Linux查看硬件信息

1. 最简单的的显示全部dmi信息：
 # dmidecode
这样将输出所有的dmi信息，你可能会被一大堆的信息吓坏，通常可以使用下面的方法。

2.更精简的信息显示：
# dmidecode -q
-q(--quite) 只显示必要的信息，这个很管用哦。

3.显示指定类型的信息：
通常我只想查看某类型，比如CPU，内存或者磁盘的信息而不是全部的。这可以使用-t(--type TYPE)来指定信息类型：
# dmidecode -t bios
# dmidecode -t bios, processor (这种方式好像不可以用，必须用下面的数字的方式)
# dmidecode -t 0,4  (显示bios和processor)

服务器到底能扩展到多大的内存？

[root@TJSJHL218-154 setup]# dmidecode -t 16
# dmidecode 2.9
SMBIOS 2.5 present.

Handle 0x1000, DMI type 16, 15 bytes
Physical Memory Array
 Location: System Board Or Motherboard
 Use: System Memory
 Error Correction Type: Multi-bit ECC
 Maximum Capacity: 65280 MB
 Error Information Handle: Not Provided
 Number Of Devices: 8

查看主机型号和CPU型号:

[root@~dmidecode -s system-product-name
PowerEdge 1950
[root@~]# dmidecode -s processor-version
Intel(R) Xeon(R) CPU           E5405  @ 2.00GHz
Intel(R) Xeon(R) CPU           E5405  @ 2.00GHz

 比如要查看主板的详细信息:                          
[root@TJSJHL218-154 setup]# dmidecode -t baseboard
# dmidecode 2.9
SMBIOS 2.5 present.

Handle 0x0200, DMI type 2, 9 bytes
Base Board Information
 Manufacturer: Dell Inc.
 Product Name: 0K649H
 Version: A00
 Serial Number: ..CN697028790626.

Handle 0x0A00, DMI type 10, 10 bytes
On Board Device 1 Information
 Type: Video
 Status: Enabled
 Description: Embedded ATI ES1000 Video
On Board Device 2 Information
 Type: Ethernet
 Status: Enabled
 Description: Embedded Broadcom 5708 NIC 1
On Board Device 3 Information
 Type: Ethernet
 Status: Enabled
 Description: Embedded Broadcom 5708 NIC 2

 

[root@TJSJHL218-154 setup]# dmidecode -t 2
# dmidecode 2.9
SMBIOS 2.5 present.

Handle 0x0200, DMI type 2, 9 bytes
Base Board Information
 Manufacturer: Dell Inc.
 Product Name: 0K649H
 Version: A00
 Serial Number: ..CN697028790626.

dmidecode支持的数字参数：
Type   Information
----------------------------------------
0   BIOS
1   System
2   Base Board
3   Chassis
4   Processor
5   Memory Controller
6   Memory Module
7   Cache
8   Port Connector
9   System Slots
10   On Board Devices
11   OEM Strings
12   System Configuration Options
13   BIOS Language
14   Group Associations
15   System Event Log
16   Physical Memory Array
17   Memory Device
18   32-bit Memory Error
19   Memory Array Mapped Address
20   Memory Device Mapped Address
21   Built-in Pointing Device
22   Portable Battery
23   System Reset
24   Hardware Security
25   System Power Controls
26   Voltage Probe
27   Cooling Device
28   Temperature Probe
29   Electrical Current Probe
30   Out-of-band Remote Access
31   Boot Integrity Services
32   System Boot
33   64-bit Memory Error
34   Management Device
35   Management Device Component
36   Management Device Threshold Data
37   Memory Channel
38   IPMI Device
39   Power Supply