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Using larger block size can yield up to 3.5x faster performance. We recommend at least 4MB block size.
This is done in the backup job properties → Storage section → Advanced Settings → Storage Tab.
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Please be aware that backup copy jobs inherit the Storage optimization of the backup job its backing up, you will not be able to modify it on “backup copy” type jobs. |
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Setting the block size to 8MB for best performance requires a PowerShell script. Veeam provided us with an official tool to change storage block size on all backup jobs using a specific object storage backup repository. You need to run this script from the VBR PowerShell console. I have provided the manual steps as well in case you wish to only do it against 1 specific backup job in your environment. |
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