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TITLE: 3270 LAN Workstation for DOS Configuration Guide
DOCUMENT ID#: TD.S.3-152
DATE: January 9, 1992
PRODUCT: 3270 LAN Workstation 2.0
NetWare for SAA 1.1
PRODUCT VERSION: See Above
SUPERSEDES: NA
SYMPTOM: NA
ISSUE/PROBLEM
This document describes the software changes that ensure version 2.0 of
the 3270 LAN Workstation for DOS software is compatible with version 1.1
of NetWare for SAA.
Read this document if you want to use version 1.1 of NetWare for SAA to
connect a 3270 LAN Workstation to a host. Reading this is unnecessary if
you are configuring a NetWare 3270 LAN Workstation for a host connection
through a NetWare SNA Gateway.
SOLUTION
The new workstation software consists of the following files. These
files are on the Update Files for the NetWare 3270 LAN Workstation for
DOS diskette.
> WSCONFIG.EXE, which is the configuration program for the NetWare 3270
LAN Workstation for DOS. (This document refers to this program as
WSCONFIG.)
> WSCONFIG.MSG and WSCONFIG.HLP, which are two of the miscellaneous
files that support WSCONFIG.
> WSLAN.CFG, which contains the configuration settings for WSLAN.EXE.
(WSLAN.EXE is the control program for the NetWare 3270 LAN Workstation
for DOS.)
> IMERC.EXE, which is a transport driver that supports communication
between WSLAN.EXE and NetWare for SAA.
What Has Changed?
You need to be aware of the following changes that affect the
workstation software:
> What you specify for a server name has been changed. The server name
and the NetWare file server name are now the same name. Formerly, these
names had to be different from one another.
> Logical units (LUs) are now specified with the LU Category Selection
option instead of the LU Group Name option. To implement this change,
the following software alterations have been made:
- A Host Printer Session window and a Select LU Category window
have been added. The Basic Printer Session Information option of
the Host Printer Session window displays the Host Printer Session
Information window. The LU Category Selection option displays the
Select LU Category window. (See "About the LU Categories" later in
this document for a discussion of the Select LU Category window's
options.)
- The LU Category Selection option has been added to the Host
Display Session window. This option displays the Select LU Category
window.
- The LU Group Name option has been deleted from the Host Display
Session Information window.
- The LU Group Name option has been deleted from the Host Printer
Session Information window.
About the LU Categories
When creating, inserting, or modifying a session, you specify which LU
NetWare for SAA allocates for the session. You do this by selecting the
LU Category Selection option, which has been added as discussed in "What
Has Changed?" above.
If you select the LU Category Selection option, WSCONFIG displays the
Select LU Category window. The Select LU Category window lets you
specify a public LU, pooled LU (the term pool is now used instead of
group to represent a set of host sessions that have been defined by your
NetWare for SAA system administrator), dedicated LU, or any LU. Details
on the different LU categories follow figure.
Public
A public LU is an unnamed LU that any workstation user can access. If a
public LU is requested, NetWare for SAA will allocate the first
available public LU that matches the type of LU that was specified.
IMPORTANT: If a public LU is requested, NetWare for SAA will not search
LU pools or dedicated LUs for an available LU.
Pooled
A pooled LU is an LU that belongs to a named LU pool. Your NetWare for
SAA system administrator may have defined an LU pool for your department
or for those users that need to access a specific application.
If you select the Pooled option, WSCONFIG prompts you to enter an LU
pool name. This name will be supplied to you by your NetWare for SAA
system administrator. When the workstation control program is started,
it will request a host session from the specified LU pool. NetWare for
SAA will verify that the specified LU pool contains Lus that match the
type of LU
that the workstation user is requesting and that the workstation user
has access rights to the specified LU pool. If both of these conditions
are met, NetWare for SAA will allocate the first LU available from the
specified pool.
Dedicated
A dedicated LU is a named LU that has been dedicated to a specific user
or for use in accessing a specific application. If you select the
Dedicated option, WSCONFIG prompts you to enter a dedicated LU name.
This name will be supplied to you by your NetWare for SAA system
administrator. When the workstation control program is started, it will
request the dedicated LU that you specified. NetWare for SAA will verify
that the specified dedicated LU matches the type of LU that the
workstation user is requesting and that the workstation user has access
rights to that LU. If both of these conditions are met, NetWare for SAA
will allocate the dedicated LU.
Any
The Any option is the same as specifying an asterisk (*) for LU Group
Name in the previous version of the workstation software. (Because the
Any option has replaced the asterisk's function, the asterisk is no
longer an acceptable single-character identifier for an LU.) If the Any
option is specified, NetWare for SAA will search all the LU pools, all
the dedicated Lus, and all the public Lus that the workstation user has
access rights to for a session that matches the type of LU being
requested.
IMPORTANT: If the Any option is specified and the workstation user has
access rights to pooled, dedicated, and public Lus that match the type
of LU the user is requesting, it cannot be predicted whether the
allocated LU will be a pooled LU, a dedicated LU, or a public LU.
Likewise, if the Any option is specified and the workstation user has
access rights to multiple LU pools that match the type of LU the user is
requesting, it cannot be predicted from which LU pool the LU will be
allocated.
How Are Previously Configured Lus Handled?
As discussed in the "What Has Changed?" section, the LU Group Name
option has been deleted. The following list describes how the new
workstation software handles Lus previously specified with the LU Group
Name option. You should be aware of this information before using the
new workstation software to change any configuration files created or
modified with the former workstation software.
> If an asterisk (*) was specified for the LU Group Name option,
the new software will automatically configure the LU as Any. You
can change this configuration if you want by using the Select LU
Category window to specify another LU category.
* If an actual name was specified for the LU Group Name option, the
new software will automatically configure the LU as Pooled. You can
display the LU pool name by selecting the Pooled option from the
Select LU Category window. If you want, you can use the Select LU
Category window to specify a different LU category.
What Do You Need to Do?
The following steps describe what you need to do if you want to use
version 1.1 of NetWare for SAA to connect a NetWare 3270 LAN Workstation
to a host. If this is the first time NetWare for SAA is being installed,
complete steps 1 through 4. If version 1.0 of NetWare for SAA was
previously installed, you need to complete all the steps.
Updating for Version 1.1 of NetWare for SAA
1. Instead of using the server name descriptions on pages 2-14, 3-7, and
3-17 of the NetWare 3270 LAN Workstation for DOS Configuration Guide,
use the following server name description:
The server name is the NetWare file server name for the server on
which NetWare for SAA is running. A server name can be from one to
47 non-blank, printable characters. If the asterisk (*) is
specified, the workstation control program will search all the
NetWare servers running NetWare for SAA for an available session.
The new server name description is necessary because of the
server name changes discussed in "What Has Changed?" earlier
in this document.
2. Ignore the LU Group Name descriptions on pages 3-8 and 3-17 of the
NetWare 3270 LAN Workstation for DOS Configuration Guide.
As discussed in "What Has Changed?", the LU Category Selection
option has replaced the LU Group Name option.
3. If your previous copy of WSLAN.CFG contains settings you want to
keep, rename that file. Otherwise skip this step.
Previous settings specified in WSLAN.CFG will be lost unless you
rename that file because the new version of WSLAN.CFG will
overwrite the existing file when you update the software as
described in Step 4.
4. Update the workstation software, by copying the files from the Update
Files for the NetWare 3270 LAN Workstation for DOS diskette to the
directory that contains the previous version of WSCONFIG.
The new files replace existing files that have the same name.
5. Change the server name specified in the workstation configuration
file to match the NetWare file server name for the server running
NetWare for SAA. Before changing the workstation configuration file,
make sure your NetWare for SAA system administrator has set up the
AUTOEXEC.NCF file to remove the previous server name. Example;
AUTOEXEC.NCF files are provided in the NetWare Communication Services
Administration Guide for version 1.1 of NetWare for SAA.