Backup refers to make a copy of system partition or entire disk so as to it can be used to restore to the original state when system crashes or data loss happens. It can be used to ensure data safety if there is a data deletion or corruption. It can be seen that many server machines have suffered the loss of their important data or files. In addition, due to some reasons, such as virus attack, wrong operations, the system may crash unexpectedly. Under this circumstance, if there is a backed up image file of the system drive, the reinstallation of the operating system as well as some other applications can be easily avoided. Therefore, there is no doubt that backing up has gradually played a very important role in data protection. Usually, there are three types of backup methods: full, differential and incremental backup.
Full backup refers to create a backup of all data, whether it is new added or exists for a long time. Full backup is usually used for the first backup, which means to back up all the data in a given location, such as partition or disk. However, full backup would cost more time and the full backup image file requires more storage space. Luckily, it can be solved by differential backup and incremental backup.
The differential backup just refers to backup the changed or new added files only. It is based on the last full backup. As for its advantage, it can help to improve backup efficiency and reduce storage disk space required by the differential backup image file.
It is very similar to differential backup. Incremental backup refers to back up the new changed, deleted, added data based on last backup, no matter it is a full backup or incremental backup. On the basis of the last backup, there will be a mutual dependent relationship between two files. In other word, each backup will create an image file, and all the image files are related together. The last image file of incremental backup is based on the previous image file. Which means, if you delete a previous image file, all the subsequent image files will be invalid.
How to Set up Incremental Backup for Windows Server 2008?
Windows Server 2008 is different with Windows Server 2003. Windows Server 2003 has built-in tool called NTbackup, which you can use to do backup for the OS. If you want to do a backup for Windows Server 2008 through its built-in tool, you have to add "Windows Server Backup" utility first, and start it again and following the wizard. The operating is complicated. Moreover, it has many disadvantages, for example, it needs a separate disk to run the schedule backup, and it can only backup the local NTFS volume. Considering with those advantages, here we recommend you to use a third party server backup software like AOMEI Backupper Server to setup an incremental backup for Windows Server 2008 or 2008 R2.
Step1. Download, install and launch AOMEI Backupper Server, click Backup and choose the backup type which you want. Here takes System Backup for an example.
Step2. The program will automatically choose system partition and/or system reserved partition (if has) as source location. You just need to select a destination location (external hard drive, network drive, NAS) to save your backup image file.
Step3. There are two ways to set up incremental backup.
Way1: During Backup
The program allows you to create a schedule to backup automatically. You can click "Schedule Off" -> "Advanced settings" where you can choose schedule backup type. By default, Incremental Backup" is choosed.
Way2: After Backup
If you won't want to schedule backup. You also can set up incremental backup after finishing backup. Click "Home" -> "Backup" as below. That is, you could select to perform a full, incremental, or differential backup.
Although incremental backup can save backup time and storage, one thing you need to remember that if you set up a combination of full and incremental backups of your Windows Server 2008. To restore all of your data, you will need not only the last full backup but all chained incremental backups created based on the full backup. For example, if you perfrom a full backup on Monday and then schedule daily incremental backups for the rest of the week, you will need the original full backup created on Monday as well as the six incremental backups created during the rest of the week to restore the entire week’s data. If any incremental backups are losing or damaged, you cannot recover all of your data.