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.
INTERFACE
SATA 6 Gb/s
WIDTH/HEIGHT
3.5-inch/1-inch
ROTATIONAL SPEED
7200 RPM
CAPACITIES
2 TB to 4 TB
MODEL NUMBERS
WD4000F9YZ
WD3000F9YZ
WD2000F9YZ
Note:
Not all products may
be available in all regions of
the world.
Product Benefits
A pedigree in enterprise
WD, one of the storage industry’s
pioneers and long-time leaders,
has a rich history of manufacturing
reliable enterprise storage at an
affordable cost. Built on a
time-tested, multi-generation
platform, with over 28 million
terabytes of enterprise-class
storage shipped*, WD understands
reliable high-quality products are
the backbone of your datacenter
investment.
Designed for quality and reliability
All drives undergo at least 5 million
hours of functional testing, and over
20 million hours of additional testing
under actual workloads in actual
server and storage systems.
*Quantity shipped reflected as of March 2013.
Dual processor
Twice the processing power to
maximize performance.
RAFF
™
rotational vibration
cancellation technology
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.
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.
Applications
Ideal for bulk cloud storage, replicated environments, content delivery networks (CDNs), large-scale network attached storage (NAS), backup and archiving.