What Is Persistent Storage?

File Manager

Have you ever heard the time period persistent storage and questioned what meaning? The idea just isn’t that obscure.

Quick Answer

Persistent storage is a system that retains knowledge saved even after its energy is turned off. It’s additionally referred to as nonvolatile storage at occasions. Persistent storage is required for us to have the ability to retailer all our obligatory recordsdata and knowledge for future use.

We have created an in depth information with all data you would possibly want about persistent storage.

Table of Contents

  1. What Is Persistent Storage?
  2. Types of Persistent Storage
    • Type #1: Persistent Storage in Containerization
    • Type #2: Persistent Storage in Kubernetes
  3. Advantages of Persistent Storage
    • Advantage #1: Flexibility
    • Advantage #2: Cost-Effectiveness
    • Advantage #3: Portability
    • Advantage #4: Security
    • Advantage #5: Efficiency
    • Advantage #6: Simplicity
  4. What Is Non-Persistent Storage?
  5. Summary
  6. Frequently Asked Questions

What Is Persistent Storage?

Persistent storage is storage that retains the information saved in itself even when the system is turned off. It is a basic part of any storage system, whether or not shared or networked, single drive, or cloud storage.

Magnetic media, together with onerous disc drives, tapes, and varied optical media, together with DVDs, are a number of the hottest kinds of persistent storage and use recordsdata, blocks, or objects to avoid wasting knowledge in an organized format.

Types of Persistent Storage

There are two kinds of persistent storage primarily based on the information they retailer, described as follows.

Type #1: Persistent Storage in Containerization

Containerization is a well-liked technique of packaging software program and working programs into moveable, remoted modules constructed and destroyed as incessantly as wanted.

At first, containers didn’t help persistent storage, which meant all the information produced by a containerized app would vanish as soon as the app completed working, and the container was destroyed afterward.

However, in recent times, software program and storage suppliers have developed strategies to avoid wasting the information produced by container functions and preserve it safe in well-known storage volumes. Retaining these transient storage volumes is an issue that’s resolved with the usage of persistence storage.

Type #2: Persistent Storage in Kubernetes

Kubernetes is especially an open-source container orchestration framework. In a cloud/cluster atmosphere, it gives the administration and repair capabilities wanted to deploy, run, and develop containers successfully.

The key advantage of Kubernetes storage is that it allows storage directors to handle varied kinds of persistent and non-persistent knowledge in a Kubernetes cluster. In addition, it permits them to develop dynamic storage assets that help totally different software varieties.

If adequately managed, Kubernetes storage could also be used to routinely provision the very best storage to varied functions at a low administrative price.

Advantages of Persistent Storage

Persistent storage has supplied us varied advantages, as acknowledged under.

Advantage #1: Flexibility

Unlike conventional storage, persistent storage provides you a lot extra freedom and lets you make the most of the identical software program throughout many digital machines, clouds, and containers. Additionally, it provides builders the freedom to pick out the very best storage interface for his or her workload amongst file, block, or object storage.

Moreover, it allows builders to provide knowledge providers utilizing a single system, no matter protocol, growing productiveness, offering extra freedom, and growing extra profitable functions.

Advantage #2: Cost-Effectiveness

Using persistent storage, you solely have to pay for the storage and computation you make the most of, because it grows and shrinks routinely as you add and take away recordsdata, per your wants, with out disruption.

Advantage #3: Portability

In right now’s cloud-native atmosphere, organizations have to undertake a hybrid cloud technique to mix the benefits of public and on-premises clouds. With persistent storage, stateless apps and knowledge will be simply moved between varied clouds.

Advantage #4: Security

To safeguard them towards any sort of knowledge loss and safety breaches, persistent storage complies with the safety wants of most companies by way of volume-level encryption, self-encrypting discs, and key administration, amongst different options.

Advantage #5: Efficiency

The effectivity of software improvement is considerably elevated by persistent storage. It dispenses the necessity to rewrite apps when transferring them from one cloud supplier to a different, and you may relocate functions everytime you need with out spending cash or time on rewrites.

Advantage #6: Simplicity

Developers can provision their storage with persistent storage while not having to be storage specialists, permitting easy quantity provisioning for each public cloud and on-premise providers.

What Is Non-Persistent Storage?

Data that will be deleted when a container, employee node, or cluster is eliminated is saved in non-persistent storage. Non-persistent storage is incessantly used for logging knowledge, together with system logs and container logs, improvement testing, or when it’s worthwhile to retrieve knowledge from the host’s file system.


In this information, we’ve mentioned what persistent storage is intimately. We’ve additionally mentioned the kinds of persistent storage, their benefits, and the definition of Non-persistent storage.

Hopefully, with the assistance of this text, you’ve realized all the things it’s worthwhile to learn about persistent storage.

Frequently Asked Questions

Is RAM persistent storage?

Some types of solid-state storage, most notably the RAM and cache chips, are sometimes non-persistent (unstable) storage gadgets. The knowledge they include is wiped when the gadgets’ common energy provide is turned off.

What is supposed by persistent knowledge?

Persistence is outlined because the continuation of an impact after its trigger is eliminated. It signifies that knowledge continues to exist after its creation course of has been concluded.

Leave a Reply

Your email address will not be published. Required fields are marked *