Please I just want to know if this is a good idea especially for a production server?
No, this is not a good idea, unless you're installing for learning purposes.
If is is, what are the advantages or disadvantages of installing esxi on workstation rather than booting the machine the the installation cd?
For production server, vSphere ESXi should run on top of physical machine, but remember that physical hardware must be on HCL.
"For production server, vSphere ESXi should run on top of physical machine, but remember that physical hardware must be on HCL."
Thanks Richardson. please what is HCL
HCL is hardware compatibility list. Check the following link
Regards,
Suresh