We are planning for a shutdown of data center in our primary data center for a power activity,so i thought of instead of shutting down the exchange servers on primary site i will activate the database on DR exchnage server below is our setup.
Primary site has 2 mailbox server and 2 CAS server and DR site has one mailbox and one CAS server .
i plan to activate all the database to DR mailbox server and shut down the 2 mailbox and 2 CAS server in primary site,i am just worried while starting the server again in primary site after we finish the activity,the if there could be any network loss between primary site and DR site and the database may get activated in the primary site as well as DR site,
please let me know what is the best way and recommendation for this.
You should enable DAC mode. Before doing any failover. This prevents split brain syndrome. If it is already enable. Then follow Simon suggestion above.
How to enable DAC?
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