Seagate joins the terabyte disk club

New 1TB 3.5 inch hard drives come with advanced power-saving technology

Seagate is a launching a pair of 1TB capacity disks with advanced power-saving technology. This could save up to a quarter of the power consumed by normal drives. It has also announced a ruggedized 2.5-inch drive holding 80G bytes. Hitachi was first to market with a 1T byte drive a month or so ago.

The Barracuda 7200.11 is a 3.5-inch format drive, spinning at 7,200rpm and holds 500GB, 750GB or 1TB of data. Its sustained data rate of 105MB/s is the highest ever attained for a desktop drive and it is also the world's quietest desktop drive. Conceptually the 1TB drive is four 250GB platters using Seagate's 2nd generation perpendicular recording technology. The interface is serial ATA (SATA) II running at 3GB/s

The Barracuda ES.2 is the enterprise version of the drive with improved mean time before failure of 1.2 million hours compared to the consumer version's 1 million hours. It has both SATA and SAS (serial attached SCSI) interfaces and comes in 250GB, 500GB, 750GB and 1TB configuration.

Seagate has added a power-saving technology, branded PowerTrim, to these drives. Their electronics are managed by new firmware and hardware that monitors what the drive is doing and switches off power to unused parts of the drive electronics. If the drive is reading then separate read electronics can be switched off. Ditto for the write electronics if the drive is reading data. If there is no data being transferred then the cache and memory can be switched off and/or refresh cycles delayed.

This micro-control of power within the drive yields an average power saving of about 25 percent over a drive without the technology. That translates into quite a substantial power saving in an array of such drives. It generates a 125GB/watt rating compared to the previous ES generation's 80GB/watt.

The drives come with either SATA (for consumers and enterprises) or SAS (for enterprises) interfaces and have an MFRP of US$399, which is the same as competitor Hitachi GST's 1TB drive.

Hitachi's 5-platter 1TB drive does not come with an SAS interface making it less attractive to enterprise customers.

Seagate has also announced the ES25.2, a hardened 80GB, 2.5-inch, SATA drive built to operate in rough environments with hostile temperature, vibration, humidity, shock and altitude conditions. It can withstand more vibration than any other stand-alone drive and comes with a 5-year warranty.

Join the Good Gear Guide newsletter!

Error: Please check your email address.

Struggling for Christmas presents this year? Check out our Christmas Gift Guide for some top tech suggestions and more.

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Chris Mellor

Techworld.com

Most Popular Reviews

Follow Us

Best Deals on GoodGearGuide

Shopping.com

Latest News Articles

Resources

GGG Evaluation Team

Kathy Cassidy

STYLISTIC Q702

First impression on unpacking the Q702 test unit was the solid feel and clean, minimalist styling.

Anthony Grifoni

STYLISTIC Q572

For work use, Microsoft Word and Excel programs pre-installed on the device are adequate for preparing short documents.

Steph Mundell

LIFEBOOK UH574

The Fujitsu LifeBook UH574 allowed for great mobility without being obnoxiously heavy or clunky. Its twelve hours of battery life did not disappoint.

Andrew Mitsi

STYLISTIC Q702

The screen was particularly good. It is bright and visible from most angles, however heat is an issue, particularly around the Windows button on the front, and on the back where the battery housing is located.

Simon Harriott

STYLISTIC Q702

My first impression after unboxing the Q702 is that it is a nice looking unit. Styling is somewhat minimalist but very effective. The tablet part, once detached, has a nice weight, and no buttons or switches are located in awkward or intrusive positions.

Latest Jobs

Shopping.com

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?