IBM 72332MU Installation Guide - Page 88

customer replaceable units CRU and which components are field replaceable units FRU., is solved.

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v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See the parts listing in the Problem Determination and Service Guide to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU). v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a trained service technician. Lit light path diagnostics LED with the system-error LED also lit Description Action DASD A hard disk drive has failed or has been removed. Note: The error LED on the failing hard disk drive is also lit. 1. Reinstall the removed drive. 2. Reseat the following components: a. Failing hard disk drive b. SAS hard disk drive backplane c. SAS signal cable d. I/O board shuttle assembly 3. Replace the components listed in step 2 one at a time, in the order shown, restarting the server each time. RAID The RAID controller has indicated a fault. 1. Check the BMC log or the system-error log for information. 2. Reseat the following components: a. RAID controller, if possible b. Hard disk drives c. I/O board shuttle assembly 3. Replace the components in step 2 one at a time, in the order shown, restarting the server each time. BOARD The microprocessor board or I/O board has failed. 1. Find the failing board by checking the LEDs on the microprocessor board and I/O board. 2. Reseat the failing board. 3. Replace the failing board. 76 IBM System x3850 M2 and System x3950 M2 Types 7141 and 7233: Installation Guide

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v
Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v
See the parts listing in the
Problem Determination and Service Guide
to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v
If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Lit light path
diagnostics LED with
the system-error LED
also lit
Description
Action
DASD
A hard disk drive has failed or has
been removed.
Note:
The error LED on the failing
hard disk drive is also lit.
1.
Reinstall the removed drive.
2.
Reseat the following components:
a.
Failing hard disk drive
b.
SAS hard disk drive backplane
c.
SAS signal cable
d.
I/O board shuttle assembly
3.
Replace the components listed in step 2 one at a
time, in the order shown, restarting the server each
time.
RAID
The RAID controller has indicated a
fault.
1.
Check the BMC log or the system-error log for
information.
2.
Reseat the following components:
a.
RAID controller, if possible
b.
Hard disk drives
c.
I/O board shuttle assembly
3.
Replace the components in step 2 one at a time,
in the order shown, restarting the server each time.
BOARD
The microprocessor board or I/O
board has failed.
1.
Find the failing board by checking the LEDs on the
microprocessor board and I/O board.
2.
Reseat the failing board.
3.
Replace the failing board.
76
IBM System x3850 M2 and System x3950 M2 Types 7141 and 7233: Installation Guide