We have 2 Exchange 2019 Servers.(DAG) single site 2 nodes only
Server1 infected with ProxyShell infection (CU8)
Server2 infected with ProxyShell and halfnium Issue as well ( we had shutdown this server for 12 days now) we installeed CU10 but still same.
now i need to rebuild both exchange servers one by one taking down time
Step1 : Rebuild server1 from recover server mode (downtime will be taken ) email services will be down
Step 2 : redbuild server 2 from recover server mode
Question1 : we should keep the dag or not
Question2 : we can attach same Storage to the new VMs with fresh OS disk correct? both servers?
Question3 : server2 will start replicating the old DBs ( how much days lag can be ?) 12 days its not being repliated now