Backups are saved to a file server that the NSX Manager can access. You must configure the location of this server before a backup can occur.

Note: By design, NSX Manager does not delete backup files on the backup file server. You must manage backup rotation and ensure that the server has sufficient disk space for backups. You might consider running a script that deletes old backups automatically.


Verify that you have the SSH fingerprint of the backup file server. Only an SHA256 hashed ECDSA key is accepted as a fingerprint. See Find the SSH Fingerprint of a Remote Server.


  1. From a browser, log in to the NSX Manager as an administrator at https://<nsx-manager-ip-address>.
  2. Click System > Utilities > Backup.
  3. To provide access credentials to the backup location, click Edit in the upper right of the page.
  4. Click the Automatic Backup toggle to enable automatic backups.
  5. Enter the IP address or host name of the backup file server.
  6. Edit the default port if required.
  7. Enter the username and password required to log in to the backup file server.
  8. In the Destination Directory field, enter the absolute directory path where the backups will be stored.
    The directory must already exist. If you have multiple NSX-T Data Center deployments, use a different directory for each deployment.
  9. Enter the passphrase used to encrypt the backup data.
    You will need this passphrase to restore a backup. If you forget the backup passphrase, you cannot restore any backups.
  10. Enter the SSH fingerprint of the server that stores the backups. See Find the SSH Fingerprint of a Remote Server.
  11. Click Save.
  12. Click Backup Now on the bottom of the page to confirm that files can be written to the backup file server.

What to do next

Schedule automated backups.