Log shipping is bassically a process of the datatbase and its maily use for transaction of the lof files on the production SQL Server, And its the process of automating the backup of database. And then restoring them onto a standby server. Enterprise Editions is only supports log shipping. In the case of log shipping the transactional log file from one server is automatically updated into the backup database on the other server. If one server fails, the other server will have the same database and can be used this as the Disaster Recovery plan. The key feature of log shipping is that it will automatically backup transaction logs throughout the day and automatically restore them on the standby server at defined interval.