ALISO VIEJO, Calif., February 27, 2003 - QLogic Corp. (NASDAQ:QLGC), the company that powers storage area networks (SANs), today announced that its Fibre Down* I/O architecture is now shipping in IBM eServer BladeCenter systems. Fibre Down is the integration of single-chip Fibre Channel host bus adapters, management controllers and switches onto blade servers.

IBM's BladeCenter architecture helps simplify SAN connectivity by eliminating the complex installation of expensive host adapters cards and external switch boxes. In addition, IBM improves blade server reliability and manageability through integration of QLogic single chip management controllers.

The Blade Server Revolution
The Internet has changed the server usage model from single servers to higher density server farms. However, system administrators find deployment and operation difficult. Server resilience and complex cabling are serious problems for server farms. There are also problems associated with securing and managing large numbers of servers.

Blade servers address server farm issues by stacking independent servers within a single cabinet. Each blade is an independent system with its own memory, processor and network connection. Multiple blade servers can be placed in a single rack or enclosure.

Blade Server Infrastructure Powered by QLogic
QLogic offers a family of single chip products that form a complete I/O infrastructure for dense blade servers. Single chip HBAs, switches and management controllers from QLogic provide fast, reliable and scalable storage expansion in an ultra-compact form-factor.

About QLogic (www.qlogic.com)
QLogic Corporation (Nasdaq:QLGC <http://finance.yahoo.com/q?s=qlgc&d=t>) simplifies the process of networking storage for OEMs, resellers and system integrators with the only end-to-end infrastructure in the industry, consisting of award-winning controller chips, host bus adapters, network switches and management software to move data from the storage device through the fabric to the server. QLogic designs and produces solutions based on all storage network technologies including SCSI, iSCSI, InfiniBand and Fibre Channel. A member of the S&P 500 Index, QLogic was recently named to Forbes' Best 200 Small Companies for the fourth consecutive year and was named to Fortune's 100 Fastest Growing Companies list for the third consecutive year.

Note: All QLogic-issued press releases appear on the company's web site (www.qlogic.com). Any announcement that does not appear on the QLogic web site has not been issued by QLogic.

Disclaimer- Forward Looking Statements
With the exception of historical information, the statements set forth above include forward-looking statements as defined within the Private Securities Litigation Reform Act of 1995. Such forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those projected or implied in the forward-looking statements. QLogic wishes to advise readers that these potential risks and uncertainties relate to, but are not limited to, in no particular order: the introduction of new and changing technologies in our industry and customer acceptance of those technologies; a change in semiconductor foundry capacity or conditions; fluctuations in the growth of I/O markets; fluctuations or cancellations in orders from OEM customers; QLogic's ability to compete effectively with other companies; cancellation of OEM products associated with design wins; and fluctuations in our operating results and our stock price.

More detailed information on these and additional factors which could affect QLogic's operating and financial results are described in QLogic's Forms 10-Q, 10-K and other reports, filed or to be filed with the Securities and Exchange Commission. QLogic urges all interested parties to read these reports to gain a better understanding of the many business and other risks that QLogic faces. Additionally, QLogic undertakes no obligation to publicly release the results of any revisions to these forward-looking statements, which may be made to reflect events or circumstances occurring after the date hereof or to reflect the occurrence of unanticipated events.

Note to Editors: Trademarks and registered trademarks are the property of the companies with which they are associated.
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