storage vs real storage

storage and real storage both are nouns.

Word	Noun	Adjective	Verb	Adverb
storage	Yes	No	No	No
real storage	Yes	No	No	No

As nouns, real storage is a hyponym of storage; that is, real storage is a word with a more specific, narrower meaning than storage:

storage (noun)	real storage (noun)
the commercial enterprise of storing goods and materials	the main memory in a virtual memory system
the act of storing something
depositing in a warehouse
a depository for goods
an electronic memory device
(computer science) the process of storing information in a computer memory or on a magnetic tape or disk