Installing CA ERwin Data Modeler › Using a Concurrent License

Using a Concurrent License

This section describes how CA ERwin DM users can use a concurrent license with CA ERwin DM Standard Edition or Workgroup Edition.

Note: Before you start this procedure, your System Administrator must set up the License Server and import the license to it. You have the License Server details and know which edition to use.

In the concurrent licensing model, licenses are stored in a License Server. You check out a license to use CA ERwin DM; when you close the application, the license is checked in. The License Server increases or decreases the count of available licenses by one when you check in or check out a license.

Note: If all the licenses are checked out, you cannot open another instance of CA ERwin DM.

When using CA ERwin DM, if you lose connection to the License Server, the License Server recovers the license and CA ERwin DM closes. The recovery happens after four hours of disconnection and several warning messages.

The following diagram illustrates how to use CA ERwin DM with the concurrent licensing model: 

Perform the following tasks to use concurrent licenses:

1. Review the System Requirements.
2. Install CA ERwin DM.
3. Open CA ERwin DM and Provide the License Server Details.
4. Select a License for the Current Session.
5. Borrow a License.

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Review the System Requirements

Review the system requirements for the computer on which you want to install CA ERwin DM.

• Verify that you have installed one of the following operating systems:
  • Microsoft Windows Vista
  • Microsoft Windows 2008 Server
  • Microsoft Windows 2003 Server
  • Microsoft Windows XP (through SP3)
  • Microsoft Windows 7

    Note: CA ERwin DM support for Microsoft Windows 7 is certified on a 32-bit computer. CA ERwin DM is a 32-bit application. You may experience problems running CA ERwin DM on a 64-bit computer unless you have the 32-bit drivers installed.

• Verify that the computer meets or exceeds the following requirements:
  • Microsoft-based workstation, Intel^® Pentium^® 4 or equivalent
  • 2 GB of available hard drive space
  • 2 GB of RAM minimum; more is recommended for large models
  • DVD-readable device (only if installing from DVD media)

  Note: The minimum screen resolution supported is 1024 x 768. If your screen resolution is less than the minimum supported, some portions of the screen are not visible.

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Install CA ERwin DM

Install CA ERwin DM to create, update, and maintain conceptual, logical, physical, and dimensional models. For the Workgroup Edition, install CA ERwin DM on each computer that accesses Mart. Install CA ERwin DM Version 9 using the same executable file for Standard and Workgroup Editions.

Follow these steps:

1. Do one of the following tasks:
   • Insert the installation DVD
   • Download the ERwin.exe file from the online CA Technologies product page and run it.

   The Installation Wizard opens.

2. Follow the instructions on the wizard pages.

   The program files are copied and CA ERwin DM is installed.

Note: You can install CA ERwin DM Navigator from the ERwin.exe file or from a separate Navigator.exe file.

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Select a License for the Current Session

If you are using a concurrent license, when you close CA ERwin DM or disconnect from your network, your license is checked in to the License Server. When you launch CA ERwin DM again, select the license you want to use for that session.

Follow these steps:

1. Click Start, CA, ERwin, ERwin Data Modeler.

   The CA ERwin DM Licensing dialog appears.

2. Select one of the following options and click OK:

   Acquire concurrent Workgroup Edition license

   Connects to the License Server and acquires a concurrent license for the Workgroup Edition. Suppose the Workgroup Edition license is not available. If you have purchased the Standard Edition license, then select If unavailable, attempt to acquire a concurrent Standard Edition license. A concurrent Standard Edition license is checked out, if available.

   Acquire concurrent Standard Edition license

   Connects to the License Server and acquires a concurrent license for the Standard Edition.

   Acquire concurrent use SQL Azure license

   Connects to the License Server and acquires a concurrent use license for SQL Azure.

   Note: To use a concurrent license for SQL Azure, select one of the concurrent license options mentioned previously, and then select this option.

3. Enter the path for your License Server in the Server Path field in the port@hostname or port@IP address format. Click OK.

   Example: 27000@remotecomp1, 27000@255.255.255.255

   CA ERwin DM opens.

   Note: If no license is available, CA ERwin DM Community Edition opens.

You have selected a concurrent license to use CA ERwin DM.

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