Problem Of Os Operation - NEC Express5800 Series Maintenance Manual

Chapter 1 Maintenance
[?] A POST Error message or an IML message will be registered on an arbitrary server where the Flash
Backup Unit (FBU) is configured for the Smart Array Controller

Check that Flash Backup Unit (FBU) is properly installed.

Confirm whether Flash Backup Unit (FBU) is fully charged.

Update the system ROM.
[?] An error, retry, time-out, or a drive error not included in the guarantee occurs when an old Mini-SAS cable
is used.

The product life cycle of Mini-SAS connector is 250 times of connection/disconnection (outer, inner and
cable Mini-SAS connector).

If you use an old Mini-SAS cable whose product life cycle is ending, replace it.
[?] In a connection using SUV cable, a USB device is not recognized, an error message is displayed, or a
device cannot be turned on.

Remove the USB device and execute any of the followings.
・Connect a USB device which needs less than 500mA of electricity.
・Connect the USB hub of external power source to the SUV cable and connect the USB device to the
hub.
[?] On the flow control of LAN Controller

In case Flow Control is set to "Auto Negotiation", "Rx & Tx Enabled", "Tx Enabled" or "transmission
enabled", or "transmission/reception enabled", when the packet processing of OS stops in the state of
heavy reception load due to system hang etc., PauseFrame might be transmitted continuously. In such
cases, due to massive pile-up of packets at the switch side, the buffer within the switch becomes scarce
and all communication devices connected to the switch may be affected. In order to avoid such cases,
set Flow Control to "Disabled" or "Invalid".
5.7

Problem of OS Operation

[?] Windows operation is unstable
 Have you installed Starter Pack?

See "Installation Guide (Windows)" to install Starter Pack.
If you restore the Windows from a backup tool, Starter Pack is needed to install again.
[?] Cannot turn the power OFF at the blue screen (STOP error screen)

Perform the forced shutdown (continue to press the power switch at least four seconds) to turn off the
server.
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Express5800/R120h-1E, R120h-2E Maintenance Guide
5. Troubleshooting