On which systems is Quality of Service available?

On which systems is Quality of Service available?
A . Physical Unity systems only
B . UnityVSA systems only
C . Physical Unity and UnityVSA systems
D . All Flash Unity systems only

Answer: C

Explanation:

UnitVSA features Host I/O limits, also known as Quality of service.

The EMC [Physical] Unity array comes with a pack of new hardware and software features focusing on the true unification:

– Support for setting up Host I/O limits, also known as QOS, providing a more predictable performance

for the workloads by putting limits on I/O throughputs and bandwidth

– DPE reduced from a 7U footprint to an innovative 2U footprint

– 12 GB SAS back-end for the Unity DAEs; EMC VNX/VNXe supported only 6 GB SAS backend

– Completely redesigned user interface based on HTML5

References:

http://www.presidio.com/blog/technical-summary-emc-unification-unity

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