“As you transfer data to a hard drive it cannot take into account that the recorded data will change or the files may become larger. The hard drive will write and store data in pre-determined quantities and fills space based on the table that keeps track of where and how much data exists. The fragments result because files change, become larger, and the space it resides in remains the same due to data stored at its boundaries. The hard drive maintains a record of how the data is stored so if a file had to be extended and could not be appended, the additional data would be stored in a free space area."
"V-locity has consistently increased the performance of our VMs. These noted performance gains are even more readily apparent to our administrators through usage of the new Benefit Analysis functionality. This feature not only allows us to more easily generate reports that visually show the benefits of the product but it also provides us with great documentation for demonstrating the benefit of V-locity to our managerial staff. For example, one of our Remote Desktop Session host servers experienced a 190% improvement in normalized I/Os per second while latency was reduced by 190% as well. We particularly like the IntelliWrite technology.”
“Fragmentation is usually a big culprit in stealing system performance. We put it on all staff portables. Diskeeper is an integral part to maintaining individual computer's health. I basically “Set It and Forget It”. We are using NetApp StoreVaults for our SAN. We have MS SQL currently running in the district and GroupWise is our messaging system. I am running Diskeeper on those virtual machines with Windows Server 2003/2008. Before we deployed Diskeeper, we had severe fragmentation that caused systems to run slow. Also, just running defrag was problematic because the ‘best way to run it’ was to be logged in as administrator or with administrator equivalent rights. That is not a possibility in a school district."
"With V-locity, we've seen an 80-90% improvement in response time for SQL, email, CRM, and other critical apps. Sluggishness and performance issues just don't exist."
“The biggest reason for our widespread Diskeeper deployment is for database applications such as Sybase SQL, Microsoft SQL, and Exchange Server, where high numbers of minute transactions cause extensive disk fragmentation over time. Because of the limited defrag automation options in Windows and restriction of defrag utilities only to network administrators, we had a legitimate need for an intelligent defrag solution such as yours. I’ve seen a 20%+ gain in performance, which users are happy to take advantage of."
"Our network serves 80 employees with external and internal access to resources, so not too heavy of a load. My primary concern is for the virtualized Exchange server, and V-locity works really well."
“Diskeeper indeed provided the ROI we expected. We are very satisfied. It always proved to be a valuable product for transparent defrag and overall performance. Prior to installing Diskeeper our systems were almost unresponsive. The deployment was easy; it is a fine product that we rely upon. The Automatic defrag does not take any visible resources, which is really appreciated. The automatic defrag also helps overall performance greatly on files system access. One of the folders has millions of files in it with no subfolders and it was almost inaccessible before the Diskeeper implementation due to the fragmentation level being very high.”
“V-locity works great. It is easy to install and then it just runs. It keeps my Hyper-V virtual machines from fragmenting and I never have to worry about it. It is true “Set it and Forget it” software."
“Prior to installing Diskeeper we had problems to get and keep the disks defragmented, especially the larger volumes. The performance of those volumes was poor. Diskeeper with IntelliWrite took care of those problems thus greatly improving the disk performance especially the volumes on our HP EVA SAN 4000.”