Log shipping allows you to automatically send transaction log backups from one database (known as the primary database) to a secondary database on another server (known as the secondary server). At the secondary server, these transaction log backups are restored to the secondary database, keeping it closely synchronized with the primary database. An optional third server, known as the monitor server, records the history and status of backup and restores operations and optionally raises alerts if these operations fail to occur as scheduled.
BENEFITS OF LOG SHIPPING:
The following are the benefits of Log Shipping in SQL 2005
1. High Availability —> Even if primary is down we have the standby server hence it provides high availability of data
2. Cost —> It is the least expensive as it is available even with Workgroup edition
3. Multiple Secondary —> This provides higher redundancy of data by providing multiple standby servers.