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# Installing a Redundant License Code

There are several utilities you can use to install a redundant license (lslic, rlftool, and WRlfTool). However, we recommend using lslic to add a redundant license because you will not have to stop and restart the redundant License Managers for the change to take effect. For details on lslic, see lslic - Install/Delete a License Code.

If you need the licenses to be added to a remote License Manager, set the LSFORCEHOST environment variable on the computer on which you are using lslic to the computer containing the redundant License Manager to which you want to add the license code even if you are running lslic on the License Manager’s computer.

You may only use lslic to add redundant licenses after all the redundant License Managers have been started with a redundant license file, lservrlf. For more information on redundant License Managers and on using lslic to add redundant licenses, see Using lslic to Add Redundant Licenses.

For information on setting up a redundant License Manager pool, see Setting up the Redundant License Manager Pool.