Oct 20, 2004

Seagate and Accusys Verify Serial ATA II Compatibility

TAIPEI, Taiwan - Seagate Technology (NYSE:STX), the world's largest supplier of hard disc drives, announced today that its native Serial ATA drives with Native Command Queuing (NCQ) have successfully completed compatibility testing with Accusys' Serial ATA RAID controllers - providing original equipment manufacturers (OEMs), solution providers, PC builders, system integrators, value-added resellers (VARs) and Do-It-Yourself users with a variety of pre-tested Serial ATA combinations for building PCs, RAID arrays and nearline storage applications.

Tests including Accusys Reliability Assurance Test, IO-meter 2003, NAStest, Winthrax 3.09 and WinMTA 3.0 were done in both Seagate and Accusys labs. Each test ran for 72 hours on 16 Serial ATA-equipped devices without any issue to achieve a 100% success rate, demonstrating a high degree of compatibility and interoperability between Seagate and Accusys products utilizing the Serial ATA interface.

Along with basic compatibility testing like booting and OS loading, specific test programs were used to further evaluate Serial ATA equipment. Among the tests that performed were:

* Data transfer tests, geared at measuring how reliably data is transmitted and received
* Transmit eye pattern tests for both hosts and devices
* OOB hand shake protocol tests
* Common mode transient tests

"In working with Seagate to put this compatibility verification together, we are excited to highlight Serial ATA technology in advancing the PC and entry-server platforms," said Dr. Tzong-Dar Her, Product Marketing director of Accusys. "This successful validation continues to affirm both Seagate and Accusys' efforts to drive Serial ATA architecture development and deliver innovative Serial ATA RAID solutions for higher performance, enhanced data reliability, bigger storage capacity and added data protection in the computing marketplace."

"With our technology leadership and collaboration with industry partners like Accusys, Seagate continues to enable advances for our customers," said Daven Chiang, Seagate general manager and director of Sales & Marketing for Taiwan. "Both Seagate and Accusys have been active in the Serial ATA working group and have worked closely on Serial ATA developments. We are pleased with the successful compatibility testing of our Serial ATA NCQ drives with Accusys Serial ATA RAID controllers which have demonstrated and verified Serial ATA II capabilities for various market application needs."

Seagate native Serial ATA drives are designed to offer higher data transfer rates, enhanced reliability, ease of integration and performance scalability. They also provide simpler RAID integration and hot-plug compatibility and allow for smaller system designs. NCQ is a feature that can only be implemented on native Serial ATA hard drives like Seagate's. Seagate Serial ATA NCQ technology enables the hard drive to intelligently reorder and optimize both read and write command execution, improving the performance of queued workloads by minimizing mechanical positioning latencies on the drive. Operating systems such as Microsoft Windows and Linux are increasingly taking advantage of multi-threaded software or processor-based Hyper-Threading Technology. These features lead to workloads where multiple commands are outstanding to the drive at the same time. By utilizing NCQ, the hard drive's performance can increase significantly for these workloads.

Seagate Barracuda Serial ATA drives with NCQ are offered with an 8-Mbyte cache and a five-year warranty as standard features, and this month Seagate introduces capacities of 160-, 200-, 250-, 300- and 400-Gbytes. They offer excellent performance, and are the toughest PC hard drives in the industry because they resist up to 350 Gs of non-operating shock. Seagate hard drives are also the quietest hard drives in their class, emitting less than 2.5 bels at idle. The low acoustics are made possible by the Seagate patented SoftSonic FDB motor, which comes standard on every drive.

About Accusys
Accusys is the worldwide leader in design, manufacturing and marketing of full series of RAID Controller. The company is recognized as the first and the best manufacturer for the RAID Controller with ATA disc, while the company has great reputation providing full series of the RAID Controller as well. For more information, please check www.accusys.com.tw.

About Seagate
Seagate is the worldwide leader in the design, manufacturing and marketing of hard disc drives, providing products for a wide range of Enterprise, Desktop, Mobile Computing and Consumer Electronics applications. The company is committed to delivering award-winning products, customer support and reliability to meet the world's growing demand for information storage. Seagate can be found around the globe and at www.seagate.com.

Seagate and Seagate Technology are registered trademarks of Seagate Technology LLC. All other trademarks or registered trademarks are the property of their respective owners. Specified storage capacities reflect standard configurations exclusive of operating system or other software formatting.