Incremental Backup And Restore

[Sumit Kumari]

Hi All

Can  anyone tell me how to validate incremental backup and is incremental restores available in velero?

Thanks

Sumit

[drag...@gmail.com]

Hi,

I know this is very old post but I thought of replying in case others land here from search engines.

It would help if the question is clarified but as I understand it, you want to know if Velero has incremental backups and restores. There are two kinds of Velero backups where data movement occurs. The first is the bundle of all the resource specs that gets uploaded to an object store. There is no incremental backup for this upload and a new bundle is built and uploaded with every backup. But since the total size of this bundle is not going to be huge, it should not be a concern.

The second type of backup where data movement occurs is either Restic or Kopia backup of your PV data. In this case as well, Velero itself doesn't do anything special for incremental backups but Restic/Kopia would only transfer data that changed since last backup. They do this by reading the source blocks and checking if they exist in the target backup repo. So you are getting incremental backups of PVs.

With PV restores, Restic/Kopia would try to restore all the data and with resource restores, Velero restores only those resources that are missing at the target (by default). You can enable "overwrite" option to change this behavior though. For more details, see:

    https://velero.io/docs/main/restore-reference/#restore-existing-resource-policy

Hope this helps.

Thanks,

Raghu (https://cloudcasa.io)