一、查看服务器硬件信息

（1）查看服务器型号、序列号

[root@Master ~]# dmidecode|grep "System Information" -A9|egrep  "Manufacturer|Product|Serial"

（2）查看主板型号
[root@Master ~]# dmidecode |grep -A16 "System Information$"

（3）查看BIOS信息

  1. [root@Master ~]# dmidecode -t bios
  2. # dmidecode 2.12
  3. SMBIOS 2.8 present.
  4.  
  5. Handle 0x0008, DMI type ,  bytes
  6. BIOS Information
  7.         Vendor: HP
  8.         Version: U19
  9.         Release Date: //
  10.         Address: 0xF0000
  11.         Runtime Size:  kB
  12.         ROM Size:  kB
  13.         Characteristics:
  14.                 PCI is supported
  15.                 PNP is supported
  16.                 BIOS is upgradeable
  17.                 BIOS shadowing is allowed
  18.                 ESCD support is available
  19.                 Boot from CD is supported
  20.                 Selectable boot is supported
  21.                 EDD is supported
  22.                 5.25"/360 kB floppy services are supported (int 13h)
  23.                 5.25"/1.2 MB floppy services are supported (int 13h)
  24.                 3.5"/720 kB floppy services are supported (int 13h)
  25.                 Print screen service is supported (int 5h)
  26.                  keyboard services are supported (int 9h)
  27.                 Serial services are supported (int 14h)
  28.                 Printer services are supported (int 17h)
  29.                 CGA/mono video services are supported (int 10h)
  30.                 ACPI is supported
  31.                 USB legacy is supported
  32.                 BIOS boot specification is supported
  33.                 Function key-initiated network boot is supported
  34.                 Targeted content distribution is supported
  35.                 UEFI is supported
  36.         BIOS Revision: 2.0
  37.         Firmware Revision: 2.40

（3）查看内存槽及内存条

  1. [root@Master ~]# dmidecode -t memory | head - | tail -
  2. Memory Device
  3.         Array Handle: 0x000A
  4.         Error Information Handle: Not Provided
  5.         Total Width:  bits
  6.         Data Width:  bits
  7.         Size:  MB
  8.         Form Factor: DIMM
  9.         Set: None
  10.         Locator: PROC  DIMM
  11.         Bank Locator: Not Specified
  12.         Type: DDR4
  13.         Type Detail: Synchronous Registered (Buffered)
  14.         Speed:  MHz
  15.         Manufacturer: HP
  16.         Serial Number: Not Specified
  17.         Asset Tag: Not Specified
  18.         Part Number: -
  19.         Rank:
  20.         Configured Clock Speed:  MHz
  21.         Minimum Voltage:  1.2 V
  22.         Maximum Voltage:  1.2 V
  23.         Configured Voltage:  1.2 V
  24.  
  25. [root@Master ~]#

（4）查看网卡信息

  1. [root@Master ~]# dmesg | grep -i Ethernet
  2. igb: Intel(R) Gigabit Ethernet Network Driver - version 5.3.-k
  3. igb ::00.0: Intel(R) Gigabit Ethernet Network Connection
  4. igb ::00.1: Intel(R) Gigabit Ethernet Network Connection
  5. igb ::00.2: Intel(R) Gigabit Ethernet Network Connection
  6. igb ::00.3: Intel(R) Gigabit Ethernet Network Connection
  7. igb ::00.0: Intel(R) Gigabit Ethernet Network Connection
  8. igb ::00.1: Intel(R) Gigabit Ethernet Network Connection

（5） 查看pci信息，即主板所有硬件槽信息

  1. [root@Master ~]# lspci | head -
  2. :00.0 Host bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 DMI2 (rev )
  3. :01.0 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port  (rev )
  4. :01.1 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port  (rev )
  5. :02.0 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port  (rev )
  6. :02.1 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port  (rev )
  7. :02.2 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port  (rev )
  8. :02.3 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port  (rev )
  9. :03.0 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port  (rev )
  10. :03.1 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port  (rev )
  11. :03.2 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port  (rev )

二、查看CPU信息

（1）查看cpu型号

  1. [root@Master ~]# cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
  2.        Intel(R) Xeon(R) CPU E5- v3 @ .30GHz

（2）查看系统中实际物理CPU的数量（物理）

  1. [root@Master ~]# grep 'physical id' /proc/cpuinfo | sort | uniq | wc -l

（3）系统中实际物理CPU的数量（核数）

  1. [root@Master ~]# cat /proc/cpuinfo |grep 'processor'|wc -l

（4）查看每个物理CPU中core的个数(即核数)

  1. [root@Master ~]# cat /proc/cpuinfo |grep "cores"|uniq
  2. cpu cores       :

（5）查看CPU的主频

  1. [root@Master ~]# cat /proc/cpuinfo |grep MHz|uniq
  2. cpu MHz         : 1200.000
  3. cpu MHz         : 2300.000
  4. cpu MHz         : 1200.000

（6）查看CPU的详细信息

  1. [root@Master ~]# cat /proc/cpuinfo | head -
  2. processor       : 0                           //逻辑处理器的ID
  3. vendor_id       : GenuineIntel
  4. cpu family      :
  5. model           :
  6. model name      : Intel(R) Xeon(R) CPU E5- v3 @ .30GHz   //CPU型号
  7. stepping        :
  8. microcode       :
  9. cpu MHz         : 1200.000
  10. cache size      :  KB
  11. physical id     :
  12. siblings        : 20                //相同物理封装处理器中逻辑处理器数
  13. core id         :
  14. cpu cores       : 10               //相同物理封装处理器中的内核数
  15. apicid          :
  16. initial apicid  :
  17. fpu             : yes
  18. fpu_exception   : yes
  19. cpuid level     :
  20. wp              : yes
  21. 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

（7）查看CPU的相关信息

  1. [root@Master ~]# lscpu
  2. Architecture:          x86_64
  3. CPU op-mode(s):        -bit, -bit
  4. Byte Order:            Little Endian
  5. CPU(s):
  6. On-line CPU(s) list:   -
  7. Thread(s) per core:
  8. Core(s) per socket:
  9. Socket(s):
  10. NUMA node(s):
  11. Vendor ID:             GenuineIntel
  12. CPU family:
  13. Model:
  14. Model name:            Intel(R) Xeon(R) CPU E5- v3 @ .30GHz
  15. Stepping:
  16. CPU MHz:               1200.000
  17. BogoMIPS:              4594.43
  18. Virtualization:        VT-x
  19. L1d cache:             32K
  20. L1i cache:             32K
  21. L2 cache:              256K
  22. L3 cache:              25600K
  23. NUMA node0 CPU(s):     -,-
  24. NUMA node1 CPU(s):     -,-
  25. [root@Master ~]#

（8）查看cpu运行模式

  1. [root@Master ~]# getconf LONG_BIT

（9）查看cpu是否支持64bit

  1. [root@Master ~]#  cat /proc/cpuinfo | grep flags | grep ' lm ' | wc -l
  2.  
  3. (结果大于0, 说明支持64bit计算. lm指long mode, 支持lm则是64bit)

三、查看内存信息
（1）查看内存硬件信息

  1. root@Master ~]# dmidecode -t memory | head - | tail -
  2. Handle 0x000C, DMI type ,  bytes
  3. Memory Device
  4.         Array Handle: 0x000A
  5.         Error Information Handle: Not Provided
  6.         Total Width:  bits
  7.         Data Width:  bits
  8.         Size:  MB
  9.         Form Factor: DIMM
  10.         Set: None
  11.         Locator: PROC  DIMM
  12.         Bank Locator: Not Specified
  13.         Type: DDR4
  14.         Type Detail: Synchronous Registered (Buffered)
  15.         Speed:  MHz
  16.         Manufacturer: HP
  17.         Serial Number: Not Specified
  18.         Asset Tag: Not Specified
  19.         Part Number: -
  20.         Rank:
  21.         Configured Clock Speed:  MHz
  22.         Minimum Voltage:  1.2 V
  23.         Maximum Voltage:  1.2 V
  24.         Configured Voltage:  1.2 V

（2）最大支持多少内存
[root@Master ~]# dmidecode|grep -P 'Maximum\s+Capacity'

（3）Linux 查看内存的插槽数,已经使用多少插槽.每条内存多大：

（4）Linux 查看内存的频率：
[root@Master ~]# dmidecode|grep -A16 "Memory Device"|grep 'Speed'

（5）Linux 查看内存的详细信息：

  1. [root@Master ~]# cat /proc/meminfo |head -
  2. MemTotal:        kB
  3. MemFree:           kB
  4. Buffers:          kB
  5. Cached:          kB
  6. SwapCached:          kB
  7. Active:           kB
  8. Inactive:        kB
  9. Active(anon):     kB
  10. Inactive(anon):   kB
  11. Active(file):     kB
  12. Inactive(file):  kB
  13. Unevictable:     kB
  14. Mlocked:          kB
  15. SwapTotal:       kB
  16. SwapFree:        kB
  17. Dirty:                kB
  18. Writeback:              kB
  19. AnonPages:       kB
  20. Mapped:            kB
  21. Shmem:                kB

（6）Linux 查看内存的使用情况

  1. [root@Master ~]# free -m    // -b,-k,-m,-g show output in bytes, KB, MB, or GB
  2.              total       used       free     shared    buffers     cached
  3. Mem:
  4. -/+ buffers/cache:
  5. Swap:

四、查看硬盘信息
（1）查看挂接的分区状态
[root@Master ~]# fdisk -l |grep Disk

（2）查看硬盘和分区分布

  1. [root@Master ~]# lsblk
  2. NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
  3. sda      :     .4G   disk
  4. ├─sda1   :        50M   part /boot
  5. ├─sda2   :       100G   part /
  6. ├─sda3   :        50G   part /home
  7. ├─sda4   :         1K   part
  8. ├─sda5   :        16G   part [SWAP]
  9. ├─sda6   :      .3G   part /tmp
  10. └─sda7   :       100G   part /usr
  11. sdb      :     .7T   disk
  12. └─sdb1   :     .7T   part /PureDisk

（3）查看硬盘和分区的详细信息

  1. [root@Master ~]# fdisk -l           
  2.  
  3. Disk /dev/sda: 300.0 GB,  bytes
  4.  heads,  sectors/track,  cylinders
  5. Units = cylinders of  *  =  bytes
  6. Sector size (logical/physical):  bytes /  bytes
  7. I/O size (minimum/optimal):  bytes /  bytes
  8. Disk identifier: 0x000384d9
  9.  
  10.    Device Boot      Start         End      Blocks   Id  System
  11. /dev/sda1   *                                  Linux
  12. Partition  does not end on cylinder boundary.
  13. /dev/sda2                              Linux
  14. /dev/sda3                           Linux
  15. /dev/sda4                           Extended
  16. /dev/sda5                           Linux swap / Solaris
  17. /dev/sda6                           Linux
  18. /dev/sda7                          Linux
  19.  
  20. WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.
  21.  
  22. Disk /dev/sdb: 92017.3 GB,  bytes
  23.  heads,  sectors/track,  cylinders
  24. Units = cylinders of  *  =  bytes
  25. Sector size (logical/physical):  bytes /  bytes
  26. I/O size (minimum/optimal):  bytes /  bytes
  27. Disk identifier: 0x00000000
  28.  
  29.    Device Boot      Start         End      Blocks   Id  System
  30. /dev/sdb1                       +  ee  GPT
  31. Partition  does not start on physical sector boundary.

（4）查看挂接的分区状态

  1. [root@Master ~]# mount | column -t
  2. /dev/sda2  on  /                         type  ext4         (rw)
  3. proc       on  /proc                     type  proc         (rw)
  4. sysfs      on  /sys                      type  sysfs        (rw)
  5. devpts     on  /dev/pts                  type  devpts       (rw,gid=,mode=)
  6. tmpfs      on  /dev/shm                  type  tmpfs        (rw)
  7. /dev/sda1  on  /boot                     type  ext4         (rw)
  8. /dev/sda3  on  /home                     type  ext4         (rw)
  9. /dev/sda6  on  /tmp                      type  ext4         (rw)
  10. /dev/sda7  on  /usr                      type  ext4         (rw)
  11. /dev/sdb1  on  /PureDisk                 type  ext4         (rw)
  12. none       on  /proc/sys/fs/binfmt_misc  type  binfmt_misc  (rw

（5）查看挂接的分区状态

  1. [root@Master ~]# swapon -s
  2. Filename                                Type            Size    Used    Priority
  3. /dev/sda5                               partition                  -

（6）查看硬盘使用情况

  1. [root@Master ~]# df -hT
  2. Filesystem     Type   Size  Used Avail Use% Mounted on
  3. /dev/sda2      ext4    99G  561M   93G   % /
  4. tmpfs          tmpfs   63G   76K   63G   % /dev/shm
  5. /dev/sda1      ext4    45M   38M  4.9M  % /boot
  6. /dev/sda3      ext4    50G   52M   47G   % /home
  7. /dev/sda6      ext4    13G   34M   13G   % /tmp
  8. /dev/sda7      ext4    99G   21G   73G  % /usr
  9. /dev/sdb1      ext4    84T   41T   40T  % /PureDisk

（7） 硬盘检测命令smartctl

  1. [root@Master ~]# smartctl -a /dev/sda
  2. smartctl 5.43 -- r3573 [x86_64-linux-2.6.-.el6.x86_64] (local build)
  3. Copyright (C) - by Bruce Allen, http://smartmontools.sourceforge.net
  4.  
  5. Vendor:               HP
  6. Product:              LOGICAL VOLUME
  7. Revision:             3.56
  8. User Capacity:        ,,, bytes [ GB]
  9. Logical block size:    bytes
  10. Logical Unit id:      0x600508b1001cc8a1b9ec4dacc5ab35dc
  11. Serial number:        PDNNK0BRH9U0AG
  12. Device type:          disk
  13. Local Time is:        Mon Feb   ::  CST
  14. Device supports SMART and is Enabled
  15. Temperature Warning Disabled or Not Supported
  16. SMART Health Status: OK
  17.  
  18. Error Counter logging not supported
  19. Device does not support Self Test logging

五、查看网卡信息

（1)查看网卡硬件信息
[root@Master ~]#  lspci | grep -i 'eth'

(2)查看系统的所有网络接口

  1. [root@Master ~]# ifconfig -a
  2. [root@Master ~]# ip link show

(3)查看某个网络接口的详细信息，例如eth0的详细参数和指标

  1. [root@Master ~]# ethtool eth0
  2. Settings for eth0:
  3.         Supported ports: [ FIBRE ]
  4.         Supported link modes:   10000baseT/Full
  5.         Supported pause frame use: No
  6.         Supports auto-negotiation: No
  7.         Advertised link modes:  10000baseT/Full
  8.         Advertised pause frame use: No
  9.         Advertised auto-negotiation: No
  10.         Speed: 10000Mb/s
  11.         Duplex: Full
  12.         Port: FIBRE
  13.         PHYAD:
  14.         Transceiver: external
  15.         Auto-negotiation: off
  16.         Supports Wake-on: d
  17.         Wake-on: d
  18.         Current message level: 0x00000007 ()
  19.                                drv probe link
  20.         Link detected: yes

(4)查看所有网卡的链路状态

  1. [root@Master ~]# for i in `seq  `;do ethtool eth${i} | egrep 'eth|Link';done
  2. Settings for eth0:
  3.         Link detected: yes
  4. Settings for eth1:
  5.         Link detected: yes
  6. Settings for eth2:
  7.         Link detected: no
  8. Settings for eth3:
  9.         Link detected: no
  10. Settings for eth4:
  11.         Link detected: no
  12. Settings for eth5:
  13.         Link detected: no
  14. Settings for eth6:
  15.         Link detected: no
  16. Settings for eth7:
  17.         Link detected: no
  18. Settings for eth8:
  19.         Link detected: no
  20. Settings for eth9:
  21.         Link detected: no

六、列出所有PCI设备信息

  1. [root@Master ~]# lspci -tv | more
  2. -+-[:ff]-+-08.0  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 QPI Link
  3.  |           +-08.3  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 QPI Link
  4.  |           +-09.0  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 QPI Link
  5.  |           +-09.3  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 QPI Link
  6.  |           +-0b.  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 R3 QPI Link  &  Monitoring
  7.  |           +-0b.  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 R3 QPI Link  &  Monitoring
  8.  |           +-0b.  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 R3 QPI Link  &  Monitoring
  9.  |           +-0c.  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
  10.  |           +-0c.  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
  11.  |           +-0c.  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
  12.  |           +-0c.  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
  13.  |           +-0c.  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
  14.  |           +-0c.  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
  15.  |           +-0c.  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
  16.  |           +-0c.  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
  17.  |           +-0d.  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
  18.  |           +-0d.  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers
  19.  |           +-0f.  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Buffered Ring Agent
  20.  |           +-0f.  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Buffered Ring Agent
  21.  |           +-0f.  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Buffered Ring Agent
  22.  |           +-0f.  Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Buffered Ring Agent

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