Open Source Java Storage Software

File Read Test is a tool that reads disk files or directories and stops on the first read error. A second tool, Quick Disk Test, fills a disk with test data and verifies that it can be read back without errors.

A cross platform disk benchmark utility written in Java. Measure a drive's read and write speed by creating and accessing data files at your chosen location. Results shown in an easy-to-understand graph, allowing clear characterization of storage device behavior. Tune a benchmark's number of threads, block sequence/size, sample size. Benchmarks are saved for historical analysis. Please try our latest windows installer: https://sourceforge.net/projects/jdiskmark/files/jdiskmark-0.6.1.msi Verify 0.6.1 download w SHA-256 Hash: B120C499ED49D934D0E48D265CB7D6B789940CA00ACF71435F8BA68D68802F9E Instructions to verify file SHA-256 signature: https://sourceforge.net/p/jdiskmark/wiki/%20Verifying%20SHA-256%20Hash%20on%20Windows%20with%20PowerShell/ ZIP releases require java to be installed separately: * v0.5.0-v0.6.0 >Java 21 * v0.1-v0.4 > Java 8 user manual: https://github.com/jDiskMark/jdm-java/wiki/0.6.0-User-Manual

New owners (Oracle), new rules: Vdbench has been moved to Oracle Technology Network (OTN) http://www.oracle.com/technetwork/server-storage/vdbench-downloads-1901681.html

Storesim simulates creation of large amount of random files. Directory structure created is similar to what is done in very large file repositories: based on hashdirs (found in mailservers, NFS servers, files servers, image databases...)