VDT (Visual Disk Test) performs various I/O tests on files and devices such as whole hard disks, partitions, and logical volumes. It provides visual feedback on screen while offering a broad selection of addressing methods and test area selection.
Ehcache is a standards-based cache used to boost performance, offload the database, and simplify scalability. It is robust, proven, and full-featured, and has hundreds of thousands of production deployments.