Zenoss Scales Open Source Network & Systems Monitoring Solution to Address Needs of Large Enterprise IT Environments

ANNAPOLIS, MD (JUNE 18, 2008) - Zenoss Inc., a leading provider of open source network, systems and application management software, today announced release 2.2 of Zenoss Enterprise its commercial open source alternative to proprietary IT monitoring suites. Designed for medium and large enterprises, the new version makes it easy to scale to tens of thousands servers and/or network devices and offers a high availability configuration and enhanced monitoring of Microsoft Windows.

“Large enterprises represent the fastest growing segment of our business,” said Bill Karpovich, CEO and Co-Founder of Zenoss. “Hundreds of large IT operations are realizing the speed, flexibility and economic advantages of our approach. This latest release delivers an even more compelling alternative to proprietary IT monitoring suites.”

Zenoss Enterprise is an integrated network, sever and application management software product that includes auto-discovery, inventory management, configuration tracking, availability monitoring, performance management, event/log management, remediation, alerting and reporting, all through a single web-based console.

Zenoss Enterprise allows IT teams to monitor their entire infrastructure including virtual servers such as VMware and Xen, physical servers, Microsoft Windows, Linux, Unix, network devices, web services, processes, applications, etc.

Available through an annual subscription, Zenoss Enterprise subscribers get a complete IT infrastructure monitoring software solution, certified binary builds, expert support services, patch management, intellectual property protection and indemnification.

New features of Zenoss Enterprise 2.2 include:

Distributed Configuration Manager

• Several enhancements to our tiered architecture to simplify & secure the deployment of distributed collectors
• The Distributed Configuration Manager allows you to provision, configure and monitor distributed collectors directly from the Zenoss management GUI
• Scale to manage tens of thousands of resources through a point and click process

Distributed Collector Package

• Specialized software build, hardware appliance, and software appliance for distributed collectors
• Further simplifies deployment of distributed configurations

High Availability Package

• Standard, certified configuration to achieve high availability and real-time fail over for Zenoss deployment infrastructure
• Essential for mission critical management environments

Enhanced Monitoring of Microsoft Windows

• Several enhancements to agentless monitoring of Microsoft Windows
• In addition to monitoring Windows Performance Counters, users can now automatically populate and maintain a centralized view of their software, hardware and service configurations using WMI

Expanded Library of Certified Monitors

• New monitoring ZenPacks for BigIP, Brocade, Cisco (IPSLA, Load Balancers), Juniper, Netscreen (Firewalls), NetApp, Nortel, SugarCRM, etc.

Point-and-Click Installation

• New installers are available for certified platforms including Redhat Enterprise Linux, Novell Suse Enterprise Linux

Platinum Service Plan

• New service plan offers dedicated account management and 24x7 access to Zenoss Engineers for business critical issues

For more information, please visit https://www.zenoss.com/product/2_2_enterprise.

About Zenoss, Inc.

Zenoss Inc. delivers open source IT management solutions to organizations across the globe. Our flagship product Zenoss Core is a complete network monitoring and systems management platform that discovers networked IT resources, monitors them for performance and availability, and tracks changes through a configuration management database (CMDB). One of the ten most active projects on SourceForge.Net, Zenoss software was downloaded over 350,000 times in 2007. Recent product accolades include Network World's Clear Choice Award, Enterprise Open Source Magazine Readers' Choice Award, and a nomination for Best Technical Design in the SourceForge 2007 Community Choice Awards. Zenoss' customers include some of the world's largest corporations as well as Federal and State government agencies. Zenoss, Inc. is privately held and headquartered in Annapolis, MD. For more information, please visit www.zenoss.com.

Press Contact:

Dana Liedholm, 410-990-0274 x7021
media@zenoss.com