In various embodiments, business software system server 104 comprises {HEAD ~ one or more physical servers} with one or more processors, one or more memories, and one or more other storage devices and {TAIL ~ one or more virtual environments} in which an application is executed 
In various embodiments , business software system server 104 comprises { HEAD ~ one or more physical servers } with one or more processors , one or more memories , and one or more other storage devices and { TAIL ~ one or more virtual environments } in which an application is executed
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