NEC EXPRESS 320Lb-R - Manual (Page 230)

7-30 Troubleshooting
OS behavior is unstable:
Have you changed kernel?
→ Make sure that you have not applied patches for general kernel or you have not
changed the kernel installed for the device.
Are you accessing to the directories or files under /dev or /proc?
→ NEC Express5800/ft series frequently saves and updates the information on the
system operation and management at the following directories. Thus, if you access
the directories or files under the following directories, for example, by using
command, it may affect the fault-tolerant feature and cause the system to become
unstable. Make sure not to access to the directories or files.
/dev/mem
/proc/kcore
/proc/bus
/proc/ft/bb/cpu[0,1]/dump
/proc/ide
Cannot install Linux properly:
Did you follow the precautions for installation?
→ Read the precautions for installation again.
Did you install Linux with the proper procedure?
→ Check the installation procedure again. Make sure to install Linux with the proper
procedure.
Cannot read the character on the console after the PCI failover caused by the PCI
module failure:
→ Infrequently, the character on the console screen may be distorted at the time of
PCI module failover. It does not affect any operations of the device. Execute the
following command:
>/sbin/setsysfont
The server repeats rebooting at system startup:
Is the value of [Boot Monitoring Time-out Period] in the BIOS setting appropriate?
→ Change the value of [Boot Monitoring Time-out Period] to suit your environment.
For details, see Chapter 4 “SYSTEM BIOS ~ SETUP ~ ”.)
Disk access LEDs on the disks are off:
→ The LEDs may seem to be off when an excessive amount of access causes the
frequent blinking. Check if the LEDs are blinking green when the access is
reduced, or the LEDs are green when the access is stopped.