Western Digital WD4001F9YZ 4000GB SATA Hard Drive

Western Digital Se WD4001F9YZ 4TB 3.5in 6Gbps 7.2K RPM Enterprise SATA HDD – Brand New

Western Digital Se WD4001F9YZ 4000GB 3.5″ 6.0 Gbps 7200 RPM Enterprise Serial ATA Hard Disk Drive – Brand New

WD Se™ Datacenter Capacity HDD

Optimal Storage for NAS and Scale-Out Architectures
WD’s Se hard drives provide an ideal solution for scale-out datacenters, delivering a cost-effective combination of performance, reliability, and workload capability while maintaining the hardiness of a true enterprise-class design. 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.

Product Benefits

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

Dual processor
Twice the processor to maximize performance.

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

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.

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

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 (TYLER)br>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.

Advanced Format (AF)
Technology adopted by WD and other drive manufacturers as one of multiple ways to continue growing hard drive capacities. AF is a more efficient media format that enables increased areal densities.