A backup server is a dedicated system or service used to store copies of critical data and applications to protect against loss, damage, or failure. For businesses, backup servers are a fundamental part of IT infrastructure and data protection strategies, ensuring that operations can quickly recover from unexpected events like hardware failures, cyberattacks, or natural disasters.
A backup server acts as a secure repository for data copied from primary systems. It regularly receives updated backups of files, databases, and applications so that, if the primary system experiences problems, the data remains intact and recoverable.
Backup servers can be on-premises (physical hardware in the company’s location) or cloud-based, depending on organisational needs and security policies. Modern backup strategies often use a combination of both for added redundancy and reliability.