Running The System Diagnostics; Error Log Entries; Solving System To Tape Control Unit Communication Problems; Cabling The System Unit To The Host System - IBM R/S6000 7012 300 Series Operator's Manual

1. Use SMIT to change the status of this adapter to online . If needed, see the
POWERstation and POWERserver S/390 Enterprise Systems Connection Channel
Emulator: User's Guide and Service Information for procedures.
2. Start the application programs that need to use this ESCON channel emulator adapter.
3. Have the operator of the host system start communications with this ESCON channel
emulator adapter.
If you have another ESCON channel adapter in this system unit, you must use this same
procedure to start it.

Running the System Diagnostics

Since the system is directly attached to the channel of the tape control unit, the
communications between the host system and all of the ESCON channel emulator adapters
must be stopped before diagnostics are run on any ESCON channel emulators. See "Taking
the Control Unit Offline with SMIT" for this adapter for general guidelines, or see the
POWERstation and POWERserver S/390 Enterprise Systems Connection Channel
Emulator: User's Guide and Service Information for detailed procedures.
Before disconnecting any cables from the adapter, the tape control unit must be stopped.
Get the system operator to do this for you.
The system diagnostics allow wrap testing at the adapter connector. See the
POWERstation and POWERserver S/390 Enterprise Systems Connection Channel
Emulator: User's Guide and Service Information for detailed procedures.

Error Log Entries

The error log in the Version 3 of the AIX Operating System may provide valuable
information for problem solving.
For a description of the system error logging and the error log entries representing this
adapter, see the following manuals:
AIX Version 4.1 Problem Solving Guide and Reference , form number SC23–2606
Adapters, Devices, and Cable Information , form number SA23–2764
POWERstation and POWERserver S/390 Enterprise Systems Connection Channel
Emulator: User's Guide and Service Information :ehp1. form
number SA23–2722.

Solving System to Tape Control Unit Communication Problems

Use the and the POWERstation and POWERserver S/390 Enterprise Systems Connection
Channel Emulator: User's Guide and Service Information and the AIX Version 4.1 Problem
Solving Guide and Reference to solve operational problems after initial installation.
For installation problems, use the AIX Enterprise Systems Connection Channel Tape
Attachment/6000: Installation and User's Guide to be sure the software is installed, the
channel is cabled correctly, and the system and tape control unit system are configured
correctly.
If there is a fiber cable problem, consult Maintenance Information for Enterprise System
Connection Links , SY27–2597.

Cabling the System Unit to the Host System

Refer to Adapters, Devices, and Cable Information , form number SA23–2764, for more
cabling information.
Using the Standalone and Online Diagnostics
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