I'm using Open migrator for comple SQL cluster migration to VNX and I'm ready to cutover but I've a question:
If I try put SQL services down and the cluster services go down too.
Cluster Services should not go down if you offline a SQL group.
You should be offlining all the indvidual resources in the SQL Cluster group, leaving only the disks online in the SQL Cluster Group.
Do not use Open Migrator to migrate the Cluster Group, use Cluster Administrator to change the Quorum designation.
This is documented in the Open Migrator manual.