Ace the Veeam Certified Engineer Test 2026 – Energize Your IT Future!

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If you change compression or deduplication settings in an existing job, which backups are affected?

Only backups created after you set the new settings

Compression and deduplication settings are applied when the backup job runs, not retroactively rewrite existing files. Changing these options affects data processed in future runs, so only backups created after you apply the new settings will reflect the change. The backups that already exist were produced with the old configuration and remain unchanged. When the job runs next, any new full or incremental backups will use the updated compression and deduplication settings.

All existing backups

No backups

Backups created at the next restore operation