Multi-tech-systems 40-01459-D0-001 Manual do Utilizador descarregar pdf (Página 44)

38 PCI ESCON Adapter Installation Guide

Mainframe Configuration

This section discusses configuration of the mainframe for use with TCP/IP Direct

Connect over a Channel-to-Channel (CTC) link. Mainframe configuration for

Communications Server, SNA Server, TCP/IP Passthrough for Windows NT, and

MPC+ for Windows is discussed in the user’s guide that accompanied each individual

product.

OS/390 Device Definition

As discussed in the previous section, TCP/IP Direct Connect over CTC uses two

adjacent sub-channel addresses.

The two sub-channel addresses must both be defined to the mainframe as Serial

Channel-to-Channel (SCTC) devices.

OS/390 Version 2 Release 4 and above uses the HCD Configuration Utility, a menu-

based interactive program to complete this task. Refer to the OS/390 HCD User’s

Guide for instructions on using HCD.

Make sure the Subchannel Address field on the TCP/IP Direct Connect Properties

screen points to the device address in the ESCON Configuration for a SCTC device

that has been defined in HCD (see Figure 5-23).

OS/390 Parmlib Update

You must turn off the missing interrupt handling processes in OS/390 for the device

addresses being used for TCP/IP Direct Connect. To do this add the following

statement to the SYS1.PARMLIB(IECIOSxx) member:

MIH TIME=00:00,DEV=(xxx-yyy)

where xxx-yyy defines the range of devices being used by TCP/IP Direct Connect.

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Multi-tech-systems 40-01459-D0-001 Manual do Utilizador Página 44