Backup plugins are design to protect from data loss from hosting issues, servers errors or hackers.  The process is typically fast and reliable.  In some services, you can backup to your own server, Amazon S3, Rackspace Cloud, FTP, or e-mail. You’ll be able to quickly and easily restore your site on the same server or migrate to a new virtual private server with a different domain and database.

Backup Buddy

Backup to your server, Amazon S3, Rackspace Cloud, FTP, or e-mail.  With little to no headache, quickly and easily restore your website or blog on the same server or migrate to a new server with a different domain and database.
Prices:
2 sites: $75    10 sites: $100    Unlimited sites: $150    Plugin Developer Suite: $197
Preview | Purchase

Vault Press Premium WordPress Plugin

Vault Press is security WordPress plugin from VaultPress designed to protect webmasters from loss of data via hosting issues, servers errors or hackers that can wipe your website out in seconds in what it took you years to create.
Price: $20/month
Preview | Download

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