Notes:
a. Attempt to perform an IPL from a remote location after exchanging each
part.
b. If you exchange the SYSBKPL card, you must set the correct date and time.
To set the correct date and time, perform Cannot Perform IPL at a
Specified Time (No SRC), step 4 on page 23
If the remote IPL does not complete successfully after you exchange all the
parts listed, ask your next level of support for assistance.
This ends the procedure.
18. Was the entry isolated (is there a Y in the Isolated column)?
Yes No
↓ Go to “Chapter 2. Unit Reference Codes” on page 59 and use the SRC
indicated in the log.
This ends the procedure.
19. Display the failing item information for the log entry. Items at the top of the
failing item list are more likely to fix the problem than items at the bottom of
the list.
Exchange the failing items one at a time until the problem is repaired. After
exchanging each one of the items, verify that the item exchanged repaired the
problem.
Notes:
a. For Failing Items (FIs) and symbolic FRUs, go to “Chapter 3. Problem
Isolation Procedures (PIPs), Failing Items, and Symbolic FRU Isolation” on
page 277 .
b. When exchanging FRUs, go to “Chapter 4. Removal and Installation
Procedures” on page 617. If you are exchanging a disk unit, go to
“Recovery Procedures” on page 893.
c. After exchanging an item, go to “Verifying the Repair” on page 920
Once the problem has been resolved, close the log entry.
This ends the procedure.
System Hangs or Loops (No SRC)
You are here because:
v System operation is hung (very low processor activity indicated on the control
panel with workstation(s) input inhibited).
v System operation is in a loop (very high processor activity indicated on the
control panel with workstation(s) input inhibited).
A system hang or loop is the result of either:
v A software failure.
v Software improperly handling a hardware failure.
This procedure assumes that the system completed an IPL and that at least one
user had successfully signed on before the condition occurred.
The purpose of this procedure is to:
IPL Problems
Chapter 1. Starting Problem Analysis 31
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