Step 13. (from step 12)
Does any 7133 Model D40 or Model T40 have its Power light off or
flashing?
NO
Go to step 14.
YES
v
If the Power light is off, go to “MAP 2020: 7133 Models D40 and
T40 – Power” on page 95.
v
If the Power light is flashing, go to step 16 on page 92.
Step 14. (from step 13)
Do you have SRN 300C0 or 2A006?
NO
Go to step 15.
YES
Use the SSA service aids to check whether any disk drive module
has detected the loss of redundant power or cooling (see Displaying
Link and Power Problems in the “Additional Information” appendix (in
this book) for your using system).
v
If any disk drive module is reporting the loss of redundant power
or cooling:
a. Exchange that disk drive module for a new one (see “Disk
Drive Modules and Dummy Disk Drive Modules” on page 150).
b. Go to “MAP 2410: 7133 Models D40 and T40 – Repair
Verification” on page 131 to verify the repair.
v
If no disk drive module is reporting the loss of redundant power or
cooling, the problem might have been already solved, or it is
intermittent. Go to “MAP 2410: 7133 Models D40 and T40 –
Repair Verification” on page 131 to verify the repair.
Step 15. (from step 14)
Do you have SRN 301C0 or 2A106?
NO
Go to the SSA Link MAP in the user or maintenance information for
your using-system SSA attachment.
YES
v
If the system error log contains any 80XXX SRNs, go to “Service
Request Numbers (SRNs)” on page 75, and follow the instructions
given for those SRNs.
v
If the problem remains, or if the system error log does not contain
any 80XXX SRNs do either or both of the following actions, as
appropriate:
– If the loop contains SSA enclosures that are not 7133 Models
D40 or T40, those 7133s might be the cause of this problem.
Follow the procedure given for “YES” in step 14.
– Exchange the controller card assembly for a new one (see
“Controller Card Assembly” on page 199), then go to “MAP
2410: 7133 Models D40 and T40 – Repair Verification” on
page 131 to verify the repair.
Chapter 2. Problem Determination Procedures
91
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