The intention of this paper is to evoke discussion rather than to provide an experiential extensive survey of big data research. The Big data is not a single technology but an amalgamation of old and new technologies that assistance companies gain actionable awareness. The big data are vital because it empowers organizations to congregate, store, manage, and manipulate countless amounts data at the pertinent speed, at the pertinent time, to gain the pertinent intuition. Eventually big data solutions and practices are typically essential when eternal data processing, analysis and storage technologies and techniques are inadequate. In particular, big data addresses detached requirements, in other words the amalgamate of multiple un-associated datasets, processing of huge amounts of amorphous data and harvesting of unseen information in a time-sensitive genre. In this paper, aimed to demonstrate a close-up view about big data, including big data concepts, security, privacy, data storage, data processing, and data analysis of these technological developments, we also brief description about the characteristic of big data, big data techniques, technologies and tools emphasizes critical points on these issues.

datasets, big data, differential privacy, anonymization, diagnostic analytics, data storage