IBM GC23-7753-05 manual Upgrade of IDS by Overwriting an Existing Installation

3.Click Convert to Cluster. After the ClusterIT utility completes, IDS starts on the secondary node.

After implementing a cluster environment on multiple nodes, you can find a

record of the ClusterIT utility activities in the clusterIT.log files, one for

clusterIT_a in the primary node directory, and one for clusterIT_b in the

secondary node directory where the ClusterIT executables were installed.

Upgrade of IDS by Overwriting an Existing Installation

Use the installation application to overwrite an existing IBM Informix Dynamic

Server installation only when you are upgrading from a previous fix pack of the

same version number or for specialized technical environments.

When you place the IBM Informix Dynamic Server installation media on a

Windows computer that hosts an earlier version of the server, you will be

prompted as to whether you want to install in a different directory or upgrade by

installing in the same directory where the older version of the product already

exists.

For upgrading or migrating a production database server, choose to install in a

different directory as documented in the IBM Informix Migration Guide unless you

have specific goals or system constraints that require you to overwrite the older

installation completely. The following are some examples of when you might

upgrade by installing directly to the directory where an earlier version or fix pack

level are located:

v Upgrade an existing IDS installation that has the same version number as the

new product, but is an earlier fix pack. For example, if the host computer has

IDS 11.50.xC1 and you want to install IDS 11.50.xC4, then complete the upgrade

by installing in the same location.

v Capture the installation settings in a response file so that you can upgrade other

older IDS instances with silent installation.

v You have a computer hosting an older version of IDS that does not have

sufficient free space to hold two installations of the product.

v You plan to use a symbolic link to migrate the data to the new version.

Overwriting an Existing IDS Installation

Ensure that you complete the prerequisites before you do an upgrade that installs

the product in a directory that already has an earlier version.

Important: Ensure that you have the installation media for the IBM Informix

Dynamic Server version that you are replacing, back up your databases, and

complete other preparation steps before you upgrade using the following method.

See the IBM Informix Migration Guide for details about supported upgrade paths

and data migration.

When you install using the procedure below, the old version or fix pack of the

product is uninstalled.

1. Open the IBM Informix Dynamic Server installation application of the version

or fix pack level that you want to install.

2. Select the option to install a new instance when the installation application lists

existing IDS instances and click Next.

3. Select the option to upgrade by replacing the product and click Next. Complete

the prompts in the server installation application for a typical or custom setup.

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