Storage DRS can be enabled and can balance I/O levels based on _______________
A.
real-time stats
B.
historical stats
Explanation:
Storage DRS can balance I/O by using storage vMotion. This would be based on historical
valuesfor a period of time. Storage DRS would make decisions based on these figures. If the
system were using realtimestats, the machines could potentially migrate a lot more. This could
have an effect on the latency figuresfor some systems. The larger historical sampling in storage
DRS allows the system to make a decision withlimited risk of impacting I/O—unlike moving a
virtual machine over and over again.
Chapter 4, Storage Design – The Logical & Physical Approaches