Lotus Sametime 8.5 Cluster
IBM® Lotus® Sametime® 8.5 and 8.5.1 consists of client and server applications that enable a community of users to collaborate through instant messaging and on-line meetings over an intranet or the Internet. Members of the Lotus Sametime community use collaborative activities such as awareness, chat, screen sharing, and real-time audio/video capabilities to work together. For further information, please see the
Lotus Sametime 8.5.x information center. 
Overview
This scenario shows a Lotus Sametime 8.5 Cluster environment. The cluster consists of seventeen machines with the Lotus Sametime System Console as the cluster's Deployment Manager, which provides a single Integrated Solutions Console for all WebSphere administrative functions for all servers participating in the cell – this simplifies the administrative experience. The Horizontal cluster includes a Primary node plus one or more Secondary nodes, all running the same application. Each node contains one cluster member. Secondary nodes are used to horizontally scale the cluster across multiple physical systems. These additional nodes act as containers for additional cluster members, which can be used to balance loads and provide fail over within the cluster. Clustering is not available for the Packet Switcher; it is also not available for an "All Components" installation of the Media Manager, which includes the Packet Switcher, The Conference Manager components and the SIP Proxy and Registrar components must be installed and clustered on dedicated computers. The cluster also contains of a dedicated DB2 server and a dedicated LDAP Server on the remaining two machines.
The software stack includes:
1.- Lotus Sametime Community Server 8.5
2.- Lotus Domino Server 8.5
3.- Lotus Sametime Meeting Server 8.5
4.- Lotus Sametime Media Manager Server 8.5
5.- Lotus Sametime Gateway Server 8.5
6.- Lotus Sametime Proxy Server 8.5
7.- Lotus Sametime System Console 8.5
8.- DB2 UDB Edition v9.5
9.- WebSphere Application Server 7.0.0.3
10.-WebSphere Application Server 7.0.0.3 Network Deployment
11.- IBM Tivoli Directory Server 6.1
12.- Network Dispatcher: IBM Edge Components of IBM WebSphere Application Server 7.0
13.- Load Balancer: IBM Edge Components of IBM WebSphere Application Server 7.0
See
Hardware and software requirements for a complete list of requirements. This configuration is suggested for customers who wish to perform an enterprise deployment of the Lotus Sametime 8.5 where high-availability, fail over and scalability are factors in the deployment. This configuration is suggested for medium to large customer populations.
Environment Diagram
Infrastructure
| Description | Type | Model | Operating System | CPU's | CPU Speed | CPU Type | Memory | Comments |
| LDAP Server1 | X series | x3550- 7978AC1 | Windows 2003 sp2 | 4 | 3.00 ghz | Intel Xeon | 4 GB | IBM Tivoli Directory Server 6.1 |
| ST Meeting Server1 | X series | X3550-7978AC1 | Red Hat Enterprise Linux 5 | 4 | 3.00 ghz | Intel Xeon | 4 GB | Primary Node. 1 cluster member |
| ST Meeting Server2 | X series | X3550-7978AC1 | Red Hat Enterprise Linux 5 | 4 | 3.00 ghz | Intel Xeon | 4GB | Secondary Node. 1 cluster member |
| WebSphere Proxy Server1 | X series | X3550-7978AC1 | Red Hat Enterprise Linux 5 | 4 | 3.00 ghz | Intel Xeon | 4GB | WebSphere proxy server |
| Db2 Database Server1 | X series | x3550- 7978AC1 | Red Hat Enterprise Linux 5 | 4 | 3.00 ghz | Intel Xeon | 4 GB | DB2 UDB Edition v9.5 |
| ST Community Server1 | BladeCenter | HS21- 8853AC1 | Red Hat Enterprise Linux 5 | 4 | 2.33 ghz | Intel Xeon | 8 GB | Primary Node. 1 cluster member |
| ST Community Server2 | BladeCenter | HS21- 8853AC1 | Red Hat Enterprise Linux 5 | 4 | 2.33 ghz | Intel Xeon | 8 GB | Secondary Node. 1 cluster member |
| ST Gateway Server1 | X series | 336-8837Z11 | Red Hat Enterprise Linux 5 | 4 | 3.60 ghz | Intel Xeon | 4 GB | Primary Node. 1 cluster member |
| ST Gateway Server2 | X series | 336-8837Z0Q | Red Hat Enterprise Linux 5 | 4 | 3.40 ghz | Intel Xeon | 2 GB | Secondary Node. 1 cluster member |
| ST System Console Server1 | IBM Intellistation | 6221KQU | Red Hat Enterprise Linux 5 | 2 | 2.40 ghz | Intel Xeon | 2 GB | Cluster's Deployment Manager |
| ST Proxy Server1 | BladeCenter | HS21- 8853AC1 | Red Hat Enterprise Linux 5 | 4 | 2.33 ghz | Intel Xeon | 8 GB | Primary Node. 1 cluster member |
| ST Proxy Server2 | BladeCenter | HS21- 8853AC1 | Red Hat Enterprise Linux 5 | 4 | 2.33 ghz | Intel Xeon | 8 GB | Secondary Node. 1 cluster member |
| SIP Proxy/Registrar1 | BladeCenter | HS21- 8853AC1 | Red Hat Enterprise Linux 5 | 4 | 2.33 ghz | Intel Xeon | 8 GB | ST Media Manager 8.5 |
| ST Conference Manager1 | BladeCenter | HS21- 8853AC1 | Red Hat Enterprise Linux 5 | 4 | 2.33 ghz | Intel Xeon | 4 GB | ST Media Manager 8.5 |
| ST Conference Manager2 | BladeCenter | HS21- 8853AC1 | Red Hat Enterprise Linux 5 | 4 | 2.33 ghz | Intel Xeon | 4 GB | ST Media Manager 8.5 |
| Packet Switcher1 | BladeCenter | HS21- 8853AC1 | Red Hat Enterprise Linux 5 | 4 | 2.33 ghz | Intel Xeon | 4 GB | ST Media Manager 8.5 |
| Packet Switcher2 | BladeCenter | HS21- 8853AC1 | Red Hat Enterprise Linux 5 | 4 | 2.33 ghz | Intel Xeon | 4 GB | ST Media Manager 8.5 |
| Load Balancer 1 | Pentium D | 8212KUA | Windows 2003 sp2 | 2 | 2.80 ghz | Pentium | 2 GB | IBM Edge Component of IBM WebSphere Application Server 7.0 |
| Network Dispatcher 1 | Pentium D | 8212KUA | Windows 2003 sp2 | 4 | 2.80 ghz | Pentium | 2 GB | IBM Edge Component of IBM WebSphere Application Server 7.0 |
Deployment Instructions
The Lotus Sametime 8.5 Information Center contains detailed, step-by-step instructions for installing and deploying a clustered Sametime 8.5. Consult the following links. For best results, follow all instructions completely and in the order in which they are presented in the information center.
1.
Planning a deployment
2.
Planing deployment topologies
3.
Detailed system requirements
4.
Installing DB2
5.
Installing the Lotus Sametime System Console
6.
Connecting to an LDAP server
7.
Installing a Lotus Sametime Community Server and supporting software
8.
Clustering Lotus Sametime Community Servers
9.
Installing a Lotus Sametime Proxy Server
10.
Clustering Lotus Sametime Proxy Servers
11.
Installing IBM Load Balancer
12.
Installing a Lotus Sametime Media Manager
13.
Clustering Lotus Sametime Media Manager components
14.
Installing a Lotus Sametime Meeting Server
15.
Clustering Lotus Sametime Meetings Servers
16.
Configuring a WebSphere proxy server
17.
Installing IBM Load Balancer
18.
Installing a Lotus Sametime Gateway Server
19.
Setting up SSL on a cluster
20.
Connecting servers to Sametime Gateway
21.
Opening ports in the firewall
22.
Installing the WebSphere Application Server Update Installer
23.
Deploying the Sametime client to users
24.
Starting and stopping servers in a Lotus Sametime deployment
25.
Tuning Sametime Community Server
26.
Tuning Lotus Sametime Media Manager
27.
Tuning Sametime Gateway
28.
Tuning a WebSphere Proxy Server
29.
Troubleshooting