Storage for Backups
The following table lists the structure that is created and maintained by Veeam Backup for Microsoft 365 in object storage where you store your backups. You can use S3 Compatible object storage, Azure Blob Storage Hot/Cool access tiers, Amazon S3 Standard and Amazon S3 Standard-Infrequent Access storage classes for this purpose.
Note |
Veeam Backup for Microsoft 365 does not support this structure for Azure Blob Storage Archive access tier and all Amazon S3 Glacier storage classes. You cannot target a backup job at a backup repository extended with such object storage. |
Directory | Description |
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<bucket_name/container_name> | A bucket or container name. Buckets and containers must be created in advance using the cloud provider tools. Veeam Backup for Microsoft 365 does not support creating new buckets or containers. |
<bucket_name/container_name>/Veeam/Backup365/ | A set of mandatory folders created by Veeam Backup for Microsoft 365. |
<repository_folder_name> | A repository folder that you create when adding a new object storage. For more information on how to add a new object storage, see Adding Object Storage. |
<repository_folder_name>/CommonInfo | Contains the following directories and blob files:
Both directories keep a blob file that contains a list of available restore points. Each blob may store up to 100,000 records after which another blob file is created.
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<repository_folder_name>/CriticalDataBackup | Contains identical copies of the following blob files:
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<repository_folder_name>/Encryption | Contains the BackupKeys blob file that holds information about the encryption keys that you set during extension of a backup repository with object storage. For more information on how to extend a backup repository with object storage, see Specify Object Storage. |
<repository_folder_name>/Organizations | The root folder that contains backed-up Microsoft organizations. Each organization is kept in its own folder with a unique identification number. |
Organizations/<organization_Id> | The <organization_Id> directory contains the following blob files:
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<organization_Id>/Mailboxes/<mailbox_Id> | The Mailboxes directory contains backed-up Exchange mailboxes. Each mailbox is saved under a unique identification number to the <mailbox_Id> directory. The <mailbox_Id> directory contains the following directories:
For example, you may have renamed a folder. In such a scenario, after the subsequent backup session, Veeam Backup for Microsoft 365 will update information about the renamed folders and save each new folder version to the FoldersHistory directory.
For example, attachments are saved to this folder.
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<organization_Id>/RestorePointObjects | Contains blob files with a list of objects (mailboxes, sites, and other) that were backed up by Veeam Backup for Microsoft 365 per a particular restore point at the specified point in time. |
<organization_Id>/Sites | Contains a blob file with a list of backed-up SharePoint sites. |
<organization_Id>/Teams | Contains the following directories:
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<organization_Id>/WebData | Contains data that is required to restore SharePoint or OneDrive items. |
<organization_Id>/WebBackups | Contains a list of SharePoint sites to be loaded into the Veeam Explorer for Microsoft SharePoint scope. |
<organization_Id>/WebPreview | Contains backup dates of SharePoint sites. Required for a snapshot-based retention policy. |
<organization_Id>/Webs/<web_Id> | A set of folders that contain backed-up SharePoint sites and OneDrive Items. The <web_Id> directory contains the following directories:
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<repository_folder_name>/RepositoryLock | Contains a lock file that tells that this storage is already an extension to a backup repository. Object storage can only be owned by one owner (a backup repository) at a time. For more information on how to extend a backup repository with object storage, see Specify Object Storage. |