Regardless, that's still about one-third the 128-TByte maximum HDS now claims for the Hitachi Lightning 9900V, which is also resold by Hewlett-Packard Co. (NYSE: HPQ) and Sun Microsystems Inc. (Nasdaq: SUNW) (see HDS Launches Preemptive Strike).
EMC responds to this fact in three ways: One, customers don't need that much storage today; two, once they do EMC will be there; and three, the performance of an HDS system loaded with 100-plus TBytes would drag significantly. EMC claims the DMX architecture has the ability to provide up to 2,048 drives in a single system, which the company says it will do at some point, if "customer demands dictate."
"There's no technical reason why we couldn't have built a larger one, but the DMX model capacities are aimed directly at customer requirements," says EMC spokesman A.J. Ragosta.
However, EMC's own marketing materials appear to contradict this position. The first customer win the company announced for the DMX -- General Mills Inc. -- is deploying 150 TBytes. That means it needs to install at least five DMX 2000 units. Qu'est que c'est? (See General Mills Upgrades to EMC DMX.)
On the other hand, it's true that most enterprises' requirements fall within that maximum 37-TByte range provided by the DMX. According to IDC, EMC customers averaged 12.1 TBytes per unit. Even HDS concedes that 30 TBytes pushes the upper limit of what its customers typically run in a single frame, though it claims a handful do require more.
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