Our current production server runs on SQL Server 2014 AlwaysOn AG. We are planning to upgrade it to SQL Server 2017 AlwaysOn.
Due to the configuration issues with the presentcluster, we can not use the present cluster. The production server has 52 databases with a total size of 2 TB. The database servers an online system,so minimum downtime is the core requirement.
Our initial plan is to go for a side by side approach
1. Provision 3 SQL server 2017
2. Create new cluster
3. CretateAG4. Run both cluster side by side. On the <g class="gr_ gr_41 gr-alert gr_gramm gr_inline_cards gr_run_anim Punctuation only-ins replaceWithoutSep" data-gr-id="41" id="41">switchover</g> day change all the application configuration to point to thenew cluster.
My questions are
1. Is it possible to add Primr_new(part of 2017 cluster) asa sync subscriber of Primary (part of the existing cluster) and then add 2ndry_new as sync subscriber to Primary_new
2. Are there any approach to sync data between two cluster
Thanks