This deployment topology is suitable for environments that require site-level redundancy and there is no neutral location for a Witness node.
Solution Prerequisites
-
Replicated Read/Write Block Volume attachment on both site-A and Site-B recommended via vSphere vSAN or Enterprise Storage Solution with near real time replication
-
Redundant network connectivity across both sites.
-
Network latency below 40 ms.
Hardware Requirement
|
Site Name |
Node |
CPU Cores |
RAM (GB) |
Storage (TB) |
Operating System |
|
Site A |
Core Platform |
16 |
32 |
300 |
Ubuntu-24.04-LTS |
|
Site A |
Reporting |
8 |
16 |
100 |
Ubuntu-24.04-LTS |
|
Site A |
Voice Platform |
16 |
32 |
250 |
Debian-12 |
|
Site B |
Core Platform |
16 |
32 |
300 |
Ubuntu-24.04-LTS |
|
Site B |
Reporting |
8 |
16 |
100 |
Ubuntu-24.04-LTS |
|
Site B |
Voice Platform |
16 |
32 |
250 |
Debian-12 |
Failover Scenarios
|
Scenario |
Components Failed |
Components Active |
Business Impact |
|---|---|---|---|
|
Normal Operation |
None |
Site-A |
Solution is available |
|
Site Failure |
Active Site |
Standby site is active. |
Brief service interruption during failover, then service resumes on Standby Site |