Compressions

Compression type defines the compression method used during a backup job for the corresponding backup set. The Compression Type can be changed at anytime (e.g. after backup set creation or even after a backup job) unless the compression type is fixed as in a pre-empted backup set. If the compression type is changed, the new compression method will take effect on the next backup job run.

There are four compression types available. By default, newly created backup sets are configured to use "Fast" compression type for all SFTP/FTP, cloud destination and %cbs_name%. While for local destination, the default is "Fast with optimization for local". Basically, there is a trade off between Compression Type and CPU usage.

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For File, VMware ESXi/vCenter, and Hyper-v backup sets. If OpenDirect, Granular Restore, or Run Direct is enabled, then the compression type is automatically set to "No Compression" in order to ensure optimal restore performance.