Supported versions and recommended number of instances for High Availability
Supported Consul versions
PDS supports the following Consul data service versions:
Data service  | Version  | 
Consul  | 
  | 
Recommended minimum number of instances for High Availability
| Minimum number of instances | Reason | 
|---|---|
| 3 | Consul uses the Raft consensus algorithm to elect a leader and manage cluster state. Three instances ensure that a majority can still form consensus if one instance becomes unavailable. |