Forum Discussion
How to shutdown all server exchange in site DC that not effect DAG
Hi
all active directory has global catalog enable .but current five role FSMO in DC , when shutdown i think i will change all FSMO to DR site
DAG configure
DatacenterActivationMode : DagOnly
AllowCrossSiteRpcClientAccess : False
WitnessServer : cas01.test.com
WitnessDirectory : E:\DagWitnessDirectory
Best Regards,
Thanks
Hi Tien Ngo Thanh,
About DAC, please read this https://docs.microsoft.com/en-us/exchange/high-availability/database-availability-groups/dac-mode?view=exchserver-2019
AllowCrossSiteRpcClientAccess, must be enabled.
About Witness you must have one per datacenter.
Best Regards,
NunoAriasSilva : with current exchange DAG both site the same subnet and the same site in Active Directory then should enable AllowCrossSiteRpcClientAccess ?
about Witness so i must install one more cas in DR and set alterwitness to CAS in DR ?
actual all server exchange the same site only difference about physical location because the same subnet .
Hi Tien Ngo Thanh,
As my first post, the best practice is to have separate AD sites and IP Addresses and have Global Catalogs on each site and have one mote Witness on DR.
Best regards
NunoAriasSilva : but current my exchange in tow data center use the same subnet , and another server (not exchnage also use the same subnet as sharepoint...) should we can not separate AD sites , and backbone between two high bandwidth . please recommend help me ?
My DAG in DAC Mode enable and DAG the same subnet , the same site , only difference location