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.

As we know there are a lot of backup method to protect our data today, for instance, Full Backup, Daily backup, Differential backup, Incremental backup, Network Backup, Dump Backup, etc. You can choose any approach for each of your projects according to their size and frequency of file modifications, although each backup method has its pros or cons. Here I’d like to give you a brief introduction about incremental backup.

Incremental backup is one of the two most common backup types, the other being full backup. The main difference between full and incremental backup is that incremental backup copies only new and changed files of the selected data array, while full backup does not differentiate backup files and copies all information in full. That means an incremental backup is a backup method where multiple backups are kept (not just the last one). It provides a faster method of backing up data than repeatedly running full backups. These backups will be incremental if each original piece of backed up information is stored only once, and then successive backups only contain the information that changed since a previous backup. That is where it gets its name: each backup is an increment since the most recent backup.

There are many ways available to make you lose your data in computers unintentionally, a child playing the keyboard like a piano, a power surge, lightning, floods. And sometimes equipment just fails, etc. So it is necessary to make backup copies of your data regularly. But the worst thing must be -- it is true that you backed up your data, but when losing them, you find that the backup you ever made cannot be used to retrieve them!! Did you pay attention to protect your backup? Or do you have any ideas about protecting your backup?

Backing up is just the first step. If you don’t want to be settled in this bad condition, here are a few suggestions to help you protect them: