Just Keep Working ENTERPRISE DATA PROTECTION SOLUTIONS Mission

Just Keep Working ENTERPRISE DATA PROTECTION SOLUTIONS Mission Critical Business Continuity April 2004

Topics for Discussion • Introduction to XOsoft • Introduction to WANSync HA • Introduction to Data Rewinder for Continuous Backup 2 Just Keep Working

XOsoft Mission XOsoft is a Provider of Business Continuity Software Solutions to Enable Instant Recovery From Any Type of Disaster, Including Common Data Corruptions 3 Just Keep Working

About XOsoft Founded • • • 1999, by Leading Software Experts ~ 30 Employees heavily weighted towards engineering Venture-backed with JK&B Capital as lead investor Locations • • Burlington, MA (Sales, Marketing, Support) Tel-Aviv, Israel (R&D) • Leonid Shtilman, CEO – over 15 years of experience in technology and corporate management; 2 successful hi-tech startups previously • Tom O’Connell, VP Sales – more than 18 years of experience in sales and executive sales management at Sybase, Oracle and Compaq • Gil Rapaport, VP Marketing – over 12 years of experience in Marketing and Bus. Dev. in the telecom and software industry • Dima Barboi, VP Engineering – more than 15 years of experience in numerous programming disciplines and mastery of multiple software development environments Management Team 4 Just Keep Working

XOsoft – Enterprise Data Protection Products • XOsoft: Provider of software for business continuity solutions including instant recovery from all types of data disasters • Product Suites include: • WANSync™ - global business continuity platform for disaster recovery, data and content distribution based on real-time replication technology • WANSync™ HA – global business continuity solution for high availability with fully automatic fail over capabilities • Data Rewinder™ - server-based solution dealing with data corruption, through a pioneering Rewind technology • All product suites tailored to industry standard application and database servers, including Microsoft Exchange, Microsoft SQL and Oracle 5 Just Keep Working

Introduction to WANSync and WANSync HA from XOsoft 6 Just Keep Working

WANSync • WANSync synchronizes critical information servers to remote replicas, and keeps them fresh and available with continuous, real-time replication • Wide Range of Applications: – High Availability – Data Distribution - Disaster Recovery - Server Migration • Benefits: ‘soft installation’, rewind technology, application aware, automatic failover, tree structure, high performance over WAN • Tailored Products include: – WANSync Exchange - WANSync SQL – WANSync Oracle - WANSync Server • Multiple and cross platforms support (Windows, Solaris, Linux, AIX) 7 Just Keep Working

DR Site Production Site Sy N WA Backup Site nc Real-time Replication Fast Recovery File/Application/DB Server (Sun e 450 Server) NWA c n Sy Storage Low-end Host (Pentium-based Server) Users 8 Just Keep Working

WANSync HA • Release of WANSync HA on December 15, 2003 • Tailored to industry standard application and database servers, including Microsoft Exchange, Microsoft SQL and Oracle • Automatic fail-over supports – – – IP takeover DNS redirection Hostname switchover Automatic startup of services and database mount Automatic update of AD (for Exchange 2000) Execution of pre and post fail-over scripts • Server failure and application failure awareness • Protection from data corruption employing the Rewind technology 9 Just Keep Working

WANSync HA - Configuration 10 Just Keep Working

WANSync HA - Benefits • Unlimited Availability - WANSync. HA easily surpasses traditional auto-failover solutions by breaking through geographical and network technology-imposed barriers • Fast and Simple Installation - WANSync. HA, unlike other solutions, requires neither lengthy server and client station reboots during installation and maintenance activities, nor significant changes to your IT infrastructure • Transparent Operation - WANSync. HA is designed to operate autonomously and intelligently, requiring minimal investment in IT manpower • Cost-Effectiveness - Unlike competing solutions that require additional 3 rd party clustering solutions to be installed, WANSync. HA is completely self-contained and works with the software and hardware platforms the customer already own • Application-Oriented HA Solution - Exchange, Oracle and SQL specific support 11 Just Keep Working

WANSync “Live” Statistics Scenarios Replication Tree Live statistics Events 12 Just Keep Working

WANSync and WANSync HA Rewind Technology Files in Replica host Files in Origin host Corrupted Correct Data Replication Recovery Corrupted Correct Data Rewind Folder Exchange Checkpoint or Pre-garbage Correct Event or Data User-defined Event or Timestamp Users Correct Data 13 Just Keep Working

Versatile Tree-based Topologies • Scalable • Reduce load on master • Saves bandwidth One-to-many Many-to-one Many-to-many 14 Just Keep Working

WANSync and WANSync HA Benefits • Soft installation – no system reboot or application shutdown required • Auto-discovery – automatic mapping of all application and DB components, for effortless replication setup (Exchange, SQL, Oracle) • High performance – real-time replication of large volumes of changes, transmitting only incremental changes Advanced Server Professional • Self-healing – automatic synchronization in case of broken links, ensuring zero downtime • Data integrity – data is written to the replica in the exact same order it was written to the master server • Immediate recovery – in case of corruption, WANSync will recover consistent data from replicas 15 Just Keep Working

Introduction to Data Rewinder from XOsoft 16 Just Keep Working

Data. Rewinder • Data Rewinder™ Product Suite – standalone product dealing with data corruption, through Rewind technology Based on proprietary filtering files system – “Go back” in time and to the major events as “rotation of logs”, “checkpoints”, “checksums”, etc. – Provide an ability to bookmark a rewind point – great advantage for system administrators and testing environment – Major advantage over snapshots: reliable rewind to the event of consistency and continuous journaling – tailored to industry standard application and database servers, including Microsoft Exchange, Microsoft SQL and Oracle 17 Just Keep Working

Emerging Continuous Backup Market • Continuous backup is consider by analysts as the next step in enterprise backup evolution: Tape Backup --> Disk Backup --> Snapshots --> Continuous Backup • Shift from time to backup to time to recovery gains momentum • Data Rewinder is complementary offering to backup and snapshot solutions - reliably fast rewind to the event of consistency, through OEM deals • Potential partners: Backup and Snapshot Vendors 18 Just Keep Working

Data Rewinder – Events View 19 Just Keep Working

Data Rewinder – Application events 20 Just Keep Working