Question: how to configure llt and gab in vcs?
Answer: Create the file /etc/llthosts on the new node. ... 
Create the file /etc/llttab on the new node, making sure that line beginning "set-node" specifies the new node. ... 
Copy the following file from one of the nodes in the existing cluster to the new node: ... 
On the new system, run the command: # /etc/init.d/llt start.