This article will provide tips on the easiest ways to upgrade your OpenAdmin Tool installation.
But first, we must start with describing the two different ways to install OAT:
- Automated Installer
The automated OAT installer is provides an automated way to install and configure OAT and all of its prerequisites. The following products are included as part of the automated installer:
- OpenAdmin Tool for IDS (and the ER plug-in)
- IBM Informix I-Connect 3.50
- Apache 2.2.4
- PHP 5.2.4
- PDO_INFORMIX 1.2.6
What platforms? The automated installer is only available on the following platforms: Windows, Linux, MacOS.
When to use it? The automated installer is really intended for first time installations. It's purpose is to drastically simplify the initial step of installing and configuring OAT's prerequisites. The automated installer is also limited to those who do not require custom web server configurations. And those installing on Windows, Linux, or MacOS platforms.
The manual installation is when you install and configure your own Apache, PHP, PDO_INFORMIX, and Informix CSDK or I-Connect prior to installing OAT. Under this installation method, OAT comes as a zip or tar file that you can just extract into the webserver's document root directory after all prerequisites have been installed and configured.
What platforms? Any platform for which you can get OAT's prerequisite's installed. Although, for some platforms this can be very tricky.
When to use it? You are installing on a platform other than Windows, Linux, or MacOS. Or you have special web server configuration needs that are not supported by the Apache web server shipped with the automated installer. Or you already have a web server/PHP setup, which is exactly your situation if you are upgrading OAT!
So now that we are clear on the initial installation choices, we can finally get to talking about upgrading OAT.
The Automated Installer only supports full installations. It does not support installing individual components (e.g. OAT only), or upgrading components of the installation. Therefore using the automated installer for upgrading OAT only makes sense if you want a completely new installation of the webserver, PHP, and OAT. (Note: on Windows, this will require completely removing your old installation first.)
Therefore, the recommended method for upgrading OAT is to use the manual install package. This makes sense because you already have the webserver, PHP, PDO_INFORMIX, and I-Connect installed and configured. When upgrading, all you need is the new version of the OAT product -- which is just a set of php files. To upgrade, download the OAT zip or tar file and extract it into your web servers document root directory and then visit the OAT install URL (http://<servername>/<oat_directory>/install) to upgrade.
Now when you choose the manual upgrade of just extracting the new version of OAT into your webserver's document root directory, you have two choices:
- Extract over the existing installation of OAT
- Extract into a new directory in your webserver's document root (Recommended)
This method is fast and easy. You just extract the newest OAT tar or zip file over the existing OAT directory, visit the OAT install URL (http://<servername>/<oat_directory>/install) to upgrade your OAT connections database, and you're on your way. The disadvantage is that you lose your previous OAT installtion, including any custom changes you may have made to the files shipped as part of the OAT product.
This allows you to preserve your OAT existing installation should you ever want to go back to it. But what about preserving the connection information from your previous OAT installation? Again there are two options:
- You can make a copy of your previous connections.db (see the OAT Admin Config page for its location) and point your new installation of OAT to the copy. Then when you visit the the OAT install URL (http://<servername>/<oat_directory>/install) of the new installation, it will automatically upgrade the connections.db to the latest version and preserve all of your connection information. But since the OAT connections.db stores OAT plug-in information in addition to IDS server connection information, when you use this method, you will either have to install the same plug-ins into the new version of OAT or copy the OAT plugin directory from your previous installation into the new version of OAT.
- The other option for preserving IDS server connection information when upgrading OAT is to use the new OAT 2.24 import/export connections feature. This allows you to export OAT's IDS connection information into an XML file and then import it into another installation of OAT. Of course, here too, if you want the same plugins as your previous installation of OAT, you'll still need to use the Plug-in Manager to install the plug-ins in the new OAT installation.
For additional information on OpenAdmin Tool for IDS, including feature details, screenshots, demos, and the download link, go to www.openadmintool.org. Any questions about OAT or its installation/upgrade can be posted on the IIUG OAT forum.
Erika Von Bargen