We have an AG setup with Primary and secondary replica on same DC, we are planning an migration from one DC to another and the DB size is close to 6 TB we are planning to take the DB Full backup SQL2012 and have it restored on destination SQL2016 as no recovery , and during the cut-over we will have the DB on Primary taken to read only mode ( initiate an DIFF and T-Log )
Since the SQL2012 DB is on AG setup, during cut-over we are planning to suspend the data movement to secondary and we are hoping this will allow the primary db to be taken to read only mode ? as under read-only mode the final diff and T-log backup that we take would be final data to be transferred !!
Has any one taken the DB to read only mode on primary side post suspend data movement ? Please advice if there is any documentation that says DB can be taken to read only mode if we have suspended the data movement , this would help us out in planning with our customer
Regards and Wishes
Eben