[Samba] What happend if I use option ? --domain-critical-only

[Denis Morejon]

What happend if I use " --domain-critical-only" in the domain join 
operation ?

For example:

samba-tool domain join dtcf.etecsa.cu DC -U "DTCF\administrator" 
--dns-backend=BIND9_DLZ -d 3 --domain-critical-only

I couldn't join normally a second DC because of an object replication 
error. So I tried with this option and it done!

But will both DC1 and DC2 work find ?