According to Jeffrey W. Baker:
> I will address two points:
>
> There is a very high degree of parallelism in modern PC architecture.
> The I/O hardware is helpful here. The machine can do many things while
> a SCSI subsystem is processing a command, or the network hardware is
> writing a buffer over the wire.
Yes, for performance it is going to boil down to contention for
disk and RAM and (rarely) CPU. You just have to look at pricing
for your particular scale of machine to see whether it is cheaper
to stuff more in the same box or add another. However, once you
have multiple web server boxes the backend database becomes a
single point of failure so I consider it a good idea to shield
it from direct internet access.
Les Mikesell
[EMAIL PROTECTED]
