Hello @ESTHER PAULINE
A common requirement for backup admins is to obtain insights on backups based on data that spans an extended period. Use cases for such a solution include:
- Allocating and forecasting of cloud storage consumed.
- Auditing of backups and restores.
- Identifying key trends at various levels of granularity.
The report that would help you to understand the storage consumed should be the one you are asking for. Here are the steps to configure reports
- Create a Log Analytics workspace or use an existing one
- Configure diagnostics settings for your vaults
Note: The Recovery Services vault is merely an entry point for Backup reports. After the Backup report workbook opens up from a vault's pane, select the appropriate set of Log Analytics workspaces to see data aggregated across all your vaults.
Summary:
Use the summary tab to get a high-level overview of your backup estate. You can get a quick glance of the total number of backup items, total cloud storage consumed, the number of protected instances, and the job success rate per workload type.
Use this Usage tab to see information and trends on cloud storage consumed at a Backup-item level. For example, if you use SQL in an Azure VM backup, you can see the cloud storage consumed for each SQL database that's being backed up.
Document to refer:
https://learn.microsoft.com/en-us/azure/backup/configure-reports
https://learn.microsoft.com/en-us/azure/backup/configure-reports#usage
Hope this helps!
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