Defining LU Pools

For 3270, TN3270, RJE,and LUA, you can define LU pools to simplify user configuration and provide greater flexibility in establishing host sessions. For example, you can define several 3270 LUs in a single LU pool, then configure multiple 3270 sessions using this LU pool. This makes configuring the 3270 sessions easier and enables any 3270 session to use any LU in the pool.

LU pools can even span multiple SNAplus2 servers—just define LU pools with identical names on the different servers. If a server fails or is taken out of service, clients that use the LU pool can then use a different server. Using LU pools also simplifies client configuration and makes it easy to increase capacity by adding another server or by adding LUs on an existing server.

You can view all of the LU pools for the SNAplus2 domain using the LU Pools window. This window lists the LU pools configured in the system, and enables you to select LUs to add to an LU pool. The individual LUs in an LU pool are listed below the LU pool.

An LU is identified as follows:

Do not mix LUs of different types in the same pool (for example, do not put display and printer LUs into the same pool). It is unlikely that you will need a pool of printer LUs unless you are supporting TN3270E clients.

To configure an LU pool, use one of the following methods:

LU Pool Configuration Parameters

The following parameters are required for LU pool configuration:

Name

A name to identify the LU pool. This field applies only when you are adding a new LU pool. You cannot change the name of an existing pool.

Assigned LUs

LUs to be assigned to the pool. An LU can only be a member of one pool. RJE LUs cannot be used as members of a pool. Each RJE LU is associated with a particular RJE workstation, so different LUs of the same type are not identical in function.

Additional Configuration

After performing the LU pool configuration, continue with the following configuration tasks:

• For 3270, define emulator users as described in “Configuring 3270 Emulator Users”.

• For RJE, define the RJE workstation as described in “Configuring RJE Workstations”.

• For TN3270, define TN3270 client access records as described in “Configuring TN Server”.