Original URL: http://www.theregister.co.uk/2009/04/21/wd_greener_2tb/

WD gives 2TB drive a green spin

How many to offset a Chinese power station

By Chris Mellor

Posted in Storage, 21st April 2009 13:18 GMT

WD has greened up its freshly minted 2TB SATA drive by focussing on reducing power consumption.

With a 64MB cache and dual processors, WD says its WD RE4-GP hard drives have as much as a 25 per cent performance improvement over the previous generation. It says the drives reduce power consumption by up to 50 per cent over currently available competitors’ drives, and run cool as well. They are rated at 1.2 million hours MTBF (mean time before failure) in high duty cycle environments and provide, WD says, enterprise-class reliability.

The new drives also have increased areal density. There are no details about this, although the delivered capacity is still rated at 2TB, actually 2,000,398MB.

WD says the power savings come from improvements in power-conserving technologies - IntelliSeek, IntelliPark, and IntelliPower, which varies the spin speed — deliver up to an average 25 percent reduction in power consumption over its previous generation of WD RE-GP drive. The drives monitor the disk access work load and automatically invoke idle mode whenever possible, to further reduce power consumption by up to an additional 40 per cent, with recovery time from idle mode being less than one second.

The WD RE4-GP 2 TB hard drive, model WD2002FYPS, needs 6.8 watts for reading and writing data, 3.7 watts in idle mode, 0.80 watts on standby and in sleep mode. It is available now from select e-tailers and distributors with an MSRP of $329. ®