IBM iSeries 820 Hardware Problem Analysis And Isolation

v Yes: Print all product activity logs. Print the LIC LOGs with a major code of 1000. Provide your
next level of support with this information.
This
ends the procedure.
v No: This ends the procedure.
6. Are characters 7-8 of the top 16 character line of function 12 (2 rightmost characters of word 2) equal
to 13 or 17?
v Yes: Continue with the next step.
v No: Go to step 10 (See page 139).
7. Use the word 1 through 9 information recorded on the Problem summary form to determine the disk
unit that stopped communicating with the system:
v Characters 9-16 of the top 16 character line of function 12 (word 3) contain the IOP direct select
address.
v Characters 1-8 of the bottom 16 character line of function 12 (word 4) contains the unit address.
v Characters 1-8 of the top 16 character line of function 13 (word 6) may contain the disk unit type,
level and model number.
v Characters 13-16 of the top 16 character line of function 13 (4 rightmost characters of word 7) may
contain the disk unit reference code.
v Characters 1-8 of the bottom 16 character line of function 13 (word 8) may contain the disk unit
serial number.
Note: For 2105 and 9337 Disk Units, characters 4-8 of the bottom 16 character line of function 13
(5 rightmost characters of word 8) contain the disk unit serial number.
8. Is the disk unit a 9337?
v No: Continue with the next step.
v Yes: Go to step 21 (See page 141).
9. Is the disk unit reference code 0000?
v Yes: Determine the IOP type by using characters 9-12 of the bottom 16 character line of function
13 (4 leftmost characters of word 9). Find the unit reference code table for the IOP type in System
Reference Codes. Determine the unit reference code by using characters 13-16 of the bottom 16
character line of function 13 (4 rightmost characters of word 9). Perform problem analysis for the
unit reference code.
This ends the procedure.
v No: Using the information from step 7 (See page 139), find the table for the indicated disk unit type
in System Reference Codes. Perform problem analysis for the disk unit reference code.
This
ends the procedure.
10.
Are characters 7-8 of the top 16 character line of function 12 (the two rightmost characters of word 2)
equal to 27?
v Yes: Continue with the next step.
v No: Go to step 16 (See page 140).
11.
Use the word 1 through 9 information recorded on the Problem summary form to determine the disk
unit that stopped communicating with the system:
v Characters 9-16 of the top 16 character line of function 12 (word 3) contain the IOP direct select
address.
v Characters 1-8 of the bottom 16 character line of function 12 (word 4) contains the disk unit
address
v Characters 9-16 of the bottom 16 character line of function 12 (word 5) contains the disk unit type,
level and model number.
v Characters 1-8 of the bottom 16 character line of function 13 (word 8) contains the disk unit serial
number.
Analyze hardware problems 139

IBM iSeries 820 Specifications

General

Brand	IBM
Model	iSeries 820
Category	Server
Language	English