IBM RS/6000 SP, Maintenance Information

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MAP 0500: Ethernet LAN
014
Problem affecting individual processor node(s) I/O adapter card Ethernet connection.
– Verify with customer that jobs on this processor node are completed.
– SP-attached servers (RS/6000 Machine Types 7017 S70 and S7A), consult the
RS/6000 Enterprise
Servers S70 and S7A Installation and Service Guide to perform the required service action and return to
this MAP Step 016.
Note: Before disconnecting cables or performing service actions on an SP-attached server, perform
"Decoupling and Coupling Code for SP-Attached Servers" in
RS/6000 SP: Maintenance Informa-
tion, Volume 3.
– Open the rear cover of the RS/6000 SP frame, and locate the proper processor node.
– Use the following table to reseat or replace components:
Priority Component Action
1 T-adaptor (coax) or TTP transceiver
on Micro Channel Ethernet card 1. Check the connection at the T-adaptor (coax) or TTP
transceiver on the Micro Channel Ethernet card and
tighten as necessary.
2. If no problem was found continue at Priority 2; other-
wise, verify fix at Step 016.
2 (Planar power problem) 1. From the control workstation, reset this processor
node.
2. Check 3-digit LEDs for any non-blank condition
during IPL.
3. If the 3-digit LEDs are always blank, go to Step 006
on page 1-98 to fix the planar power problem. Oth-
erwise, continue at Priority 3.
3 Ethernet adapter card 1. Put circuit breaker at front of processor node in the
Off (‘0’) position. If this is a thin node, remove
processor node from frame.
2. Remove processor node cover or open drawer.
3. Replace the Ethernet adapter card.
4. Continue at Step 015.
4 All replaced Call next level of support.
015
Component reseated or replaced.
– If this is a thin/wide processor node, reinstall processor node top cover(s).
– Reinstall processor node in frame. Make sure to reconnect cables at back of processor node.
– Put circuit at the front of processor node in the On (‘1’) position.
– Go to Step 016 to verify fix.
016
– If you just replaced the I/O planar on a thin/wide processor node or the Ethernet adapter card, then
perform "Updating the Ethernet Hardware Address" in
IBM RS/6000 SP: Maintenance Information,
Volume 3, Locations and Service Procedures before continuing.
– If you just reseated or replaced a Ethernet adapter card, the customer must log into the processor
node, using the TTY console. Log in as “root:”.
– Enter one of the following commands:
ifconfig en0 up
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RS/6000 SP MAPs