Setup a ndb cluster in an existing environment (no replies)

Hi all,

As said in the subject, I need to setup a ndb cluster while keeping the existing database. I found many tutorials to create a ndb cluster in a new environment so i think i have the basics but my goal is to migrate
from 2 servers with a simple replication,
to a 3 servers ndb-based cluster :
- 1 main Mgt server + main load balancer
- 1 SQL+Data Node + spare load balancer
- 1 SQL+Data node + spare mgt server

Of course, i need failover and loadbalancing features. So first of all, is this configuration correct or did i miss something ?
Then, i need to keep the datas and avoid service interruption. As i said, i read a few tutorials, but all of them are about setting up a cluster from scratch.
So i was wondering if someone already did that or if you could help me on the steps to follow.

Thanks,

Olivier