An IT disaster recovery plan for a business is a comprehensive strategy designed to ensure that critical information systems and data can be quickly restored after an unexpected disruption. It includes:

1. Risk Assessment: Identifying potential threats and their impact on operations.

2. Recovery Objectives: Defining Recovery Time Objectives (RTO) and Recovery Point Objectives (RPO) to guide recovery efforts.

3. Backup Solutions: Implementing regular and redundant backups to protect data.

4. Response Procedures: Establishing clear steps for handling various types of incidents.

5. Roles and Responsibilities: Assigning specific tasks to team members to ensure a coordinated response.

6. Testing and Updates: Regularly testing the plan and updating it to address new risks and changes in the IT environment.

This plan helps minimize downtime, protects vital data, and ensures a swift return to normal operations, safeguarding the business against disruptions.