How to backup Microsoft 365 data to Wasabi cloud storage.

Wasabi is an Amazon S3 compatible cloud storage service with more affordable pricing.


Wasabi has a minimum storage retention policy , and it charges deleted files. What's more, when a file was modified or overwritten in Wasabi, the original copy of this file will be treated as a deleted entry and will result in unexpected cost. CubeBackup employs SQLite files to keep the histories of the backup files, and these SQLite files are modified frequently during the backup process, which may result some unexpected cost in Wasabi.

As an S3 compatible cloud storage, Wasabi's UI is similar to Amazon S3. First create a bucket and an Access key.

Create a Wasabi bucket

  1. Log in to the Wasabi console .

  2. Create a bucket On the Overview page, click CREATE BUCKET. In the dialog pop-up, enter a bucket name and select a region for the bucket, then click the CREATE BUCKET button.

  3. Create an Access key On the Access Keys page, click +CREATE NEW ACCESS KEY. Once the access key is successfully created, a dialog will pop up, showing the created key and its Secret key.

Tip: Please keep the access key dialog open, or copy keys to clipboard. The Access key and its Secret key will be needed later in CubeBackup's configuration wizard.

Setup CubeBackup with a Wasabi cloud storage

After creating the bucket and the Access key, go back to CubeBackup setup wizard:

  1. Select "Amazon S3 compatible storage" for the Storage type.
  2. Select a local directory for the Data index path. Data index acts as cache for backup data, and a local SSD is strongly recommended for storing data index. For more information about the data index, please visit here .
  3. In the Endpoint field, enter the appropriate request URL for your bucket:

    • If the bucket was created in the us-east-1 region, use:
    • If the bucket was created in the us-east-2 region, use:
    • If the bucket was created in the us-central-1 region, use:
    • If the bucket was created in the us-west-1 region, use:
    • If the bucket was created in the eu-central-1 region, use:
    • For Wasabi service URLs in additional regions, refer to Wasabi's official documentation here .

  4. Enter the name of the bucket you just created in the Bucket field.

  5. Copy the Access key created in the Wasabi Console and paste it in the Access key ID textbox, then copy the Secret key value and paste it into the Secret access key textbox.

  6. If you want your backups to be encrypted, make sure the Encrypt backups option is checked.

    Before clicking Next in the CubeBackup setup wizard, we recommend that you download a copy of the encryption key file using the link provided and store it in a separate, safe location. The key is generated locally and is not stored anywhere except on your servers, which means that we at CubeBackup cannot help you if your key file is lost or damaged through server corruption or natural disaster. For more information about rebuilding your CubeBackup instance in the event of a disaster, see: Disaster recovery of a CubeBackup instance .

  7. Click Next.

configure Wasabi storage in CubeBackup for Microsoft 365

Go through the rest of CubeBackup configuration

You can continue to complete CubeBackup's setup wizard by following the configuration guide.