Caching and tiering have been abused by marketing in enterprise IT, often used interchangeably, or simply when not applicable. Luckily, we’ve got a table, it’s round, and surrounded by storage experts. They’ll explain the technical differences between caching and tiering, how to identify which is being used, and what are the performance implications of each.
Did some pNFS proponent slip a love potion into the coffee at EMC? Suddenly it’s pNFS time at the company known for its reluctance to embrace file sharing and filesystems in general. The purple prose is flying, with Chad Sakac declaring himself “a big fan of the application of NFS” and Chuck Hollis extolling the “inherent simplicity and ease-of-management of NFS.” The NetApp guys must be amused by the bear hug from Hopkinton, but many are seeing deja-vu all over again.
You can take the view that Cisco Unified Computing System is a product that is carefully designed so that selling it is as easy as possible. A cynical marketing analysis has produced a product that customers can be convinced to buy. Or is it an innovation in server and data centre design that is desperately needed?