Press Release

EMC, LEGATO, Nortel Networks Announce Business Continuity Solution

Industry Leaders Combine Technologies for Highest Levels of Business Continuity, Disaster Recovery over Distance

HOPKINTON, Mass., MOUNTAIN VIEW, Calif. and BRAMPTON,, Monday, April 14, 2003 - 

EMC Corporation, LEGATO Systems, Inc. and Nortel Networks* today announced a highly available enterprise business continuity solution that enables multiple data centers to act as one to help keep businesses running. In the event of a disaster, transactions are automatically routed to an alternate site with no need for manual restore or restart procedures, greatly reducing time to recovery and lowering costs.

As environments become increasingly complex, customers require heterogeneous data center solutions that can be linked across substantial distances. This business continuity solution provides a geographically dispersed, high-availability architecture for application, server, storage and transport. Customers can benefit from synchronous replication over extended distances with minimal impact on overall application performance.

"Enterprises increasingly need to find ways to integrate storage networks and crucial business data across the wide area network to support business continuity, disaster recovery and compliance with government regulations," said Jamie Gruener, Senior Analyst, the Yankee Group. "The combined, tested offering from Nortel Networks, EMC, and LEGATO provides a best-of-breed approach to simplifying the complex problem of tying multiple SANs (storage area networks) together between multiple corporate sites. By bringing the three product sets together in a cohesive manner, deploying business continuity and disaster recovery strategies just got a lot easier for enterprises and service providers."

The pretested solution includes EMC Symmetrix® and CLARiiON® networked storage systems, EMC SRDF™ (Symmetrix Remote Data Facility) remote replication software, LEGATO Automated Availability Manager™ (AAM) for EMC SRDF and Nortel Networks OPTera* Metro 5200 Multiservice Platform. This business continuity solution provides application availability, backup and recovery, proactive management of planned downtime and optimization of resources and environments over geographically dispersed distances. Heterogeneous platform support includes Sun Solaris, HP-UX, Windows NT/2000, and IBM AIX.

Integrated through the EMC Developers Program™, LEGATO AAM for EMC SRDF combines functions of AAM with EMC SRDF software for full site protection of system resources, data and applications; planned or unplanned downtime; site failure or disaster; and automatic (or manual) site-to-site failover and fail-back. EMC Symmetrix and CLARiiON networked storage systems support LEGATO high availability clusters managed over distance through a single LEGATO AAM console. Customers have the opportunity to gain significant implementation, administration and performance benefits by leveraging the heterogeneous support of LEGATO AAM with the remote replication functionality of EMC SRDF while running protocols across Nortel Networks DWDM (dense wavelength division multiplexing) links at distances of up to 200 kilometers. The bandwidth of Nortel Networks DWDM-based OPTera Metro 5200 platform gives this solution massive scalability.

This solution was qualified in EMC's E-Lab. EMC conducts the storage industry's most comprehensive testing in its E-Lab, offering customers the highest level of interoperability assurance. EMC's-Lab qualification process involves a series of exhaustive functionality and reliability tests to ensure the interoperability of all components that make up a multi-vendor information storage network.

About EMC
EMC Corporation (NYSE: EMC) is the world leader in information storage systems, software, networks and services, providing automated networked storage solutions that enable organizations of all sizes to better and more cost-effectively manage, protect and share their information. More information about EMC'sproducts and services can be found at www.EMC.com.

About LEGATO
LEGATO Systems, Inc. (NASDAQ:LGTO) delivers worldwide enterprise class software solutions and services that keep the world's business-critical information and applications available. With a direct sales force and through strategic partnerships and alliances, LEGATO delivers the advantage of business continuance through enterprise automation with information protection, application availability as well as content, message and storage management solutions. The company's corporate headquarters are located at 2350 West El Camino Real, Mountain View, CA 94040 (650) 210-7000, fax: (650) 210-7032, Web site: www.LEGATO.com

About Nortel Networks
Nortel Networks (NYSE/TSX: NT) is focused on extending the benefits of networked storage and breaking through the barriers that limit widespread deployment of storage solutions: distance, interoperability, scalability, capacity, and protocol transparency. Nortel Networks is an industry leader in the transport of SAN traffic across the metro, carrying more than 200 petabits of mission-critical traffic per day.

Nortel Networks is an industry leader and innovator focused on transforming how the world communicates and exchanges information. The company is supplying its service provider and enterprise customers with communications technology and infrastructure to enable value-added IP data, voice and multimedia services spanning Wireless Networks, Wireline Networks, Enterprise Networks, and Optical Networks. As a global company, Nortel Networks does business in more than 150 countries. More information about Nortel Networks can be found on the Web at www.nortelnetworks.com.

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