7-26 Troubleshooting

The keyboard or mouse fails to operate:

†Is the cable properly connected?

οMake sure that the cable is connected to the correct connector on the rear of the server.

†Are the keyboard and mouse are compliant with NEC Express5800/ft series?

οOperation of the server with unauthorized devices is not guaranteed.

†Does the server have drivers installed?

οRefer to the manual that comes with your OS to check that the keyboard and mouse drivers are installed. (These drivers are installed along with the OS.) Some OS's allow you to change the keyboard and mouse settings. Refer to manual that comes with your OS to check that the keyboard and mouse settings are correct.

Screen freezes, keyboard and mouse do not work:

οIf the amount of memory is large, it takes time to copy the memory in dual mode and the system stops working temporarily during the copying, but it is not system trouble.

Fail to access (read or write) to the floppy disk:

†Does the floppy disk drive contain a floppy disk?

οInsert a floppy disk into the floppy disk drive until it clicks.

†Is the floppy disk write-protected?

οPlace the write-protect switch on the floppy disk to the "Write-enabled" position.

†Is the floppy disk formatted?

οUse a formatted floppy disk or format the floppy disk in the floppy disk drive. Refer to the manual that comes with the OS for formatting a floppy disk.

†Is the media mounted?

οIf a failover occurs while the media is mounted, the media is forcibly unmounted. Therefore you need to mount it again. (When mounting CPU/IO module and at a failover, errors such as buffer I/O error may be recorded, but there is no problem on operation they are specifications of the server.) After the failover, device name of the floppy disk drive may be changed (Ex. from scd0 to scd1), that phenomenon is due to the specifications of the server and does not affect the operation. In such a case, specify the changed device name for mounting the media.

Mount point is not automatically created:

If mount point is not automatically created, the service needs to be restarted. Run the following commands as root user to start the service.

#/etc/init.d/messagebus restart

#/etc/init.d/haldaemon restart

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NEC N8800-091F, EXP320A, EXP320B manual Keyboard or mouse fails to operate, Screen freezes, keyboard and mouse do not work
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N8800-091F, EXP320B, EXP320A, N8800-090F specifications

The NEC N8800-090F, EXP320A, EXP320B, and N8800-091F are advanced computing solutions designed for demanding enterprise environments. These models are part of NEC's high-performance computing portfolio, tailored for data-intensive applications and virtualization.

The N8800-090F is a robust server featuring powerful multi-core processors, providing exceptional performance for complex calculations and heavy workloads. This server supports a variety of memory configurations, enabling scalability and flexibility to meet the evolving needs of businesses. Its architecture is designed to facilitate high availability, ensuring that critical applications remain operational even in the event of hardware failures.

The EXP320A and EXP320B are expansion units that complement the N8800 series by providing additional storage and I/O capacity. They are ideal for organizations that require massive data storage solutions. These expansion units support different types of storage media, including high-speed SSDs and high-capacity HDDs. This allows for a customizable approach to data management, catering to various performance and capacity requirements.

One of the standout features across these models is their support for advanced virtualization technologies. The systems are equipped with features that enable efficient resource management, allowing multiple virtual instances to run on a single physical server without significant performance degradation. This is crucial for businesses looking to optimize their IT resources and improve operational efficiency.

Furthermore, NEC has integrated advanced security features into these servers to protect sensitive data and ensure compliance with industry regulations. This includes hardware-based security mechanisms, secure boot processes, and comprehensive management tools that provide organizations with enhanced control over their server environments.

Overall, the NEC N8800-090F, EXP320A, EXP320B, and N8800-091F present a compelling choice for enterprises looking for reliable, scalable, and high-performance computing solutions. With their cutting-edge technologies and robust design, these models aim to support the growth and adaptability of modern IT infrastructures while delivering exceptional performance for a wide range of applications.
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