We've recently implemented Veeam replica, and one thing I noticed during testing is that when you go to fail back to production, it occurs in 2 passes. Pass 1; the running replica is online and able to service requests whilst the delta is being compared to the original source VM, and Pass 2; the running replica VM is powered off, and the final delta sync to the original source VM is made, after which the original production VM is powered back on.
What would be nice, in terms of new features is before Pass 2 is started - which is the start of the outage to the server - is some sort of dialog that pops up so that you can schedule the outage with the business etc.
I understand that it's likely not ideal to be in a 'partial failback' state (i.e. between Pass 1 and Pass 2) for very long, but in terms of co-coordinating outages this would be great.
End of the day I also understand that it's difficult to predict how long the failback to production will take, as factors such as storage speed, amount of changes to the system during in failover state, time spent in failover state etc come into play but from an outage to the business perspective it would be great to be able to communicate when, and approximately how long, the outage will be.