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Run the bootinfo –p command.
The system platform type is returned.
Block Multiplexer Channel Adapter
The Block Multiplexer Channel Adapter allows the system unit to directly attach to a
system–370/390–type block multiplexer channel.
The block multiplexer channel adapter responds to channel commands similar to a 3088
Channel–to–Channel Adapter. However, this adapter does not support full emulation of a
3088.
The block multiplexer channel adapter may also be attached to a host system using the
3044 Model 2 Channel Extender or the 9034 Model 1 ESCON Converter.
Up to two block multiplexer channel adapters may be installed in a system unit.
Since the system is directly attached to the bus and tag cables of the box multiplexer
channel of the host system, careful consideration must be made before doing the following:
Turning off the system unit.
Loading and running the diagnostic programs.
Changing position of the bypass switch on the interface cable.
Connecting or disconnecting any of the cables to the adapter or interface assembly.
Use the following guidelines to understand the actions needed.
Starting or Stopping Communications With the Host System
An operator console for the system is required. The console may be a direct–attached
display and keyboard or an ASCII terminal.
Changes to the on–line or off–line status of the block multiplexer channel adapter is made
using the System Management Interface Tool (SMIT). If there are two block multiplexer
channel adapters installed in this system unit, the status of each adapter must be changed
individually.
Stopping Communications
Use the following steps as a guideline for stopping communications with a host block
multiplexer channel:
1. Have the operator of the host system stop any communications with this block
multiplexer channel adapter.
2. Stop all application programs on this system that use this block multiplexer channel
adapter.
3. Use SMIT to change the status of this adapter to offline . If needed, see the AIX Version
4.1 Block Multiplexer Channel Adapter: User's Guide and Service Information for
procedures.
If you have another block multiplexer channel adapter in this system unit, you must use
this same procedure to stop it.
Starting Communications
Use the following steps as a guideline for starting communications with a host block
multiplexer channel:
3-16
Operator Guide
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