Free filesystems software for linux

dbackup is a disk-based client-server backup system for Linux or other UNIX systems.
dbackup works on the principal that disks are cheaper and more reliable than tapes.
Backups are started by cron probably on a daily basis by the client. The client backs up individual filesystems / directories with tar and sends the result to the server, which stores them in a simple tree-based directory structure.
Restores are trivial, either by using the supplied restore client, or by simply copying the appropriate tar files off the server and uncompressing them.
Main features:
- Backup very large filesystems as long as you have the disk space
- Works with very large numbers of servers / filesystems
- No state is kept on the client, its all on the server
- Backup to multiple backup servers in round-robin
- Configuration can be global or per-server
- Authentication for client restores (optional)
- Trivial procedure for restores
- Daily / Full incremental backups
- Configurable number of days before old backup runs are deleted / archived to tape

HardInfo is a benchmark tool and system information for Linux systems.
Main features:
Get information about your computer:
- The Processor
- Operating System
- Languages
- Sensors
- Filesystems
- Shared Directories
- Display
- Network Interfaces
Its devices (and what controls them):
- Kernel Modules
- PCI Devices
- USB Devices
- Printers
- Input Devices
- Storage
Benchmark:
- ZLib
- MD5 and SHA1
- And generate nicely-formatted HTML reports!
Enhancements:
- Maintenance version.
- Mostly bugfixes, plugged memory leaks.
- Minor feature enhancements.

Glaze provides a kde icon set.
Its a kde icon set aiming to be an almost-complete set of actions and filesystems series, attempting to match the new icon palette.
Enhancements:
- some new mimetypes

TransWhite is a simple system status theme.

Also included svg source file with all parts of interface.

Backgrounds for other than 2 filesystems sections also included (to use them You must edit theme file in section karamba, background and mountpoint definitions).

Dirvish project is a fast, disk based, rotating network backup system.

With dirvish you can maintain a set of complete images of your filesystems with unattended creation and expiration. A dirvish backup vault is like a time machine for your data.

FindFile will be a collection of tools for recovering files from filesystems with corrupted directories/allocationtables/etc.

This can be usefull when the partitiontable (or more) of a harddisk is corrupted. Or when you have a memory-card of a digital camera which is corrupted.

For now only a tool for recovering .JPEG files is included. It is pretty fast!

cowdancer allows copy-on-write file access. You can copy a full tree using hard links, and cowdancer will create a new copy when you need to write to a file.
cowdancer is completely implemented in userland, and should run on most Linux filesystems.
Enhancements:
- This release supports spaces in filenames.