HP L1000 - 9000 - 0 MB RAM User Manual page 104

Troubleshooting
Troubleshooting and FRU identification
Table 6-1 Problem Symptoms and Repair Actions (Continued)
Problem or Problem
Symptom Indicators
Can't boot to Console
ISL. messages
indicating
problems
booting from
the primary or
alternate boot
path.
Can't boot HP-UX boot
HP-UX. error
messages.
RUN LED
BLINKING.
90
Normal
Functioning Troubleshooting Steps
Indicators
• Console
messages and
prompt
indicating you
are at ISL.
• HP-UX boot
messages.
• HP-UX
prompt.
• RUN LED on
SOLID.
1. Use BCH commands
to verify I/O and
presence of valid LIF
devices.
2. Use BCH
"Warn"command to
determine if Boot is
disabled.
3. Check for IODC
tombstones.
4. Check SP chassis
error logs.
1. Check SP chassis
error logs.
2. Run ODE
diagnostics.
Potential FRUs
• Disk Drive
• Disk Media
Backplane
• LAN/SCSI
Board
• I/O
Backplane
• Processor
• Disk Drive
• Disk Media
backplane
• LAN/SCSI
• Corrupt
HP-UX
Chapter 6