What is the role of File System ?

[DataFlair Team]

• In order to manage data on computer, one has to interact with the File System directly or indirectly.
• When we install Hadoop on our computer, actually there are two file system exists on machine
  (1) Local File System , 
  (2) HDFS (Hadoop Distributed File System)
• HDFS is sits top on of Local File System.

Following are the genera functions of File System (be it Local or HDFS)

• Control the data access mechanism (i.e how data stored and retrived)
• Manages the metadata about the Files / Folders (i.e. created date, size etc)
• Grants the access permission and manage the securities
• Efficiently manage the storage space

For more details, please follow: HDFS

[DataFlair Team]

• File system manages user data that is how data is read, write and accessed.
• FS is the structure behind how our system stores and organizes data.
• FS stores all the information bout the file (metadata) like file name, the length of the contents of a file, and the location of the file in the folder hierarchy—separate from the contents of the file.
• The main role of FS is to make sure that what/whoever is accessing the data and whatever action is taken the structure remains consistent.

For more details, please follow: HDFS

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