Compare the main differences between HDFS (Hadoop Distributed File Sys

Compare the main differences between HDFS (Hadoop Distributed File System ) and Network Attached Storage(NAS) ?

Answer»

HDFS	NAS
HDFS is a Distributed File SYSTEM that is mainly used to store data by COMMODITY hardware.	NAS is a file-level computer data storage server CONNECTED to a computer network that PROVIDES network access to a heterogeneous group of clients.
HDFS is programmed to work with the MapReduce paradigm.	NAS is not suitable to work with a MapReduce paradigm.
HDFS is Cost-effective.	NAS is a high-end storage device that is highly expensive.