Which Backup Type is Right for You?

Which Backup Type is Right for You?

Backups are one of the most essential parts of data protection strategies. It allows you to restore your data in case of disaster such as hardware failure, software corruption or human error.

There are three main types of backup: Incremental backup, differential backup, full backup. Each type has its own advantages and disadvantages, so it’s important to choose one that suits your needs.

This article will discuss the differences between incremental, differential and full backups. It will also explain the pros and cons of each type of backup, helping you choose the one that suits your needs.

1. Incremental Backup

Incremental backup is one of the most commonly used backup types. It only backs up data that has changed since the last backup. This form of backup is highly efficient as only changes that have occurred since the last backup need to be backed up, saving the user the trouble of backing up the entire data set every time.

Advantages:

• It is the fastest type of backup as it only backs up changes made since the last backup.
• The size of backup files is minimal compared to other types of backups, as  backups only contain changes made since the last backup.

Disadvantages:

• If any file in the backup chain is deleted or corrupted, there is a high probability that the restore operation will not be possible. In this respect, it is the most sensitive backup type.

2. Differential Backup

This type of backup is similar to incremental backups, but backs up all data that has changed since the last full backup. This is slightly slower than incremental backups and faster than full backups.

Advantages:

• Deletion or corruption of any file in the backup chain (except for the full backup, which is the beginning of the chain) does not render other backups in the same chain dysfunctional.
• It is faster than a full backup because only changes made since the last full backup are backed up.

Disadvantages:

• It is slower to take than incremental backups.
• Since the file size of backups is larger than incremental backups, they require more storage space.

3. Full Backup

Full backups are the most comprehensive type of backup. It completely backs up the selected data set every time. This makes a full backup the most reliable type of backup, but it is also the slowest to take.

Advantages:

• Unlike the other two backup types, the backups are not connected to each other by a chain. Therefore, it is the most reliable type of backup.

Disadvantages:

• Even if only a small amount of data has changed, all data in the system needs to be processed. Therefore, it is the slowest type of backup to take.
• It is the type of backup that takes up the most space in storage in terms of the size of the backup taken.

Choosing the Right Backup Type

In this article, the differences between incremental, differential and full backup types are discussed. Additionally, the pros and cons of each backup type were summarized and information was shared to help you choose the backup type that suits your needs.

With this; You should remember that the best type of backup for you depends on your specific needs and requirements.