查看网卡速率

ethtool eth0 |grep Speed

这里的Speed是网卡的实际最大速率；如果开启了自动协商，就是是网卡和交换机协商之后的速率。

附带一个自动化脚本

PREFIX="p1p1"
ETH=ifconfig |grep ${PREFIX} | head -n1 | awk -F":" '{print $1;}'

if [ -z "${ETH}" ];then
   echo "emxx is not found"
   ifconfig
   exit 1
fi

ethtool eth0 |grep Speed

查看内存信息

• 支持的内存槽数
• 支持的最大内存

sudo dmidecode -t memory

输出如下：

# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 2.8 present.

Handle 0x0028, DMI type 16, 23 bytes
Physical Memory Array
        Location: System Board Or Motherboard
        Use: System Memory
        Error Correction Type: None
        Maximum Capacity: 8 GB
        Error Information Handle: Not Provided
        Number Of Devices: 2

Handle 0x002A, DMI type 17, 40 bytes
Memory Device
        Array Handle: 0x0028
        Error Information Handle: Not Provided
        Total Width: 64 bits
        Data Width: 64 bits
        Size: 4 GB
        Form Factor: DIMM
        Set: None
        Locator: A1_DIMM0
        Bank Locator: A1_BANK0
        Type: DDR3
        Type Detail: Unknown
        Speed: 1600 MT/s
        Manufacturer: Samsung
        Serial Number: 37A52995
        Asset Tag: A1_AssetTagNum0
        Part Number: M471B5173DB0-YK0
        Rank: 1
        Configured Memory Speed: 1333 MT/s
        Minimum Voltage: 1.35 V
        Maximum Voltage: 1.5 V
        Configured Voltage: 1.35 V

Handle 0x002C, DMI type 17, 40 bytes
Memory Device
        Array Handle: 0x0028
        Error Information Handle: Not Provided
        Total Width: Unknown
        Data Width: 64 bits
        Size: No Module Installed
        Form Factor: DIMM
        Set: None
        Locator: A1_DIMM1
        Bank Locator: A1_BANK1
        Type: Unknown
        Type Detail: Unknown
        Speed: Unknown
        Manufacturer: A1_Manufacturer1
        Serial Number: A1_SerNum1
        Asset Tag: A1_AssetTagNum1
        Part Number: Array1_PartNumber1
        Rank: Unknown
        Configured Memory Speed: Unknown
        Minimum Voltage: Unknown
        Maximum Voltage: Unknown
        Configured Voltage: Unknown