repository used space

[mporliod]

HI have a question, I have a physical windows server with the role of repository, there is also a veeam server installed.
I created 3 repositories (path) in the same server, I don't understand why the used space exceeds the capacity of the repositories .... how is this possible?
for example a repository1 capacity 15 TB , Free 918,9 GB , used space 40,6 TB

[Mildur]

Hi

It seems that you are using a reFS or XFS based backup repository.
This means that our jobs are using block cloning (FastClone) to create a synthetic full backup. Instead of saving a complete full backup on disc, Veeam creates a new full backup file that references to already unchanged blocks on the disc from the previous backups.
The full backup takes only as much space as the changed data since the previous incremental backup. It's reusing the same block for multiple backup files. That's why used Space is lower than the available backup files size.

https://helpcenter.veeam.com/docs/backu ... ml?ver=110

Thanks
Fabian

[mporliod]

I confirm that the backup volume is of type refs, it is a backup copy job with GFS 4 weekly and 12 monthly, is the fastclone to be enabled as an option?

[Mildur]

FastClone is automatically used on reFS volumes for synthetic full backups.
You don't enable it.

Thanks
Fabian