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£49.15 ex. vat

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WD Re 250GB 3.5" SATA Enterprise Hard Drive

  • Designed for 24x7 use
  • Vibration resistance & StableTrac technology
  • SATA 3Gbs / 7200rpm / 64MB cache
  • 5yr warranty

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QuickFind: 509617

Mfr part code: WD2503ABYZ

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    WD Re 250GB 3.5" SATA Enterprise Hard Drive Product Description

    Durable capacity storage for high-availability deployments
    WD Re datacenter hard drives offer up to 4 TB capacities and are available with SAS or SATA interface. With the highest error tolerance and MTBF of any capacity-optimized drive, WD Re delivers the durability and 24x7x365 reliability required in tightly packed vibration prone multi-drive systems. The combination of high-capacity, peak performance and robust design make WD Re drives ideal for heavy workload environments, cloud storage, RAID arrays, external storage arrays, data warehousing and mining applications.

    Product Benefits

    Industry's highest capacity nearline drive - Massive capacities up to 4 TB suit even the most demanding datacentre or cloud storage needs.

    Designed for heavy application Workloads -  Designed to handle up to 550 TB per year in any heavy application datacenter with the highest workload capabilities of any WD 3.5 hard drive. Up to 6 Gb/s transfer rates and sustained sequential data rates of up to 182 MB/s, deliver performance and reliability to any datacentre environment. Designed for quality and reliability With up to 1.4 million hour MTBF, this high performance drive delivers durability and the highest level of reliability for 24x7x365 operation in the most demanding storage environments.

    Vibration Protection - Enhanced RAFF Technology includes sophisticated electronics to monitor the drive and correct both linear and rotational vibration in real time. The result is a significant performance improvement in high vibration environments over the previous generation of drives.

    Dual actuator technology - A head positioning system with two actuators that improves positional accuracy over the data track(s). The primary actuator provides coarse displacement using conventional electromagnetic actuator principles. The secondary actuator uses piezoelectric motion to fine tune the head positioning to a higher degree of accuracy. (2 TB and above)

    Environmentally responsible - In addition to being RoHS compliant, these drives are built with halogen reduced components.

    Self Encrypting Drive (SED) option - Optional secure model for encrypting drives - Utilizing an AES 256 bit encryption engine for Crypto erase capability, WD supports both industry standard commands of the Sanitize Feature Set and also the Security Feature Set which utilizes the Secure Erase Unit (SEU) enhanced mode bit.*

    StableTrac - The motor shaft is secured at both ends to reduce system-induced vibration and stabilize platters for accurate tracking during read and write operations. (2 TB and above)

    Multi-axis shock sensor - Automatically detects the subtlest shock events and compensates to protect the data.
    * SED drives may require TCG-compliant host or controller support. SED drives may not be available in all countries.

    RAID-specific, time-limited error recovery (TLER) -  Prevents drive fallout caused by the extended hard drive error-recovery processes common to desktop drives.

    NoTouch ramp load technology - The recording head never touches the disk media ensuring significantly less wear to the recording head and media as well as better drive protection in transit.

    Thermal extended burn-in test -  Each drive is put through extended burn-in testing with thermal cycling to ensure reliable operation.

    Dynamic fly height technology -  Each read-write head's fly height is adjusted in real time for optimum reliability.

    Dual processor - Twice the processing power to maximize performance

    •    Interface SATA 6 Gb/s
    •    Formatted capacity 250GB
    •    User sectors per drive 490,350,672
    •    Native command queuing Yes
    •    Form factor 3.5-inch
    •    RoHS compliant yes
    •    RPM - 7200
    •    Cache - 64MB
    •    Temperature (°C) - Operating 5 to 55 - Non-operating -40 to 70

    Technical Specifications

    General

    Interface SATA 6Gb/s
    Features Native Command Queuing (NCQ), Rotary Acceleration Feed Forward (RAFF), Time-Limited Error Recovery (TLER), StableTrac, NoTouch ramp load technology, dual processor, Multi-axis shock sensor, Dynamic fly height technology, S.M.A.R.T.
    Device Type Hard drive - internal
    Capacity 250 GB
    Form Factor 3.5" x 1/3H
    Buffer Size 64 MB
    Bytes per Sector 512
    Width 101.6 mm
    Depth 147 mm
    Height 26.1 mm
    Weight 450 g

    Reliability

    Non-Recoverable Errors 1 per 10^15
    Start / Stop Cycles 600,000
    MTBF 1,200,000 hours
    Load / Unload Cycles 600,000

    Expansion & Connectivity

    Interfaces 1 x SATA 6 Gb/s
    Compatible Bays 1 x 3.5" x 1/3H - internal
    Compatible Bay 3.5" x 1/3H

    Miscellaneous

    Compliant Standards RoHS, NMB-3 Class B, CAN ICES-3 Class B

    Manufacturer Warranty

    Service & Support Details Limited warranty - 5 years
    Service & Support Limited warranty - 5 years

    Power

    Power Consumption 6.5 Watt (read) ¦ 6.4 Watt (write) ¦ 4.4 Watt (idle) ¦ 6.3 Watt (active)

    Performance

    Drive Transfer Rate 600 MBps (external)
    Internal Data Rate 128 MBps
    Spindle Speed 7200 rpm

    Environmental Parameters

    Min Operating Temperature 5 °C
    Max Operating Temperature 55 °C
    Shock Tolerance (operating) 30 g @ 2 ms
    Shock Tolerance (non-operating) 300 g @ 2 ms
    Sound Emission 27 dBA

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