EJDB is an embedded JSON database engine. It aims to be a fast MongoDB-like NoSQL library that can be embedded into C/C++/Nodejs/Python3/Lua applications. It features collection-level write locking, collection level transactions, string token matching queries, and a Node.js binding.
GlusterFS is a clustered filesystem capable of scaling to several petabytes. It aggregates various storage bricks over Infiniband RDMA or TCP/IP interconnect into one large parallel network file system. GlusterFS is based on a stackable user space design without compromising performance.
KVZone is an evaluation tool for comparing performance of key-value stores. It provides various configuration parameters to match the expected application workload. It provides adapters for existing key value stores such as TokyoCabinet and simple databases such as sqlite3 and BerkeleyDB that can be used as key-value stores. New adapters can easily be written to evaluate other key-value stores.
Opendedup is a project that develops a deduplication based filesystem for called SDFS. SDFS is a distributed and expandable filesystem designed to provide inline deduplication and flexiblity for applications. It benefits services such as backup, archiving, NAS storage, and Virtual Machine primary and secondary storage, and can be deployed in both a stand alone and distributed, multi node configuration. Standalone, it provides inline deduplication, replication, and unlimited snapshot capabilities. In a multi-node configuration, it adds global intra-volume deduplication, block storage redundancy, and block storage expandability. and will store and share unique data blocks with other volumes within the cluster. These volumes can also specify a level of redundancy for data stored in the cluster.
S3QL is a file system that stores all its data online. It supports Amazon S3, Google Storage, and OpenStack and effectively provides you with a hard disk of dynamic, infinite capacity that can be accessed from any computer with Internet access. S3QL provides a standard, full featured Unix file system that is conceptually indistinguishable from any local file system. Additional features include compression, encryption, data de-duplication, immutable trees, and snapshotting, which make it especially suitable for online backup and archiving. The design favors simplicity and elegance over performance and feature-creep. Care has been taken to make the source code as readable and serviceable as possible. Solid error detection, error handling, and extensive automated test cases are provided.
Sirix is a versioned tree-based storage system. It provides Snapshot Isolation through MVCC and is best suited for flash-based storage. The tree encoding is suited for heavy update operations. It provides diffing algorithms either to import diffs between currently shredded (imported) XML documents to update a tree structure or to get the differences between versions of a tree structure. A GUI provides several visualizations for comparing imported tree structures.
TSM monitor is a Web application written in PHP to help TSM administrators quickly get reports and health status information from their TSM servers. It generates its content dynamically so one can easily add or modify queries to adapt the application to one’s own needs. It features customizable queries, a dynamically generated navigation menu, an overview page with traffic light logic, graphical timetable charts for queries with start and end time (like backups and schedules), multiple servers, login protection (authentication against a default TSM server), and result caching for better performance.