Drive Western Digital WD20EADS

Duvido disso das rpm variáveis do WD, para ver era medir por exemplo o consumo, se em acesso 'full' o consumo oscilar ou a transferência não for muito constante então terá rpm variáveis...
Mas isso seria coisa que o marketing da WD anunciaria ao 7 ventos :P para além que rapidamente colocavam a tecnologia nos discos 2.5''

a Samsung por exemplo tem bem visível que os Green são 5400rpm e perdem de peak 30 ou 35Mb/s (só vendo o valor).
Tendo em conta que nos samsung os de 7200rpm são bastante silenciosos* / pouco vibrantes e a diferença de consumo de energia é pouca, compensa na minha opinião os de 7200rpm :)


* Excepto quando começam a ficar cheios até ao bico :P
 
Cá estão as 7200RPM :D

wd-2tb-hard-drives.jpg


Surely you recall Western Digital's earlier 2TB effort, the Caviar Green -- right? While said drive was just perfect for the casual storage junkie, performance gurus know that it left something to be desired on the speed front. Thankfully, WD is looking out for that crowd too with a new pair of 7200RPM 2TB drives: the Caviar Black (shown left) and RE4 (shown right). Both four-platter drives boast 64MB of cache, a dual stage actuator, 3Gbps SATA interface and an integrated dual processor. The latter also promises 1.2 million hours MTBF, Active Power Save, a multi-axis shock sensor and a few other high-end advancements designed for enterprise users seeking long-term reliability. The pain? Try $299 for the now-available 2TB Caviar Black, while the RE4 awaits an MSRP as it's "being qualified by OEMs." Check the full release just past the break.

(...)
Clicar para expandir...
engadget
 
WD LAUNCHES HIGH-PERFORMANCE, 7200 RPM 2 TB HARD DRIVES FOR DESKTOP AND ENTERPRISE SYSTEMS

Today announced that it is now shipping desktop 7200 RPM 2 TB hard drives and is qualifying with OEMs enterprise-class hard drives based on WD's 500 gigabytes-per-platter technology. The popular family of WD Caviar Black drives, now led by the new 2 TB capacity, is perfect for gaming, high-performance desktop systems and workstations; while the WD RE4 2 TB is suited for servers, network attached storage and storage networks.

High-performance hard drives by an industry leader in performance, WD Caviar Black and WD RE4 2 TB drives combine 7200 RPM spin speed, 64 MB cache, dual stage actuator technology, SATA 3 gigabits per second (Gb/s) interface, and an integrated dual processor to deliver ultimate performance in a maximum-capacity drive.

WD Caviar Black 2 TB and WD RE4 2 TB hard drives feature the following:

  • Dual processor - Twice the processing power to maximize performance.
  • 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.
  • IntelliSeek™ - Calculates optimum seek speeds to lower power consumption, noise, and vibration.
  • 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.
  • 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.
Price and Availability
The WD Caviar Black 2 TB GB (model WD2001FASS) hard drives are available through select distributors and resellers. Manufacturer's Suggested Retail Price (MSRP) for the WD Caviar Black 2 TB drive is $299 USD. The WD RE4 2 TB (model WD2003FYYS) drive is currently being qualified by OEMs. Both drives are covered by a five-year limited warranty. More information about WD Caviar Black 2 TB desktop hard drives may be found on the company's Web site at http://www.wdc.com/en/products/Products.asp?DriveID=733 and the WD RE4 2 TB enterprise hard drives at http://www.wdc.com/en/products/Products.asp?DriveID=732.

Ai estão eles...

Fonte:http://www.wdc.com/en/company/releases/PressRelease.asp?release=18b8d283-2393-4d8d-90dd-a11f2f8ebcf1
 
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