Use this tag for question related to Azure Backup Vault, which are based on Azure Service Manager, were the first version of the vault. Recovery Services vaults, which add the Azure Resource Manager model features, are the second version of the vault.
If you still have Backup vaults, they are being auto-upgraded to Recovery Services vaults. By November 2017, all Backup vaults have been upgraded to Recovery Services vaults.
Recovery Services vaults are based on the Azure Resource Manager model of Azure, whereas Backup vaults were based on the Azure Service Manager model. When you upgrade a Backup vault to a Recovery Services vault, the backup data remains intact during and after the upgrade process.
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