Sep 16, 2003

Seagate, Intel And Silicon Image Demonstrate SATA Native Command Queuing Advantage

Seagate (NYSE: STX), Intel and Silicon Image (Nasdaq: SIMG) today demonstrated Serial ATA (SATA) Native Command Queuing (NCQ) technology, one of the most anticipated features of the Serial ATA interface. The companies created an integrated Serial ATA solution combining native SATA hard drives, host controller, and system software - all of which are required to perform SATA command queuing. The system used Seagate's new 200-Gbyte Barracuda 7200.7 SATA hard drive and a Silicon Image SiI 3124( SATALink( 4-port PCI-X Host Controller featuring full hardware support for NCQ. Until today, SATA NCQ technology had been demonstrated only as a development technology. The demonstration can be seen this week at the Serial ATA Work Group Booth #438 at the Intel Developer Forum in San Jose, Calif.

The demonstration compares Seagate Barracuda 7200.7 SATA hard drives running with NCQ to Seagate Barracuda 7200.7 parallel ATA (PATA) hard drives, and shows that SATA NCQ technology will thrust SATA storage into a new realm of power and flexibility, highly anticipated by system builders seeking the latest technology for a competitive edge. SATA NCQ significantly increases I/O performance in high-performance PCs and entry-level server systems, compared with systems using bridged SATA or PATA solutions with legacy tagged command queuing or with no command queuing. The benchmark was specially designed by Intel to throw an aggressive transactional workload at the SATA and PATA hard drives and measure the performance difference in this high I/O workload.

The benefits of SATA NCQ are described in joint technology paper by Intel and Seagate titled "Serial ATA Native Command Queuing: An Exciting New Performance Feature for Serial ATA," available here:

NCQ is a feature that can only be implemented on native Serial ATA hard drives like Seagate's. It enables a SATA hard drive to take a set of up to 32 outstanding commands and intelligently reorder them before reading or writing the data, improving 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.

SATA products with NCQ will provide a new advantage for the cost-sensitive entry-level server market in which SCSI's extremely high queue depth and feature rich command sets are not needed. High-performance PC workstations, fixed-content and near-line storage subsystems, low transactional servers running applications like Web hosting, IT collaboration, and network and print servers where cost-per-gigabyte is especially important can all benefit from SATA NCQ.

The Seagate Barracuda 7200.7 is the industry's first hard drive capable of supporting SATA NCQ. NCQ will be implemented on production Barracuda 7200.7 SATA hard drives when system architectures that support NCQ become more broadly available. Seagate is working closely with industry leaders to enable the adoption of system architectures that support NCQ by early next year. Seagate led industry efforts to develop SATA, was first to bring it to market, and maintains its unique advantage with the only native SATA technology that can take advantage of advanced SATA functions like NCQ.

The SiI 3124 is Silicon Image's most advanced SATA host controller to date for server and networked storage applications. It is also the first and only host controller that supports Frame Information Structure (FIS)-based switching for SATA port multipliers, which enables command execution and data transfer to multiple drives concurrently, providing outstanding performance improvements for demanding workloads. It is compliant with the SATA 1.0 specification and supports all SATA II extensions to the SATA 1.0 specification.

Intel and other chip and motherboard manufacturers support the technology and are working closely with Seagate to assure a steady supply of SATA drives and supporting hardware to their customers.

Seagate is the worldwide leader in the design, manufacturing and marketing of hard disc drives, providing products for a wide range of Enterprise, PC, Notebook 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

Silicon Image, Inc. ( designs, develops and markets multi-gigabit semiconductor and system solutions for a variety of communications applications demanding high-bandwidth capability. With its proprietary Multi-layer Serial Link (MSL(tm)) architecture, Silicon Image is well positioned for leadership in multiple mass markets including PCs, consumer electronics, storage and networking. Silicon Image leads the global PC/display arena with its innovative digital interconnect technology, and has emerged as a leading player in the storage industry-offering robust, high-bandwidth semiconductors and systems.

This news release contains forward-looking information within the meaning of federal securities regulations. These forward-looking statements include statements related to anticipated release of Silicon Image products, timing of those products, integration of such products by customers, and the performance expected of such products, to the anticipated benefits of SATA hard drives, and to the expected demand for such drives. These forward-looking statements involve risks and uncertainties, including those described from time to time in Silicon Image's filings with the Securities and Exchange Commission (SEC), that could cause the actual results to differ materially from those anticipated by these forward-looking statements. In particular, Silicon Image's products may not be released as expected, or at all, may not be integrated by customers, or have the features anticipated, and any release may not produce revenue, margin or profit, and the anticipated benefits of SATA hard drives or the demand for them may not be as expected. Also see "Management's Discussion and Analysis of Financial Condition and Results of Operations-Factors Affecting Future Results" in the most recent Annual Report, Form 10-K or 10-Q filed by Silicon Image with the SEC. Silicon Image assumes no obligation to update this forward-looking information.

Seagate and Seagate Technology are registered trademarks of Seagate Technology LLC. The WAVE logo and Barracuda are trademarks or registered trademarks of Seagate Technology LLC. Silicon Image, SATALink, SiI, SiI 3124, MSL and are trademarks, registered trademarks or service marks of Silicon Image, Inc. in the United States and other countries. All other trademarks or registered trademarks are the property of their respective owners.