Virtual Appliances and Upgrading vCPU's within the virtual Environment

Question

Hi all, 
 if you create a virtual appliance within ESXi 5.5, if at a point later an increase in the amount of virtual CPU is requested ... 
 1. Can this be accomplished? 
 2. does the Linux OS see these extra CPUs? 
 3 will the Virtual Appliance use these extra CPU's? 
 4. is there any drawbacks/issues after upgrading? 
 5. what would be the correct CPU number if the spec is for 3Ghz CPU speed, and the Virtual CPU is based at the lower end at 2.4Ghz? 
 any guidance on this would be extremely helpful

darrellr · Accepted Answer

1. Yes 
 2. After a reboot, yes, it should. 
 3. Yes (see #2) 
 4. Not likely. 
 5. Depends on your needs. How many users, how many features are enabled, etc.. Start at 2 and see what happens. 4 if you have extra cores. It really depends on what features you enable and how many users you have.