1 查看CPU
1.1 查看CPU个数
# cat /proc/cpuinfo | grep "physical id" | uniq | wc -l
2 uniq命令：删除重复行;wc –l命令：统计行数**
1.2 查看CPU核数
# cat /proc/cpuinfo | grep "cpu cores" | uniq
cpu cores : 4
1.3 查看CPU型号
# cat /proc/cpuinfo | grep 'model name' |uniq
model name : Intel(R) Xeon(R) CPU E5630 @ 2.53GHz
总结：该服务器有2个4核CPU，型号Intel(R) Xeon(R) CPU E5630 @ 2.53GHz
2 查看内存
2.1 查看内存总数
#cat /proc/meminfo | grep MemTotal
MemTotal: 32941268 kB //内存32G
2.2 查看内存条数
本节内容引自新浪博文《Linux查看内存条数》
http://www.developcls.com/qa/3ffeb7c82abf4415a44c86b4d2bb158e.html
http://www.developcls.com/qa/190848533dcc47d2b1fd7430dfe073a3.html
查看原文：
# dmidecode |grep -A16 "Memory Device$"
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 2048 MB //1条2G内存
Form Factor: DIMM
Set: 1
Locator: DIMM1
Bank Locator: Not Specified
Type: DDR2
Type Detail: Synchronous
Speed: 667 MHz
Manufacturer: 7F7F7F7F7F510000
Serial Number: 0403E324
Asset Tag: 450721
Part Number: 72T256220HR3SA
--
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 2048 MB //1条2G内存
Form Factor: DIMM
Set: 1
Locator: DIMM2
Bank Locator: Not Specified
Type: DDR2
Type Detail: Synchronous
Speed: 667 MHz
Manufacturer: 7F7F7F7F7F510000
Serial Number: 0403E324
Asset Tag: 450721
Part Number: 72T256220HR3SA
--
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: No Module Installed //1个内存空槽
Form Factor: DIMM
Set: 2
Locator: DIMM3
Bank Locator: Not Specified
Type: DDR2
Type Detail: Synchronous
Speed: Unknown
Manufacturer:
Serial Number:
Asset Tag:
Part Number:
--
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: No Module Installed //1个内存空槽
Form Factor: DIMM
Set: 2
Locator: DIMM4
Bank Locator: Not Specified
Type: DDR2
Type Detail: Synchronous
Speed: Unknown
Manufacturer:
Serial Number:
Asset Tag:
Part Number:
--
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: No Module Installed //1个内存空槽
Form Factor: DIMM
Set: 3
Locator: DIMM5
Bank Locator: Not Specified
Type: DDR2
Type Detail: Synchronous
Speed: Unknown
Manufacturer:
Serial Number:
Asset Tag:
Part Number:
--
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: No Module Installed //1个内存空槽
Form Factor: DIMM
Set: 3
Locator: DIMM6
Bank Locator: Not Specified
Type: DDR2
Type Detail: Synchronous
Speed: Unknown
Manufacturer:
Serial Number:
Asset Tag:
Part Number:
总结：该服务器有两条2G内存 ，空余4个插槽
3 查看硬盘
3.1 查看硬盘大小
# fdisk -l | grep Disk
Disk /dev/cciss/c0d0: 146.7 GB, 146778685440 bytes
总结：硬盘大小146.7G，即厂商标称的160G
4 查看主板
查看主板型号：
dmidecode |grep -A16 "System Information$"
内存槽及内存条：
dmidecode |grep -A16 "Memory Device$"
5、物理机SN编号以及机型等信息
dmidecode可以查看很多物理机的很多信息，包含SN编号、内存、CPU、主板等若干信息，虚拟机也可以使用该命令，但是获取到的信息没有物理机那么多。
6、检查物理机是千兆还是万兆网卡
ethtool eth 0 |grep Speed
ethtool bond0 |grep Speed #可以用来检查bond做的是否合适，合适的情况下 得到的网卡速率是普通速率的2倍
7、检查电源个数
dmidecode |grep 750W |wc -l #在知道电源功率的情况下可以执行命令获取电源个数
