The external controller-based (ECB) disk storage market was profoundly impacted by the global economic downturn in 2009 and experienced an 8,6% year-on-year decline from $18-billion in 2008 to $16,3-billion in 2009, according to Gartner.

This is the first annual decline for the market since 2002. All regions experienced a drop in revenue in 2009; the most acutely affected regions were Japan, Latin America, and Europe, the Middle East and Africa.
“The large monolithic/frame-based disk array market declined 21,1% and, for the first time since Gartner has been reporting on the ECB disk storage market, this segment represented less than 30% of the total market,” says Roger Cox, research vice-president at Gartner. “This result, in part, reflects the advancements that the lower-cost modular disk array systems have made in performance and capacity scalability, as well as robust data services associated with local and remote replication.”
Reflecting the increase in unstructured data and file sharing consolidation, the network-attached storage (NAS) market segment increased 1,4% in 2009, while the block-access modular ECB disk storage segment declined 2,8% and the special purpose disk archiving system segment fell 31,6% in revenue. Year-on-year raw terabyte shipments grew only 39,1% in 2009, and the price per terabyte decreased 34,3%, well within historic trends.
EMC retained the top spot in 2009, in part because of its leadership in the monolithic/frame-based, block access modular disk array and special-purpose disk archiving storage systems markets and the acquisition of Data Domain.
Led by XIV revenue growth in 2009 and the foruth quarter resurgence in its DS5000/3000 series, IBM grew 11,9% in the fourth quarter of 2009 strengthening its hold on the number two market share position. Reflecting the benefits of its unified storage architecture and the tight integration of SnapManager with leading independent software vendor (ISV) software, NetApp grew 14,3% in the fourth quarter of 2009 and took over the fifth spot from Dell.