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Your Amazon Web Services (AWS) account is used for billing and to manage your Zmanda Cloud Backup subscription.

If you need to change this AWS account for any reason, please follow the instructions below.


  • You purchased ZCB with Amazon S3.
  • You need to change the AWS account associated with your ZCB subscription.

What's going on?

To change AWS accounts, you must cancel your ZCB subscription, and then purchase ZCB under the new Amazon account.

It is important to note that your old backups will not be accessible if you follow these directions. Once the old account is canceled, your cloud certificate is revoked and, after a short time, all data associated with that account is deleted.

  1. If you wish to preserve old backups, download the backup archive(s) via the Restore page in ZCB.
    1. You may re-upload the backup archive to your new account, or store it locally until your new backups are live.
      1. To re-upload, create a new backup set and point it to the directory in which you saved your backups.
      2. Run the backup. ZCB will upload the old backup archive just like any other file.


To cancel your old Amazon account:

  1. Go to: and log in. Click on link that says "View / Cancel Application". 
  2. Scroll down and click on the link that says "Cancel the use of Zmanda Cloud Backup (ZCB)".
  3. Click on "Cancel Application".

To link your Zmanda account to the new Amazon account:

  1. Go to the Zmanda Network and login.
    1. You must keep this tab open during for steps 2, 3, and 4.
  2. Finally, go to:
  3. Login and re-purchase ZCB.
  4. You will then be re-directed to the Zmanda Network. Wait for Amazon to verify your subscription.
  5. Once verified, download the new S3 certificate and import it into ZCB.