Shulou(Shulou.com)06/02 Report--

1. Deploy a network load balancing cluster

a. Available through the deployment of professional network load balancing hardware equipment

b. Use the Network load balancing (NLB) built-in in Windows Server 2008 R2

NLB clusters (network load balancing clusters) use DNS polling to balance the traffic between nodes to ensure the availability of client access servers. The NLB cluster virtualizes a cluster IP address and receives access requests from the client through the cluster IP. After receiving the request, the cluster IP is distributed to different node servers in the cluster to achieve load balancing.

two。 If you only configure NLB (even if you connect to NLB, you can only connect to one CAS server), the exchange CAS role cannot be fault tolerant. So create a CAS Array.

a. Create a CAS Array:

New-ClientAccessArray-Name mail.###.cn-Fqdn "mail.###.cn"-Site "Default-First-Site-Name"

b. Change the client access server and modify RPC Server (outlook client is RPC)

The client access server to which the default client connects is the first client access server, not the CAS cluster server, so you need to set the client access server to the CAS array. Execute the following command:

Set-MailboxDatabase DB1-RpcClientAccessServer cas.dearda.corp

$"Mailbox Database DB1" is the mailbox database. If multiple mailbox databases are deployed in the enterprise, you need to change the client access server for each mailbox database.

The $- RpcClientAccessServer parameter, which sets the name of the CAS array server.

After the command is executed, set the RPC server connected by the client access server to "cas.dearda.corp"

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