Exchange 2016 network health assessment

I  have an engagement where I will have to assess the health of an Exchange 2016 environment, This environment has a DAG split across to different physical sites and load balanced .CAS. What tools are available for me to the assessment and what are the recommended sequence of events. Also what is the best way to test the DAG failover in this environment?
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Jian An LimSolutions ArchitectCommented:
First, run health report

for DAG failure, you really need to test the Disaster recovery plan to test it out.
like shutdown the whole site. to confirm it is working or not.

If the business are not prepare to do so, you only can do paper-based writing

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Jian An LimSolutions ArchitectCommented:
real business scenario with possible output
Barry-f4Author Commented:
It worked thanks
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