Hi,
I have two questions about install and uninstall sql server cluster.
Question 1:
I have a two nodes (node1,node2) sql server 2008 r2 cluster instance sqlinst.
Then first i add two new nodes (node3,node4), install sql server cluster for sqlinst, second upgrade sql server 2008 r2 to sql server 2012 on node3 and node4. At this time sqlinst have 4 nodes: node1 and node2 are sql server 2008 r2,node3 and node4 are sql server 2012.
If i remove node1 and node2 from windows cluster directly without uninstall sql server first, does this impact sqlinst on node3 and node4?
Question 2:
I setup a 2 nodes sql server cluster. On node1 and node2 i install a sql server 2012 cluster instance sql01.
Then i add 2 new nodes(node3 and node4),on node3 and node4 i install a sql server 2008 r2 cluster instance sql02.
And i upgrade sql02 on node3 and node4 to sql server 2012. After this i install sql02 on node2 and install sql01 on node4 to make node2 and node4 public passive nodes for sql01 and sql02.
Is this installation order right? I am worried about mixed sql versions cluster installation
Many thanks.