What is Persistence? Persistence is "the continuance of an effect after its cause is removed".In the context of storing data in a computer system,this means that the data survives after the process with which it was created has ended.In other words,for a data store to be considered persistent,it must write to non- volatile storage. 2What is Persistence? Persistence is “the continuance of an effect after its cause is removed”. In the context of storing data in a computer system, this means that the data survives after the process with which it was created has ended. In other words, for a data store to be considered persistent, it must write to non￾volatile storage. 2