Merging Two Stacks

You can join or merge two stacks to create one larger stack. However, the maximum number of nodes in an active topology is eight.

The operation performed when two stack segments are joined together depends on the following factors:
If the nodes are configured with stacking enabled, one of the following occurs:

The nodes that are not configured for stacking do not attempt to join the active topology but join the stack anyway.

Any nodes enabled for stacking that are isolated between nodes (that are not enabled for stacking) attempt to form an isolated active topology.

If one of the nodes that is not configured for stacking is then configured for stacking and restarted, the behavior is as if two active stacks were joined.