cpu

lscpu命令，查看的是cpu的統計信息.blue@blue-pc:~$?lscpu

Architecture:??????????i686????????????#cpu架構

CPU?op-mode(s):????????32-bit,?64-bit

Byte?Order:????????????Little?Endian???#小尾序

CPU(s):????????????????4???????????????#總共有4核

On-line?CPU(s)?list:???0-3

Thread(s)?per?core:????1???????????????#每個cpu核，只能支持一個線程，即不支持超線程

Core(s)?per?socket:????4???????????????#每個cpu，有4個核

Socket(s):?????????????1???????????????#總共有1一個cpu

Vendor?ID:?????????????GenuineIntel????#cpu產商?intel

CPU?family:????????????6

Model:?????????????????42

Stepping:??????????????7

CPU?MHz:???????????????1600.000

BogoMIPS:??????????????5986.12

Virtualization:????????VT-x????????????#支持cpu虛擬化技術

L1d?cache:?????????????32K

L1i?cache:?????????????32K

L2?cache:??????????????256K

L3?cache:??????????????6144K

查看/proc/cpuinfo,可以知道每個cpu信息，如每個CPU的型號，主頻等。

#cat?/proc/cpuinfo

processor????:?0

vendor_id????:?GenuineIntel

cpu?family????:?6

model????????:?42

model?name????:?Intel(R)?Core(TM)?i5-2320?CPU?@?3.00GHz

.....

上面輸出的是第一個cpu部分信息，還有3個cpu信息省略了。

內存

free?-m

total???????used???????free?????shared????buffers?????cached

Mem:??????????3926???????3651????????274??????????0?????????12????????404

-/+?buffers/cache:???????3235????????691

Swap:?????????9536?????????31???????9505

這里的單位是MB，總共的內存是3926MB。

查看內存詳細使用#?cat?/proc/meminfo

MemTotal:????????4020868?kB

MemFree:??????????230884?kB

Buffers:????????????7600?kB

Cached:???????????454772?kB

SwapCached:??????????836?kB

.....

查看內存硬件信息

yum -y install dmidecode

dmidecode -t ?查看相關參數， ?以下為帶上相關參數來檢測相關信息。biossystembaseboard ? ? 主板信息chassisprocessor ? ? CPUmemory ? ? ? ?內存cacheconnectorslot注：如果不帶以上參數，就會把所有信息顯示出來，不好查看。

1、dmidecode -t processor查看CPU信息，就可以看到你的CPU是什么型號，多少核，頻率、緩存等信息cat /proc/cpuinfo也一樣可查CPU信息。

2、 dmidecode -t baseboard查看主板信息，會顯示具體的主板英文型號， 國外免費空間

再到網上搜索一下主板的英文型號信息就知道了他屬什么主板，用的什么芯片組。

SMBIOS 2.4 present.Handle 0x0001, DMI type 1, 27 bytesSystem InformationManufacturer: Gigabyte Technology Co., Ltd. ? ? ? Product Name: G31M-ES2L ? ? ? Version: ? ? ? Serial Number: ? ? ? UUID: 00000000-0000-0000-0000-00241DCA48F8 ? ? ? Wake-up Type: Power Switch ? ? ? SKU Number: ? ? ? Family: ? ? ? 這是技嘉主板，G31M 的

3、 dmidecode -t 17 ? ? 能顯示 插入的內存條的詳細信息，如芯片，頻率等等,如：Handle 0x0034, DMI type 17, 27 bytesMemory Device ? ? ? Array Handle: 0x0031 ? ? ? Error Information Handle: 0x0035 ? ? ? Total Width: 64 bits ? ? ? Data Width: 64 bitsSize: 2048 MB ? ? ? Form Factor: DIMM ? ? ? Set: None ? ? ? Locator: DIMM0 ? ? ? Bank Locator: BANK0Type: DDR2 ? ? ? Type Detail: SynchronousSpeed: 800 MHz ? ? ? Manufacturer: Manufacturer00 ? ? ? Serial Number: SerNum00 ? ? ? Asset Tag: AssetTagNum0 ? ? ? Part Number: ModulePartNumber00以上信息顯示，內存為2G DDR2 800的。

或 ? ?dmidecode -t memory能顯示主板支持最大多少的內存，最多支持多少， 內存是否雙通道等、如： ? ? ? (有些系統，或主板不能顯示這些信息)Handle 0x0008, DMI type 5, 24 bytesMemory Controller Information ? ? ? Error Detecting Method: None ? ? ? Error Correcting Capabilities: ? ? ? ? ? ? ? None ? ? ? Supported Interleave: One-way Interleave ? ? ? Current Interleave: One-way Interleave ? ? ? Maximum Memory Module Size: 16384 MB ? 單條支持16G ? ? ? Maximum Total Memory Size: 65536 MB ? ? ?最大支持64G ? ? ? Supported Speeds: ? ? ? ? ? ? ? Other ? ? ? Supported Memory Types: ? ? ? ? ? ? ? DIMM ? ? ? Memory Module Voltage: 3.3 V ? ? ? Associated Memory Slots: 4 ? ? ? ? ? ? ? 0x0009 ? ? ? ? ? ? ? 0x000A ? ? ? ? ? ? ? 0x000B ? ? ? ? ? ? ? 0x000C ? ? ? Enabled Error Correcting Capabilities: ? ? ? ? ? ? ? NoneHandle 0x0009, DMI type 6, 12 bytesMemory Module Information ? ? ? Socket Designation: DIMM0 ? ? ? Bank Connections: 0 1 ? ? ? Current Speed: 25 ns ? ? ? Type: DIMM ? ? ? Installed Size: 2048 MB (Double-bank Connection) ?雙通道 ? ? ? Enabled Size: 2048 MB (Double-bank Connection) ? ? ? Error Status: OK

查看bios信息

#?dmidecode?-t?bios

#?dmidecode?2.12

SMBIOS?2.4?present.

Handle?0x0000,?DMI?type?0,?24?bytes

BIOS?Information

Vendor:?Phoenix?Technologies?LTD

Version:?6.00

Release?Date:?07/02/2012

Address:?0xEA0C0

Runtime?Size:?89920?bytes

ROM?Size:?64?kB

Characteristics:

ISA?is?supported

PCI?is?supported

PC?Card?(PCMCIA)?is?supported

PNP?is?supported

APM?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

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

Smart?battery?is?supported

BIOS?boot?specification?is?supported

Function?key-initiated?network?boot?is?supported

Targeted?content?distribution?is?supported

BIOS?Revision:?4.6

Firmware?Revision:?0.0

如果要查看所有有用信息dmidecode?-q

里面包含了很多硬件信息

磁盤

查看硬盤和分區分布

#?lsblk

NAME???MAJ:MIN?RM???SIZE?RO?TYPE?MOUNTPOINT

sda??????8:0????0?465.8G??0?disk

├─sda1???8:1????0?????1G??0?part?/boot

├─sda2???8:2????0???9.3G??0?part?[SWAP]

├─sda3???8:3????0??74.5G??0?part?/

├─sda4???8:4????0?????1K??0?part

├─sda5???8:5????0?111.8G??0?part?/home

└─sda6???8:6????0?269.2G??0?part

如果要看硬盤和分區的詳細信息

#?fdisk?-l

Disk?/dev/sda:?500.1?GB,?500107862016?bytes

heads,?63?sectors/track,?60801?cylinders,?total?976773168?sectors

Units?=?sectors?of?1?*?512?=?512?bytes

Sector?size?(logical/physical):?512?bytes?/?4096?bytes

I/O?size?(minimum/optimal):?4096?bytes?/?4096?bytes

Disk?identifier:?0x00023728

Device?Boot??????Start?????????End??????Blocks???Id??System

/dev/sda1???*????????2048?????2148351?????1073152???83??Linux

/dev/sda2?????????2148352????21680127?????9765888???82??Linux?swap?/?Solaris

/dev/sda3????????21680128???177930239????78125056???83??Linux

/dev/sda4???????177932286???976771071???399419393????5??Extended/dev/sda5???????177932288???412305407???117186560???83??Linux

/dev/sda6???????412307456???976771071???282231808???83??Linux

網卡

查看網卡硬件信息#?lspci?|?grep?-i?'eth'

02:00.0?Ethernet?controller:?Intel?Corporation?82545EM?Gigabit?Ethernet?Controller?(Copper)?(rev?01)

02:01.0?Ethernet?controller:?Intel?Corporation?82545EM?Gigabit?Ethernet?Controller?(Copper)?(rev?01)

查看系統的所有網絡接口

#?ifconfig?-a

eth0??????Link?encap:以太網??硬件地址?b8:97:5a:17:b3:8f

.....

lo????????Link?encap:本地環回

或者：

#?ip?link?show

1:?lo:??mtu?16436?qdisc?noqueue?state?UNKNOWN

link/loopback?00:00:00:00:00:00?brd?00:00:00:00:00:00

2:?eth0:??mtu?1500?qdisc?pfifo_fast?state?UP?qlen?1000

link/ether?00:0c:29:65:fa:72?brd?ff:ff:ff:ff:ff:ff

3:?eth1:??mtu?1500?qdisc?pfifo_fast?state?UP?qlen?1000

link/ether?00:0c:29:65:fa:7c?brd?ff:ff:ff:ff:ff:ff

如果要查看某個網絡接口的詳細信息，例如eth0的詳細參數和指標

#?ethtool?eth0

Settings?for?eth0:

Supported?ports:?[?TP?MII?]

Supported?link?modes:???10baseT/Half?10baseT/Full

100baseT/Half?100baseT/Full

1000baseT/Half?1000baseT/Full?#支持千兆半雙工，全雙工模式

Supported?pause?frame?use:?No

Supports?auto-negotiation:?Yes?#支持自適應模式，一般都支持

Advertised?link?modes:??10baseT/Half?10baseT/Full

100baseT/Half?100baseT/Full

1000baseT/Half?1000baseT/Full

Advertised?pause?frame?use:?Symmetric?Receive-only

Advertised?auto-negotiation:?Yes?#默認使用自適應模式

Link?partner?advertised?link?modes:??10baseT/Half?10baseT/Full

100baseT/Half?100baseT/Full

.....

Speed:?100Mb/s?#現在網卡的速度是100Mb,網卡使用自適應模式，所以推測路由是100Mb，導致網卡從支持千兆，變成要支持百兆

Duplex:?Full???#全雙工

.....

Link?detected:?yes????#表示有網線連接，和路由是通的

iftop能監控所有程序占用的網絡帶寬

安裝iftop工具

yum?-y?installflex?byacc??libpcap　libpcap-devel?ncurses?ncurses-devel

wget?http://www.ex-parrot.com/~pdw/iftop/download/iftop-0.17.tar.gz

tar?zxvf?iftop-0.17.tar.gz

cd?iftop-0.17

./configure

make?&&?make?install

進行網絡帶寬流量查看

直接輸入iftop即可。

其他

查看pci信息，即主板所有硬件槽信息。lspci

00:00.0?Host?bridge:?Intel?Corporation?2nd?Generation?Core?Processor?Family?DRAM?Controller?(rev?09)?#主板芯片

00:02.0?VGA?compatible?controller:?Intel?Corporation?2nd?Generation?Core?Processor?Family?Integrated?Graphics?Controller?(rev?09)?#顯卡

00:14.0?USB?controller:?Intel?Corporation?Panther?Point?USB?xHCI?Host?Controller?(rev?04)?#usb控制器

00:16.0?Communication?controller:?Intel?Corporation?Panther?Point?MEI?Controller?#1?(rev?04)

00:1a.0?USB?controller:?Intel?Corporation?Panther?Point?USB?Enhanced?Host?Controller?#2?(rev?04)

00:1b.0?Audio?device:?Intel?Corporation?Panther?Point?High?Definition?Audio?Controller?(rev?04)?#聲卡

00:1c.0?PCI?bridge:?Intel?Corporation?Panther?Point?PCI?Express?Root?Port?1?(rev?c4)?#pci?插槽

00:1c.2?PCI?bridge:?Intel?Corporation?Panther?Point?PCI?Express?Root?Port?3?(rev?c4)

00:1c.3?PCI?bridge:?Intel?Corporation?Panther?Point?PCI?Express?Root?Port?4?(rev?c4)

00:1d.0?USB?controller:?Intel?Corporation?Panther?Point?USB?Enhanced?Host?Controller?#1?(rev?04)

00:1f.0?ISA?bridge:?Intel?Corporation?Panther?Point?LPC?Controller?(rev?04)

00:1f.2?IDE?interface:?Intel?Corporation?Panther?Point?4?port?SATA?Controller?[IDE?mode]?(rev?04)?#硬盤接口

00:1f.3?SMBus:?Intel?Corporation?Panther?Point?SMBus?Controller?(rev?04)

00:1f.5?IDE?interface:?Intel?Corporation?Panther?Point?2?port?SATA?Controller?[IDE?mode]?(rev?04)?#硬盤接口

02:00.0?Ethernet?controller:?Realtek?Semiconductor?Co.,?Ltd.?RTL8111/8168B?PCI?Express?Gigabit?Ethernet?controller?(rev?06)?#網卡

03:00.0?PCI?bridge:?Integrated?Technology?Express,?Inc.?Device?8893?(rev?41)

如果要更詳細的信息:lspci -v 或者lspci -vv

如果要看設備樹:lscpi -t

DELL磁盤陣列控制卡(RAID卡)管理工具MegaCli和IDRAC

MegaCli常用管理命令匯總

進入

選擇相應版本的安裝包

下載之后解壓，unzip?8.07.14_MegaCLI.zip

cd?Linux/

rpm?-ivh?MegaCli-8.07.14-1.noarch.rpm

rpm?-ql?MegaCli

ln?-s?/opt/MegaRAID/MegaCli/MegaCli64?/usr/bin

MegaCli?-PDList?-aALL???查看物理硬盤的信息的。

總結

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