AVAYA DOCUMENTATION CENTER
Find answers to your technical questions and learn how to use our products
Deploying Avaya Aura® Communication Manager in Virtualized Environment
Communication Manager software duplication with VMware high availability
This Appendix shows an illustration of Communication Manager software duplication with four ESXi Hosts configured in two data clusters with VMware high availability (HA).
In the Figure : 1, Communication Manager software duplication is established across two VMware Data Clusters. Each cluster is using the VMware HA. Communication Manager active and standby virtual machines are not supported within the same data cluster with VMware HA.
To establish the connectivity the Software Duplication link must be tied together through a dedicated Ethernet IP private Switch or VLAN, Host to Host (Figure). Hosts 1 and 3 are on Data Cluster A and Hosts 2 and 4 are on Data Cluster B.
The illustration has two Communication Manager virtual machines, CMVM_01 and CMVM_02 configured as an Active (ACT) and Standby (STB) pair using Communication Manager virtual machine software duplication link.
CMVM_01 (ACT) Eth2 configuration virtual switch is tied to physical adapter VMnic2 on Host 1 and CMVM_02 (STB) Eth2 configuration virtual switch is tied to physical adapter VMnic2 on Host 4.
Other virtual machines are not using the VMnic2.
Example: When Active virtual machine fails
In the Figure : 1:
Host 1 (CMVM_01 ) is ACT with a duplication link communicating over VMnic2 through the network switch.
Host 4 (CMVM_02) is STB with a duplication link communicating over VMnic2 through the network switch.
If Host 1 fails, CMVM_02 becomes ACT.
VMware HA starts CMVM_01 on Host 3.
Host 3 (CMVM_01 ) starts communication over VMnic2.
Host 1 is booting so no communication over VMnic2.
Host 3 (CMVM_01) and Host 4 (CMVM_02) link up and communicate across the network switch over each VMnic2.
