Integrate Veeam Backup for Microsoft 365 with Backblaze B2
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    Integrate Veeam Backup for Microsoft 365 with Backblaze B2

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    Article Summary

    Veeam Backup for Microsoft 365 Version 6.5 or older lets you copy your backups to Backblaze B2 S3-compatible storage.

    If you use Veeam Backup for Microsoft 365 version 7 or newer, you must contact the Veeam support team for configuration assistance. 

    Enable Backblaze B2

    Before you begin: You must have a Backblaze B2 Cloud Storage account. You can sign up here. If you already have a Backblaze account and the left navigation menu contains a B2 Cloud Storage section, your account is already enabled for Backblaze B2.

    1. Sign in to your Backblaze account.
    2. In the left navigation menu under Account, click My Settings.
    3. Under Enabled Products, select the checkbox to enable B2 Cloud Storage.
    4. Review the Terms and Conditions, and click OK to accept them. 

    Create a Bucket

    1. Sign in to your Backblaze account.
    2. In the left navigation menu under B2 Cloud Storage, click Buckets.
    3. Click Create a Bucket.
    4. Enter a name for your bucket.
      Bucket names must be at least six characters and globally unique. A message is displayed if your bucket name is already in use.
    5. Select a privacy setting: Private or Public.
      Files that are in a private bucket require authentication to perform an action, for example, downloading. Public buckets do not require authentication so you can easily share files. You can change a bucket's privacy settings at any time.
    6. If applicable, enable a Backblaze B2 server-side encryption key.
    7. Enable Object Lock to restrict a file from being modified or deleted for a specified period of time.
    8. Click Create a Bucket, and copy the value that is in the Endpoint field; you may need this value for other processes.
    9. Click Lifecycle Settings to control how long to keep the files in your new bucket.

    Create an Application Key

    Application keys control access to your Backblaze B2 Cloud Storage account and the buckets that are contained in your account.

    1. Sign in to your Backblaze account.
    2. In the left navigation menu under Account, click Application Keys.
    3. Click Add a New Application Key, and enter an app key name.
          You cannot search an app key by this name; therefore, app key names are not required to be globally unique.
    4. Select All or a specific bucket in the Allow Access to Bucket(s) dropdown menu.
    5. Optionally, select your access type (Read and Write, Read Only, or Write Only).
    6. Optionally, select the Allow List All Bucket Names checkbox (required for the B2 Native API b2_list_buckets and the S3-Compatible API S3 List Buckets operations).
    7. Optionally, enter a file name prefix to restrict application key access only to files with that prefix. Depending on what you selected in step #4, this limits application key access to files with the specified prefix for all buckets or just the selected bucket.
    8. Optionally, enter a positive integer to limit the time, in seconds, before the application key expires. The value must be less than 1000 days (in seconds).
    9. Click Create New Key, and note the resulting keyID and applicationKey values.
    When you create a new app key, the response contains the actual key string, for example N2Zug0evLcHDlh_L0Z0AJhiGGdY. You can always find the keyID on this page, but for security, the applicationKey appears only once. Make sure you copy and securely save this value elsewhere.

    Configure Veeam Backup for Microsoft 365

    1. Open Veeam Backup for Microsoft 365.
    2. In the left navigation menu, click Backup Infrastructure.
    3. Click Object Storage Repositories, and select Add Object Storage.
    4. Enter a name for your object storage repository, and click Next.
    5. Select S3 Compatible for the object storage type, and click Next.
    6. Select S3 compatible storage system settings.
      1. Enter the S3 service endpoint (for example,
      2. Enter the data center region (for example, us-west-002).
      3. Click Manage cloud accounts to add your credentials.
      4. Click Add, enter your Backblaze B2 application key and key ID, and click OK.
      5. Click OK, and click Next.
    7. Select your desired bucket, create a folder inside of the bucket for your repository, and click Finish.
    Select Make backup copies immutable for the entire duration of their retention policy to ensure the protection of backup copies against accidental data deletions and malware activity. This setting is required for buckets that have versioning enabled (all Backblaze B2 buckets have versioning).

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