Почему кардиостимулятор запускается на вторичном узле вместо основного устройства?

The setting that is missing is the preferred node.

You can first add the resource, and configure the preferred node to run it afterwards.

It is recommended to assign a weight below the stickiness of the resource to avoid unwanted downtime in the case of failover.

Check the pacemaker docs for a complete example.