We have a 2-node Windows 2012 R2 cluster consisting of nodes SERVER1A and SERVER1B, which share a cluster core resource named SERVER1 which is currently owned by SERVER1A. There is also a role named "SQL Server (HA01)" under which are five resources: a DataKeeper disk volume, a file server share (\\sqlha01), an IP address, a SQL server service, and a SQL server agent. The role and resources are all currently running on SERVER1B.
Why would the role and resources be running on SERVER1B when the cluster core resource is on SERVER1A? Forgive me, but I am accustomed to Linux corosync+pacemaker clustering, where everything follows the same primary server.