Data Backup Software and Service

As many people pay more and more attention to secure their data, multiple methods to backup appears: Full Backup, Daily backup, Differential backup, Incremental backup, Network Backup, Dump Backup, etc. And this article will give you a brief introduction about differential backup.

Differential backup is a process of backing up only those files that were created or changed since the last full backup. It is a kind of backup that copies all files that have changed since the last full backup. Each differential backup will include all files in previous differential backups since the full backup so to restore a version of a file, you only need to search the full backup and the relevant differential backup.

A differential backup is not as fast as an incremental backup, but it is faster than a full backup. It requires more storage space than an incremental backup, but less than a full backup. In other aspect, a differential backup requires more time to restore than a full backup, not as much time to restore as an incremental backup.