amritkp789
Jun 08, 2020Nimbostratus
How to mark a Virtual-Server down if at-least 4 members out of 5 are not up?
My Setup :
4 LTM boxes at 4 DCs.
4 VS for an application.
Each VS under each LTM of the respective DC has it's own set of 5 Equal-Capacity-Servers
- A DC has servers A1,A2,A3,A4 and A5 inside A_Pool associated to A_VS in LTM A.
- B DC has servers B1, B2, B3, B4 and B5 inside B_Pool associated to B_VS in LTM B.
- C DC has servers C1, C2, C3, C4 and C5 inside C_Pool associated to C_VS in LTM C.
- D DC has servers D1, D2, D3, D4 and D5 inside D_Pool associated to D_VS in LTM D.
All 4 VSs are part of the GTM Pool associated to wideip App_WIP used for "application.domain.com" FQDN.
The GTM Pool has GA Load-Balancing Mode with the following order : A_VS (Ord 0), B_VS (Ord 1), C_VS (Ord 2) and D_VS (Ord 3)
Requirement:
If out of 5 Servers in A DC if 2 goes down, A_VS should be marked down, so that GTM do not picks it for next DNS Query, untill a minimum of 4 Servers are UP in the A_Pool. Similarly for 3 VSes too.
How Do I achieve this?