![]() ![]() Veeam reads data blocks during the backup, calculates a unique hash for those blocks, and stores all identical blocks into the backup file for that session only once. How does it work?ĭeduplication is performed both by the source proxy (only for virtual disk currently being processed) and the target repository (for all virtual disks of all VMs in the job). Is identical, but is less useful for incremental data. This is primarilyīeneficial when VMs are deployed from the same template since the base image Inside a single VM disk or across multiple VMs in a job. Veeam deduplication is based on identifying duplicate blocks To be stored on disk by detecting redundant data within the backup and storing The primary purpose of deduplication is to reduce the amount of data that has Veeam Backup & Replication attempts to use reasonable defaults based on various factors but there can be cases when leveraging settings other than default might be valuable. The main goal of these techniques is to strike the correct balance between the amount of data read and transferred during backup as well as what is stored on the backup target while providing acceptable backup and restore performance. Veeam Backup & Replication takes advantage of multiple techniques for optimizing the size of stored backups, primarily compression and deduplication. Deduplication and Compression Storage Optimization Overview ![]()
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