D-UN-DY-23 practice question 1 of 10

What is a characteristic of FAST VP?

Full set: 41 questions

Answer options

A: Fast VP data relocation runs in the background at all times once it is enabled.

B: Fast VP optimizes data replacement by moving 1 GB slices between disk tiers.

C: Users can set the Fast VP data relocation rate. Correct answer

D: Users can enable or disable FAST VP at the LUN level.

Correct Answer:

C. Users can set the Fast VP data relocation rate.

Explanation

Dell EMC Unity's Fully Automated Storage Tiering for Virtual Pools (FAST VP) allows administrators to control the data relocation process. The relocation rate can be set to Low, Medium, or High, which adjusts the system resource impact of the tiering activity. This setting provides flexibility to balance performance optimization with the overhead of data movement, allowing administrators to prioritize I/O for production workloads during business hours by selecting a lower rate.

Why Incorrect

A. FAST VP data relocation runs on a scheduled basis, typically outside of peak hours, not continuously at all times.
B. FAST VP on Unity systems uses a data slice (or chunk) size of 256 MB for data movement, not 1 GB.
D. FAST VP is a feature enabled and configured at the storage pool level, not on individual LUNs.

References

1. Dell EMC Unity: FAST Technology A Detailed Review. (April 2017). Page 11

"Relocation Rate".

2. Dell EMC Unity Family Unisphere Online Help. (Accessed for Unity OE version 5.x). Section: "Pool Properties > Tiers tab"

Description of "Data Relocation Rate".

Keep practicing

Take the free D-UN-DY-23 practice test

Ten exam-style questions with answers and explanations, plus the exam facts and study guides.

Start the free practice test