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#Western digital 2tb internal hard drive caviar black full#
#Western digital 2tb internal hard drive caviar black series#

Pressure Sensors - Help the drive detect sudden pressure changes present in HVAC / forced ventilation environments (i.e.More on this near the end of the article. Rotary Acceleration Feed Forward (RAFF™) - I’ve got nothing.Limits the ‘hang’ experienced on a read error in order to avoid a RAIDĬontroller considering the drive dead / offline. RAID-specific time-limited error recovery (TLER) - The drive.

#Western digital 2tb internal hard drive caviar black series#

The RE4 (like all other RE series drives and the VelociRaptor) include these added features specific to their intended usage: Note this photo is of an earlier Caviar Black.īoth units in this review contain 4 500 GB platters and a different head pack. This also provides nearly instantaneous track-to-track seeks (within the range of the second actuator).

Dual Actuator Technology - This new head design treats the ‘old’ electromagnetic actuator as a coarse adjustment, with an added piezoelectric actuator providing fine tuning over an approximate 5 track width.

Here are some features unique to the new 2TB Caviar Black and RE4 series drives (translated, with pictures):

Processors - Introduced with the RE4-GP line, the additional core helps the drive keep track of the added cache and increased throughput streaming off of the head pack. Increased cache helps boost random access performance at lower spindle speeds.

64MB cache - Up from 32MB for the Caviar Black models with capacities less than 2 TB.

These drives also accelerate slower during spin-up as to Power spin-up - Lower RPM’s mean less power when trying to get to

Perpendicular Magnetic Recording (PMR) - BitsĪre aligned vertically instead of horizontally to get more packed ontoĮach platter.

Beware – this is onlyĮffective with an AHCI-enabled SATA controller. Therefore increase effective access time. Reorder groups of reads/writes to minimize overall head movement, and

Native Command Queuing (NCQ) - The drive can.

Keeping the platters more stable during reads and writes. The spindle is supported at both ends instead of only at the bottom, The heads are able to leave the ramp and float onto the spinning disk. You know how the most damage isĭone to your engine when you start it on a cold morning? This means the drive heads do not have to break stiction each and every time the drive spins up. Take an ‘exit ramp’ off of the platters instead of landing on the Ramp load technology - Previously called “IntelliPark”. Speed to make it to the data before it rotates past.

#Western digital 2tb internal hard drive caviar black full#

‘on the fly’, since the heads do not always need to be moved at full

Spindle speeds, performance drop is offset by larger caches and higher IntelliPower™ - GP drives consume less power with slower.The new 7200 RPM models shares many of the features present in prior lines: WD2001FASS (Caviar Black 2 TB) and WD2003FYYS (RE4) Overview Specs, Testing Methodology and System Setup Specifications Specs, Testing Methodology and System Setup.In this review we will explore these new features and see their impact on real world performance. These drives come backed with some exciting new technology that promises to increase performance beyond that of a simple spindle speed increase. Western Digital brings 7200RPM to two of their product lines in the form of 2TB models.