ProStor has announced that just 200 customers have bought its multi-disk InfiniVault archive whereas there are 250,000 customers for the single slot RDX removable disk product.

The quarter of a million customers have bought more than 1 million RDX disk cartridges, totalling 200PB of capacity.

The InfiniVault multi-disk archive was announced in 2008, and ProStor's Ian Duncan, a marketing and strategy veep, said: "In our first two years selling into the archive system space, we secured 100 InfiniVault customers. In the last two quarters, we've added another 100 clients, bringing us to today's milestone of 200 customers."

The ProStor release tells us that the company has more than 250 channel partners, including seven OEM partners. That translates to a low rate of InfiniVault sales through this channel; less than one customer per channel partner after two-and-a-half years of selling. InfiniVault looks like a niche product and not a runaway success. ®