Seagate 1TB Constellation.2 SAS 2.5" Internal Hard Drive with FIPS 140-2 Secure Encryption (OEM)

Seagate 1TB Constellation.2 SAS 2.5" Internal Hard Drive with FIPS 140-2 Secure Encryption (OEM)

Seagate 1TB Constellation.2 SAS 2.5" Internal Hard Drive with FIPS 140-2 Secure Encryption (OEM)

B&H # SEST910642SS MFR # ST91000642SS

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Product Highlights

  • 1TB Capacity
  • 2.5" Form Factor
  • SAS 6 Gb/s Interface
  • 7200 rpm
  • 64MB Cache
  • 1.4 Million Hours MTBF
  • Enterprise-class 24x7 Operation
  • Annualized Failure Rate of 0.62% (AFR)
  • Max. Sustained Transfer Rate: 115 MB/s
  • FIPS 140-2 Validated
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Seagate ST91000642SS overview

  • 1Description

The 1TB Constellation.2 SAS 2.5" Internal Hard Drive with FIPS 140-2 Secure Encryption (OEM) from Seagate is a high-performance high-capacity data storage drive that has been designed for environments such engineering workstations, network servers, mainframes, and supercomputers. It is also well-suited for storage-hungry business applications, storage area networks (SAN) and network-attached storage (NAS), maximum-capacity servers and blade servers, rich-media-content storage, enterprise backup and restore (D2D, virtual tape), and cloud computing.

This 2.5" drive is 15mm high and features a 1TB capacity with a SAS 6 Gb/s interface that provides maximum sustained data transfer rates of up to 115 MB/s. Its 6 Gb/s SAS interface is also backwards compatible with SAS 3 Gb/s and SAS 1.5 Gb/s. Rated for Enterprise-class, 24x7 / 8,760 hours per year of operation, the Constellation.2 also features a rotational speed of 7200 rpm which will allow quick access to your data. A 64MB cache will help to ensure uninterrupted data transfers and the drive's 1.4 million hours MTBF combined with its AFR of 0.62% and non-recoverable read error rate of 1 sector per 1015 will help to ensure that this drive has a strong operational life. Regarding data security, this drive is FIPS 140-2 validated and helps to protect sensitive but unclassified and protected class data.

Constellation.2 drives further help to enhance durability by using a dedicated load/unload zone at the outermost radius of the media to help eliminate the possibility of destroying or degrading data by landing in the data zone. The heads automatically go to the ramp load/unload when power is removed from the drove. Furthermore, an automatic shipping lock helps prevent potential damage to the heads and discs that results from movement during shipping and handling. The shipping lock disengages and the head load process begins when power is applied to the drive.

Constellation.2 drives also decode track 0 location data from the servo data embedded on each surface to help eliminate mechanical transducer adjustments and other reliability concerns. The drive also uses a high-performance actuator assembly with a low-inertia, balanced, patented, and straight-arm design that helps to provide strong performance with minimal power dissipation.

Key Advantages

Second generation 2.5", mainstream capacity, 15mm z-height, nearline enterprise drive for space-constrained data centers
SAS 6 Gb/s interface for data integrity, scalability, and fast data access
This 7200 rpm drive, has been designed for 24×7 (8,760 hours per year) operation with an MTBF of 1.4 million hours and an AFR of 0.62%
Enterprise-class firmware features and rotational vibration tolerance to help maximize system availability and performance
Low operating power (under 6.4W) and PowerChoice options for additional power savings during slow or idle periods; Workload Management technology helps systems keep drives cool
FIPS 140-2 validated drives help protect sensitive but unclassified and protected class data

Best-Fit Applications

Storage-hungry business applications
Storage area networks (SAN) and network attached storage (NAS)
Maximum-capacity servers and blade servers
Rich media content storage
Enterprise backup and restore - D2D, virtual tape
Cloud computing
In the Box
Seagate 1TB Constellation.2 SAS 2.5" Internal Hard Drive with FIPS 140-2 Secure Encryption (OEM)
  • Limited 5-Year Warranty
  • Table of Contents
    • 1Description

    Seagate ST91000642SS specs

    Drive Capacity 1.0 TB
    Cache Memory 64 MB
    Interface SAS II (6 Gb/s)
    Maximum Read Speed 115 MB/s
    Maximum Write Speed 115 MB/s
    Latency 4.2 ms
    Seek Time 8.5 ms (Read)
    9.5 ms (Write)
    Drive Type HDD
    Form Factor 2.5" (15 mm)
    Noise Level 28.0 dB (Active)
    22.0 dB (Idle)
    HDD Specs
    Spindle Speed (RPM) 7200 RPM
    Reliability / Data Integrity
    Annualized Failure Rate (AFR) 0.62 %
    Mean Time Between Failures (MTBF) 1.4 Million Hours
    Non-Recoverable Read Errors per Bits Read 1 in 1015
    Power Draw 3.85 W (Idle)
    6.4 W (Active)
    Supported Voltage 5 VDC, 12 VDC
    Operating Shock 70 G / 2.0 ms
    Storage Shock 400 G / 2.0 ms
    Operating Vibration 0.5 G / 0 to 400 Hz
    Storage Vibration 3.0 G / 0 to 500 Hz
    Operating Temperature 41 to 140°F / 5 to 60°C
    Dimensions (W x H x D) 0.6 x 2.8 x 4.0" / 15.0 x 70.1 x 100.5 mm
    Weight 0.4 lb / 0.2 kg

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