---
title: "What is concept of storing data in HDFS"  
description: "What is concept of storing data in HDFS"  
author: "Samuel Fernandes"  
published: 2016-08-29  
updated: 2020-09-20  
canonical: https://www.mindstick.com/interview/23035/what-is-concept-of-storing-data-in-hdfs  
category: "hadoop"  
tags: ["hadoop"]  
reading_time: 1 minute  

---

# What is concept of storing data in HDFS

This concept of storing a file as a set of blocks is very consistent with how a normal file systems work. But what the different about HDFS is the scale. A **typical block size** that we would see in a file system under Linux is 4KB, whereas a typical block size in Hadoop is 128MB. This value is configurable, and it can be customized, as both a new system default and a custom value for individual files.

## Answers

### Answer by Samuel Fernandes

This concept of storing a file as a set of blocks is very consistent with how a normal file systems work. But what the different about HDFS is the scale. A **typical block size** that we would see in a file system under Linux is 4KB, whereas a typical block size in Hadoop is 128MB. This value is configurable, and it can be customized, as both a new system default and a custom value for individual files.


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Original Source: https://www.mindstick.com/interview/23035/what-is-concept-of-storing-data-in-hdfs

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