It 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.
- 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, it’s all on the server
- Backup to multiple backup servers in round-robin
- Configuration can be global or per-server
- Authentication for client restores (optional)
- Supports optional gzip or bzip2 compression
- Supports client-side gpg encryption
- Trivial procedure for restores
- Daily / Full incremental backups
- Perl version 5.005 or above is required, but much better performance will be seen with 5.6 or above.
- While not required, the Term::ProgressBar module is recommended for restores
- Install the package, either by the RPMs or extract the tarball and follow the INSTALL instructions.
- Edit the client config file in /etc/dbackup-client/config to specify the address of your backup servers:
# dbackup client configuration. Perl syntax.
# The following are the defaults. A list of servers can be given using
# syntax: [ "host_a", "host_b" ]
$backup_servers = [ "backup1.mydomain.com", "backup2.mydomain.com" ];
$backup_port = 38771;
# DO NOT CHANGE THIS
- Initiate a backup on the client:
client1:~# dbackup backup /home/httpd
Any errors will be printed to the screen. You can use the -v flag to show details.
- Request a list of available backups from the server. You can run this from another machine by specifying the -h flag:
client1:~# dbackup list
Available backups for client1:
Directory Run Level Date Size
/home/httpd 1 0 2006-10-24 17:02 2598912000 ( 2.4 Gb)
- Test a restore to a temporary directory on a second machine:
client2:~# dbackup restore -d /tmp -h client1 /home/httpd
Restoring /home/httpd on localhost to /tmp (Backup 1.0)
Restored 2.40 Gb in 59 seconds.
100% [=========================================================================================]D 0h00m00s
Documentation is in the program files in POD formation.
To view the documentation on the server, run “perldoc dbackup_server“.
The current version is 1.1.0, and represents a major rewrite from the 1.0 tree. It is not backward compatible.
Please submit any and all bug notifications you have to email@example.com.
You can contact the author (David Parrish) at firstname.lastname@example.org.