Not really an HPC/Big Data play (yet). But they have filed.
The traditional array market is in a decline, and depending upon how you view it, its either merely a steep decline, or an out-and-out death spiral. The tier1 vendors are defending a shrinking turf against aggressive smaller and more focused players.
Moreover, flash is set to overtake disk in terms of lower cost to deploy in very short order. This plays well for folks like Pure and a few others, though the market they are playing in is in decline. I expect pure to look to branch out to the growing markets at some point, with the proceeds from their IPO.
Its the hyperconverged or serverSAN market that is in explosive growth. This is where our company sits.