The Burton Group is one of IT's leading analyst firms. They research IT architecture, infrastructure, governance, new technologies and other IT-relevant strategies and create detailed advisory reports. In a recent free report, the Burton Group covered the popular topic of Server Virtualization. In a particular section they covered disk performance and correctly granted that subject significant importance. Here are some quotes from the paper: "Over time, the fragmentation will continually degrade performance of the virtual disk." "File writes and deletions will fragment a virtual hard disk, like any physical hard disk, over time. Running scheduled disk defragmentation operations at periodic intervals or using a disk defragmenter application that defragments disks in real time is the best approach to prevent fragmentation-related disk performance degradation." Of course Diskeeper Corp strongly recommends the real-time approach as the most effective and modern method for solving fragmentation. You can sign up to access Burton Group's free papers including the one mentioned above here.
The Burton Group on Fragmentation and Virtualization
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