Differential backup is based on the latest previous full backup. It only backs up the changed data since that full backup. By contrast, incremental backup is based on the most recent previous backup of any type. It backs up the changed data since last backup.
To restore a differential backup requires a specific differential backup and the latest full backup before it. The amount of changed data since last full backup decides the size of differential backup. If you create a series of differential backup then the size of backup will increase gradually. We recommend you have a new full backup at intervals, then the size of differential backup can reduce much. And it will take much less time for you to restore the differential backup.
This article is about the issue of differential backup on Windows Server 2008.
The previous version Windows Server 2003 uses Windows Backup (Ntbackup.exe) feature to differential backup Server data. Windows Server 2008 introduces new technology - the Windows Server Backup feature which provides a backup and recovery solution for Server 2008 users.
Note: You must be a member of the Administrators group or Backup Operators group to use Windows Server Backup. If you are a current user of the previous backup feature (Ntbackup.exe), and plan to switch to the new Windows Server Backup, you might meet following problems.
To access backup and recovery tools for Windows Server 2008, you must install the Windows Server Backup, Command-line Tools, and Windows PowerShell items first.
Note: Differential backup is based the most recent full backup, so you should have a full backup of your Server first.
You can use EaseUS Todo Backup Server to back up a full server, selected partitions, files or folders. You can also schedule backups to run automatically. You can recover backup file in case of disasters like hard disk failures. You can perform one click system backup and recovery, which will restore your complete system onto the new hard disk or overwrite the original one.
It supports backup to local hard disk, network, tape, CD/DVD and other removable storage device. You can store your backup copy in a separate location which will be easier for you to restore when met Server hardware or system failure.
You can also restore Server to dissimilar hardware to migrate Server data without Server reinstallation. Besides, it also provides disk and partition clone to upgrade hard disk or transfer data.
Other backup option like compression, encryption, image splitting and check image integrity are all available in this differential backup software.
Free download it to have a try.