gbit/sec 16MB Cache 3.5" Enterprise Class Hard Drive - ST31000640SS


Warranty1 Year Warranty
AvailabilityYes - Ships in 1 to 2 Days
ManufacturerSeagate Technology
SeriesSeagate BarraCuda ES.2
UPC Code836367003077

Product Specs

Product Specs
Capacity1 TB
Spindle Speed7200 RPM Fluid Dynamic (FDB) Motor
Cache Buffer16 MB Multi-Segmented
Advanced FormatNo - 5xxn Native (Bytes per Sector: 512, 520, 524, 528)
Form Factor3.5 Inch Internal Hard Drive
InterfaceSAS-1 3Gbit/sec (Generation 1)
Interface Speed3Gbits/sec - Data Transfer Rate (max) Buffer to Host
Data Transfer Rateup to 116MB/sec Host to/from Drive (Sustained)
Interface ConnectorSAS (Single 29-Pin SFF-8482 Connector)
Interface NoteDual Interface Ports
Recording TechnologyPerpendicular Magnetic Recording (PMR) Technology
Life Expectancy1.2 Million Hours MTBF (Mean Time Before Failures) / 8760 Power on Hours per year (24x7)
Workload Rating0.73% AFR (Annualized Failure Rate) / 250 Avg on/off Cycles per year
Shock ResistanceOperating: 63Gs (2ms) / Non Operating: 300Gs (2ms)
EncryptionNo - Standard Model
Rohs CompliantYes
Dimensions(L x W x H) 5.78 in. x 4.0 in. x 1.02 in.
ClassificationEnterprise Class Drives

Key Features

  • Capacity's up to 1TB
  • Built for 24/7 (always-on) Nearline Reliability
  • 7200 RPM Rotational Speed Motor
  • Low Power Consumption
  • Embedded Servo Design Technology
  • Supports up to 32 Initiators
  • Multi-Segmented Caching Technology
  • Dynamic Spindle Brake Technology
  • Seagate PowerTrim Technology
  • State-of-the-Art Cache and On-the-Fly Error-Correction Algorithms
  • Dedicated Head Landing Zone
  • Full-Track Multiple Sector Transfer Capability
  • Perpendicular Magnetic Recording Technology
  • Thermal Monitoring and Reporting Technology
  • Rotational Vibration Technology
  • Dual Stage Actuator (DSA) Technology
  • Balance Technology to Support Multiple Drives in a System
  • Zone bit Recording (ZBR) Technology
  • Whisper Quiet with Fluid Dynamic Bearing (FDB) Motors

Seagate BarraCuda ES.2 Hard Drives

The Seagate Barracuda ES.2 drive uses second-generation Seagate perpendicular recording technology to provide up to one terabyte of storage in a single, 4-platter hard drive. This 7200-RPM drive with best-in-class reliability and rotational vibration tolerance was developed for 24x7 availability in high-density, Tier 2 storage applications. The drive’s integrated workload management feature aids in drive cooling during periods of prolonged activity. The integrated PowerTrim technology optimizes power consumption during operation and idle without any host interaction or performance loss. The Barracuda ES.2 drive comes with in-drive data integrity protection guaranteed through Seagate IOEDC/IOECC technology and is available with a choice of either SATA or SAS interfaces for convenient system initiators. SAS offers improved performance over SATA due in part to the dual processors, hardware sequential streaming, the 2.4 GHz SAS ASIC data rate and the SAS clock rate of 75 MHz. 

The SAS interface allows Barracuda ES.2 drives to be freely attached to any SAS host in single- or dual-ported configurations and provides full-duplex support, with two active data channels, to as many as 16 concurrent initiators.

    The Seagate Advantage

  • 1-TB capacity and second-generation perpendicular recording technology provide 33 percent more storage than the previous highest-capacity nearline drive while substantially improving value in $/GB and GB/W.
  • Highest-reliability 7200-RPM drive with best-in-class rotational vibration tolerance to maintain performance in densely packed, multi-drive system designs.
  • Proprietary Seagate internal data protection features from a trusted source, backed by a 5-year limited warranty.
  • Industry’s only nearline SAS drive provides 135 percent average performance boost over SATA drives and superior data integrity with full IOECC/IOEDC.

    Enabling New Opportunities

  • Seagate has applied its unparalleled enterprise technology and manufacturing expertise to deliver a 7200-RPM drive that meets the needs of 24x7, multi-drive, nearline applications.
  • The Barracuda ES.2 drive now makes SAS available for seamless migration of aging Tier 1 transactional data to Tier 2 nearline storage.
  • With breakthrough capacity enabled by perpendicular recording technology, Barracuda ES.2 drives ensure maximum cost-effectiveness for capacity-intensive storage applications.

   Key Features and Benefits

  • Specifically designed for Tier 2 nearline applications, with one terabyte of second-generation perpendicular recording available on a single, four-platter drive.
  • The industry’s highest-reliability 7200-RPM drive, designed for 24x7 operation.
  • Seagate PowerTrim technology dynamically optimizes power consumption by improving GB/watt by 55 percent over prior generation of Barracuda ES drives..
  • Best-in-class rotational vibration tolerance provides unrivalled performance in high spindle-density systems.
  • Available with SATA or SAS interfaces.
  • Full internal IOEDC/IOECC data integrity protection on SAS models.
  • Dual-ported, multi-initiator SAS provides full-duplex compatibility and a 135 percent average performance improvement over SATA.

   Best-Fit Applications

  • Storage-hungry business applications
  • Network attached storage (NAS)
  • Storage area networks (SAN)
  • Maximum capacity servers
  • Rich media content storage—audio, video, image
  • Reference and compliance data storage
  • Enterprise backup and restore—D2D, virtual tape
  • Collaboration—email, messaging
  • Infrastructure—Web, print, file
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