Linux查看硬件信息命令
一、查看服務(wù)器硬件信息
（1）查看服務(wù)器型號(hào)、序列號(hào)
[root@Master ~]# dmidecode|grep "System Information" -A9|egrep? "Manufacturer|Product|Serial"
（2）查看主板型號(hào)
[root@Master ~]# dmidecode |grep -A16 "System Information$"
（3）查看BIOS信息
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[root@Master ~]# dmidecode -t bios
# dmidecode 2.12
SMBIOS 2.8 present.
Handle 0x0008, DMI type 0, 24 bytes
BIOS Information
? ? ? ? Vendor: HP
? ? ? ? Version: U19
? ? ? ? Release Date: 12/27/2015
? ? ? ? Address: 0xF0000
? ? ? ? Runtime Size: 64 kB
? ? ? ? ROM Size: 16384 kB
? ? ? ? Characteristics:
? ? ? ? ? ? ? ? PCI is supported
? ? ? ? ? ? ? ? PNP is supported
? ? ? ? ? ? ? ? BIOS is upgradeable
? ? ? ? ? ? ? ? BIOS shadowing is allowed
? ? ? ? ? ? ? ? ESCD support is available
? ? ? ? ? ? ? ? Boot from CD is supported
? ? ? ? ? ? ? ? Selectable boot is supported
? ? ? ? ? ? ? ? EDD is supported
? ? ? ? ? ? ? ? 5.25"/360 kB floppy services are supported (int 13h)
? ? ? ? ? ? ? ? 5.25"/1.2 MB floppy services are supported (int 13h)
? ? ? ? ? ? ? ? 3.5"/720 kB floppy services are supported (int 13h)
? ? ? ? ? ? ? ? Print screen service is supported (int 5h)
? ? ? ? ? ? ? ? 8042 keyboard services are supported (int 9h)
? ? ? ? ? ? ? ? Serial services are supported (int 14h)
? ? ? ? ? ? ? ? Printer services are supported (int 17h)
? ? ? ? ? ? ? ? CGA/mono video services are supported (int 10h)
? ? ? ? ? ? ? ? ACPI is supported
? ? ? ? ? ? ? ? USB legacy is supported
? ? ? ? ? ? ? ? BIOS boot specification is supported
? ? ? ? ? ? ? ? Function key-initiated network boot is supported
? ? ? ? ? ? ? ? Targeted content distribution is supported
? ? ? ? ? ? ? ? UEFI is supported
? ? ? ? BIOS Revision: 2.0
? ? ? ? Firmware Revision: 2.40
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? （3）查看內(nèi)存槽及內(nèi)存條
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[root@Master ~]# dmidecode -t memory | head -45 | tail -23
Memory Device
? ? ? ? Array Handle: 0x000A
? ? ? ? Error Information Handle: Not Provided
? ? ? ? Total Width: 72 bits
? ? ? ? Data Width: 64 bits
? ? ? ? Size: 16384 MB
? ? ? ? Form Factor: DIMM
? ? ? ? Set: None
? ? ? ? Locator: PROC 1 DIMM 1
? ? ? ? Bank Locator: Not Specified
? ? ? ? Type: DDR4
? ? ? ? Type Detail: Synchronous Registered (Buffered)
? ? ? ? Speed: 2133 MHz
? ? ? ? Manufacturer: HP? ?
? ? ? ? Serial Number: Not Specified
? ? ? ? Asset Tag: Not Specified
? ? ? ? Part Number: 752369-081
? ? ? ? Rank: 2
? ? ? ? Configured Clock Speed: 2133 MHz
? ? ? ? Minimum Voltage:? 1.2 V
? ? ? ? Maximum Voltage:? 1.2 V
? ? ? ? Configured Voltage:? 1.2 V
[root@Master ~]#
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? （4）查看網(wǎng)卡信息
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[root@Master ~]# dmesg | grep -i Ethernet
igb: Intel(R) Gigabit Ethernet Network Driver - version 5.3.0-k
igb 0000:04:00.0: Intel(R) Gigabit Ethernet Network Connection
igb 0000:04:00.1: Intel(R) Gigabit Ethernet Network Connection
igb 0000:04:00.2: Intel(R) Gigabit Ethernet Network Connection
igb 0000:04:00.3: Intel(R) Gigabit Ethernet Network Connection
igb 0000:02:00.0: Intel(R) Gigabit Ethernet Network Connection
igb 0000:02:00.1: Intel(R) Gigabit Ethernet Network Connection
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（5） 查看pci信息，即主板所有硬件槽信息
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[root@Master ~]# lspci | head -10
00:00.0 Host bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 DMI2 (rev 02)
00:01.0 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 1 (rev 02)
00:01.1 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 1 (rev 02)
00:02.0 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 2 (rev 02)
00:02.1 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 2 (rev 02)
00:02.2 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 2 (rev 02)
00:02.3 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 2 (rev 02)
00:03.0 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 3 (rev 02)
00:03.1 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 3 (rev 02)
00:03.2 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 3 (rev 02)
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二、查看CPU信息
（1）查看cpu型號(hào)
[root@Master ~]# cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
? ? 40? Intel(R) Xeon(R) CPU E5-2650 v3 @ 2.30GHz
（2）查看系統(tǒng)中實(shí)際物理CPU的數(shù)量（物理）
[root@Master ~]# grep 'physical id' /proc/cpuinfo | sort | uniq | wc -l
2
（3）系統(tǒng)中實(shí)際物理CPU的數(shù)量（核數(shù)）
[root@Master ~]# cat /proc/cpuinfo |grep 'processor'|wc -l
40
（4）查看每個(gè)物理CPU中core的個(gè)數(shù)(即核數(shù))
[root@Master ~]# cat /proc/cpuinfo |grep "cores"|uniq
cpu cores? ? ? : 10
（5）查看CPU的主頻
[root@Master ~]# cat /proc/cpuinfo |grep MHz|uniq
cpu MHz? ? ? ? : 1200.000
cpu MHz? ? ? ? : 2300.000
cpu MHz? ? ? ? : 1200.000
（6）查看CPU的詳細(xì)信息
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[root@Master ~]# cat /proc/cpuinfo | head -20
processor? ? ? : 0? ? ? ? ? ? ? ? ? ? ? ? ? //邏輯處理器的ID
vendor_id? ? ? : GenuineIntel
cpu family? ? ? : 6
model? ? ? ? ? : 63
model name? ? ? : Intel(R) Xeon(R) CPU E5-2650 v3 @ 2.30GHz? //CPU型號(hào)
stepping? ? ? ? : 2
microcode? ? ? : 54
cpu MHz? ? ? ? : 1200.000
cache size? ? ? : 25600 KB
physical id? ? : 0
siblings? ? ? ? : 20? ? ? ? ? ? ? ? //相同物理封裝處理器中邏輯處理器數(shù)
core id? ? ? ? : 0
cpu cores? ? ? : 10? ? ? ? ? ? ? //相同物理封裝處理器中的內(nèi)核數(shù)
apicid? ? ? ? ? : 0
initial apicid? : 0
fpu? ? ? ? ? ? : yes
fpu_exception? : yes
cpuid level? ? : 15
wp? ? ? ? ? ? ? : yes
flags? ? ? ? ? : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase bmi1 avx2 smep bmi2 erms invpcid cqm cqm_llc cqm_occup_llc
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（7）查看CPU的相關(guān)信息
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[root@Master ~]# lscpu
Architecture:? ? ? ? ? x86_64
CPU op-mode(s):? ? ? ? 32-bit, 64-bit
Byte Order:? ? ? ? ? ? Little Endian
CPU(s):? ? ? ? ? ? ? ? 40
On-line CPU(s) list:? 0-39
Thread(s) per core:? ? 2
Core(s) per socket:? ? 10
Socket(s):? ? ? ? ? ? 2
NUMA node(s):? ? ? ? ? 2
Vendor ID:? ? ? ? ? ? GenuineIntel
CPU family:? ? ? ? ? ? 6
Model:? ? ? ? ? ? ? ? 63
Model name:? ? ? ? ? ? Intel(R) Xeon(R) CPU E5-2650 v3 @ 2.30GHz
Stepping:? ? ? ? ? ? ? 2
CPU MHz:? ? ? ? ? ? ? 1200.000
BogoMIPS:? ? ? ? ? ? ? 4594.43
Virtualization:? ? ? ? VT-x
L1d cache:? ? ? ? ? ? 32K
L1i cache:? ? ? ? ? ? 32K
L2 cache:? ? ? ? ? ? ? 256K
L3 cache:? ? ? ? ? ? ? 25600K
NUMA node0 CPU(s):? ? 0-9,20-29
NUMA node1 CPU(s):? ? 10-19,30-39
[root@Master ~]#
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（8）查看cpu運(yùn)行模式
[root@Master ~]# getconf LONG_BIT
64
（9）查看cpu是否支持64bit
[root@Master ~]#? cat /proc/cpuinfo | grep flags | grep ' lm ' | wc -l
40
(結(jié)果大于0, 說(shuō)明支持64bit計(jì)算. lm指long mode, 支持lm則是64bit)
三、查看內(nèi)存信息
（1）查看內(nèi)存硬件信息
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root@Master ~]# dmidecode -t memory | head -45 | tail -24
Handle 0x000C, DMI type 17, 40 bytes
Memory Device
? ? ? ? Array Handle: 0x000A
? ? ? ? Error Information Handle: Not Provided
? ? ? ? Total Width: 72 bits
? ? ? ? Data Width: 64 bits
? ? ? ? Size: 16384 MB
? ? ? ? Form Factor: DIMM
? ? ? ? Set: None
? ? ? ? Locator: PROC 1 DIMM 1
? ? ? ? Bank Locator: Not Specified
? ? ? ? Type: DDR4
? ? ? ? Type Detail: Synchronous Registered (Buffered)
? ? ? ? Speed: 2133 MHz
? ? ? ? Manufacturer: HP? ?
? ? ? ? Serial Number: Not Specified
? ? ? ? Asset Tag: Not Specified
? ? ? ? Part Number: 752369-081
? ? ? ? Rank: 2
? ? ? ? Configured Clock Speed: 2133 MHz
? ? ? ? Minimum Voltage:? 1.2 V
? ? ? ? Maximum Voltage:? 1.2 V
? ? ? ? Configured Voltage:? 1.2 V
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（2）最大支持多少內(nèi)存
[root@Master ~]# dmidecode|grep -P 'Maximum\s+Capacity'
（3）Linux 查看內(nèi)存的插槽數(shù),已經(jīng)使用多少插槽.每條內(nèi)存多大：
（4）Linux 查看內(nèi)存的頻率：
[root@Master ~]# dmidecode|grep -A16 "Memory Device"|grep 'Speed'
（5）Linux 查看內(nèi)存的詳細(xì)信息：
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[root@Master ~]# cat /proc/meminfo |head -20
MemTotal:? ? ? 131897620 kB
MemFree:? ? ? ? ? 414124 kB
Buffers:? ? ? ? 1040560 kB
Cached:? ? ? ? 111083180 kB
SwapCached:? ? ? ? 1320 kB
Active:? ? ? ? ? 7637912 kB
Inactive:? ? ? 110607108 kB
Active(anon):? ? 4406900 kB
Inactive(anon):? 1714900 kB
Active(file):? ? 3231012 kB
Inactive(file): 108892208 kB
Unevictable:? ? 10878976 kB
Mlocked:? ? ? ? 5521652 kB
SwapTotal:? ? ? 16777212 kB
SwapFree:? ? ? 16737536 kB
Dirty:? ? ? ? ? ? ? 180 kB
Writeback:? ? ? ? ? ? 0 kB
AnonPages:? ? ? 16999324 kB
Mapped:? ? ? ? ? 149020 kB
Shmem:? ? ? ? ? ? ? 172 kB
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（6）Linux 查看內(nèi)存的使用情況
[root@Master ~]# free -m? ? // -b,-k,-m,-g show output in bytes, KB, MB, or GB
? ? ? ? ? ? total? ? ? used? ? ? free? ? shared? ? buffers? ? cached
Mem:? ? ? ? 128806? ? 123407? ? ? 5398? ? ? ? ? 0? ? ? 1015? ? 103474
-/+ buffers/cache:? ? ? 18918? ? 109888
Swap:? ? ? ? 16383? ? ? ? 38? ? ? 16345
四、查看硬盤(pán)信息
（1）查看掛接的分區(qū)狀態(tài)
[root@Master ~]# fdisk -l |grep Disk
（2）查看硬盤(pán)和分區(qū)分布
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[root@Master ~]# lsblk
NAME? MAJ:MIN RM? SIZE RO TYPE MOUNTPOINT
sda? ? ? 8:0? ? 0 279.4G? 0 disk
├─sda1? 8:1? ? 0? ? 50M? 0 part /boot
├─sda2? 8:2? ? 0? 100G? 0 part /
├─sda3? 8:3? ? 0? ? 50G? 0 part /home
├─sda4? 8:4? ? 0? ? 1K? 0 part
├─sda5? 8:5? ? 0? ? 16G? 0 part [SWAP]
├─sda6? 8:6? ? 0? 13.3G? 0 part /tmp
└─sda7? 8:7? ? 0? 100G? 0 part /usr
sdb? ? ? 8:16? 0? 83.7T? 0 disk
└─sdb1? 8:17? 0? 83.7T? 0 part /PureDisk
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（3）查看硬盤(pán)和分區(qū)的詳細(xì)信息
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[root@Master ~]# fdisk -l? ? ? ? ?
Disk /dev/sda: 300.0 GB, 299966445568 bytes
255 heads, 63 sectors/track, 36468 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 262144 bytes / 262144 bytes
Disk identifier: 0x000384d9
? Device Boot? ? ? Start? ? ? ? End? ? ? Blocks? Id? System
/dev/sda1? *? ? ? ? ? 1? ? ? ? ? 7? ? ? 51200? 83? Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2? ? ? ? ? ? ? 7? ? ? 13061? 104857600? 83? Linux
/dev/sda3? ? ? ? ? 13061? ? ? 19588? ? 52428800? 83? Linux
/dev/sda4? ? ? ? ? 19588? ? ? 36469? 135597056? ? 5? Extended
/dev/sda5? ? ? ? ? 19588? ? ? 21677? ? 16777216? 82? Linux swap / Solaris
/dev/sda6? ? ? ? ? 21677? ? ? 23415? ? 13962240? 83? Linux
/dev/sda7? ? ? ? ? 23416? ? ? 36469? 104854528? 83? Linux
WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdb: 92017.3 GB, 92017310654464 bytes
255 heads, 63 sectors/track, 11187134 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 262144 bytes / 6029312 bytes
Disk identifier: 0x00000000
? Device Boot? ? ? Start? ? ? ? End? ? ? Blocks? Id? System
/dev/sdb1? ? ? ? ? ? ? 1? ? ? 267350? 2147483647+? ee? GPT
Partition 1 does not start on physical sector boundary.
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（4）查看掛接的分區(qū)狀態(tài)
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[root@Master ~]# mount | column -t
/dev/sda2? on? /? ? ? ? ? ? ? ? ? ? ? ? type? ext4? ? ? ? (rw)
proc? ? ? on? /proc? ? ? ? ? ? ? ? ? ? type? proc? ? ? ? (rw)
sysfs? ? ? on? /sys? ? ? ? ? ? ? ? ? ? ? type? sysfs? ? ? ? (rw)
devpts? ? on? /dev/pts? ? ? ? ? ? ? ? ? type? devpts? ? ? (rw,gid=5,mode=620)
tmpfs? ? ? on? /dev/shm? ? ? ? ? ? ? ? ? type? tmpfs? ? ? ? (rw)
/dev/sda1? on? /boot? ? ? ? ? ? ? ? ? ? type? ext4? ? ? ? (rw)
/dev/sda3? on? /home? ? ? ? ? ? ? ? ? ? type? ext4? ? ? ? (rw)
/dev/sda6? on? /tmp? ? ? ? ? ? ? ? ? ? ? type? ext4? ? ? ? (rw)
/dev/sda7? on? /usr? ? ? ? ? ? ? ? ? ? ? type? ext4? ? ? ? (rw)
/dev/sdb1? on? /PureDisk? ? ? ? ? ? ? ? type? ext4? ? ? ? (rw)
none? ? ? on? /proc/sys/fs/binfmt_misc? type? binfmt_misc? (rw
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（5）查看掛接的分區(qū)狀態(tài)
[root@Master ~]# swapon -s?
Filename? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Type? ? ? ? ? ? Size? ? Used? ? Priority
/dev/sda5? ? ? ? ? ? ? ? ? ? ? ? ? ? ? partition? ? ? 16777212? ? ? ? 39676? -1
（6）查看硬盤(pán)使用情況
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[root@Master ~]# df -hT
Filesystem? ? Type? Size? Used Avail Use% Mounted on
/dev/sda2? ? ? ext4? ? 99G? 561M? 93G? 1% /
tmpfs? ? ? ? ? tmpfs? 63G? 76K? 63G? 1% /dev/shm
/dev/sda1? ? ? ext4? ? 45M? 38M? 4.9M? 89% /boot
/dev/sda3? ? ? ext4? ? 50G? 52M? 47G? 1% /home
/dev/sda6? ? ? ext4? ? 13G? 34M? 13G? 1% /tmp
/dev/sda7? ? ? ext4? ? 99G? 21G? 73G? 23% /usr
/dev/sdb1? ? ? ext4? ? 84T? 41T? 40T? 51% /PureDisk
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（7） 硬盤(pán)檢測(cè)命令smartctl
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[root@Master ~]# smartctl -a /dev/sda
smartctl 5.43 2012-06-30 r3573 [x86_64-linux-2.6.32-642.el6.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net
Vendor:? ? ? ? ? ? ? HP? ? ?
Product:? ? ? ? ? ? ? LOGICAL VOLUME?
Revision:? ? ? ? ? ? 3.56
User Capacity:? ? ? ? 299,966,445,568 bytes [299 GB]
Logical block size:? 512 bytes
Logical Unit id:? ? ? 0x600508b1001cc8a1b9ec4dacc5ab35dc
Serial number:? ? ? ? PDNNK0BRH9U0AG?
Device type:? ? ? ? ? disk
Local Time is:? ? ? ? Mon Feb? 5 13:13:33 2018 CST
Device supports SMART and is Enabled
Temperature Warning Disabled or Not Supported
SMART Health Status: OK
Error Counter logging not supported
Device does not support Self Test logging
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五、查看網(wǎng)卡信息
（1)查看網(wǎng)卡硬件信息
[root@Master ~]#? lspci | grep -i 'eth'
? (2)查看系統(tǒng)的所有網(wǎng)絡(luò)接口
[root@Master ~]# ifconfig -a
[root@Master ~]# ip link show
? ? (3)查看某個(gè)網(wǎng)絡(luò)接口的詳細(xì)信息，例如eth0的詳細(xì)參數(shù)和指標(biāo)
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[root@Master ~]# ethtool eth0
Settings for eth0:
? ? ? ? Supported ports: [ FIBRE ]
? ? ? ? Supported link modes:? 10000baseT/Full
? ? ? ? Supported pause frame use: No
? ? ? ? Supports auto-negotiation: No
? ? ? ? Advertised link modes:? 10000baseT/Full
? ? ? ? Advertised pause frame use: No
? ? ? ? Advertised auto-negotiation: No
? ? ? ? Speed: 10000Mb/s
? ? ? ? Duplex: Full
? ? ? ? Port: FIBRE
? ? ? ? PHYAD: 0
? ? ? ? Transceiver: external
? ? ? ? Auto-negotiation: off
? ? ? ? Supports Wake-on: d
? ? ? ? Wake-on: d
? ? ? ? Current message level: 0x00000007 (7)
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? drv probe link
? ? ? ? Link detected: yes
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? ? (4)查看所有網(wǎng)卡的鏈路狀態(tài)
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[root@Master ~]# for i in `seq 0 9`;do ethtool eth${i} | egrep 'eth|Link';done
Settings for eth0:
? ? ? ? Link detected: yes?
Settings for eth1:
? ? ? ? Link detected: yes
Settings for eth2:
? ? ? ? Link detected: no
Settings for eth3:
? ? ? ? Link detected: no
Settings for eth4:
? ? ? ? Link detected: no
Settings for eth5:
? ? ? ? Link detected: no
Settings for eth6:
? ? ? ? Link detected: no
Settings for eth7:
? ? ? ? Link detected: no
Settings for eth8:
? ? ? ? Link detected: no
Settings for eth9:
? ? ? ? Link detected: no
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六、列出所有PCI設(shè)備信息
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[root@Master ~]# lspci -tv | more
-+-[0000:ff]-+-08.0? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 QPI Link 0
|? ? ? ? ? +-08.3? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 QPI Link 0
|? ? ? ? ? +-09.0? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 QPI Link 1
|? ? ? ? ? +-09.3? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 QPI Link 1
|? ? ? ? ? +-0b.0? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 R3 QPI Link 0 & 1 Monitoring
|? ? ? ? ? +-0b.1? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 R3 QPI Link 0 & 1 Monitoring
|? ? ? ? ? +-0b.2? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 R3 QPI Link 0 & 1 Monitoring
|? ? ? ? ? +-0c.0? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
|? ? ? ? ? +-0c.1? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
|? ? ? ? ? +-0c.2? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
|? ? ? ? ? +-0c.3? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
|? ? ? ? ? +-0c.4? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
|? ? ? ? ? +-0c.5? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
|? ? ? ? ? +-0c.6? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
|? ? ? ? ? +-0c.7? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
|? ? ? ? ? +-0d.0? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
|? ? ? ? ? +-0d.1? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
|? ? ? ? ? +-0f.0? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Buffered Ring Agent
|? ? ? ? ? +-0f.1? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Buffered Ring Agent
|? ? ? ? ? +-0f.2? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Buffered Ring Agent
|? ? ? ? ? +-0f.3? Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Buffered Ring Agent
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1.cpu
查看CPU信息
# 總核數(shù) = 物理CPU個(gè)數(shù) X 每顆物理CPU的核數(shù)
# 總邏輯CPU數(shù) = 物理CPU個(gè)數(shù) X 每顆物理CPU的核數(shù) X 超線程數(shù)
# 查看物理CPU個(gè)數(shù)
cat /proc/cpuinfo| grep "physical id"| sort| uniq| wc -l
# 查看每個(gè)物理CPU中core的個(gè)數(shù)(即核數(shù))
cat /proc/cpuinfo| grep "cpu cores"| uniq
# 查看邏輯CPU的個(gè)數(shù)
cat /proc/cpuinfo| grep "processor"| wc -l
# 查看CPU信息（型號(hào)）
cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
#lscpu命令，查看的是cpu的統(tǒng)計(jì)信息.（部分舊版本不支持）
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Disk /dev/sda: 64.4 GB, 64424509440 bytes
255 heads, 63 sectors/track, 7832 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0000859f
? Device Boot? ? ? Start? ? ? ? End? ? ? Blocks? Id? System
/dev/sda1? *? ? ? ? ? 1? ? ? ? ? 64? ? ? 512000? 83? Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2? ? ? ? ? ? ? 64? ? ? ? 7833? ? 62401536? 8e? Linux LVM
Disk /dev/mapper/vg_qdy-lv_root: 53.7 GB, 53687091200 bytes
255 heads, 63 sectors/track, 6527 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
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使用#cat? /proc/cpuinfo ,可以知道每個(gè)cpu信息，如每個(gè)CPU的型號(hào)，主頻等。
2.內(nèi)存
#free -m # 查看內(nèi)存使用量和交換區(qū)使用量?
? total? ? ? used? ? ? free? ? shared? ? buffers? ? cached
Mem:? ? ? ? ? 3690? ? ? ? 288? ? ? 3401? ? ? ? ? 0? ? ? ? 15? ? ? ? 119
-/+ buffers/cache:? ? ? ? 153? ? ? 3536
Swap:? ? ? ? 3951? ? ? ? ? 0? ? ? 3951
# cat /proc/meminfo
#dmidecode -t memory 查看內(nèi)存硬件信息
grep MemTotal /proc/meminfo# 查看內(nèi)存總量
grep MemFree /proc/meminfo # 查看空閑內(nèi)存量
lsmod # 列出加載的內(nèi)核模塊
3.磁盤(pán)
# lsblk 查看硬盤(pán)與分區(qū)分而
#df -h? ? # 查看各分區(qū)使用情況
#du -sh # 查看指定目錄的大小
Filesystem? ? ? ? ? ? ? ? ? Size? Used Avail Use% Mounted on
/dev/mapper/vg_qdy-lv_root? 50G? 3.7G? 44G? 8% /
tmpfs? ? ? ? ? ? ? ? ? ? ? 1.9G? ? 0? 1.9G? 0% /dev/shm
/dev/sda1? ? ? ? ? ? ? ? ? 485M? 39M? 421M? 9% /boot
/dev/mapper/vg_qdy-lv_home? 5.6G? 239M? 5.1G? 5% /home
#fdisk -l # 查看所有分區(qū)詳細(xì)信息
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Disk /dev/sda: 64.4 GB, 64424509440 bytes
255 heads, 63 sectors/track, 7832 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0000859f
? Device Boot? ? ? Start? ? ? ? End? ? ? Blocks? Id? System
/dev/sda1? *? ? ? ? ? 1? ? ? ? ? 64? ? ? 512000? 83? Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2? ? ? ? ? ? ? 64? ? ? ? 7833? ? 62401536? 8e? Linux LVM
Disk /dev/mapper/vg_qdy-lv_root: 53.7 GB, 53687091200 bytes
255 heads, 63 sectors/track, 6527 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
...... 下方省略！
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4.網(wǎng)卡信息
# lspci | grep -i 'eth'? 查看網(wǎng)卡硬件信息
# ifconfig -a 查看系統(tǒng)所有網(wǎng)絡(luò)接口
或 #ip link show
# ethtool eth0 查看某個(gè)網(wǎng)絡(luò)接口的詳細(xì)信息
5.主板所有硬件槽PCI信息。
#lspci
更詳細(xì)的lspci -v 或者 lspci -vv
#lscpi -t 設(shè)備樹(shù)
6.查看bios 信息
# dmidecode -t bios
7. 查看系統(tǒng)運(yùn)行時(shí)間、用戶數(shù)、負(fù)載
#uptime
#cat /proc/loadavg # 查看系統(tǒng)負(fù)載磁盤(pán)和分區(qū)
8. 查看掛接的分區(qū)狀態(tài)
#mount | column -t
9. 查看系統(tǒng)負(fù)載 磁盤(pán)和分區(qū)
# cat /proc/loadavg
10.查看所有安裝的軟件包
#rpm -qa
11. 查看所有進(jìn)程
# ps -ef
12. 查看所有監(jiān)聽(tīng)端口
#netstat -lntp
13.查用戶與組信息
#cut -d: -f1 /etc/passwd # 查看系統(tǒng)所有用戶 cat /etc/passwd |more 顯示長(zhǎng)系統(tǒng)用戶并分頁(yè)
#cut -d: -f1 /etc/group # 查看系統(tǒng)所有組? cat /etc/group|more 顯示長(zhǎng)系統(tǒng)所有組并分頁(yè)
14其它不常用查看信息命令
swapon -s # 查看所有交換分區(qū)
iptables -L # 查看防火墻設(shè)置
hdparm -i /dev/hda # 查看磁盤(pán)參數(shù)(僅適用于IDE設(shè)備)
dmesg | grep IDE # 查看啟動(dòng)時(shí)IDE設(shè)備檢測(cè)狀況網(wǎng)絡(luò)
crontab -l # 查看當(dāng)前用戶的計(jì)劃任務(wù) 服務(wù)
chkconfig –list # 列出所有系統(tǒng)服務(wù)#
chkconfig –list | grep on # 列出所有啟動(dòng)的系統(tǒng)服務(wù) 程序
