Private clouds - Subnet and IP calculation

[former_member201054]

Hi Experts,

How should we calculate and set up the Private subnets, IP address, HA/DR for this below SAP-HANA distributed environment?

Sandbox - 4 systems

Dev - 3 systems

Qty -3 systems

Prd - 3

Prd Solution manager -1

SAP router -1

Non-Prd system belongs to VPC1

Prd system belongs to VP2

SAP router - Public subnet

* Is it needed to assign a separate subnet for ASCS and PAS ?

* What can be the necessary gateways for this set up required.

* How to determine the number of IP addresses subnet wise.

Please let me know the possible calculations performed.

Thanks in advance