WebJan 18, 2024 · Microsoft Exchange Database Availability Group or DAG requires a witness server and witness directory (automatically created by the Exchange on the Witness Server) for maintaining quorum. A witness server or file witness server (FSW) provides automatic failover protection. WebMay 31, 2011 · In a Windows Failover Cluster, only members of the cluster are quorum voters. When the cluster is one vote away from losing quorum and the Witness Server is needed to maintain quorum, one of the DAG members that can communicate with the Witness Server places a Server Message Block (SMB) lock on a file called witness.log …
Exchange <-> Witness Server Network Port Requirements
WebPorts required for firewall communication between Exchange Server machines ? Hi All, I wanted to know about the exact ports which are required for communication between Exchange Server machines. I have to allow these ports through the firewall. DAG Replication port :TCP 64327 TCP 135 and 445 TCP 3875 5 6 comments Best Add a … WebFeb 20, 2012 · Exchange Trusted Subsystem group in local Administrators So the solution is to add the Exchange Trusted Subsystem group to the local Administrators group on … rae richardson
Configure File Share Witness for an Exchange 2010 DAG
WebFeb 20, 2012 · Exchange Trusted Subsystem group in local Administrators So the solution is to add the Exchange Trusted Subsystem group to the local Administrators group on my HO-MGT server, and then run the Set-DatabaseAvailabilityGroup command again. WebFeb 18, 2013 · Starting in Exchange Server 2013 the only protocol supported for Windows Outlook clients is RPC over HTTPS. This architectural change reduces your required port count to one, TCP 443 … WebOct 4, 2024 · Witness server \\FSW01.contoso.com\DAG01.contoso.com' network name was not found. This may be due to a firewall setting.-----Failed to create file share witness directory C:\Witness on witness server 'FSW01.contoso.com' until this problem is corrected, the DAG may be more vulnerable to failure. No new directory is created on the FSW server. rae richardson obituary