Best practices depends on several factors: type of application, server role, capacity of storage device, network performance, rotation strategies Office Office Exchange Server. Not an IT pro? Windows Server TechCenter. Sign in. United States English. Ask a question. Quick access. Search related threads. Remove From My Forums. Answered by:. Archived Forums. Backup — Windows and Windows Server.
Sign in to vote. Hi I am planning to set backp for my domain. Which backup is the Best backup fo my Windows server ? Saturday, April 24, AM. What is backup? Types of backups Normal backup The normal backup is…normal surprised? So, what does this mean? It simply means that it copies all the files you have marked to be backed up, and marks the files as having been backed up.
You also only need the most recent copy of the backup file other types of backups requires several files, see below to restore.
This type is usually what you use the first time you backup files. Incremental backup The incremental backup backs up only those files that have been created or changed since last incremental or normal backup. It also marks the files as having been backed up. A combination of Normal backups and Incremental backups is common, and also a very good combination.
It also requires the least amount if storage space and is fast for backing up the data. Differential backup The differential backup is similar to the incremental backup and only copies files that have been created or changed since the last normal or incremental backup. This is because differential backups does not mark files as having been backed up. But on the other hand it is faster to restore data because all you need is the last normal backup and the last differential backup.
Copy backup A copy backup copies all the files you have selected, but does not mark the files as having been backed up. This backup type is useful when you must backup single files between normal and incremental backups because it does not affect these operations. Daily backup The daily backup copies all the files that you have selected that have been modified on the day, without marking the files as having been backed up. To use this feature you must use NTFS as file system. System state data You can choose to do a System State backup, and this is very important if you want to be able to get a functional system in the event of a crash.
Restore system state data If you are running in a non-domain environment all you have to do is follow the restore wizard more about this later. There are three different restore methods: Primary restore Normal restore Authoritative restore Depending on what you have to restore, if it must be restored to other Domain Controllers, or if you have more then one Domain Controller you use different methods. Primary restore This is the type you should use when all Domain Controllers are lost and you are building up the domain from backup.
This is also the type you use when restoring a standalone Domain Controller. Normal restore When doing a normal restore, Backup is working in nonauthoritative mode. That means that any data including Active Directory objects will have their original sequence number. This is the number AD replication uses to detect if there are any new objects to replicate to other servers.
So when you use Normal restore any data will appear as old and will therefore not replicate to other servers. If newer data is available, it will of course replicate to the restored server.
This method is used when restoring all but the first replica set and when restoring a single domain controller in a replicated environment. Authoritative restore This is the third method. To perform an authoritative restore you have to run a utility called Ntdsutil. This must be run after you have restored the System State data, but before you restart the server.
When you perform this kind of restore the sequence number of Active Directory objects are changed so that it has a higher number. This is a little bit difficult to understand, but if you compare this to Normal restore, Normal restore will always mark objects as old, and authoritative restore will always mark objects as new. So simply said, use Authoritative restore when you have changed something and the change has been replicated to all other servers and you want to undo the change.
Backup data We will use this backup scheme to create our backups. Day Type of backup Friday night Full backup normal Saturday night Incremental, files and folders only Sunday night Incremental, files and folders only Monday night Incremental, files and folders only Tuesday night Incremental, files and folders only Wednesday night Incremental, files and folders only Thursday night Incremental, files and folders only Designing a good backup scheme is not always as simple as you might think.
Here are some general rules: Backup when the load is as low as possible If System State data is changed frequently, back it up more often If files and folders are changed often, perform Full Backup more often You will most likely have to perform backups beside this scheme. When doing this, if it is possible, do not use Full Backup or Incremental Backup because it can disturb the normal backup scheme files are marked as already backed up.
Consider what you think is most important, a fast backup or to be able to restore fast, you cannot have both these features. Three of the most commonly used commands in the recovery console are:. To view all recovery console commands, enter the recovery console and type help at the command prompt.
As we have seen, planning is the most essential part of backup and recovery. Never exclude the possibility of a worst case scenario and always compare the value of your data against your available options.
Remember that a good back up solution must be a crucial part of your tasks as an administrator. It can decrease down time and protect data integrity. All things considered, backup remains your top method of protection against a Windows disaster.
Great article, I'm a I. T Manager of a large manufacturing company and looking for a new centrally managed backup solution. I currently have 7 physical dell servers and 4 virtual host running Vmware. Can anyone reccomend a good solid solution. Your email address will not be published.
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About the Windows Backup Utility There are many third-party backup software packages out there — HP, Veritas, and CA being some of the big name players on the market. Post Views: 3, Cecil Riola June 11, at pm.
Leave a Reply Cancel reply Your email address will not be published. Join Our Newsletter Learn about the latest security threats, system optimization tricks, and the hottest new technologies in the industry. I understand that by submitting this form my personal information is subject to the TechGenix Privacy Policy. Once the file has been backed up, the archive attribute is cleared and only set once the data has been modified again.
Backs up all files that have been selected, despite the archive attribute setting. Once the file has been backed up, the archive attribute is cleared until the file is modified. When the archive attribute is set again, it indicates that the file needs to be backed up. Backs up files that have changed since the last Full backup. If the archive attribute is present, it means that the data has been modified and files having this attribute set will be backed up.
However, in this case the attribute is not cleared so as to allow other types of backups to take place on this data at a later stage. The archive attribute is not changed, so that other types of backup can be performed on the same data.
Keep in mind: A backup procedure is never considered complete until it has been fully tested. Tape drives are the most common backup media around due to their low cost.
The average capacity of a tape drive is 4 to 10 GB. The drawbacks are that they are relatively slow when compared with other media, and can tend to be unreliable. Disk drives are expensive but very fast compare to tape drives. The disk drive rotates at a very fast pace and has one or more heads that read and write data.
If an organization is looking for a fast method of backup and recovery then disk drives are the way to go — the difference in speed between a tape drive and a disk drive is hours compared to minutes, respectively. They are quite fast, not that expensive and easy to install and carry around. The downside is that the capacity is usually at the time of writing this article not more than 2GB in size. DAT drives are similar to a standard tape drive but they have a larger capacity.
They are fast becoming popular and are slowly replacing the tape drive. Figure 1. Optical Jukeboxes use magnetic optical disks rather than tapes to offer a high capacity backup solution. They are extremely expensive but offer excellent amounts of secure storage space, ranging from 5 to 20 terabytes. A jukebox is a tower that automatically loads internally stored disks when needed for backup and recovery — you just add a certain amount of CDs or DVDs when you first set it up, so maintenance is relatively low.
Figure 2. Autoloader tape systems use a magazine of tapes to create extended backup volumes. If you use an autoloader you will need a third party application that knows how to handle it. By implementing a type library system with multiple drives you can improve the speed of a backup to hundreds of Gigabytes per hour.
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