142 IBM Communications Server for AIX, V6: New Features and Implementation Scenarios
The previous figure shows an ESCON director between the host and the AIX
system. However, an ESCON director is not required. Up to two ESCON
directors may be used to extend the distance between the host and AIX
system up to 43 kilometers.
MPC+ links require HPR and support only independent LUs. Therefore, if
dependent LU (LU0, 1, 2, 3) support is required over an MPC+ link,
DLUR/DLUS must be used.
The overall CS/AIX support for channel connectivity is referred to as the
SNA
Channel for AIX
feature. Support for MPC+ connectivity is part of the SNA
Channel for AIX feature. See the IBM
Communications Server for AIX
Channel Connectivity Users Guide
, SC31-8219 for detailed information on all
the channel connectivity options supported by CS/AIX V6.
8.1 Hardware requirements
The SNA Channel for AIX feature of CS/AIX V6 supports both Micro Channel
Architecture (MCA) ESCON and Peripheral Component Interconnect (PCI)
ESCON adapter cards. In this book, we cover only the PCI ESCON adapter
configuration.
To install SNA Channel for AIX for the PCI ESCON adapter, you must have
the following hardware:
S/390 ESCON Channel PCI Adapter (Feature 2751)
ESCON fiber optic cabling and connections
One of the following RISC System/6000 models:
- 7017, all models
- 7025 Models F50 and F80
- 7026 Models H50, H70, H80 and M80
One of the following host systems:
- IBM ES/9000 Model 9021
- IBM 9672
8.2 Software requirements
To install SNA Channel for AIX for the PCI ESCON adapter, you must have
the following software:

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