CONFIGURING


Setting up a private LAN for a cluster

Setting up a private LAN for your cluster separates the server probes and cluster replication from the rest of your network traffic. This prevents the cluster traffic from slowing down your primary network.

Procedure

1. Install an additional network interface card in each server in the cluster. These cards should be connected through a private hub or switch.

2. Configure the LAN to use TCP/IP.

3. Assign a second IP address to each server. In a cluster using two servers, for example, you could use the addresses 192.168.64.1 and 192.168.64.2.

4. Assign host names for the new IP addresses, and place entries in the HOSTS file or the DNS. In a cluster using two servers, for example, you could assign the host names Renovations_clu.renovations.com and Renovations2_clu.renovations.com. The entries in the HOSTS file might then be:


5. Verify that the private LAN is operational by making sure that each cluster server can ping both the IP address and the host name of the other cluster servers. Also, be sure that other servers can still ping the cluster servers at their regular LAN addresses.

6. On each server in the cluster, add a new network port for the private LAN, and edit the Server document to enable the port.


7. Assign each port an IP address from the corresponding subnets, and place this information in the NOTES.INI file in the following form:
8. Do one of the following: Next, either , or Add the following line to the NOTES.INI file:
9. Restart the server.

Making sure Domino is using the private LAN

About this task

To verify that Domino® is using the private LAN, you can do the following:

Procedure

1. At the server console, type show cluster.

2. In the results, look for the line Server cluster default port: Cluster Port

3. If the cluster port is preventing mail from routing, or binding to SMTP, add this line to the Domino server's NOTES.INIfile:
Making sure that cluster replication is using the private LAN

About this task

It is also a good idea to check the cluster to be sure that cluster replication is using the private LAN. To do this, you can look at some of the cluster statistics.

Procedure

1. From the Domino Administrator, click the Server -> Statistics tab.

2. In the list of statistics, expand NET.

3. Expand the port name you gave to the cluster.

4. Look for the following statistics for the private LAN port:


5. Click Replica -> Cluster.

6. Expand SessionBytes, and look for the following replication statistics for the cluster:


7. Compare the NET.portname.BytesReceived value with the Replica.Cluster.SessionBytes.In value.
8. Compare the NET.portname.BytesSent value with the Replica.Cluster.SessionBytes.Out value.
Related concepts
Setting up a cluster

Related tasks
Adding a network port on a server
Reordering a network port on a server