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Internal Hard Drives




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  • 900 GB

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Model: WD9001BKHG
The 2.5-inch WD Xe SAS drives offer the powerful combination of enterprise-class performance and reduced power consumption required for demanding high-performance computing and mission-critical environments.
$589.99



Highlights

Ultra-fast SAS storage.

WD Xe delivers 6 Gb/s transfer rates, best-in-class maximum sequential data rate of 204 MB/s and outstanding random I/O performance.

Low power consumption.

WD Xe SAS drives use less power resulting in, lower cooling costs and lower total cost of ownership (TCO) while increasing capacity and reliability.

Industry’s highest reliability rating.

With a field-tested 2 million hour MTBF, this high performance drive is perfect for enterprise server and enterprise storage applications.



Overview


The WD Xe SAS hard drives provide up to 600 GB of high performance storage suitable for both enterprise server and enterprise storage applications. The supersonic 6 Gb/s SAS interface enables optimum data reliability, availability and scalability. The small form-factor, 70 percent smaller than 3.5-inch drives, allows more system airflow resulting in lower cooling costs.

In an environment where space and power are limited, the WD Xe drives are an effective solution for high performance computing solutions such as power-constrained data centers, database transaction processing, and rack, tower, and blade servers.

Designed for quality and reliability.
Datacenter drives undergo at least 5 million hours of functional testing, and over 20 million hours of comprehensive Interoperability testing in an extensive array of server and storage systems. Please see the product AVL list for more info.
3.5-inch performance adapter.
WD Xe comes pre-mounted in a 3.5-inch performance adapter, providing easy installation into legacy 3.5-inch server and storage system slots, while optimizing the drive’s thermal management efficiency. (HKHG models only)
Dual processor.
Twice the processing power to maximize performance.
Dual port, full duplex connectivity.
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.
Dual actuator technology.
Twice the processing power to maximize performance.
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.
Multi-axis shock sensor.
Automatically detects the subtlest shock events and compensates to protect the data.
Lower your power consumption.
The 2.5-inch WD Xe SAS drive requires less than 8 watts to operate. Its small form-factor allows for more system airflow resulting in lower cooling costs.

The 3.5-inch WD Xe SAS drive delivers up to 67% lower power versus 3.5-inch 15,000 RPM drives, which can result in substantially lower total cost of ownership (TCO) while increasing capacity and reliability.
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.
RAID-specific, time-limited error recovery (TLER).
Prevents drive fallout caused by the extended hard drive error-recovery processes common to desktop drives.
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.
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.
Environmentally responsible.
In addition to being RoHS compliant, these drives are built with halogen reduced components.
The WD advantage.
WD puts our datacenter products through extensive Functional Integrity Testing (F.I.T) prior to any product launch. This testing ensures our products consistently meet the high quality and reliability standards of the WD brand. Following a FIT test the Enterprise System Group (ESG) testing validates interoperability with HBAs, operating systems and drivers to ensure an even greater level of quality, reliability and peace of mind.

WD also has a detailed Knowledge Base with helpful articles and software utilities. Our customer support lines have longer operational hours to ensure you get the help you need when you need it. Our toll-free customer support lines are here to help or you can access our WD Support site for additional details.
Self-encrypting Drive (SED) Option.
SAS Drive: Optional secure model for encrypting drives – Utilizing an AES 256 bit encryption engine for Crypto erase capability, WD supports the industry standard implementations of both the SCSI Sanitize command with Crypto Erase and the Trusted Computing Group (TCG) command set.*

* SED drives may require TCG-compliant host or controller support. SED drives may not be available in all countries.





Reviews
Specifications
Product Specifications
InterfaceSAS 6 Gb/s
Performance Specifications
Rotational Speed10,000 RPM (nominal)
Buffer Size32 MB
Transfer Rates
Transfer Rate (Buffer To Disk)204 MB/s (Sustained)
Physical Specifications
Capacity900 GB
Form Factor2.5 Inch
User Sectors Per Drive1,758,174,768
Physical Dimensions
English
Height0.59 Inches
Depth3.94 Inches
Width2.75 Inches
Weight0.51 Pounds
Metric
Height15 mm
Depth100 mm
Width69.85 mm
Weight0.23 kg
Environmental Specifications
Shock
Operating Shock (Read)65G, 2 ms
Non-operating Shock300G, 2 ms
Acoustics
Idle Mode30 dBA (average)
Seek Mode 037 dBA (average)
Temperature (English)
Operating41° F to 131° F
Non-operating-40° F to 158° F
Temperature (Metric)
Operating5° C to 55° C
Non-operating-40° C to 70° C
Electrical Specifications
Current Requirements
Power Dissipation
Read/Write7.80 Watts
Idle5.30 Watts


System Requirements

WDxxxHKHG models: 2.5-inch hard drive mounted in a 3.5-inch performance adapter.

*Receive free standard shipping (UPS Ground) on purchases over $100 (excluding tax and shipping charges) at the WD Store. Offer not valid for addresses in Hawaii or Alaska. The WD Store reserves the right to change or discontinue this offer at any time.