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iop87
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Initial Backup Copy Job interrupted, first Incremental much bigger

Post by iop87 »

Hi Fabian

I think now it works. Thanks.

Other Question: In my initial Backup Copy the full backup from a vm was no transfered completely (network connection interrupted and then => the file size is to small). But i see the next transfered incremental was much bigger than a "normal" incremental of this vm.

Then in the backup explorer i see only the incrementals and not the initial full backup. And I can see the files from the vm in the file explorer, i think all is ok....

Veeam does not retransfer the initial full backup until its completely transfered? Is my backup chain in this case ok?

Regards, iop87
Mildur
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Re: Initial Backup Copy Job interrupted, first Incremental much bigger

Post by Mildur »

Hi iop87

I split your topic from the other. We should use dedicated topics per question.
An unfinished incremental backup copy job will transfer remaining data in it's next session.
Then in the backup explorer i see only the incrementals and not the initial full backup. And I can see the files from the vm in the file explorer, i think all is ok....
Veeam does not retransfer the initial full backup until its completely transferred? Is my backup chain in this case ok?
I'll expect that everything is ok. Can you restore from it?

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Fabian
Product Management Analyst @ Veeam Software
iop87
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Re: Initial Backup Copy Job interrupted, first Incremental much bigger

Post by iop87 »

Hi Fabian

I can restore files from the incremental via the file Browser. So i think it's ok.
In my case the initial full backup was interrupted so, the next incremental will have all the data thats not in the initial full?

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Re: Initial Backup Copy Job interrupted, first Incremental much bigger

Post by iop87 »

As you wrote I mean the Initial Backup Copy Job was interrupted, the backup job was always completely ok.
Mildur
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Re: Initial Backup Copy Job interrupted, first Incremental much bigger

Post by Mildur »

Hello

Can you share with me the following information?
- type of backup copy job (immediate, periodic)
- backup format (per job or single file backup, per machine)
- Veeam version (v11 or v12)

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Fabian
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iop87
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Re: Initial Backup Copy Job interrupted, first Incremental much bigger

Post by iop87 »

Hi Fabian

-Periodic
-single file backup
-v12

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Mildur
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Re: Initial Backup Copy Job interrupted, first Incremental much bigger

Post by Mildur »

Hi Iop87

Thank you.

Are you sure? V12 doesn't allow single file backup for new or upgraded copy jobs. Only legacy backup copy jobs may still use Single File Backup.

If it's a legacy backup copy job, then I can confirm the behavior. Completely transferred initial backup of a machine will already be stored in the VBK file. Interrupted initial backups from other machines will be stored in the first VIB file.

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Fabian
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iop87
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Re: Initial Backup Copy Job interrupted, first Incremental much bigger

Post by iop87 »

Hi Fabian

-Periodic is correct.
-single file backup i misunderstood you: I mean I get one file per vm from the backup copy job (per machine backup? backup job and backup copy job was completely new configured with a fresh installation of v12)
-v12 is correct

Thanks, iop87
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Re: Initial Backup Copy Job interrupted, first Incremental much bigger

Post by iop87 »

Any news here?
Mildur
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Re: Initial Backup Copy Job interrupted, first Incremental much bigger

Post by Mildur »

Hi

Yes. I checked the behavior in my lab.
There must be a vbk file. The restore point in the vbk file is marked as incomplete.
In the copy session after the failed backup copy, a VIB file is created. It contains the rest of the copied restore point.
For my test, I took the disk offline.

Image

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Fabian
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Re: Initial Backup Copy Job interrupted, first Incremental much bigger

Post by iop87 »

Yes i have also a vbk file (but it is to small for a full backup).
But so then it's all ok.

Thanks!
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Re: Initial Backup Copy Job interrupted, first Incremental much bigger

Post by iop87 »

Again a question about the still same situation: Backup Copy to rotated disks.

At the moment I see the following structure on the first disk (note date time and vm size). This are the only files for VM-0001.

VM-0001.vib 13.05.2024 690MB
VM-0001.vib 14.05.2024 780MB
VM-0001.vib 15.05.2024 390MB
VM-0001.vib 16.05.2024 480MB
VM-0001.VBK 17.05.2024 18'000MB

The initial vbk was deleted per retetion policy.

But is that ok??? I'm a littlebit confused.... Thanks
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Re: Initial Backup Copy Job interrupted, first Incremental much bigger

Post by iop87 »

Does anyone know if this is ok or a mistake?

What I also do not understand in our case we use 2 rotated disks. Which we change weekly.
Sometimes VBKs are created (which are usually as large as a full backup) and then again only VIBs?
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Re: Initial Backup Copy Job interrupted, first Incremental much bigger

Post by Mildur »

Hi iop87

Backup Copy to rotated disk is forever incremental copy.
I assume, the date shown in your list is the "last file modified date". Which makes sense with Forever Forward Incremental.
With Forever Incremental we merge the oldest incremental with the VBK file. That's why we change the VBK file on May 17th. But the restore point in that VBK file should still be the one from May 12th.

Feel free to open a support case to confirm my assumption.

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Fabian
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Re: Initial Backup Copy Job interrupted, first Incremental much bigger

Post by iop87 »

ok thanks, can you say something about my second question?
Mildur
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Re: Initial Backup Copy Job interrupted, first Incremental much bigger

Post by Mildur »

Creation of "sometimes fulls" is explained in the user guide:
https://helpcenter.veeam.com/docs/backu ... -copy-jobs
When the drives are swapped, the behavior depends on how you have configured the repository:
1.) If you have chosen to continue an existing backup chain, the following applies:
1a.) If the attached drive is empty, Veeam Backup & Replication creates a full backup on it.

1b.) If there is a full backup or a backup chain on the drive, Veeam Backup & Replication creates a new incremental backup and adds it to the backup chain. The latest incremental backup existing in the backup chain is used as a starting point for the new incremental backup. If the existing backup chain is not consistent, Veeam Backup & Replication starts the backup chain anew. It creates a new full backup file on the drive, and this full backup is used as a starting point for subsequent incremental backups.

2.) If you have chosen to delete the backups existing on the drive (all backups or backups created by a specific job), Veeam Backup & Replication deletes the existing backup chains. Then Veeam Backup & Replication starts the backup chain anew.
I can't say which one of the situation you are facing in your environment. You must contact our customer support team if it doesn't work as explained in our user guide.

Best,
Fabian
Product Management Analyst @ Veeam Software
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