IBM GC23-7753-05 Planning for Multiple Residency, Creating a New Database Server Instance

While the database server engine is upgraded by this task, the preceding steps do

not change your databases.

To start the IDS instance, you must initialize the server manually.

Multiple Residency

You can set up multiple independent database server environments on the same computer

Complete the following tasks to set up multiple residency.

Planning for Multiple Residency

When you plan for multiple residency on a computer, consider the following factors:

vStorage space

Each database server must have its own unique storage space. You cannot use the same disk space for more than one instance of a database server. When you prepare an additional database server, you need to repeat some of the planning that you did to install the first database server. For example, you need to consider these questions:

–Will you use mirroring? Where will the mirrors reside?

–Where will the message log reside?

–Can you dedicate a tape drive to this database server for its logical logs?

–What kind of backups will you perform?

vMemory

Each database server has its own memory. Can your computer handle the memory usage that an additional database server requires?

Creating a New Database Server Instance

Before you set up multiple residency, you must install one database server as described in Chapter 2, “Installing IDS on Windows,” on page 2-1.It is not necessary to install more than one copy of the database server binary files. All instances of the same version of the database server on one computer can share the same executable files.

To set up multiple residency, use the Server Instance Manager. To use the Server Instance Manager program, you must have administrative privileges on the database server. However, local administrator privileges are sufficient, even if the database server was installed for domain use.

Before you use the Server Instance Manager, verify that you are a member of the

Informix-Admingroup. For more information, see “Verifying Administrators

Group Membership” on page 1-1.

The following steps are for using the Server Instance Manager GUI. See “Server Instance Manager Command-Line Options” on page 2-14for other ways you can use this utility.

To create a new database server instance:

1.Choose Start → Programs → IBM Informix Dynamic Server 11.50 → Server Instance Manager.

Chapter 2. Installing IDS (Windows) 2-13