Connecting to and using an iSCSI share can differ between operating systems.

This article provides instructions on setting up a Linux and Windows system to use the TrueNAS iSCSI block share.

In this section, you start the iSCSI service, log in to the share, and obtain the configured basename and target. You also partition the iSCSI disk, make a file system for the share, mount it, and share data.

TrueNAS lets users expand Zvol and file-based LUNs to increase the available storage in an iSCSI share.

To expand a Zvol LUN, go to Datasets and click the Zvol LUN name. The Zvol Details widget displays. Click the Edit button.

Users of TrueNAS 24.04 (Dragonfish) or newer can migrate data from a third-party NAS solution onto TrueNAS using the Syncthing Enterprise application. The Syncthing Enterprise application can mount remote SMB shares in a manner that preserves relevant metadata. TrueNAS 24.10 (Electric Eel) also adds migration support for SMB alternate data streams (ADS), used to store application-specific metadata.

TrueNAS Enterprise

Third-party data ingest is available to TrueNAS Enterprise customers with TrueNAS 24.04 (Dragonfish) and newer deployed, as well as the appropriate applications license. TrueNAS Enterprise Support staff are available to assist with deploying the Syncthing Enterprise Application and migrating data. Please contact TrueNAS Enterprise Support to learn more and schedule a time to deploy the app and begin migration.

If you have not added iSCSI shares to the system, the iSCSI widget shows text stating general information about the block (iSCSI) share targets until a share is added.

If you have not added NFS shares to the system, the NFS widget shows text stating general information about the Unix (NFS) shares until a share is added.

After setting up storage on your TrueNAS, it is time to begin sharing data! There are several sharing solutions available in TrueNAS, but in this article we discuss the options to create the share and dataset from the Shares screens.

TrueNAS provides three types of sharing methods:

TrueNAS Enterprise

Fibre Channel is a TrueNAS Enterprise feature. Only TrueNAS systems licensed for Fibre Channel show iSCSI Fibre Channel screens and settings found by going to Sharing > Block Shares (iSCSI).

Enterprise systems with fibre channel hardware can access fibre channel settings and screens through various iSCSI wizard and share screens.

The Block (iSCSI) Shares Targets widget shows iSCSI shares configured for fibre channels. The Wizard button on the header opens the Wizard iSCSI wizard on the Target screen. See Target Screens - Fibre Channel below.

WebShare provides web-based file access to authorized users through a browser interface. Unlike SMB or NFS shares that require mounting on client systems, WebShare allows users to browse, upload, download, and search files directly from a web browser.

WebShare requires TrueNAS Connect to be configured and active.

The WebShare widget displays Open WebShare and Add buttons, and a more_vert icon for accessing service options. Each configured WebShare displays as a row showing the share name, path, and action icons to open the share in a new browser tab, edit the share, or delete the share.

Since the Apple Filing Protocol (AFP) for shares is deprecated and no longer receives updates, it is not present in TrueNAS.

Click Shares on the main navigation panel to open the Sharing screen, which displays options to access SMB, NFS, iSCSI, and NVMe-oF shares.