What are the differences between NAS and DAS in Hadoop?

Answer»

The DIFFERENCE between NAS and DAS is as follows:

NAS	DAS
NAS stand for Network Attached Storage	DAS stands for DIRECT Attached Storage
Storage capacity of NAS is between 109 to 1012 in byte.	Storage capacity of DAS is 109 in byte.
In NAS, Storage is distributed over distinct servers on a network	In DAS, storage is attached to the node where computation process is taking place.
It has MODERATE storage management cost	It has HIGH storage management cost
Data transmission takes place using Ethernet or TCP/IP.	Data transmission takes place using IDE/ SCSI

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