Use the
″
Service Action Log
″
(SAL) to check for other errors under the same
multi-adapter bridge using the following steps:
1.
Were you able to obtain a location for the PIOCARD FRU from the SAL?
No
Yes
↓
Go to step 6 of this procedure.
2.
Find the SRC in the SAL and record the Direct Select Address (DSA) in word 7.
See “Breaking Down The SRC” on page 280 to find the DSA in the SRC.
3.
Record the Bus number (
BBBB
part) of the DSA and the Multi-adapter bridge
number of the DSA. The multi-adapter bridge number is the first character of
the card identifier part (
Cc
) in the DSA. See “Breaking Down The SRC” on
page 280 to find the DSA in the SRC.
4.
Go to “BUS PIP PCIBUS-PIP1” on page 320 to determine the location of the PCI
I/O Card in the failing item list. Return here and continue with step 5 of this
procedure.
5.
Using the card position table for the frame or I/O tower type that you recorded
in BUS PIP PCIBUS-PIP1. Determine which of the card positions within the
frame or I/O tower are controlled by the same multi-adapter bridge that is
controlling the PCI I/O card for which you determined the location in step 4 of
this procedure. See “Card Position Tables” on page 282. A card position is
controlled by the same multi-adapter bridge if it has the same bus number and
multi-adapter bridge number as the PCI I/O Card that you located in step 4 of
this procedure. Record the card position and the DSA from the card position
table for each card position that is controlled by the same multi-adapter bridge.
6.
Look in the
″
Service Action Log
″
(SAL), see “Using the Service Action Log” on
page 9. Look for other failures in the same frame that are located in any of the
card positions that you recorded in step 5 or that are listed in the SAL with the
PIOCARD FRU.
7.
Are there any other failures within the same frame that correspond with any of
the card positions that you recorded in step 5 or that are listed in the SAL with
the PIOCARD FRU?
No
Yes
↓
The multi-adapter bridge is failing. Remove symbolic FRU PIOCARD
from the list of failing items, it is not the failing FRU.
8.
Use the failing item list that you were using when you started this procedure.
BUS PIP MAB-03
BUS PIP MAB-03: Isolate to Failing multi-adapter bridge Resource
This procedure will isolate a failing I/O processor or I/O adapter under a
multi-adapter bridge. The procedure will iterate through each IOP under the
multi-adapter bridge, powering each one off, and then resetting the multi-adapter
bridge. This process will be repeated until the failing part is isolated.
1.
Does the system IPL to DST?
Yes
No
↓
Perform “BUS PIP MAB-04” on page 317.
This ends the procedure.
2.
Go to the SST/DST screen in the partition which reported the problem. Use
STRSST if OS/400 is running, use function 21 if STRSST does not work, or IPL
the partition to DST.
Bus, High-Speed Link (HSL) PIPs
Chapter 3. Problem Isolation Procedures (PIPs), Failing Items, and Symbolic FRU Isolation
315
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