Letting vCenter manage the VMs or manage the VMs ourselves is better?

[Rapiscan]

What are the advantages in letting vCenter server manage the VMs?

Your opinion are welcome.

Johnny

[Troy_Clavell]

there are a lot of advantages.  Just to name a few

1.  HA

2. DRS (vMotion)

3.  Centralized Administration

4. Templates

5. Clones

6.  etc

[Rapiscan]

Assuming we have the DRS, HA & FT enabled, but there are some members in our team like to move "migrate" the VMs manually to each Host.

Will this affect the performance of entire VMware?

If I want to set DRS, HA & FT. Should I have 3 or 4 Hosts of ESX/ESXi? is the 4th host too much (overkill)?

[Troy_Clavell]

Assuming we have the DRS, HA & FT enabled, but there are some  members in our team like to move "migrate" the VMs manually to each  Host.

Will this affect the performance of entire VMware?

meaning a manual vMotion?  It should have minimal impact of the envornment.  A vMotion is just a move of the active memory of the guest from one host to the other.

If I want to set DRS, HA & FT. Should I have 3 or 4 Hosts of ESX/ESXi? is the 4th host too much (overkill)?

That depends.. We know nothing of your enviornment.