Overview



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.

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.

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.




Specification


Technical Description: Western Digital 4TB Se internal hard drive 7200 RPM 64 MB 3.5" Serial ATA III

Features
Mean time between failures (MTBF):Statistical model used to indicate product/mechanism reliability; expressed in hours and percentage of duty cycle. This number (in hours) does not indicate the mean time before failure for a single unit/mechanism.
800000 h
Native Command Queuing (NCQ):
Yes
Start/stop cycles:
600000
SMART technology:
Yes
Storage drive buffer size:
64 MB
Interface:Interface ports to connect pieces of equipment. USB (Universal Serial Bus) has become the most popular wired interface to connect peripherals. USB 2.0 supports speeds up to 480 Mbit/s (USB 1: 12 Mbit/s). The interface FireWire is also known as the IEEE 1394 standard. Enhanced IDE (EIDE)is sometimes referred to as Fast ATA, Fast IDE or ATA-2.
Serial ATA III
HDD size:
3.5"
HDD speed:
7200 RPM
HDD capacity:
4 TB

Operational conditions
Non-operating shock:Environmental requirements for optimal protection from impact in non-operating mode
300 G
Operating shock:Environmental requirements for optimal protection from impact in operating mode
65 G
Storage temperature (T-T):The minimum and maximum temperatures at which the product can be safely stored.
-40 - 70 °C
Operating temperature (T-T):The minimum and maximum temperatures at which the product can be safely operated.
5 - 55 °C

Other features
Sustained data rate:
171 MB/s
Linux operating systems supported:8 RT. Linux (9.4, 9.5), Red Hat Enterprise Linux 5.0 (supported with a pre-built package); SUSE Linux (10.3, 11.0, 11, 11.1, 11.2), Fedora (9, 9.0, 10, 10.0, 11.0, 11, 12, 12.0), Ubuntu (8.04, 8.04.1, 8.04.2, 8.10, 9.04, 9.10, 10.04), Debian (5.0, 5.0.1, 5.0.2, 5.0.3)
Yes
Mac operating systems supported:Mac operating systems e.g. OS X can be used with the device.
Yes
Windows operating systems supported:Windows vesions wich can be used with the device.
Yes
Connectivity technology:
Wired
Data transfer rate:Rate at which data can be transferred. Usually expressed in units per second. May vary with network configurations.
6 Gbit/s
Product colour:
Black

Packaging data
Quantity per pack:The amount in each pack.
1 pc(s)

Power
Operating voltage:Defines the range of operating voltages available
5 / 12 V
Power consumption (idle):
8.1 W
Power consumption (read):
9.5 W
Power consumption (write):
9.5 W

Weight & dimensions
Weight:Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
750 g
Depth:The distance from the front to the back of something.
147 mm
Height:The measurement of the product from head to foot or from base to top.
26.1 mm
Width:The measurement or extent of something from side to side.
101.6 mm


Product details


WD4000F9YZ Western Digital

Western Digital 4TB Se internal hard drive 7200 RPM 64 MB 3.5" Serial ATA III

£149.99 and

SKUWD4000F9YZ

Western Digital 4TB Se internal hard drive 7200 RPM 64 MB 3.5" Serial ATA III

Quick Code: Q470731 MPN: WD4000F9YZ

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