Manuals / NEC / Computer Equipment / Server

NEC N8800-091F, EXP320A Dump Initialization, Check diskdump partition Dump file creation area

Models: N8800-091F EXP320B EXP320A N8800-090F

1 358
Download 358 pages 35.98 Kb
Page 94
Image 94

3-12 Linux Setup and Operation

DUMP INITIALIZATION

1. Checking partition for diskdump

 

 

 

1-1. Check /var/crash (Dump file storage area)

 

 

# df

 

 

 

 

 

Filesystem

1K-blocks

Used

Available Use%

Mounted on

/dev/md1

40313912

5152136

33113896

14%

/

/dev/md0

194366

17729

166602

10%

/boot

none

1035356

0

1035356

0%

/dev/shm

/dev/md3

10080364

1089312

8478988

12%

/var/crash

Note: Unless you have created /var/crash partition, it does not exist. The dump file will be created on the partition that the root file system exists.

1-2. Check diskdump partition (Dump file creation area)

#fdisk /dev/md*

Run “p print the partition table.”

*When HAS is loaded, run it at “fdisk /dev/had*.”

*Check that dump partitions exist as many as the disks in fdisk.

Device Boot

Start

End

Blocks

Id

System

/dev/hada1

1

25

200781

fd

Linux raid autodetect

/dev/hada2

26

5124

40957717+

fd

Linux raid autodetect

/dev/hada3

5125

5379

2048287+

fd

Linux raid autodetect

/dev/hada4

5380

8899

28274400

5

Extended

/dev/hada5

5380

6654

10241406

fd

Linux raid autodetect

/dev/hada6

6655

7929

10241406

83

Linux

Check the partition which is created for diskdump and the ID is 83.

In this example hada6 is the dump partition.

Note: If 1-1 and 1-2 do not exist, reinstall the OS. Create a dump partition in the phase of partition creation during installation.

2.Initializing the diskdump partition 2-1. Edit /etc/sysconfig/diskdump

Open the file in:

#vi /etc/sysconfig/diskdump and then add: DEVICE=/dev/hada6:/dev/hadb6 and comment out other lines.

For had*, specify the value of the partition you checked in 1-2.

* Even when the disk is expanded, this file needs to be edited.

Page 93 Page 95
Page 94
Image 94
NEC N8800-091F, EXP320A, EXP320B, N8800-090F manual Dump Initialization, Check diskdump partition Dump file creation area
Page 93 Page 95

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.