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Veeam Backup & Replication • Re: Reversed incremental backup mode

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If you do a forward incremental with periodic synthetic full backups, there is no merging, and the creation of the periodic synthetic full backup is a seconds or less long process that involves the creation of a new "file" as described above, which is a list of blocks, that does not actually copy any data and does not take up any more space, rather it serves as a sort of grouping of the data being retained, allowing the older backup files to be deleted without performing the merge process.
But if you do a forward incremental with periodic synthetic fulls (in other words, NOT a Forever Forward Incremental), you end up with multiple Fulls in your repository. Assuming you're using block cloning (ReFS or XFS), this shouldn't cause an uptick in actual space consumed, but it DOES reflect on quotas configured for the customer.

Statistics: Posted by RubinCompServ — May 05, 2025 2:56 pm



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