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Deconstructing the storage algorithm
This article is part of the Storage magazine issue of July 2014 Vol. 13 No. 5
James Harvey Robinson, the American historian, once said, "Most of our so-called reasoning consists in finding arguments for going on believing as we already do." I'm reminded of this quote at many of the events I attend, especially when I'm asked to make sense of industry analyst projections about storage trends. To wit: Is it true that SANs are heading for a SAN-pocalypse, to be replaced by "server-side virtual SAN [VSAN] configurations and software-defined storage, as the Wikibon folks assert?" If it's true that storage capacity demand is exploding behind virtual servers, as IDC and Gartner suggest, why aren't sales of disk drives and storage arrays exploding too, rather than shrinking? Will solid-state storage really replace all hard disk storage within the next couple of years? What about cloud storage? Generally, I try to avoid addressing these kinds of questions, since most folks are afflicted with confirmation bias, and they almost always want the numbers to add up a certain way. If I take a position that jibes with ...
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Features in this issue
Using solid-state storage as cache can boost server and application performance dramatically, but the kind of flash cache you choose is critical.
Object technology offers scalability, economical operation and better data management; but it's very different from file and block storage systems.
Both the enterprise and midrange categories saw first-time winners in our ninth annual Quality Awards for backup and recovery software.
Solid-state technology deployments continue to climb. However, the favorite implementation method has switched from hybrid arrays to all-flash arrays.
Columns in this issue
Buying storage gear can be confusing, but if you put some effort into learning the real meaning behind vendors' data storage terms, it could also be a lot of fun.
Jon Toigo examines the four steps of the storage algorithm, and concludes that the current storage equation just doesn't add up.
Ethernet has made advances with packet dropping and speed in recent years, but Fibre Channel remains the SAN protocol of choice for performance.
If you're still buying separate servers, network and storage, you might consider converged infrastructure systems as a modern alternative.