Starting & Stopping Apigee (Private Cloud)

Hi,

I understand that according to -

https://docs.apigee.com/private-cloud/v4.18.01/starting-stopping-and-restarting-apigee-edge

There's a proper way to start and stop apigee. However, I will like to know what might be the potential implication if we do not follow the steps?

E.g, if one of the Cassandra nodes went down, can I just boot up that particular node? Or do I have to do a proper restart of the whole Apigee?

I assume this is also one of the reasons why auto-start was not enabled by default. So I am considering if I should keep it off, or enable all of them if we can restart individual nodes.

Thanks!