difference in dynamic ratio (node) algorithm and dynamic ratio (member)

Dynamic ratio load balancing method works by taking calculation of the servers performance using SNMP or WMI queries to the servers.

The load balancing method can be selected based on the member or node, if your doing configurations based on the member then you need to do the configurations on the pool settings or if your doing it on the node then you can do the settings on the node settings page on the configuration utility.

Note : - Before that necessary settings and monitoring agents should be installed on the servers for pulling performance data from the server