Hey guys, I have a question.
What kind of backup does veeam create, transactionally consistent or crash consistent backup? what is the difference between them?
Best answer by vNote42 11 October 2021, 10:37
Both are possible with Veeam.
Application aware backups are transactional consistent. You will use them for applications like databases or exchange to be sure that the application is recoverable to a consistent state with all transactions in a defined status.
The “normal” snapshot backups are crash consistent. You will use them for all other systems and applications where it does not matter that every single action is in a defined status.
You can do (I assume vSphere Backup jobs)
To simplify it even further
Crash Consistent = state of the machine at the time when the VM was powered off e.g. Any data/transactions held in memory is/are lost
Transactional Consistent = Veeam instructs VM to commit data/transactions to disk, before taking the backup
This one is still relevant, even 7 years later..
I think everyone has covered it and that blog is still very relevant.
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