Co-existing with earlier versions of SySAM

Database Expert version 15.0 and later uses the SySAM licensing technology and an updated license format. On any machine, you can have only one instance of a license server running. You must make some adjustments to use earlier versions of SySAM with Database Expert version 15.0 and later.

Case 1

If you are using a central network server for Database Expert version 15.0 and later, and a network license server-based SySAM license for earlier versions of the product, migrate to Database Expert version 15.0 or later:

Update the network license software with the version provided in Database Expert version 15.0 and later. Use the instructions in “Setting up a network license server”.
Copy the earlier license files (typically a single file named license.dat) into the new %SYBASE%\SYSAM-2_0\licenses directory and rename license.dat to license.lic.
Shut down the old license server and start the new license server.
Copy any new licenses into this new directory.

Old and new Sybase software now use this license server.

Case 2

If you are using individual license servers for earlier versions of Database Expert, with each machine running earlier Sybase software hosting a local license server, Sybase recommends that you move to a single network license server model to migrate to Database Expert version 15.0 and later.

Using a central license server only for new licenses

Select the machine for the new network license server and install the SySAM network license server supplied with Database Expert on that machine.
If this machine is already running an older license server, use the instructions in Case 1 to migrate the local licenses. All new licenses are now installed on this machine.
Point the Database Expert installation to this license server. Use the lmpath utility (see “Using SySAM utilities”) to do this or edit license.lic (after renaming license.dat to license.lic) and add these lines at the beginning of the file:
```
SERVER <network license server hostname> ANY <license server port>
VENDOR SYBASE
USE_SERVER
```

Migrating old licenses to a new central license server

Set up the new SySAM network license server using the instructions in “Setting up a network license server”.
Collect licenses from all old local license servers to deploy to the new network license server.
1. Create a new license file that includes the contents of all individual licenses from each earlier local license server.
  
  When you create the new license file, discard the license header from each file. The header is the first three lines that start with “SERVER,” “VENDOR,” and “USE_SERVER.”
2. Create one license header with the above three lines in the merged file to match the requirements on the new network license server and save this file as license.lic in the %SYBASE%\SYSAM-2_0\licenses directory.
Shut down the earlier individual license servers on each machine and point the software to the new license server. Use the lmpath utility (see “Using SySAM utilities”) to do this or edit the license.lic (after renaming license.dat to license.lic) file on each installation by adding these lines at the beginning of the file:
```
SERVER <network license server hostname> ANY <license server port>
VENDOR SYBASE
USE_SERVER
```

Case 3

If you are not using the network license server for Database Expert, no changes are required to the previous software. When fulfilling Database Expert version 15.0 and later licenses, select the unserved license model and copy the license locally on each installation. The software runs appropriately, however, you lose the asset management functionality in this approach. See “Choosing the appropriate license server configuration” for the pros and cons of using a network license server versus using a local license file.