如何判断服务器为虚拟机还是物理真机？

 dmidecode |grep -A20 "Memory Device$"|sed -n -e'/Locator/p' -e '/Size/p'|grep -v "Bank Locator"

看内存分布

[真机]# dmidecode |grep -A20 "Memory Device$"|sed -n -e'/Locator/p' -e '/Size/p'|grep -v "Bank Locator"

        Size: 4096 MB

        Locator: DIMM0

        Size: 4096 MB

        Locator: DIMM1

        Size: 4096 MB

        Locator: DIMM2

        Size: 4096 MB

        Locator: DIMM3

[虚拟机]#  dmidecode |grep -A20 "Memory Device$"|sed -n -e'/Locator/p' -e '/Size/p'|grep -v "Bank Locator"

        Size: 1024 MB

        Locator: RAM slot #0

        Size: 512 MB

        Locator: RAM slot #1

        Size: 256 MB

        Locator: RAM slot #2

        Size: 128 MB

        Locator: RAM slot #3

        Size: 64 MB

        Locator: RAM slot #4

        Size: 16 MB

        Locator: RAM slot #5

        Size: No Module Installed

        Locator: RAM slot #6

        Size: No Module Installed

        Locator: RAM slot #7

        Size: No Module Installed

        Locator: RAM slot #8

        Size: No Module Installed

        Locator: RAM slot #9

        Size: No Module Installed

        Locator: RAM slot #10

        Size: No Module Installed

        Locator: RAM slot #11

        Size: No Module Installed

        Locator: RAM slot #12

        Size: No Module Installed

        Locator: RAM slot #13

        Size: No Module Installed

        Locator: RAM slot #14
-------》内存分布不均匀

---直接看产品名

 dmidecode |grep "Product"

[root@lixora ~]#  dmidecode |grep "Product"

        Product Name: VMware Virtual Platform

        Product Name: 440BX Desktop Reference Platform

[root@oracle sysbench-0.4.12]#  dmidecode |grep "Product"

        Product Name: System Product Name

        Product Name: P8Z68-V LX

------观察硬件设备，如果看到VMware 类似字符基本为虚拟机了

[虚拟机】lspci -b|grep VMware

00:07.7 System peripheral: VMware Virtual Machine Communication Interface (rev 10)

00:0f.0 VGA compatible controller: VMware SVGA II Adapter

00:11.0 PCI bridge: VMware PCI bridge (rev 02)

00:15.0 PCI bridge: VMware PCI Express Root Port (rev 01)

00:15.1 PCI bridge: VMware PCI Express Root Port (rev 01)

00:15.2 PCI bridge: VMware PCI Express Root Port (rev 01)

00:15.3 PCI bridge: VMware PCI Express Root Port (rev 01)
00:15.4 PCI bridge: VMware PCI Express Root Port (rev 01)