Considerations for configuring High Availability on the Ozone Manager

There are various factors that you must consider when configuring High Availability (HA) for the Ozone Manager (OM).

OM HA is automatically enabled when you set up Ozone on a CDP cluster with at least three nodes as OM hosts.
You must define the OM on at least three nodes so that one OM node is the leader and the remaining nodes are the followers. The OM nodes automatically elect a leader.
The following command lists the OM leader node and the follower nodes:
```
ozone admin om getserviceroles -id=<ozone service id>
```