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WD Se
Datacenter Capacity HDD


Optimal storage for NAS and scale-out architectures.



    Options:
  • 4 TB

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Model: WD4000F9YZ
WD’s SE hard drive is an ideal solution for scale-out datacenters, delivering a cost-effective combination of performance, reliability, and workload capability, while maintaining the robustness of a true enterprise-class design. design. The SE is best suited for bulk cloud storage, replicated environments, content delivery networks (CDNs), Small, and Medium Business (SMB) network attached storage (NAS), backup and archiving.

All WD datacenter storage devices are designed from the ground up to deliver optimal performance and maximum data integrity while running 24x7x365 in demanding multi-slot environments.

$299.99



Highlights

Cost effective enterprise-class storage.

Get the right blend of performance, reliability and capacity and keep your total cost of ownership low.

24x7x365 reliability.

Choose the storage foundation specifically designed for SMB to high-end NAS and large-scale datacenter replication environments running 24x7x365.

Maximum capacity for hyperscale environments.

Build a massive data footprint with capacities up to 4 TB - 144 TB per square foot.



Overview


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.
Dual processor.
Twice the processing power to maximize performance.
RAFF rotational vibration cancellation technology.
Enhanced Rotary Acceleration Feed Forward (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.
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.
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.
Ideal for:
The Se is best suited for bulk cloud storage, replicated environments, content delivery networks (CDNs), SMB network attached storage (NAS), backup and archiving.




Specifications
Product Specifications
InterfaceSATA 6 Gb/s
Performance Specifications
Rotational Speed7,200 RPM (nominal)
Buffer Size64 MB
Load/unload Cycles600,000 minimum
Transfer Rates
Buffer To Host (Serial ATA)6 Gb/s (Max)
Physical Specifications
Capacity4 TB
Form Factor3.5 Inch
User Sectors Per Drive7,814,037,168
Performance Specifications
Target Performance
MTBF1,000,000 hours
MTBF for 1-5 Bay NAS1,200,000 hours
Physical Dimensions
English
Height1.028 Inches
Depth5.787 Inches
Width4.00 Inches
Weight1.66 Pounds
Metric
Height26.1 mm
Depth147 mm
Width101.6 mm
Weight0.75 kg
Power Management
Read (Peak Watts)9.50 Watts
Write (Peak Watts)9.10 Watts
Environmental Specifications
Shock
Operating Shock (Read)65G, 2 ms
Non-operating Shock300G, 2 ms
Acoustics
Idle Mode31 dBA (average)
Seek Mode 034 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/Write9.50 Watts
Idle8.10 Watts
Compatibility
Operating System
CompatibilityWindows/Mac


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