MATLAB: Backup licence server

backupdisaster recoverylicence serverMATLABserver

Is it possible to have another licence server activated to be used in a disaster recovery scenario ?

To give some background – we ran into some difficulties during a DR test when we deactivated our licence server, brought up a new server and added that MAC address, tested,then tried re-adding our original server. The amount of times you're able to change servers is limited, so we were unable to do so until we got an exception.

Having a redundant server that's a direct copy of the primary would solve this issue.

Best Answer

Nick, there is something called "Disaster Recovery license file". In order to find out how this works exactly and how to get it, please contact the installation and licensing department at MathWorks. You can start by either calling into the installation support queue or contact your sales person.

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MATLAB: What are the differences between the license.lic, license.dat, network.lic, and license_info.xml license files

There are four different types of license file:

license.lic

For Individual or Designated Computer licenses, this is a standard license file generated from the MathWorks License Center. If this license is automatically generated during installation, it will also contain the hostname, license number and release in the filename.
For Concurrent or Network Named User licenses, this is an unprocessed license file used to install the network license manager. It is also generated on the MathWorks License Center. On network licenses, the license.lic file is *only *used for the installation of the network license manager.

license_info.xml

The license_info.xml file is used for Individual licenses with Login Named User enabled.
This type of license file is common for trial licenses and licenses being used on cloud compute services.
The license_info.xml file contains no license data; rather it instructs MATLAB to connect to MathWorks on launch to authenticate the license.
If a license_info.xml file is in place, you will be prompted to enter your MathWorks Account credentials upon launching MATLAB.

license.dat

The license.dat is a processed license file that is created during the installation of the network license manager on the license server. When the network license manager is installed using the MATLAB installer, the license.dat is placed in the $MATLAB/etc folder (where $MATLAB is the installation directory).
The license.dat contains two additional lines at the top of the file, the SERVER line and the DAEMON line. These lines are generated by the installer and contain information specific to the machine the installer was run on.
The license.dat is used during the installation of MATLAB on network clients.
You can manually convert a license.lic to a license.dat by adding the SERVER and DAEMON lines and changing the file extension from .lic to .dat.
The syntax for the SERVER and DAEMON lines is as follows:

SERVER {hostname} {HostID} 27000
DAEMON MLM {$MATLAB}/etc/MLM

network.lic

The network.lic is created when a license.dat is provided during installation of a network client installation. Similarly, when a network client installation is activated using the MATLAB activation client, the network.lic is placed in the $MATLAB/licenses folder (where $MATLAB is the installation directory).
The network.lic contains two lines, a SERVER line and the USE_SERVER directive.
You can manually convert a license.dat to a network.lic by deleting everything but the first line and replacing it with the USE_SERVER directive.
The network.lic can be used instead of the license.dat for activation of a network client installation.
The network.lic is only used on network client computers.
The syntax for the file is as follows:

SERVER {hostname} {HostID} 27000
USE_SERVER

Please note that with the exception of the license_info.xml license file, these names are conventions, not rules. The exact names and functions of these files may vary depending on your local MATLAB configuration. Any questions related to your specific usage should be directed to your license administrator.

MATLAB: How to backup the Matlab Favorites

The Matlab Favorites can be backed up by copying the shortcuts.xml or shortcuts_2.xml from the right folder. The path to the folder, which containing the shortcuts.xml or shortcuts_2.xml, can be obtained by running “prefdir” command from Matlab command line.

Afterward, You can restore your Matlab Favorites on your newly installed Matlab. To do so, you need to copy the backed-up shortcuts.xml or shortcuts_2.xml into your Matlab newly installed folder. In order for Matlab Favorites to get updated, you need to restart your Malab.

The broken link error is unavoidable if you want to restore your Matlab Favorites into a newer version since the paths to the Doc files are different in different versions of Matlab.

you can work around the issue if you want to restore your Favorites to Matlab with compatible (Help) filing structures such as Matlab 2010a, 2010b, 2011a, 2011b, 2012a and 2012b. to work around the issue you need to update the paths in the shortcuts.xml or shortcuts_2.xml accordingly. For example, if you move your Favorites from Matalb 2010a to 2011b, you need to replace all "R2010a" to "R2011b" on the shortcuts.xml or shortcuts_2.xml.

Please note the filing structure for Matlab2013a (or newer versions) are not compatible with the older one; in the other word, the above procedures does not seem very straight forward for restoring your Matlab Favorites from 2012b and older into 2013 (or newer versions).

It would be great if Mathworks considers IMPORT button on Shortcuts Organizer for Matlab 2013a (and newer verstions) similar to browsers.

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MATLAB: What are the differences between the license.lic, license.dat, network.lic, and license_info.xml license files

MATLAB: How to backup the Matlab Favorites

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