IBM iSeries Series Hardware Problem Analysis And Isolation page 92

4. Exchange the FRU containing the HSL port on the failed link in the other system unit. If the error was
cleared up by exchanging the HSL port on the failed link, Verify the repair.
5. If you are working on a system Model 800, 810, 825, 870, or 890, then use symbolic FRU "BUSCBL1,
BUSCBL2, BUSCBL3, or BUSCBLx" on page 292. For all other systems, use symbolic FRU
"SIRGCBL" on page 453 to replace other cable related items that may be on either frame, such as
interposer cards and cable wraps. If the error was cleared up by exchanging these items, go to Verify
the repair.
6. If the error still persists, call your next level of support for further instruction.
The port on one end of the failed link is in a system unit and the port on the other end is in an I/O tower:
1. Switch the two bus cables on the I/O tower's failed port, so that the cable that was connected to port 1
will now be in port 0, and the cable that was connected to port 0 will now be in port 1.
Attention: You must fully connect the cable and tighten the connector's screws within 30 seconds of
when the cable makes contact with the port. Otherwise, the link will fail and you must disconnect and
reconnect again. Also, if the connector screws are not tightened, errors will occur on the link and it will
fail.
2. Refresh the port status for the first failing resource by doing the "Refresh the port status" on page 82
subtask in this document, then continue with the next step.
3. If the port on the system unit that failed is now working, use the symbolic FRU "SIIOADP" on page 450
to exchange the HSL I/O bridge card in the I/O tower. Go to Verify the repair.
4. Switch the cables back to their original positions.
Attention: You must fully connect the cable and tighten the connector's screws within 30 seconds of
when the cable makes contact with the port. Otherwise, the link will fail and you must disconnect and
reconnect again. Also, if the connector screws are not tightened, errors will occur on the link and it will
fail.
5. Exchange the cable between the two ports on the failed link. If the error was cleared up by exchanging
the cable, go to Verify the repair.
6. Exchange the HSL FRU that contains the failing port in the system unit. If the error was cleared up by
exchanging the HSL port on the failed link, go to Verify the repair.
7. If you are working on a system Model 800, 810, 825, 870, or 890, then use symbolic FRU "BUSCBL1,
BUSCBL2, BUSCBL3, or BUSCBLx" on page 292. For all other systems, use the symbolic FRU
"SIRGCBL" on page 453 to replace other cable-related items that may be on either frame, such as
interposer cards and cable wraps. If the error was cleared up by exchanging these items, go to Verify
the repair. If the error still has not cleared up, call your next level of support for further instructions.
The ports on both ends of the failed link are in an I/O tower:
1. Switch the two bus cables on the first I/O tower's failed port so that the cable that was connected to
port 1 will now be in port 0, and the cable that was connected to port 0 will now be in port 1.
Attention: You must fully connect the cable and tighten the connector's screws within 30 seconds of
when the cable makes contact with the port. Otherwise, the link will fail and you must disconnect and
reconnect again. Also, if the connector screws are not tightened, errors will occur on the link and it
will fail.
2. Refresh the port status for the first failing resource by doing the "Refresh the port status" on page 82
subtask in this document, then continue with the next step.
3. If the port on the I/O tower on which you did NOT switch cables is now working, use the symbolic
FRU "SIIOADP" on page 450 to exchange the HSL I/O bridge card in the I/O tower on which you DID
switch the cables. Go to Verify the repair.
4. Switch the cables back to their original positions.
Attention: You must fully connect the cable and tighten the connector's screws within 30 seconds of
when the cable makes contact with the port. Otherwise, the link will fail and you must disconnect and
reconnect again. Also, if the connector screws are not tightened, errors will occur on the link and it
will fail.
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iSeries: iSeries Server 270, 800, 810, 820, 825, 830, 840, 870, 890, SB2, and SB3 Hardware Problem Analysis and Isolation