Data replication and data backup may sound similar, but this is a common misconception. While, in an emergency, data replication could serve as a backup, this is not its main purpose.
The backup of data is the creation of a copy of it and then transferring the copy to a completely different source, to ensure that a current copy of the data exists and that if something happens to the main server where the original is stored, it will be possible to recover the losses. Data backup can be done during various stages, including at regular backup times or while the data is being worked with, in order to ensure that a permanent copy of it is saved in a separate place and can be accessed there if necessary.
Through data replication, on the other hand, data is copied and then moved between servers and different storage places, allowing users to access the same constantly-updating replicas of the data through their devices all at the same time. While replicated data can serve as a backup option as well, the purpose of data replication is not to provide a secure copy, but rather to distribute the data across a company, allowing different servers to store and access the information.
The prompt recovery of current data is possible through replication because the replica is updated simultaneously with the original. In contrast, data backup offers a static copy of some version of the original, stored somewhere where nothing can affect it. The two processes serve different needs and can be performed without affecting each other. If a company wants to secure its data while providing it in different locations, then it can benefit from both backup and replication, to ensure both the full protection and accessibility of its information. Different data replication software services also allow for varieties of backups for replicated data.