Exchange 2016 - Multiple Data Centres Multiple APMs - Kerb SSO

Constrained Delegation Question. Should we share the one delegation account across two data centers or dedicate one per DC? (See example below) Each data center has one virtual server for the same exchange farm?

 

Exch2016_iApp DC1

 

What is the user name for the Active Directory delegation account you created?

 

host/sacc-exc-f5-dc1.contoso.local

 

Exch2016_iApp DC2

 

What is the user name for the Active Directory delegation account you created?

 

host/sacc-exc-f5-dc2.contoso.local