How to perform separate backup for a specified role on the server (1)

Back up the server and verify the old saying "Do not put all the eggs in one basket ". The basket here does not refer to the backup media or storage location. I am talking about backing up the function roles assigned to the Windows Server 2003 Server.

For example, if a domain controller that stores user data is used as a DHCP server, it is not a good idea to back up only one disk of tape. The more roles a domain controller plays, the greater the risk of doing so. (Domain controllers with multiple roles are not uncommon. They are common in Small Domains and medium-sized enterprises .)

Why is it a bad idea to back up a domain controller that acts as a data server, DNS server, WINS server, DHCP server, and print server? The main reasons are as follows:

Your system has a dead point. If the latest tape backup does not take effect, you have to rely on the backup data of earlier versions to restore all these roles. If the tape cannot be used for restoration at all, the situation will be worse.

Due to the slow speed of tape backup, it is rare to perform full backup. That is to say, when a disaster occurs, the final result is that the backup of key information such as the Active Directory data will be obsolete.

Tape backup is also slow. In a production environment, it is intolerable to use tapes for full recovery.

The synchronization process takes a lot of time.

The remaining active directory servers barely support the increased workload, and the performance is worrying.

In this article, I will show you how to back up a specified role on a Windows Server 2003 Server, that is, backing up a backup separately based on the role played by the Server. In this way, when a disaster occurs and one or more domain controllers need to be restored, the process can be simpler and faster, reducing your stress. At the same time, when frequent tape backup problems occur, or tape backup cannot be selected, Backup Based on the specified role can also become a life-saving tool.

Tip: We recommend that you select removable media instead of tape when backing up a specified role. I found that the value of adding a large IDE device to any server is immeasurable. I use it to store multiple specified role backups, as well as all valuable utility, file files, prompts, and helpful documents.

Activity directory

First, we will introduce the backup of the Active Directory. As you know, if you back up the system status data of the domain controller, the Active Directory will also be backed up. (System status data includes the active directory database, System Startup File, SYSVOL, registry, and other files. The role played by the server determines the content of system status data .), Direct backup of system status data.

As I mentioned before, the most important thing about backing up system status data is to know that if the backup data is earlier than the tombstone time (tombstone lifetime), it cannot be restored. The default tombstone time is 60 days. In other words, after 60 days, the storage will be lost. This is because the life cycle of the tombstone determines the memory time of the DC for the deleted object. To prevent you from using old data that exceeds the specified date for restoration, the system settings cannot use data that exceeds the lifecycle for restoration. Therefore, check the tombstone lifecycle settings on your DC.