Hi,
we currently have a scenario with two sites (the live office and a redundancy office (for disaster recovery). We replicate all important VMs and data daily to the offsite office so in case something happens, we can easily be up and running again.
Now we are planning to move to O365, using also SSO so users will not be asked for their credentials every time the need to log in. The challenge we are facing is, how will O365 work with such scenario. I mean if we cutoff the live office and turn on the recovery office, the AD will be the one of the previous day. How will O365 tell that the second AD is genuine?
Because of license costs, we cannot afford to have two sites running at the same time. We only can have the main office working and switch on the recovery office only for testing and disaster recovery.
Any help will be appreciated!