With all of the talk these days in the storage industry swirling
around solid-state drives (SSDs), it's easy to forget that advances are
being made in the hard disk drive (HDD) market as well for consumers. That fact
is even more pertinent today with the announcement of the long-awaited update
to Western Digital's line of 10,000 RPM Raptor HDDs: the 300
The new VelociRaptor takes an untraditional approach for a
desktop HDD with its 2.5" drive design. The 2.5" form factor allows
the drive to be smaller, lighter, and more power efficient than its 3.5"
But what good is a 2.5" HDD in a desktop system which
typically accommodates 3.5" HDDs? Western Digital addressed that issue by affixing
the VelociRaptor to an "IcePack" heatsink which allows the drive to
fit into a standard 3.5" drive bay.
"Demand for ever-higher PC performance continues to
increase and WD is the leader in this category with the WD Raptor. We created
WD VelociRaptor hard drives to lead PC enthusiasts into the next era of PC and
Mac storage performance and satisfy their insatiable thirst for computing
speed," said Western Digital's Tom McDorman. "The new WD VelociRaptor
delivers the greatest performance and reliability of all SATA hard drives
currently on the market."
When it comes to performance, Western Digital promises a 30%
increase in performance through its SATA 3Gb/sec interface, 1.4 million MTBF, and
Rotary Acceleration Feed Forward (RAFF) to improve performance in
The 300 GB VelociRaptor will be available in Alienware's
high-performance ALX desktop system later this month, while end-users can
purchase the drive in mid-May for
For full performance specs on the amazing VelociRaptor,
there is no shortage of reviews highlighting the new drive. You can read
reviews from PC
PC and The Tech Report.
quote: It's still pretty impressive for a 2.5'' drive.
quote: why end-users can purchase the drive in mid-May for $299.99.
quote: Raid5 is easy to calc...need 3 drives min, one is kept as parity.
quote: ...where s is the sum of the capacities of n drives used. In RAID 5, the yield is s * (n - 1)/n. Using 1
quote: The difference between RAID 4 and RAID 5 is that in interim data recovery mode, RAID 5 might be slightly faster than RAID 4:
quote: Therefore,the usable capacity of a RAID 5 array is (N-1) * Smin, where N is the total number of drives in the array and Smin is the capacity of the smallest drive in the array.