Double-Take(R) Software Leads the Way with ESX-based Replication of Virtual Machines; New Technology to Provide Data Protection for Multiple Platforms on ESX.

SOUTHBOROUGH, Mass. -- Double-Take(R) Software today announced the development of virtual machine replication and failover software for VMware ESX Server to provide continuous data protection for virtualized environments. Running natively on the ESX server, this much anticipated technology from Double-Take Software offers flexibility and choice by supporting multiple virtual machines including those running Windows(R), Linux, Novell or any other VMware-supported operating system. Because this new technology will replicate entire virtual disks, everything including the operating system, applications, patches and data are protected and ready for recovery at any time.

"VMware is red hot, so providing those users with the same easy-to-use Double-Take replication that they are used to on physical machines is a smart play all around," said Steve Duplessie, founder and senior analyst, Enterprise Strategy Group. "I fully expect the world of virtual machines to continue to grow exponentially so it's important to be there early."

Double-Take Software will offer customers the industry's widest range of solutions for data replication and availability - allowing them to protect data on physical machines at the file level or at the virtual machine level on ESX Server. Customers will be able to use the same solution to replicate a physical Exchange server to a virtual target machine for disaster recovery as they do to replicate a Linux-based virtual appliance from one ESX server to another.

"While Double-Take is widely used today to protect Windows virtual machines or replicate physical Windows servers to virtual disaster recovery targets, we are seeing more and more customers run production workloads on a virtual infrastructure," said David Demlow, CTO, Double-Take Software. "These workloads are often running a variety of Linux distributions as well as Windows. We've designed something that will give our customers an option to protect any OS running as a guest on the ESX Server with the same level of protection and availability they've come to expect from our market-leading Double-Take product."

The product greatly reduces downtime and data loss in a virtual environment, making it an ideal component to disaster recovery and business continuity plans. With the new technology, changes are captured continuously, keeping the target virtual disk up to date and ready for failover, recovery and backup at any time. During an outage, the replicated virtual machine can be automatically started on the target server with the latest replicated data.

It is also designed to serve as an integral part of a comprehensive storage solution. It will support replication between any type of storage supported by the VMware ESX Server including direct attached SCSI or Fibre Channel SANs, as well as iSCSI and NAS storage in future versions of ESX Server.

Double-Take Software recently joined VMware's Technology Alliance Program - an initiative designed to allow VMware to team with industry-leading software companies to jointly develop solution stacks that provide value and cost savings to customers. (See related press release, "Double-Take(R) Drives Disaster Recovery Solutions for VMware Virtual Infrastructure.") The ESX-based technology for VMware underscores Double-Take Software's continued focus on data protection for virtualized environments. Double-Take for Virtual Systems(TM) announced in February, allows for the use of lower-cost virtual machines for high availability to support its customers' disaster recovery strategies.

Double-Take Ft. Lauderdale Hurricane Protection Seminar

In preparation for this hurricane season, Double-Take Software has launched a hurricane initiative to teach IT managers how to better protect their business critical data and to preserve current and historical records. The hurricane campaign kicks off on May 4 with a seminar titled Ft Lauderdale Hurricane Protection Seminar that will explain why it is important to protect SQL and Exchange servers, options that are available to IT managers, as well as costs and advantages to different solutions. For additional information or to attend, please turn to http://www.doubletake.com/misc/seminar-FtLauderdale-050406.aspx.

About Double-Take(R) Software

NSI Software, Inc. (NSI(R)), doing business as Double-Take(R) Software, provides the world's most relied upon solution for accessible and affordable data protection for Microsoft(R) Windows(R) applications. The Double-Take product is the standard in data replication, enabling customers to protect business-critical data that resides throughout their enterprise. With its partner programs and professional services, Double-Take delivers unparalleled data protection, centralized back-up, high availability, and recoverability. It's the solution of choice for thousands of customers, from SMEs to the Fortune 500 in the banking, finance, legal services, retail, manufacturing, government, education and healthcare markets. Double-Take is an integral part of their disaster recovery, business continuity and overall storage strategies. Double-Take Software is privately held and headquartered in Southborough, MA. For more information, please visit www.doubletake.com.

Double-Take(R), GeoCluster(R) and NSI(R) are registered trademarks of NSI Software, Inc. Balance(TM) and Double-Take for Virtual Systems(TM) are trademarks of NSI Software, Inc. Microsoft, Windows, and the Windows logo are trademarks, or registered trademarks of Microsoft Corporation in the United States and/or other countries. All other trademarks are properties of their respective companies.