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.

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.

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".