Shulou(Shulou.com)06/03 Report--

Mailbox MBX Database High availability Group (DAG) is the basic component of high availability and site reply built into Exchange server

DAG is a group of mailbox servers that can contain up to 16 mailbox servers, which host a set of databases and can provide a single audio server.

Or the function of automatically performing database recovery in case of database failure. DAG is mailbox database replication, database and server switching, and failover.

Edit the internal exchange component named activity Manager at the first level. The activity Manager runs on each server in DAG and can be managed

Switchover, failover. DAG any server can host other servers to become replicas, adding the server to the DAG, where all the servers

Both can work together to provide automatic recovery from failures that affect mailbox databases, such as disk failures or server failures.

For more information about DAG, please refer to the following link:

Server inventory

DC01 (abcd.com)

192.168.131.133 main domain control, DNS server Exchange-01 (Cas client, Mbx server) 192.168.131.137 first exchange-01 for MbxExchange-02 (Cas client, Mbx server) 192.168.131.138 second exchange-02 for Mbx

DAG (no server) 192.168.131.151DNS domain name resolution

Now the DNS server adds an A record, which is mainly used for the DAG of the Mbx service configuration, whose name and ip are unique. First open the domain control DC01 to set dns

Enter the NLB address configured before IE and enter the exchange management interface (ECP)

Locate the server-database availability group and click add

An error will be reported in the previous step, which is not in the exchnge trusted subsystem. We need to add the following permissions

After the establishment is successful, we select DAG to manage the members

Switch to data, we are building a new

Now that this database is only hosted on exchange01, we need to add a specified mailbox server so that the database is the same on both servers.

Data file, which is really highly available to prevent a single point of failure, select the database we just created, and then click New Database copy

At this point, all DAG deployments are complete.

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