Why hyper-v replica can not replace backup

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Why hyper-v replica can not replace backup

Sam 789 sam 1

Hi everyone, i'm beginner and i want to know why the hyper-v replica can not replace the backup however the replication allows to create for each replicated VM a replicated hard disk so if i lose my hard disk i can use the replicated hard disk,right?

Thank's.

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Answer 1

Eric Siron 1,586 MVP

If ransomware attacks the source virtual machine, the replication engine will happily allow it to impact the replica virtual machine as well. Ditto for any other type of data corruption. When a user deletes a file, the replication engine deletes it from the replica. If a different user decides a week later that the file should not have been deleted but all you have is replication, then the file is gone forever and the user hates you.
Only independent copies qualify as "backup". Everything else is convenience, fault tolerance, or disaster recovery.

Sam 789 sam 1 Reputation point

2021-08-09T11:34:08.593+00:00

hi, thank you for your reply
and in the case of a scheduled backup, if a file is deleted it will not also be deleted from the backup hard drive?
Eric Siron 1,586 Reputation points MVP

2021-08-09T16:29:00.897+00:00

You need a distinct, independent copy of the data. If the "backup hard drive" overwrites its copy with changes from the data, then its copy is neither distinct nor independent. In that case, the "backup hard drive" is only considered a backup of the physical drive, not a backup of the data contained on the physical drive.

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Why hyper-v replica can not replace backup

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