Veeam Backup & Replication 9.5 Update 4
User Guide for Microsoft Hyper-V
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Veeam Backup Validator

In some cases, a backup can get corrupted due to accidental changes in the backup file data. For example, the file can be damaged after transfer over the network or from hardware failures on the backup storage side. With Veeam Backup Validator, you can quickly verify the integrity of any backup file, without extracting the VM data from the archive.

Veeam Backup Validator is a command-prompt CRC check utility that tests a backup at the file level. For integrity validation, Veeam Backup Validator uses the checksum algorithm. When Veeam Backup & Replication creates a backup of a VM, it calculates a checksum for every data block in the backup file and attaches these checksums to the data blocks. Veeam Backup Validator re-calculates checksums for data blocks and compares them against the initial checksum values. If the results match, the backup file is viable. This works similarly to the backup file integrity check performed at SureBackup.

Veeam Backup Validator is located in the installation folder of Veeam Backup & Replication — by default, %ProgramFiles%\Veeam\Backup and Replication\Backup\Veeam.Backup.Validator.exe.

If the default path was changed, you can find the actual path in the registry value: [HKEY_LOCAL_MACHINE\SOFTWARE\Veeam\Veeam Backup and Replication] CorePath.

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