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GuillermoN
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Veeam Backup Copy - How it works

Post by GuillermoN »

Hello! I need a some help to understand how veeam handles full backups in backup copies jobs. I was reading the official documentation and it is still not clear to me: https://helpcenter.veeam.com/docs/backu ... ml?ver=100
Sorry for this very basic question. As I could understand, In a backup copy job veeam takes a full backup only the first time and then incrementals backups. Is this correct?
What I could see in the repository, is that veeam took an incremental backup and then modified the full backup.
Image

Thanks in advance!
dalbertson
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Re: Veeam Backup Copy - How it works

Post by dalbertson »

Hi, when creating a copy job default is a forever forward where it takes a full backup and then incremental after that. But it depends on the job it is copying, if its reverse incremental then the copy job will be as well.

You can learn a bit more from this link https://helpcenter.veeam.com/docs/backu ... ml?ver=100

https://helpcenter.veeam.com/docs/backu ... ml?ver=100
Here are details about how forever forward works.
Dustin Albertson | Director of Product Management - Cloud & Applications | Veeam Product Management, Alliances
PetrM
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Re: Veeam Backup Copy - How it works

Post by PetrM »

Hello,

The format of backup copy chain does not depend on source job chain format, it is defined at the level of backup copy job settings.
By default, backup copy job uses forever forward incremental chain but you can switch chain format to simple forward incremental mode as long as you check this option in backup copy job settings.

GuillermoN wrote:What I could see in the repository, is that veeam took an incremental backup and then modified the full backup.
This is the behavior by design. Veeam merges data blocks from the first incremental backup file into the full backup file in order to comply with retention policy settings.
Please look at this article on our help center: the step 4 describes the process of merge.

Thanks!
GuillermoN
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Re: Veeam Backup Copy - How it works

Post by GuillermoN » 1 person likes this post

Thank you very much for the information. It is very helpful for me!
Regards!
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