Today is seems like every vendor on the planet has a “unified” storage system. But what is “unified storage”?
Hardly a day goes by without one vendor or another “redefining unified storage” so it is pretty hard to tell. Any vendor with separate SAN and a NAS platforms and a management interface calls themselves unified. Some iSCSI only storage vendors are even calling themselves “unified”.
In 2010 John Webster wrote a piece entitled “Is it unified or un-unified storage” for CNET which still rings true today. So what is the definition? According to SearchStorage “Unified storage”, is defined in the following way:-
“Unified storage (sometimes termed network unified storage or NUS) is a storage system that makes it possible to run and manage files and applications from a single device. To this end, a unified storage system consolidates file-based and block-based access in a single storage platform and supports fibre channel SAN, IP-based SAN (iSCSI), and NAS (network attached storage).”