System vendor configuration--- CRITICAL vs OPTIMAL

It does not limited to disk but
apply to any key performance measurement within
a system.

As a system vendor, we need to consider ISV and
even end user vertical work load, system architecture
and deployment consideration from data center
operation point of view. To do so, we can make
a realistic assessment on total cost of ownership
at the end point. It is good for competitive analysis
at the end point and architecture selection at end
user level.

However, I am wondering if it is required for a system
vendor to implement a end-to-end HW configuration or
stay at a critical point but leave the further specific
HW and SW HA deployment as alternatives ?

Specifically, I tend to think we need to provide CRITICAL
instead of OPTIMAL configurations in order to leave
flexible and overheads to end deployment to make a
choice.

Regarding to CRITICAL vs OPTIMAL, we can classify the
default configurations so that systems meet customer
demands.