NEC N8800-149F User Manual page 178

7-14 Troubleshooting
The server is not found on the network:
Is the LAN cable connected?
→ Make sure to connect the LAN cable to the network port on the rear of the server.
Also make sure to use the LAN cable that conforms to the network interface
standard.
Have the protocol and services already setup?
→ Install the distinctive network driver for the server. Make sure that the protocol, such
as TCP/IP, and services are properly specified.
Is the transfer speed correct?
→ The built-in LAN controller mounted as standard on this server can be used in
network with the transfer speed of 1000Mbps, 100Mbps or 10Mbps. You can change
the transfer speed or configure the setting from OS. However, do not use the "Auto
Detect" function. Fix the setting of the transfer rate to the same with that of the
connected hub. Also, check if the duplex mode is the same with that of the connected
hub.
Machine repeats rebooting at startup:
Isn't the OS boot monitoring function enabled for reset?
→ When you are using the NEC Express5800/ft series, the OS boot monitoring function
must be disabled in the following cases. For information on disabling the OS boot
monitoring, see "Step 4 Invalidate OS Boot Monitoring function" in User's Guide
(Setup).
- When execuing the maintenance such as system update.:
- When any daemon or drive does not work correctly due to a failure or error:
* For the device configuration with large memory or disk volume, it is recommended
Is the value of [OS Boot Monitoring] in the BIOS setting appropriate?
→ Change the value of [OS Boot Monitoring] to suit your environment.
(For details, see page 4-28 "Monitoring Configuration.")
Memory dump (debug information) cannot be collected when a failure occurs:
Do you press the DUMP switch correctly?
→ Hold down the DUMP switch for 3 to 8 seconds if you would like to collect
memory dump by pressing the switch. If you press DUMP switch less than 3
seconds or more than 8 seconds, you will not be able to collect memory dump.
Check if you are not using a physical processor of CPU #0 for the virtual machine.
→ If a physical processor of CPU #0 is allowed to be used for the virtual machine,
memory dump may not be collected even when pressing the DUMP switch. To
operate the machine assuming to collect memory dump, set the value other than "0"
for the property of "Scheduling Affinity" of the virtual machine.
to change the default BIOS setup 10 minutes to an appropriate value.