Compare RIAD, Replication and Erasure Code in Data Protection

Subject Areas : Computer Engineering

Fattah  Tavakkoli Nia ¹ (student of azad university in iran)

Received: 2023-01-05 Accepted : 2023-03-04 Published : 2023-01-01

Keywords: replica, Replication, Data Protection, Data Engineering, RAID, Erasure Code,

Abstract :

Data Protection is all about prevent data lost or ability to restoring data in a certain time. It is really important to have a fault tolerance system that insure data lost would not happen. Some of these systems are RAID, Replication and Erasure Code. RIAD is a set of disks combined to represent as a logical disk. It has multiple levels that most of them copy data in some way that if a disk failed you don not loose any data. But RAID purpose is not necessarily duplicating data. Replication is a process of copying and storing data in different locations to improve data availability and accessibility across a network. It is a key component of disaster recovery. Data backup plan should be scheduled and periodically to have best restore point in case of a failure. Erasure Code is another method of Data Protection that is has some similarity to RAID. Erasure Code break data into fragments, expand and encode them with redundant data pieces and store data across a set of different locations or storage media.