dmidecode 这款软件允许你在 Linux 系统下获取有关硬件方面的信息。Dmidecode 遵循 SMBIOS/DMI 标准，其输出的信息包括 BIOS、系统、主板、处理器、内存、缓存等。

生产环境：

操作系统：CentOS6

Dmidecode命令能帮助我们了解服务器硬件信息，具体用法我们不详讲，可以通过man命令获取帮助。

[root@sky9896 sky]# man dmidecode

[sky@sky9896 ~]$ dmidecode

# dmidecode 2.12

/dev/mem: Permission denied  

#登录root才有权限使用dmidecode   

[sky@sky9896 ~]$ su

密码：

[root@sky9896 sky]#

[root@sky9896sky]# yum install demidecode –y

#可以通过以上命令安装或升级demidecode                 

 [root@sky9896sky]# dmidecode --type baseboard   #获取主板信息

# dmidecode2.12

SMBIOS 2.5present.

 Handle0x0002, DMI type 2, 15 bytes

Base BoardInformation

        Manufacturer: LENOVO

        Product Name: LENOVO

        Version: To be filled by O.E.M.

        Serial Number: SS09294619

        Asset Tag: To Be Filled By O.E.M.

        Features:

                Board is a hosting board

                Board is replaceable

        Location In Chassis: To Be Filled ByO.E.M.

        Chassis Handle: 0x0003

        Type: Motherboard

        Contained Object Handles: 0

 [root@sky9896 sky]# dmidecode --ty processor    #获取CPU信息

# dmidecode 2.12

SMBIOS 2.5 present.

 

Handle 0x0004, DMI type 4, 40 bytes

Processor Information

        Socket Designation:CPU 1

        Type: CentralProcessor

        Family: Other

        Manufacturer: Intel           

        ID: 76 06 01 00 FF FBEB BF

        Version: Pentium(R)Dual-Core  CPU      E5200 @ 2.50GHz    

        Voltage: 1.2 V

        External Clock: 200MHz

        Max Speed: 2500 MHz

        Current Speed: 2500MHz

        Status: Populated,Enabled

        Upgrade: Other

        L1 Cache Handle:0x0005

        L2 Cache Handle:0x0006

        L3 Cache Handle:0x0007

        Serial Number: To BeFilled By O.E.M.

        Asset Tag: To BeFilled By O.E.M.

        Part Number: To BeFilled By O.E.M.

        Core Count: 2

        Core Enabled: 2

        Thread Count: 2

        Characteristics:

                64-bit capable

[root@sky9896 sky]# dmidecode --ty memory   #获取内存信息

# dmidecode 2.12

SMBIOS 2.5 present.

 

Handle 0x000A, DMI type 16, 15 bytes

Physical Memory Array

        Location: System BoardOr Motherboard

        Use: System Memory

        Error Correction Type:None

        Maximum Capacity: 4 GB

        Error InformationHandle: Not Provided

        Number Of Devices: 2

 Handle 0x000C, DMI type 17, 27 bytes

Memory Device

        Array Handle: 0x000A

        Error InformationHandle: Not Provided

        Total Width: 64 bits

        Data Width: 64 bits

        Size: 2048 MB

        Form Factor: DIMM

        Set: None

        Locator: DIMM0

        Bank Locator: BANK0

        Type: DDR2

        Type Detail:Synchronous

        Speed: 800 MHz

        Manufacturer: Manufacturer00

        Serial Number:SerNum00

        Asset Tag:AssetTagNum0

        Part Number:ModulePartNumber00

 Handle 0x000E, DMI type 17, 27 bytes

Memory Device

        Array Handle: 0x000A

        Error InformationHandle: Not Provided

        Total Width: Unknown

        Data Width: Unknown

        Size: No ModuleInstalled

        Form Factor: DIMM

        Set: None

        Locator: DIMM1

        Bank Locator: BANK1

        Type: Unknown

        Type Detail: Unknown

        Speed: Unknown

        Manufacturer:Manufacturer01

        Serial Number:SerNum01

        Asset Tag:AssetTagNum1

        Part Number:ModulePartNumber01