Longhorn

https://longhorn.io/docs/1.9.1
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### Longhorn V2 Data Engine Quick Start

Source: https://longhorn.io/docs/1.9.1/v2-data-engine/quick-start

This section details the steps to get started with the V2 Data Engine in Longhorn, including prerequisites like kernel module configuration and environment checks, followed by the installation process and enabling the V2 Data Engine. It also covers CPU/memory usage and adding block-type disks to Longhorn nodes.

```markdown
## Prerequisites

### Configure Kernel Modules and Huge Pages

### Load `nvme-tcp` Kernel Module

### Load Kernel Modules Automatically on Boot

### Restart `kubelet`

### Check Environment

#### Using the Longhorn Command Line Tool

#### Use Longhorn Command Line Tool

## Installation

### Install Longhorn System

### Enable V2 Data Engine

### CPU and Memory Usage

### Add `block-type` Disks in Longhorn Nodes

#### Prepare disks

#### Add disks to `node.longhorn.io`
```

--------------------------------

### Longhorn V2 Data Engine (Experimental) - Prerequisites and Quick Start

Source: https://longhorn.io/docs/1.9.1/advanced-resources/cluster-restore

Information on setting up and getting started with the experimental V2 data engine in Longhorn, including prerequisites and a quick start guide.

```markdown
* [Prerequisites](https://longhorn.io/docs/1.9.1/v2-data-engine/prerequisites/)
* [Quick Start](https://longhorn.io/docs/1.9.1/v2-data-engine/quick-start/)
```

--------------------------------

### Longhorn Deployment Guides

Source: https://longhorn.io/docs/1.9.1/troubleshoot

Comprehensive guides for deploying Longhorn, covering quick installation, installation via Rancher Apps & Marketplace, Kubectl, Helm, Helm Controller, Fleet, Flux, ArgoCD, and air gap installations.

```markdown
[Deploy](https://longhorn.io/docs/1.9.1/deploy/)
[Quick Installation](https://longhorn.io/docs/1.9.1/deploy/install/)
  * [Install as a Rancher Apps & Marketplace](https://longhorn.io/docs/1.9.1/deploy/install/install-with-rancher/)
  * [Install with Kubectl](https://longhorn.io/docs/1.9.1/deploy/install/install-with-kubectl/)
  * [Install with Helm](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm/)
  * [Install with Helm Controller](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm-controller/)
  * [Install with Fleet](https://longhorn.io/docs/1.9.1/deploy/install/install-with-fleet/)
  * [Install with Flux](https://longhorn.io/docs/1.9.1/deploy/install/install-with-flux/)
  * [Install with ArgoCD](https://longhorn.io/docs/1.9.1/deploy/install/install-with-argocd/)
  * [Air Gap Installation](https://longhorn.io/docs/1.9.1/deploy/install/airgap/)
```

--------------------------------

### Longhorn v2 Data Engine (Experimental) - Prerequisites and Quick Start

Source: https://longhorn.io/docs/1.9.1/advanced-resources/data-cleanup

Information on the experimental v2 data engine for Longhorn, including prerequisites for setup and a quick start guide to get it running.

```markdown
* [Prerequisites](https://longhorn.io/docs/1.9.1/v2-data-engine/prerequisites/)
* [Quick Start](https://longhorn.io/docs/1.9.1/v2-data-engine/quick-start/)
```

--------------------------------

### V2 Data Engine Quick Start

Source: https://longhorn.io/docs/1.9.1/references/reference-setup-performance-scalability-and-sizing-guidelines

A quick start guide for setting up and using the experimental V2 Data Engine in Longhorn.

```markdown
[Quick Start](https://longhorn.io/docs/1.9.1/v2-data-engine/quick-start/)
```

--------------------------------

### Longhorn Deployment Options

Source: https://longhorn.io/docs/1.9.1/references/reference-setup-performance-scalability-and-sizing-guidelines

Guides for deploying Longhorn, including quick installation steps, installation via Rancher Apps & Marketplace, Kubectl, and Helm.

```markdown
[Deploy](https://longhorn.io/docs/1.9.1/deploy/)
[Quick Installation](https://longhorn.io/docs/1.9.1/deploy/install/)
  * [Install as a Rancher Apps & Marketplace](https://longhorn.io/docs/1.9.1/deploy/install/install-with-rancher/)
  * [Install with Kubectl](https://longhorn.io/docs/1.9.1/deploy/install/install-with-kubectl/)
  * [Install with Helm](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm/)
```

--------------------------------

### Longhorn Monitoring Setup and Metrics

Source: https://longhorn.io/docs/1.9.1/references/reference-setup-performance-scalability-and-sizing-guidelines

Guides for setting up Prometheus and Grafana for Longhorn monitoring, integrating with Rancher monitoring, understanding Longhorn metrics, Kubelet volume metrics, and alert rule examples.

```APIDOC
Monitoring: https://longhorn.io/docs/1.9.1/monitoring/
Setting up Prometheus and Grafana to monitor Longhorn: https://longhorn.io/docs/1.9.1/monitoring/prometheus-and-grafana-setup/
Integrating Longhorn metrics into the Rancher monitoring system: https://longhorn.io/docs/1.9.1/monitoring/integrating-with-rancher-monitoring/
Longhorn Metrics for Monitoring: https://longhorn.io/docs/1.9.1/monitoring/metrics/
Kubelet Volume Metrics Support: https://longhorn.io/docs/1.9.1/monitoring/kubelet-volume-metrics/
Longhorn Alert Rule Examples: https://longhorn.io/docs/1.9.1/monitoring/alert-rules-example/
```

--------------------------------

### Longhorn Setup, Performance, and Scalability

Source: https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm

This section provides guidelines for setting up Longhorn, optimizing performance, and understanding scalability limits. It also includes information on sizing considerations for Longhorn deployments.

```markdown
* [Reference Setup, Performance, Scalability, and Sizing Guidelines](https://longhorn.io/docs/1.9.1/references/reference-setup-performance-scalability-and-sizing-guidelines/)
```

--------------------------------

### Example Successful Longhorn Installation Pods

Source: https://longhorn.io/docs/1.9.1/deploy/install/install-with-flux

An example output showing the expected running pods after a successful Longhorn installation.

```text
NAME                                                READY   STATUS    RESTARTS   AGE
longhorn-ui-b7c844b49-w25g5                         1/1     Running   0          2m41s
longhorn-manager-pzgsp                              1/1     Running   0          2m41s
longhorn-driver-deployer-6bd59c9f76-lqczw           1/1     Running   0          2m41s
longhorn-csi-plugin-mbwqz                           2/2     Running   0          100s
csi-snapshotter-588457fcdf-22bqp                    1/1     Running   0          100s
csi-snapshotter-588457fcdf-2wd6g                    1/1     Running   0          100s
csi-provisioner-869bdc4b79-mzrwf                    1/1     Running   0          101s
csi-provisioner-869bdc4b79-klgfm                    1/1     Running   0          101s
csi-resizer-6d8cf5f99f-fd2ck                        1/1     Running   0          101s
csi-provisioner-869bdc4b79-j46rx                    1/1     Running   0          101s
csi-snapshotter-588457fcdf-bvjdt                    1/1     Running   0          100s
csi-resizer-6d8cf5f99f-68cw7                        1/1     Running   0          101s
csi-attacher-7bf4b7f996-df8v6                       1/1     Running   0          101s
csi-attacher-7bf4b7f996-g9cwc                       1/1     Running   0          101s
csi-attacher-7bf4b7f996-8l9sw                       1/1     Running   0          101s
csi-resizer-6d8cf5f99f-smdjw                        1/1     Running   0          101s
instance-manager-b34d5db1fe1e2d52bcfb308be3166cfc   1/1     Running   0          114s
engine-image-ei-df38d2e5-cv6nc                      1/1     Running   0          114s
```

--------------------------------

### Longhorn Installation Methods

Source: https://longhorn.io/docs/1.9.1/advanced-resources/backing-image

Guides for installing Longhorn, covering quick installation, installation via Rancher Apps & Marketplace, Kubectl, Helm, Helm Controller, Fleet, Flux, ArgoCD, and air gap installations.

```markdown
* [Install as a Rancher Apps & Marketplace](https://longhorn.io/docs/1.9.1/deploy/install/install-with-rancher/)
* [Install with Kubectl](https://longhorn.io/docs/1.9.1/deploy/install/install-with-kubectl/)
* [Install with Helm](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm/)
* [Install with Helm Controller](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm-controller/)
* [Install with Fleet](https://longhorn.io/docs/1.9.1/deploy/install/install-with-fleet/)
* [Install with Flux](https://longhorn.io/docs/1.9.1/deploy/install/install-with-flux/)
* [Install with ArgoCD](https://longhorn.io/docs/1.9.1/deploy/install/install-with-argocd/)
* [Air Gap Installation](https://longhorn.io/docs/1.9.1/deploy/install/airgap/)
```

--------------------------------

### Longhorn Installation Methods

Source: https://longhorn.io/docs/1.9.1/references/reference-setup-performance-scalability-and-sizing-guidelines

Guides for installing Longhorn using various methods including Helm Controller, Fleet, Flux, ArgoCD, and Air Gap installations.

```APIDOC
Install with Helm Controller: https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm-controller/
Install with Fleet: https://longhorn.io/docs/1.9.1/deploy/install/install-with-fleet/
Install with Flux: https://longhorn.io/docs/1.9.1/deploy/install/install-with-flux/
Install with ArgoCD: https://longhorn.io/docs/1.9.1/deploy/install/install-with-argocd/
Air Gap Installation: https://longhorn.io/docs/1.9.1/deploy/install/airgap/
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/v2-data-engine/quick-start

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Longhorn Deployment Guides

Source: https://longhorn.io/docs/1.9.1/references

Instructions for deploying Longhorn, covering quick installation methods such as installation via Rancher Apps & Marketplace, Kubectl, Helm, Helm Controller, Fleet, Flux, ArgoCD, and air gap installations.

```markdown
* [Install as a Rancher Apps & Marketplace](https://longhorn.io/docs/1.9.1/deploy/install/install-with-rancher/)
* [Install with Kubectl](https://longhorn.io/docs/1.9.1/deploy/install/install-with-kubectl/)
* [Install with Helm](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm/)
* [Install with Helm Controller](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm-controller/)
* [Install with Fleet](https://longhorn.io/docs/1.9.1/deploy/install/install-with-fleet/)
* [Install with Flux](https://longhorn.io/docs/1.9.1/deploy/install/install-with-flux/)
* [Install with ArgoCD](https://longhorn.io/docs/1.9.1/deploy/install/install-with-argocd/)
* [Air Gap Installation](https://longhorn.io/docs/1.9.1/deploy/install/airgap/)
```

--------------------------------

### V2 Data Engine Quick Start

Source: https://longhorn.io/docs/1.9.1/advanced-resources/system-backup-restore

A quick start guide to help users begin using the experimental V2 Data Engine. This provides essential steps for initial configuration and operation.

```APIDOC
V2 Data Engine Quick Start:
  Purpose: Provides a streamlined guide to get started with the V2 Data Engine.
  Steps:
    - Installation or enabling instructions.
    - Basic configuration steps.
    - Creating a test volume.
  Related Topics:
    - V2 Data Engine (Experimental)
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/v2-data-engine/troubleshooting

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/v2-data-engine

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Longhorn References and Guidelines

Source: https://longhorn.io/docs/1.9.1/references/reference-setup-performance-scalability-and-sizing-guidelines

References for Longhorn, including setup, performance, scalability, and sizing guidelines, as well as information on the Python client and networking.

```markdown
Reference Setup, Performance, Scalability, and Sizing Guidelines
[Edit this page](https://github.com/longhorn/website/edit/master/content/docs/1.9.1/references/reference-setup-performance-scalability-and-sizing-guidelines.md)
You can find the detailed report in the [Longhorn repository](https://github.com/longhorn/longhorn/tree/v1.9.1/scalability/reference-setup-performance-scalability-and-sizing-guidelines).
[Python Client](https://longhorn.io/docs/1.9.1/references/longhorn-client-python/) [Longhorn Networking ](https://longhorn.io/docs/1.9.1/references/networking/)
```

--------------------------------

### Longhorn Installation Methods

Source: https://longhorn.io/docs/1.9.1/advanced-resources

Guides for installing Longhorn, covering quick installation and various methods including Rancher Apps & Marketplace, Kubectl, Helm, Helm Controller, Fleet, Flux, ArgoCD, and air gap installations.

```markdown
* [Quick Installation](https://longhorn.io/docs/1.9.1/deploy/install/)
* [Install as a Rancher Apps & Marketplace](https://longhorn.io/docs/1.9.1/deploy/install/install-with-rancher/)
* [Install with Kubectl](https://longhorn.io/docs/1.9.1/deploy/install/install-with-kubectl/)
* [Install with Helm](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm/)
* [Install with Helm Controller](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm-controller/)
* [Install with Fleet](https://longhorn.io/docs/1.9.1/deploy/install/install-with-fleet/)
* [Install with Flux](https://longhorn.io/docs/1.9.1/deploy/install/install-with-flux/)
* [Install with ArgoCD](https://longhorn.io/docs/1.9.1/deploy/install/install-with-argocd/)
* [Air Gap Installation](https://longhorn.io/docs/1.9.1/deploy/install/airgap/)
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/v2-data-engine/prerequisites

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### V2 Data Engine Quick Start

Source: https://longhorn.io/docs/1.9.1/advanced-resources/support-managed-k8s-service/upgrade-k8s-on-gke

A quick start guide for setting up and using the experimental V2 Data Engine in Longhorn.

```markdown
[Quick Start](https://longhorn.io/docs/1.9.1/v2-data-engine/quick-start/)
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/v2-data-engine/features/selective-v2-data-engine-activation

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/v2-data-engine/features/configurable-cpu-cores

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Longhorn Installation Methods

Source: https://longhorn.io/docs/1.9.1/advanced-resources/data-cleanup

Guides for installing Longhorn, covering quick installation, installation via Rancher Apps & Marketplace, Kubectl, Helm, Helm Controller, Fleet, Flux, ArgoCD, and air gap installations.

```markdown
* [Quick Installation](https://longhorn.io/docs/1.9.1/deploy/install/)
* [Install as a Rancher Apps & Marketplace](https://longhorn.io/docs/1.9.1/deploy/install/install-with-rancher/)
* [Install with Kubectl](https://longhorn.io/docs/1.9.1/deploy/install/install-with-kubectl/)
* [Install with Helm](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm/)
* [Install with Helm Controller](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm-controller/)
* [Install with Fleet](https://longhorn.io/docs/1.9.1/deploy/install/install-with-fleet/)
* [Install with Flux](https://longhorn.io/docs/1.9.1/deploy/install/install-with-flux/)
* [Install with ArgoCD](https://longhorn.io/docs/1.9.1/deploy/install/install-with-argocd/)
* [Air Gap Installation](https://longhorn.io/docs/1.9.1/deploy/install/airgap/)
```

--------------------------------

### Longhorn Reference Setup Guidelines

Source: https://longhorn.io/docs/1.9.1/references/helm-values

Guidelines for setting up, performance tuning, scalability, and sizing of Longhorn deployments.

```APIDOC
Reference Setup, Performance, Scalability, and Sizing Guidelines:
  Provides best practices and recommendations for deploying and operating Longhorn.
  Covers aspects from initial setup to optimizing for performance and scale.
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/terminology

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/troubleshoot

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/snapshots-and-backups/setup-disaster-recovery-volumes

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/snapshots-and-backups/scheduling-backups-and-snapshots

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Longhorn Installation Methods

Source: https://longhorn.io/docs/1.9.1/advanced-resources/os-distro-specific

Guides for installing Longhorn, including quick installation, installation via Rancher Apps & Marketplace, Kubectl, Helm, Helm Controller, Fleet, Flux, ArgoCD, and air gap installations.

```markdown
* [Install as a Rancher Apps & Marketplace](https://longhorn.io/docs/1.9.1/deploy/install/install-with-rancher/)
* [Install with Kubectl](https://longhorn.io/docs/1.9.1/deploy/install/install-with-kubectl/)
* [Install with Helm](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm/)
* [Install with Helm Controller](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm-controller/)
* [Install with Fleet](https://longhorn.io/docs/1.9.1/deploy/install/install-with-fleet/)
* [Install with Flux](https://longhorn.io/docs/1.9.1/deploy/install/install-with-flux/)
* [Install with ArgoCD](https://longhorn.io/docs/1.9.1/deploy/install/install-with-argocd/)
* [Air Gap Installation](https://longhorn.io/docs/1.9.1/deploy/install/airgap/)
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/snapshots-and-backups/setup-a-snapshot

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Longhorn Installation Methods

Source: https://longhorn.io/docs/1.9.1/nodes-and-volumes

Guides for installing Longhorn, covering installation via Rancher Apps & Marketplace, Kubectl, Helm, Helm Controller, Fleet, Flux, ArgoCD, and air gap installations.

```markdown
[Deploy](https://longhorn.io/docs/1.9.1/deploy/)
[Quick Installation](https://longhorn.io/docs/1.9.1/deploy/install/)
  * [Install as a Rancher Apps & Marketplace](https://longhorn.io/docs/1.9.1/deploy/install/install-with-rancher/)
  * [Install with Kubectl](https://longhorn.io/docs/1.9.1/deploy/install/install-with-kubectl/)
  * [Install with Helm](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm/)
  * [Install with Helm Controller](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm-controller/)
  * [Install with Fleet](https://longhorn.io/docs/1.9.1/deploy/install/install-with-fleet/)
  * [Install with Flux](https://longhorn.io/docs/1.9.1/deploy/install/install-with-flux/)
  * [Install with ArgoCD](https://longhorn.io/docs/1.9.1/deploy/install/install-with-argocd/)
  * [Air Gap Installation](https://longhorn.io/docs/1.9.1/deploy/install/airgap/)
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/snapshots-and-backups/backup-and-restore/set-backup-target

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Longhorn Examples

Source: https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm

This section provides practical examples and use cases for Longhorn, demonstrating various functionalities and deployment scenarios.

```markdown
* [Examples](https://longhorn.io/docs/1.9.1/references/examples/)
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/snapshots-and-backups/csi-snapshot-support/enable-csi-snapshot-support

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Install longhornctl

Source: https://longhorn.io/docs/1.9.1/snapshots-and-backups/setup-a-snapshot

Instructions for installing the Longhorn command-line tool, longhornctl.

```markdown
[Install longhornctl](https://longhorn.io/docs/1.9.1/advanced-resources/longhornctl/install-longhornctl/)
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/snapshots-and-backups/csi-snapshot-support/csi-volume-snapshot-associated-with-longhorn-snapshot

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Longhorn Deployment Options

Source: https://longhorn.io/docs/1.9.1/v2-data-engine

Guides for deploying Longhorn, covering quick installation and various methods including Rancher Apps & Marketplace, Kubectl, Helm, Helm Controller, Fleet, Flux, ArgoCD, and air gap installations.

```markdown
* [Install as a Rancher Apps & Marketplace](https://longhorn.io/docs/1.9.1/deploy/install/install-with-rancher/)
* [Install with Kubectl](https://longhorn.io/docs/1.9.1/deploy/install/install-with-kubectl/)
* [Install with Helm](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm/)
* [Install with Helm Controller](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm-controller/)
* [Install with Fleet](https://longhorn.io/docs/1.9.1/deploy/install/install-with-fleet/)
* [Install with Flux](https://longhorn.io/docs/1.9.1/deploy/install/install-with-flux/)
* [Install with ArgoCD](https://longhorn.io/docs/1.9.1/deploy/install/install-with-argocd/)
* [Air Gap Installation](https://longhorn.io/docs/1.9.1/deploy/install/airgap/)
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/snapshots-and-backups/csi-snapshot-support/csi-volume-snapshot-associated-with-longhorn-backup

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Longhorn Setup, Performance, Scalability, and Sizing Guidelines

Source: https://longhorn.io/docs/1.9.1/advanced-resources/support-managed-k8s-service/upgrade-k8s-on-eks

Provides guidelines and best practices for setting up, optimizing performance, ensuring scalability, and sizing Longhorn deployments.

```markdown
[Reference Setup, Performance, Scalability, and Sizing Guidelines](https://longhorn.io/docs/1.9.1/references/reference-setup-performance-scalability-and-sizing-guidelines/)
```

--------------------------------

### Longhorn Installation Methods

Source: https://longhorn.io/docs/1.9.1/monitoring

Guides for installing Longhorn using various methods including Rancher Apps & Marketplace, Kubectl, Helm, Helm Controller, Fleet, and Flux.

```markdown
* [Install as a Rancher Apps & Marketplace](https://longhorn.io/docs/1.9.1/deploy/install/install-with-rancher/)
* [Install with Kubectl](https://longhorn.io/docs/1.9.1/deploy/install/install-with-kubectl/)
* [Install with Helm](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm/)
* [Install with Helm Controller](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm-controller/)
* [Install with Fleet](https://longhorn.io/docs/1.9.1/deploy/install/install-with-fleet/)
* [Install with Flux](https://longhorn.io/docs/1.9.1/deploy/install/install-with-flux/)
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/snapshots-and-backups/backup-and-restore/restore-statefulset

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/snapshots-and-backups/backup-and-restore/synchronize_backup_volumes_manually

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Longhorn Installation Methods

Source: https://longhorn.io/docs/1.9.1/advanced-resources/backing-image/backing-image

Provides a list of various methods for installing Longhorn, including using Rancher, Kubectl, Helm, and GitOps tools like Fleet and ArgoCD.

```en
Install as a Rancher Apps & Marketplace
Install with Kubectl
Install with Helm
Install with Helm Controller
Install with Fleet
Install with Flux
Install with ArgoCD
Air Gap Installation
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/snapshots-and-backups/backup-and-restore/restore-recurring-jobs-from-a-backup

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### V2 Data Engine Quick Start

Source: https://longhorn.io/docs/1.9.1/advanced-resources/os-distro-specific

A quick start guide for setting up and using the experimental V2 Data Engine in Longhorn. This provides a basic introduction to its functionality.

```markdown
[Quick Start](https://longhorn.io/docs/1.9.1/v2-data-engine/quick-start/)
```

--------------------------------

### V2 Data Engine (Experimental)

Source: https://longhorn.io/docs/1.9.1/snapshots-and-backups/setup-a-snapshot

Information and guides for the experimental V2 Data Engine in Longhorn, including prerequisites and a quick start.

```markdown
[Prerequisites](https://longhorn.io/docs/1.9.1/v2-data-engine/prerequisites/)
```

```markdown
[Quick Start](https://longhorn.io/docs/1.9.1/v2-data-engine/quick-start/)
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/references/networking

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Longhorn Installation Methods

Source: https://longhorn.io/docs/1.9.1/snapshots-and-backups/backup-and-restore/restore-from-a-backup

Guides for installing Longhorn using various methods including Rancher Apps, Kubectl, Helm, Helm Controller, Fleet, Flux, ArgoCD, and air gap installations.

```APIDOC
Install Longhorn:
  Methods:
    - Rancher Apps & Marketplace: Install Longhorn as an application within Rancher.
    - Kubectl: Deploy Longhorn using kubectl commands.
    - Helm: Install Longhorn using Helm charts.
    - Helm Controller: Deploy Longhorn using the Helm Controller.
    - Fleet: Manage Longhorn deployments with Fleet.
    - Flux: Integrate Longhorn deployment with Flux CD.
    - ArgoCD: Deploy Longhorn using ArgoCD.
    - Air Gap Installation: Instructions for installing Longhorn in environments without internet access.
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/snapshots-and-backups/backup-and-restore/create-a-backup

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/references

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Longhorn Installation Methods

Source: https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm-controller

Links to documentation for installing Longhorn using Helm and Fleet.

```markdown
[Install with Helm](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm/) [Install with Fleet ](https://longhorn.io/docs/1.9.1/deploy/install/install-with-fleet/)
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/nodes-and-volumes/volumes/trim-filesystem

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Longhorn Installation Methods

Source: https://longhorn.io/docs/1.9.1/snapshots-and-backups

Guides for installing Longhorn using various methods, including Rancher Apps & Marketplace, Kubectl, Helm, Helm Controller, Fleet, Flux, ArgoCD, and air gap installations.

```markdown
* [Install as a Rancher Apps & Marketplace](https://longhorn.io/docs/1.9.1/deploy/install/install-with-rancher/)
* [Install with Kubectl](https://longhorn.io/docs/1.9.1/deploy/install/install-with-kubectl/)
* [Install with Helm](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm/)
* [Install with Helm Controller](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm-controller/)
* [Install with Fleet](https://longhorn.io/docs/1.9.1/deploy/install/install-with-fleet/)
* [Install with Flux](https://longhorn.io/docs/1.9.1/deploy/install/install-with-flux/)
* [Install with ArgoCD](https://longhorn.io/docs/1.9.1/deploy/install/install-with-argocd/)
* [Air Gap Installation](https://longhorn.io/docs/1.9.1/deploy/install/airgap/)
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/nodes-and-volumes

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/references/reference-setup-performance-scalability-and-sizing-guidelines

Guide for installing Longhorn using Helm. This approach simplifies dependency management and configuration.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/nodes-and-volumes/volumes

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Longhorn Installation Methods

Source: https://longhorn.io/docs/1.9.1/advanced-resources/driver-migration

Guides for installing Longhorn using various methods, including Rancher Apps & Marketplace, Kubectl, Helm, Helm Controller, Fleet, Flux, ArgoCD, and air-gapped installations.

```markdown
* [Install as a Rancher Apps & Marketplace](https://longhorn.io/docs/1.9.1/deploy/install/install-with-rancher/)
* [Install with Kubectl](https://longhorn.io/docs/1.9.1/deploy/install/install-with-kubectl/)
* [Install with Helm](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm/)
* [Install with Helm Controller](https://longhorn.io/docs/1.9.1/deploy/install/install-with-helm-controller/)
* [Install with Fleet](https://longhorn.io/docs/1.9.1/deploy/install/install-with-fleet/)
* [Install with Flux](https://longhorn.io/docs/1.9.1/deploy/install/install-with-flux/)
* [Install with ArgoCD](https://longhorn.io/docs/1.9.1/deploy/install/install-with-argocd/)
* [Air Gap Installation](https://longhorn.io/docs/1.9.1/deploy/install/airgap/)
```

--------------------------------

### Longhorn Installation Methods

Source: https://longhorn.io/docs/1.9.1/snapshots-and-backups/csi-snapshot-support/csi-volume-snapshot-associated-with-longhorn-backing-image

Guides for installing Longhorn using various methods including Rancher Apps, Kubectl, Helm, Helm Controller, Fleet, Flux, ArgoCD, and air gap installations.

```APIDOC
Install Longhorn:
  Methods:
    - Rancher Apps & Marketplace: Install Longhorn as an application within Rancher.
    - Kubectl: Deploy Longhorn using kubectl commands.
    - Helm: Install Longhorn using Helm charts.
    - Helm Controller: Deploy Longhorn using the Helm Controller.
    - Fleet: Manage Longhorn deployments with Fleet.
    - Flux: Integrate Longhorn deployment with Flux CD.
    - ArgoCD: Deploy Longhorn using ArgoCD.
    - Air Gap Installation: Instructions for installing Longhorn in environments without internet access.
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/nodes-and-volumes/volumes/rwx-volumes

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```

--------------------------------

### Install Longhorn with Helm

Source: https://longhorn.io/docs/1.9.1/nodes-and-volumes/volumes/delete-volumes

Guide to installing Longhorn using Helm. This method requires Helm to be installed and configured.

```bash
helm repo add longhorn https://charts.longhorn.io
helm repo update
helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace
```
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