How to find out CPU info of your ESX/VI3 Server

Since (hopefully) all ESX administrators are aware that not only does the processor have to be from the same manufacturer (e.g. Intel or AMD) for VMotions to work, but that the processors also have to be from the same family, it is imperative to know exactly what CPU is in your ESX server.

To get your processor information, from a shell prompt type:
cat /proc/cpuinfo

You’ll get something like this:
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 5
model name : AMD Opteron™ Processor 252
stepping : 1
cpu MHz : 2605.929
cache size : 1024 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cupid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall mmxext lm 3dnowext 3dnow
bogomips: 5203.55

- Jason Langone

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