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Object Storage Repository Structure

The following structure is created and maintained by Veeam Backup for Microsoft Office 365 in object storage.

Object Storage Repository Structure 

Directory

Description

<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 Office 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 Office 365.

<repository_folder_name>

A repository folder that you create when adding a new object storage repository.

For more information on how to add a new object storage repository, see Adding Object Storage Repositories.

<repository_folder_name>/CommonInfo

Contains the following directories and blob files:

  • [Directory] RestorePoints. Contains information about available restore points for Microsoft Exchange.
  • [Directory] WebRestorePoints. Contains information about available restore points for Microsoft SharePoint and OneDrive for Business.

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 and so on.

  • [Blob file] Organizations. Contains a list of backed-up organizations.
  • [Blob file] RepositoryConfig. Contains extended backup repository configuration such as the retention type and other auxiliary information.

<repository_folder_name>/CriticalDataBackup

Contains identical copies of the following blob files:

  • [Blob file] Organizations. Contains a list of backed-up organizations.
  • [Blob file] RepositoryConfig. Contains extended backup repository configuration such as the retention type and other auxiliary information.
  • [Blob file] BackupKeys. Contains information about the encryption keys that you set during extension of a backup repository with object storage.

<repository_folder_name>/Encryption

Contains a 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.

<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:

  • AccountMailbox. Contains information required to load the backup contents into the Veeam Explorer for Microsoft Exchange scope.
  • AccountWeb. Contains information required to load the backup contents into the Veeam Explorer for Microsoft SharePoint scope.

<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:

  • Folders. Contains backed-up Exchange folders such as Inbox, Drafts, Sent Items, and so on.
  • FoldersHistory. Contains folder changes.

For example, you may have renamed a folder. In such a scenario, after the subsequent backup session, Veeam Backup for Microsoft Office 365 will update information about the renamed folders and save each new folder version to the FoldersHistory directory.

  • ItemsChanges. Contains incremental backup data.
  • ItemsData. Contains blob data of the backed-up Exchange messages.

For example, attachments are saved to this folder.

  • ItemsPreview. Contains required data to load the backup contents into the Veeam Explorer for Microsoft Exchange scope.

<organization_Id>/Sites

Contains a blob file with a list of backed-up SharePoint sites.

<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:

  • Files. Contains files of your SharePoint site.
  • Items. Contains items such as those located under the Subsites and Content folders for SharePoint, and users folders for OneDrive.
  • Lists. Contains SharePoint lists.
  • ListViews. Contains SharePoint list views.

<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 Repository.

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