Top external storage vendors: EMC, HP, IBM, Dell

In 2005, EMC maintained its lead in the external disk storage systems market with 20.7% revenue share, followed by HP and IBM with 18.3% and 13.6% revenue share, respectively. Dell and Hitachi rounded out the top 5 with 8.4% and 8.0%, respectively. Among the top 5 suppliers, Dell and IBM posted the strongest YTY revenue growth during 2005, with 36.5% and 23.8% growth, respectively. For the full year, the total disk storage systems market posted 10.7% growth to $23.7 bln. In the total worldwide disk storage systems market, HP lead the market with 23.1% followed by IBM with 20.3% revenue share respectively. EMC maintained the third position with 14.2% revenue share. Dell and IBM posted the largest year-over-year revenue growth among the top 5 vendors during the quarter, with 29.9% and 12.0% growth respectively.

Worldwide external disk storage systems in 2005
	2005		2004		Growth
	Revenue	Share	Revenue	Share	YTY
EMC	$3,364	20.7%	$3,054	21.1%	10.2%
HP	$2,965	18.3%	$2,649	18.3%	11.9%
IBM	$2,206	13.6%	$1,782	12.3%	23.8%
Dell	$1,358	8.4%	$995	6.9%	36.5%
Hitachi	$1,297	8.0%	$1,243	8.6%	4.3%
Others	$5,054	31.1%	$4,769	32.9%	6.0%
Total	$16,245	100.0%	$14,492	100.0%	12.1%
Source: IDC