The rate of change in the storage world continues to accelerate. Adoption of new technologies such as
virtualization and flash (semiconductor) memory has become pervasive.
High-end disk arrays have not been an exception to these trends. There has been a large-scale shift toward
use of hybrid, multi-tier architectures that employ flash technology and conventional hard disk drives
(HDDs) to boost performance and reduce media costs.
The two platforms that are the focus of this report – IBM System Storage DS8870 and EMC Symmetrix
VMAX 40K – have been at the forefront of this shift. Both combine advanced tiering with established
strengths in stability, availability and recoverability that are mandated for core business-critical systems.
There are, however, differences in pricing practices and technology strategies that affect comparative costs.