1, large capacity: the amount of data is huge, jumping from the terabyte level to the petabyte level.

2, many types: data types are diverse, including structured data, unstructured data, streaming data, etc..

3, fast access speed: data generation and processing is very fast, requiring efficient storage and query technology.

4, high application value: big data contains great potential and value, through analysis and mining can create great value for enterprises and society.