Open Source Windows Storage Software

eXplode is a storage system checker. It contains a generic model checker for real code instead of abstract models. Using this model checker, eXplode can systematically check a storage system against many possible crashes to find crash-recovery errors.

This command-line tool will help people who want to compare 2 csv-like files, and get a detailed report on which rows and fields differ between both files. An awk-based version and Perl Version is currently available.

Lepton image compression, saving 22% losslessly from images at 15MB/s. Lepton achieves a 22% savings reduction for existing JPEG images, by predicting coefficients in JPEG blocks and feeding those predictions as context into an arithmetic coder. Lepton preserves the original file bit-for-bit perfectly. It compresses JPEG files at a rate of 5 megabytes per second and decodes them back to the original bits at 15 megabytes per second, securely, deterministically, and in under 24 megabytes of memory. We have used Lepton to encode 16 billion images saved to Dropbox, and are rapidly recoding our older images. Lepton has already saved Dropbox multiple petabytes of space. At Dropbox, the security and durability of your data are our highest priorities. As an added security layer, Lepton runs within seccomp to disable all system calls except read and write of already-open file descriptors. Lepton has gone through a rigorous automated testing process.

Exlock is a command line tool. The purpose of this tool is to test / debug / tune the creation of other software. Exlock opens in exclusive mode a file passed as parameter. Other processes accessing the file will get a error. The purpose of this tool is to simply evaluate which is the behavior in case of this error.

Filecmp is a command-line application that gets two filenames as argument and outputs the comparison between them - e.g. if they are the same or not... it may look irrelevant but sometime it's very useful, specially inside scripts.

iSCSIsim is a powerful generic test tool for iSCSI targets. Its capabilities include SCSI command injection, error insertion, and recovery testing: all with built-in validation of test results.