TrueNAS SCALETrueNAS SCALE Nightly Development Documentation
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Application maintenance is independent from TrueNAS SCALE version release cycles. App versions, features, fields, and install behavior at the time of access might vary from those in documented tutorials, especially for legacy version documentation that no longer receives active updates.

We welcome community contributions to keep this documentation current! Click Edit Page in the top right corner to propose changes to this article. See Updating Content for more information.

This section has tutorials for using the MinIO apps available for TrueNAS SCALE.

SCALE has two version of the MinIO application. The community version of the S3 application available in the charts train of TRUENAS catalog application. The MinIO Enterprise version of the application is a smaller version of MinIO that is tested and polished for a safe and supportable experience for TrueNAS Enterprise customers. Community members can install either the Enterprise or community version.

Adding the MinIO (Enterprise) App

To add the Enterprise MinIO application to the list of available applications:

Go to Apps and click on Discover Apps.

Click on Manage Catalogs at the top of the Discover screen to open the Catalog screen.

Click on the TRUENAS catalog to expand it, then click Edit to open the Edit Catalog screen.

Click in the Preferred Trains field, click on enterprise to add it to the list of trains, and then click Save.

Both the charts and enterprise train versions of the MinIO app widget display on the Discover application screen.


MinIO High Performance Object Storage, released under the Apache Licenses v2.0 is an Open Source, Kubernetes Native, and Amazon S3 cloud storage compatible object storage solution. For more on MinIO, see MinIO Object Storage for Kubernetes.

The Minio applications, chart and enterprise train versions, allow users to build high performance infrastructure for machine learning, analytics, and application data workloads.

MinIO supports distributed mode. Distributed mode, allows pooling multiple drives, even on different systems, into a single object storage server. For information on configuring a distributed mode cluster in SCALE using MinIO, see Setting Up MinIO Clustering.

For information on installing and configuring MinIO Enterprise, see Installing MinIO Enterprise.

Installing MinIO (S3) Community App

The instructions in this section cover the basic requirements and instruction on how to install and configure the community MinIO application, charts train version. For instructions on installing the Enterprise version of the MinIO application see Configuring Enterprise MinIO.

First Steps

Before configuring MinIO, create a dataset and shared directory for the persistent MinIO data.

Go to Datasets and select the pool or dataset where you want to place the MinIO dataset. For example, /tank/apps/minio or /tank/minio. You can use either an existing pool or create a new one.

After creating the dataset, create the directory where MinIO stores information the application uses.

To create a directory, open the Linux CLI and enter mkdir path="/path/to/directory" or if you have a share created on your system with access to the dataset use it to create a directory.

MinIO uses /data but allows users to replace this with the directory of their choice.

Configuring MinIO (S3) Community App

To install the S3 MinIO (community app), go to Apps, click on Discover Apps, then either begin typing MinIO into the search field or scroll down to locate the charts version of the MinIO widget.

Click on the widget to open the MinIO application information screen.

Click Install to open the Install MinIO screen.

Accept the default values for Application Name and Version. The best practice is to keep the default Create new pods and then kill old ones in the MinIO update strategy. This implements a rolling upgrade strategy.

Next, enter the MinIO Configuration settings.

The MinIO application defaults include all the arguments you need to deploy a container for the application.

Enter a name in Root User to use as the MinIO access key. Enter a name of five to 20 characters in length, for example admin or admin1. Next enter the Root Password to use as the MinIO secret key. Enter eight to 40 random characters, for example MySecr3tPa$$w0d4Min10.

Refer to MinIO User Management for more information.

Keep all passwords and credentials secured and backed up.

MinIO containers use server port 9000. The MinIO Console communicates using port 9001.

You can configure the API and UI access node ports and the MinIO domain name if you have TLS configured for MinIO.

To store your MinIO container audit logs, select Enable Log Search API and enter the amount of storage you want to allocate to logging. The default is 5 disks.

Configure the storage volumes. Accept the default /export value in Mount Path. Click Add to the right of Extra Host Path Volumes to add a data volume for the dataset and directory you created above. Enter the /data directory in Mount Path in Pod and the dataset you created in the First Steps section in Host Path.

Add Host Path Volume
Figure 6: Add Host Path Volume

If you want to create volumes for postgres data and postgres backup, select Postgres Data Volume and/or Postgres Backup Volume to add the mount and host path fields for each. If not set, TrueNAS uses the defaults for each postgres-data and postgres-backup.

Accept the defaults in Advanced DNS Settings.

If you want to limit the CPU and memory resources available to the container, select Enable Pod resource limits then enter the new values for CPU and/or memory.

Click Install when finished entering the configuration settings.

The Installed applications screen displays showing the MinIO application in the Deploying state. It changes to Running when the application is ready to use.

MinIO App Installed
Figure 7: MinIO App Installed

Click Web Portal to open the MinIO sign-in screen.

MinIO Sign-In Screen
Figure 8: MinIO Sign-In Screen

Understanding MinIO App Settings

The following section provide more detailed explanations of the settings found in each section of the Install MinIO configuration screen.

Application Name

Accept the default value or enter a name in Application Name field. Accept the default version number in Version.

Workload Configuration

The MinIO Workload Configuration section includes the MinIO update strategy setting that sets how application updates occur.

MinIO Workload Configuration
Figure 9: MinIO Workload Configuration

Select Create new pods then kill old ones to implement a rolling update strategy where the existing container (pod) remains until the update completes, then it is removed. Select Kill existing pods before creating new ones to implement a recreate update strategy where you remove the existing container (pod) and then create a new one. The recommended option is to keep the default and use the the rolling update strategy.

MinIO Configuration

The MinIO Configuration section provides options to set up a cluster, add arguments, credentials, and environment variables to the deployment.

Select Enable Distributed Mode when setting up a cluster of SCALE systems in a distributed cluster.

MinIO in distributed mode allows you to pool multiple drives or TrueNAS SCALE systems (even if they are different machines) into a single object storage server for better data protection in the event of single or multiple node failures because MinIO distributes the drives across several nodes. For more information, see the Distributed MinIO Quickstart Guide.

To create a distributed cluster, click Add to show the Distributed MinIO Instance URI(s) fields for each TrueNAS system (node) IP addresses/host names to include in the cluster. Use the same order across all the nodes.

The app is preconfigured with arguments it needs to deploy a container. Do not enter the server and URL argument earlier versions of the app required.

MinIO Configuration Settings
Figure 11: MinIO Configuration Settings

Enter the name for the root user (MinIO access key) in Root User. Enter a name of five to 20 characters in length. For example admin or admin1. Next enter the root user password (MinIO secret key) in Root Password. Enter eight to 40 random characters. For example MySecr3tPa$$w0d4Min10.

You do not need to enter extra arguments or environment variables to configure the MinIO app.

Accept the default port settings in MinIO Service Configuration. Before changing ports, refer to Default Ports.

MinIO Port and LogSearch Settings
Figure 12: MinIO Port and LogSearch Settings

Select the optional Enable Log Search API to enable LogSearch API and configure MinIO to use this function. This deploys a postgres database to store the logs. Enabling this option displays the Disk Capacity in GB field. Use this to specify the storage in gigabytes the logs are allowed to occupy.


MinIO storage settings include the option to add mount paths and storage volumes to use inside the container (pod). There are three storage volumes, data, postgres data, and postgres backup. The data volume is the only required storage volume.

Accept the default /export value in Mount Path. Click Add to the right of Extra Host Path Volumes to add a data volume for the dataset and directory you created above. Enter the /data directory in Mount Path in Pod and the dataset you created in the First Steps section above in Host Path.

MinIO Add Storage Volumes
Figure 13: MinIO Add Storage Volumes

Of the three volume options, adding the data volume and directory are required. Adding postgres data volumes is optional.

Add Postgres Volumes
Figure 14: Add Postgres Volumes

To add host paths for postgress storage volumes, select Enable Host Path for Postgres Data Volume and/or Enable Host Path for Postgres Backup Volumes. SCALE default values for each of these postgres volumes are postgres-data and postgres-backup.

Advanced DNS

MinIO does not require configuring advanced DNS options. Accept the default settings or click Add to the right of DNS Options to show the Name and Value fields for a DNS option.

MinIO Advanced DNS Settings
Figure 15: MinIO Advanced DNS Settings

Resource Limits

By default, this application is limited to use no more than 4 CPU cores and 8 Gigabytes available memory. The application might use considerably less system resources.

MinIO Add CPU and Memory Limits
Figure 16: MinIO Add CPU and Memory Limits

To customize the CPU and memory allocated to the container (pod) the MinIO app uses, select Enable Pod resource limits. This adds the CPU Resource Limit and Memory Limit fields. Tune these limits as needed to prevent the application from overconsuming system resources and introducing performance issues.


  • Updating MinIO from 1.6.58: Provides information on updating MinIO from 1.6.58 to newer versions.

    • Setting Up MinIO Clustering: Provides configuration instructions using the MinIO Offical Charts application widget. It includes instructions on setting up a distributed cluster configuration.