Hi,
please can you describe the evironment you run the AWA a bit more detailed.
HA:
The automation engine providedes Application HA if you have the license to run more than one AE instance for your AWA System. Do you run one Automation Engine Instance or more than one.
Which DB are you using and is it providing the same level of HA as your AE is providing?
VM oder other Virtualization can provide HA for your Application and DB.
Is the enviroment Monitored active to prevent any kind of outage?
DR: This is a complete different topic than HA. My experiance is to understand first the DR Scenario of the environment where you have to schedule and monitor activities. Based on this you can than work on a DR configuration and scenario.
Best,
Franz