This is really not the design of Bladelogic. To perform a server backup and restore you would do something like this:
1 – create a system package to define the OS build
2 – create packages to deploy customized configurations to the server(s)
3 – backup any ‘data’ using a backup tool (netbackup, etc) – though ideally your data lives on a nfs share or san.
Then if a server fails, you rebuild using bladelogic’s bare-metal provisioning, deploy the configs and restore any data from backups.