How backup exec and scom works with doubled data


I want to to know how "windows system center operation manager" and "Backup Exec" works with doubled data.
For example I want to backup disk C, D, E and also shared data - lets say S:\. Now some data on disk S:\ are files shared from same server, let it be disk "D:\data\some data". When data is being backed up, do software knew that S:\ and "D:\data\some data" are the same, and just compress them in some way - something like deduplication, or any other compression - or just backing them up twice?

Same goes with SQL - with Backup Exec SQL agent we make back up of our  databases and also we back up previously made copies which are stored on some local hard drive (which might be the same).
Maciej KoskaAsked:
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David Johnson, CD, MVPRetiredCommented:
SCOM and BackupExec have nothing in common

If you have 2 paths to a file and you ask the backup software to backup both paths you will copy the same file twice.
BE doesn't really like backing up CIFS shares, whether they are shared from the same server or a remote one. When you connect to a share it is at the level of the user that is logged on locally, and BE runs on a different account so those shares aren't mounted. may help.
Maciej KoskaAuthor Commented:
Let me clarify.

The question is a general one, although i applies to both poroducts, as they both use agents to backup for instance sql databases.

How will any of the products backup data:

1. if a database it is selected with the agent
2. and then again as regular file on hdd.

Will it use twice the hdd space to store the backed up data ?

The same goes with shares. In scom you can select shares as a backup selection, and then when you select the directory on the hdd that contains the shares, will it be backuped twice using twice the storage space ?

David Johnson, CD, MVPRetiredCommented:
System Center Operations Manager does not do backups
System Center Data Protection Manager does do backups

Yes the data will be backed up twice (don't backup shares shared to you but backup the Original location)

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BE automatically skips Exchange, SQL, sharepoint etc. raw files because it knows it has to use the right agent. You can turn that functionality off but it's not advisable.
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System Center Operations Manager (SCOM)

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