Open the Table of Contents
Setting up the Redundant License Manager Pool
Each License Manager runs on a separate
computer on the network. Follow the steps given below to create a redundant License Manager setup:
- First,
install (but don’t run) the License Managers on different computers on
the network.
- Next, set each
client to access the License Manager for by setting
the LSHOST environment variables or allow the client to broadcast for an available License Manager.
- If your vendor
has specified that the License Managers will be locked to specific computers,
you will need to run echoid
on each computer and record the locking code. You should also record the
host name of each computer and its IP address.
- You will now
install the licensed applications on the end user computers.
If any License Managers are running that will be used as redundant License Managers, you
must shut them down before creating the redundant license file.
- After you receive
the license codes from your vendor that will be serviced by the redundant
License Manager pool, use WRlfTool or rlftool (or WlmAdmin to call WRlfTool)
to create a redundant license file to:
- Add the License Managers
to the redundant License Manager pool by specifying the host name and IP
address for each computer containing a redundant License Manager. This
defines which License Managers are in the redundant License Manager pool. Remember to follow the Requirements and Recommendations for Setting Up Redundant License Managers.
- Set the preference number
of the License Managers. The first License Manager added to the pool and
started up first is also known as the
leader and all other License Managers will be known as the followers. The preference order specifies
the order in which the leader will be chosen if the current leader goes down.
- Use rlftool or
WRlfTool to add the redundant license codes received from the vendor into
the redundant license file (by default named as, lservrlf).
Tip:
By using the
lslic utility,
redundant licenses can be added dynamically. If the requested License Manager is
a follower, it will forward the request to the leader; the leader License Manager
will then check the validity of license. If the license can be added,
the leader will add that license and forward the license code to all the
followers.
- Since this is
the first time that the redundant License Manager pool has been set up,
you need to copy the redundant license file to each of the computers on
which the redundant License Managers resides. After this, changes to any
one of the redundant license files will automatically be transmitted to
each redundant License Manager when one of the License Managers is stopped
and restarted.
Do not create a “mixed” redundant License Manager pool—a one that consists of both isolated License Managers (of the same vendor) and generic License Managers. Instead, you can create a pool consisting of either isolated License Managers or generic License Managers.
- Bring up each
of the License Managers in the pool. Because the redundant license file
is in the same directory as each License Manager, each License Manager will
automatically start up as a redundant License Manager.