Create ClusterXL from Single Firewall - Step

[MtxMan]

Hi Checkmates,

i have an use case in my customer environment, so currently they use 5200 single for Perimeter and External firewall + smart-1 410.

and in this month, they will buy a new 2 firewall using 6200 for perimeter. so 5200 would use as clusterXL for external firewall.

does anyone has idea in the easiest way how to create clusterxl on 5200 when running single firewall at beginning? do i need to scratch/fresh install to do that? thanks!