IBM 7133 D40, Руководство по обслуживанию

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Service Request Numbers (SRNs)
Service request numbers (SRNs) are generated for the 7133 Models D40 and T40 by
the system error-log analysis, system configuration code, diagnostics, and customer
problem-determination procedures. SRNs help you to identify the cause of a problem,
the failing field-replaceable units (FRUs), and the service actions that might be needed
to solve the problem.
The SRN Table
The table in this section lists the SRNs and describes the actions you should do. The
table columns are:
SRN The service request number.
FRU list The FRU or FRUs that might be causing the problem (see also “FRU Names
Used in the SRN Table” on page 76), and how likely it is (by percentage) that
the FRU is causing the problem.
Problem A description of the problem and the action you must take.
Abbreviations used in the table are:
FRU Field-replaceable unit
PAA P = Attachment port number
AA = SSA address
(see also “Additional Device Location Information” on page 59)
Using the SRN Table
Important: You should have been sent here from MAP 2010: 7133 Models D40 and
T40 – START. Do not start problem determination from the SRN table;
always go to “MAP 2010: 7133 Models D40 and T40 – START” on page 87
first.
1. Locate the SRN in the table. If you cannot find a particular SRN in the table, go
to the SRN list that is in the user or maintenance information for your using-system
SSA attachment. If you still cannot find the SRN, you have a problem with the
diagnostics, the microcode, or the documentation. Call your support center for
assistance.
2. Read carefully the “Action” you must do for the problem. Do not exchange FRUs
unless you are instructed to do so.
3. Normally exchange only one FRU at a time, starting from the top of the FRU list for
that SRN. Always use instructions given in Chapter 3, “Removal and Replacement
Procedures” when exchanging FRUs; a page reference is given with each FRU in
the FRU list. After each FRU is exchanged, go to “MAP 2410: 7133 Models D40
and T40 – Repair Verification” on page 131 to verify the repair.
Chapter 2. Problem Determination Procedures
75