Configuring Virtual Server in Active-Standby (or failover) mode

Thanks for guiding me through this. I found this article on F5 site: http://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/ltm-concepts-11-3-0/ltm_pools.html?sr=37506658 There is a paragraph at about 2/3 of the article as follow: *** Quote *** Priority group number The Priority Group feature assigns a priority number to the pool member. Within the pool, traffic is then load balanced according to the priority number assigned to the pool member. For example, pool members assigned to group 3, instead of pool members in group 2 or group 1, normally receive all traffic. Thus, members that are assigned a high priority receive all traffic until the load reaches a certain level or some number of members in the group become unavailable. If either of these events occurs, some of the traffic goes to members assigned to the next higher priority group. This setting is used in tandem with the pool feature known as Priority Group Activation. You use the Priority Group Activation feature to configure the minimum number of members that must be available before Local Traffic Manager begins directing traffic to members in a lower priority group. *** Unquote ***

Will this guarantee that all traffic goes to server A until it fails before going to server B?

Regards, Alain