HP-UX SNAplus2 R7 Administration Guide

Configuring Dependent LUs
Defining LU Pools
Pool name
The name of the LU pool.
6.1.2 Additional Configuration
After performing the LU type 0–3 configuration, continue with the following configuration tasks:
• To use a pool of dependent LUs for a 3270 display, for TN3270 or for LUA, define the LU pool as described
in Section 6.2,
Defining LU Pools.
• For 3270, define emulator users as described in Section 8.1.1, Configuring 3270 Emulator Users.
• For RJE, define the RJE workstation as described in Section 8.3, Configuring RJE Workstations.
• For TN3270, define TN3270 client access records as described in Section 9.1, Configuring TN Server.
6.2 Defining LU Pools
For 3270, TN3270 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.
Note
You can assign a user’s session either to a specific LU or to an LU pool.
• If you assign the user’s session to a specific LU that is in a pool, the session uses this
LU if it is available; otherwise it uses any free LU from the pool, as though you had
assigned it to the LU pool instead of the specific LU.
• If you want the user to use only a specified LU, so that the user’s session cannot be
established if the LU is already in use, ensure that the LU is not in a 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. Us-
ing 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:
• 3270 display LU
• Unrestricted LU
• SCS Printer
• 3270 Printer
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:
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