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Difference Between Incremental and Differential Backups in Exchange Server

In Exchange Server, database backup is essential to prevent loss of data in case of disaster or unforeseen incidents, such as power outage, server failure, natural calamities, etc. At the same time, it is also important to decide on the data backup method as it is not practical to take a full data backup every time, considering the resources needed, the time to take backups daily, and the cost. So, you can choose between incremental and differential backup methods for taking frequent and regular database backups in Exchange Server.

In this article, we will discuss the differences between incremental and differential backup methods to help you decide which one to choose based on your needs. 

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Creating Backups on SQL Server for Disaster Recovery

Backups are one key to a successful disaster recovery plan. Every database engine has its own backup commands and procedures, and Microsoft SQL Server is no exception. SQL Server has capabilities for full and differential backups as well as a backup process for transaction logs. These procedures can be used in combination to ensure limited downtime should your database suffer from an outage or critical, unrecoverable crash.

Full Backups vs. Differential Backups

Before creating a backup, it's important to know the different types. There are three types: full, differential, and incremental. SQL Server supports full and differential backups, but some administrators incorrectly call differential backups "incremental." There is a distinct difference between the two, however, and it affects the way databases see backup data.