Sun Java System Application Server Enterprise Edition 8.1 2005Q2 High Availability Administration Guide

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## Adding Machines

You may want to add machines if HADB requires more processing or storage capacity. To add a new machine on which to run HADB, install HADB packages with or without the Application Serveras described in Chapter 2, Installing and Setting Up High Availability Database. For an explanation of node topology alternatives, see Chapter 3, Selecting a Topology, in Sun Java System Application Server Enterprise Edition 8.1 2005Q2 Deployment Planning Guide.

### To add new machines to an existing HADB instance

1. Start management agents on the new nodes.

2. Extend the management domain to the new hosts.

   For details, see `hadbm extenddomain` command.

3. Start the new nodes on these hosts.

   For details, see Adding Nodes

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