This is a user-to-user forum, and is not an official connection to Astaro. Your reseller or Astaro sales should be able to provide an answer to your question. In any situation where no downtime is acceptable, I'd suggest buying a second unit to run as a Hot-Standby.
Cheers - Bob
PS I saw that you had realized that your first post was in the wrong forum, so I deleted that one for you.
