cua-backup-restore

CUABR is a WordPress plugin developed for multi-site WordPress blog admins. With CUABR, individual blog admins of a multi-site network can backup and  restore their own blogs; together with the db records and uploaded files; and download the backup sets to their desktops. This plugin ONLY works on multi-site WordPress installations built on LAMP (Linux + Apache + MySQL + PHP) servers.

Network administrators can backup/restore any blog site within the network, i as well as the whole network.

CUABR can also be used to clone blogs within a network.

Plugin site