linux 下檢視主機板 CPU 記憶體 硬碟等資訊

1. 檢視主機板資訊：

dmidecode |grep -a16 "system information$"

cpu總核數 = 物理cpu個數 * 每顆物理cpu的核數 

總邏輯cpu數 = 物理cpu個數 * 每顆物理cpu的核數 * 超執行緒數

檢視cpu資訊（型號）

[root@esggy-clu-n003 ~]# cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
24  intel(r) xeon(r) cpu e5-2620 v2 @ 2.10ghz
# 檢視物理cpu個數
[root@esggy-clu-n003 ~]# cat /proc/cpuinfo| grep "physical id"| sort| uniq| wc -l
2# 檢視每個物理cpu中core的個數(即核數)
[root@esggy-clu-n003 ~]# cat /proc/cpuinfo| grep "cpu cores"| uniq
cpu cores       : 6
# 檢視邏輯cpu的個數
[root@esggy-clu-n003 ~]# cat /proc/cpuinfo| grep "processor"| wc -l
24

檢視伺服器型號、序列號：

[root@esggy-clu-n003 ~]# dmidecode|grep "system information" -a9|egrep  "manufacturer|product|serial"  
manufacturer: dell inc.
product name: poweredge r720
serial number: 9nlh422
linux 檢視記憶體的插槽數,已經使用多少插槽.每條記憶體多大：
[root@esggy-clu-n003 ~]# dmidecode|grep -a5 "memory device"|grep size|grep -v range
size: 16384 mb
size: 16384 mb
size: 16384 mb
size: 16384 mb
size: no module installed
size: no module installed
size: no module installed
size: no module installed
size: no module installed
size: no module installed
size: no module installed
size: no module installed
size: 16384 mb
size: 16384 mb
size: 16384 mb
size: 16384 mb
size: no module installed
size: no module installed
size: no module installed
size: no module installed
size: no module installed
size: no module installed
size: no module installed
size: no module installed
linux 檢視記憶體的頻率：
[root@esggy-clu-n003 ~]# dmidecode|grep -a16 "memory device"|grep 'speed'
speed: 1600 mhz
speed: 1600 mhz
speed: 1600 mhz
speed: 1600 mhz
speed: unknown
speed: unknown
speed: unknown
speed: unknown
speed: unknown
speed: unknown
speed: unknown
speed: unknown
speed: 1600 mhz
speed: 1600 mhz
speed: 1600 mhz
speed: 1600 mhz
speed: unknown
speed: unknown
speed: unknown
speed: unknown
speed: unknown
speed: unknown
speed: unknown
speed: unknown
在linux檢視記憶體型號的命令：
dmidecode -t memory
檢視主機板型號：
dmidecode |grep -a16 "system information$"
記憶體槽及記憶體條：
dmidecode |grep -a16 "memory device$"
硬碟：fdisk -l
smartctl -a /dev/sda
網絡卡：mii-tool

[root@esggy-clu-n003 ~]# fdisk -l | grep "disk /dev/sd"

disk /dev/sdb: 1999.8 gb, 1999844147200 bytes
disk /dev/sdc: 1999.8 gb, 1999844147200 bytes
disk /dev/sda: 1999.8 gb, 1999844147200 bytes
disk /dev/sde: 1999.8 gb, 1999844147200 bytes
disk /dev/sdf: 1999.8 gb, 1999844147200 bytes
disk /dev/sdg: 1999.8 gb, 1999844147200 bytes
disk /dev/sdd: 1999.8 gb, 1999844147200 bytes
[root@esggy-clu-n003 ~]# fdisk -l | grep 1999.8 | wc -l
7

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