Executive Summary
Capacity-optimization technologies play a critical role in today’s environment where
companies need to do more with less. The EMC® VNX®2 series of storage systems are
well-equipped to meet users’ needs in this regard. By using deduplication and
compression, users can significantly increase storage utilization for file and block
data. The intelligent and automated deduplication and compression features on both
Block and File are provided in the VNX Operating Environment (VNX OE) at no
additional cost.
Management is simple and convenient. Once the capacity-optimization technologies
are turned on, the system intelligently manages capacity-optimization processes as
new data is written. With Unisphere®, users can manage block and file data from a
single, user friendly interface.
This white paper discusses the capacity-optimization capabilities of VNX2 series
systems, how they are best deployed, and how they fit in with other capacityoptimization
technologies in the storage environment.
This white paper is intended for anyone interested in understanding the
deduplication and compression functionality included with the VNX2 series storage
Introduction to VNX data deduplication and compression
VNX systems are designed and built to handle the I/O demands of a large number of
Flash drives. Performance-optimization features such as Multicore FAST Cache and
Fully Automated Storage Tiering for Virtual Pools (FAST VP) move the busiest data
onto the highest-performing drives, which helps to increase the system’s IOPS-perdollar.

The use of capacity efficiency features such as deduplication and compression play a
large role in helping to lower the total cost of ownership. First, deduplication and
compression both work to reduce the space requirements needed for datasets.
Compounded efficiencies are attained when deduplication and compression are used
with FAST VP and Multicore FAST Cache.
VNX File Deduplication and Compression achieve savings at the file level, while VNX
Block Deduplication and VNX Block Compression achieve savings at the LUN level. All
VNX deduplication and compression features discussed in this paper are available on
the VNX2 Series (VNX5200, VNX5400, VNX5600, VNX5800, VNX7600, and VNX8000).
As part of EMC’s effort to improve its products, EMC periodically releases revisions of
its software. EMC recommends running the latest release available where possible.
The product release notes provide the most up-to-date information on product
features and enhancements.