Lsyncd watches a local directory tree's event monitor interface (inotify). It aggregates and combines events for a few seconds and then spawns one (or more) process(es) to synchronize the changes. By default, this synchronization is done with rsync. Lsyncd is thus a lightweight live mirror solution that is comparatively easy to install. It does not require new filesystems or block devices and does not hamper local filesystem performance.
The Zumastor Linux storage project adds enterprise storage features to Linux, primarily improved snapshots and remote replication. Point-in-time, near zero-cost, block level snapshots can be added to any existing filesystem and performance does not degrade with multiple snapshots. Remote replication is achieved by sending minimal block level deltas between snapshots without having to traverse the entire filesystem like rsync does.
Chiron FS is a FUSE based filesystem that implements replication at the filesystem level like RAID 1 does at the device level. The replicated filesystem may be of any kind you want; the only requisite is that you mount it. There is no need for special configuration files; the setup is as simple as one mount command (or one line in fstab).
DB Copy Plugin is a database copying plugin for the SQuirreL SQL Client. It makes it possible to copy and paste tables from one session to another and between different databases and includes primary key and foreign key constraints for copied tables, and uses Hibernate 3.0 internally to perform database object type mappings. It supports Firebird, Oracle, Sybase, MS SQL Server, MySQL, HyperSonic, Pointbase, and PostgreSQL, and allows the user to select a Hibernate dialect for the destination database if one couldn't be determined automatically.
Rsyncmanager is a daemon designed to simplify the task of coordinating multiple file transfers to or from a machine. It was originally written to serve as the managing hub of a backup system that used rsync to feed in files from many other machines, so that all backups could be run from a single place. It can be used to coordinate any kind of regular file transfer, from a simple hourly copy of an email store from a primary to a backup server, to multiple concurrent rsyncs to multiple machines on varying schedules.
Rsyncrypto allows you to encrypt a file or a directory structure such that they can later be synchronized to another machine using rsync. This means that local changes to the plain text file result in local changes to the cipher text file. rsyncrypto compresses the plain text file prior to encrypting it with gzip using the "rsyncable" patch, which is available from the rsync sources.
FullSync is a powerful tool that helps you keep multiple copies of various data in sync. It can update your Web site using FTP and SFTP, back up your data on the local disk or refresh a working copy from a remote server on your local drive using Samba, and much more. It features multiple protocol support, flexible rules, a scheduler, and many other features that give you a solid basis for nearly all situations.
Partition Logic is a partitioning and disk management tool for PC-compatible computers. It includes its own standalone operating system and GUI, and can fit on a single bootable floppy (or CD). It creates, modifies, resizes, deletes, formats, and moves partitions, and copies hard disks. It is based on the Visopsys operating system.