Paper Highlights Results of Lab Testing Showing Host and Guest Performance Boost from Defragmentation.

Gaithersburg, MD July 21, 2010 – Raxco Software, the leader in disk defragmentation software, today announced a new white paper that highlights how organizations can maximize VMware® ESX performance through defragmentation of guest systems. The paper details the results of testing performed to determine if there is any measurable server virtualization performance benefit to be derived from defragmenting virtual servers. The testing, conducted on a VMware ESX cluster, indicated that file defragmentation and free space consolidation of Windows Server® guests has a positive effect on the performance of both the Windows® guest and the ESX host.

Some of the key points from the paper include:

• File defragmentation and free space consolidation combine to significantly reduce the total number of IOs that need to traverse the ESX virtual storage stack
• File defragmentation and free space consolidation dramatically reduce disk latency, the time it takes an IO to complete
• File defragmentation and free space consolidation of Windows guests in a VMware environment reduce the total overhead on the hypervisor
• Free space consolidation improves write throughput for the Windows guests
• File defragmentation and free space consolidation improve productivity

“Organizations engaging in virtualization projects need to ensure that performance of their host and guest environments is maximized to the fullest extent,” said Bernd Harzog, virtualization performance and capacity management analyst at The Virtualization Practice. “This paper identifies file defragmentation and free space consolidation as high impact areas for performance improvement and highlights the significant benefits that can be realized by addressing these two components of virtualization environments.”

“For years, Microsoft and independent industry groups have recognized the importance of disk defragmentation and free space consolidation in improving and maintaining high-level performance on physical servers and workstations,” said Erwin Solis, product manager at Raxco Software. “As the industry flocks to virtualization environments, it is critical for businesses to achieve top performance in these environments to ensure they reap all the benefits, and this paper demonstrates how defragmentation and free space consolidation result in considerable benefits in the virtualization arena as well.”

The white paper can be downloaded at: http://www.perfectdisk.com/user_data/white_papers/vmware_multi_test.pdf .

About Raxco Software:
Raxco Software has been the industry leader in helping large enterprises, small businesses, and consumers with their computer performance and resource management needs for over 30 years. Its PerfectDisk is certified by Microsoft® for Windows 7, Vista, Windows Server® 2008 and Hyper-V. PerfectDisk products have a long history of winning the industry’s highest awards, including a perfect 5-star review from CNET Download, winner of the Windows IT Pro Readers’ Choice Awards for Defragmentation Utility and Storage Management Tools, Redmond Magazine’s Best of the Best Award, and PC Magazine’s Editors’ Choice Award, among others. Raxco’s PerfectSpeed is the industry’s first all-in-one automated PC performance suite for Windows®. Raxco also produces optimization software for HP’s OpenVMS operating system. Raxco Software can be found on the Web at www.perfectdisk.com.