To access SMB share management options, go to Shares and locate the Windows (SMB) Shares widget. The widget lists configured SMB shares, but it is not the complete list. To see a complete list of shares, click on Windows (SMB) Shares launch header to open the Shares > SMB screen. The more_vert dropdown list to the right of each share shows four options that open other screens or dialogs that provide access to share settings.

TrueNAS and ZFS by default can support large numbers of files. Per directory this can grow to 281+ trillion and per file system there is no upper limit. However, these are theoritical limits, and there are host and client side practical limits dealing with large quantity of files. Specifically when it comes to how fast you can list or “enumerate” them.

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

TrueNAS provides the option to configure network interfaces using either IPv4 or IPv6 addresses. IPv4 networks cannot see or communicate with an IPv6 website or network unless a gateway or some other implementation is configured to allow it. See Understanding IPv6 for more information.

After configuring your network infrastructure for IPv6, assign the IP addresses for your TrueNAS system. Use the TrueNAS UI to configure your network settings. If setting TrueNAS up for the first time after a clean install, use the Console Setup menu to enter IPv6 addresses.

TrueNAS automatically enables shadow copies for SMB shares, exporting ZFS snapshots as Shadow Copies for Microsoft clients.

Shadow Copies, also known as the Volume Shadow Copy Service (VSS) or Previous Versions, is a Microsoft service for creating volume snapshots. You can use shadow copies to restore previous versions of files from within Windows Explorer.

SMB Home Share is a legacy feature for organizations looking to maintain existing SMB configurations. TrueNAS removed the home share option from the SMB share Purpose list in 24.04 (Dragonfish). The SMB share Other Options in pre-25.10 releases includes a home share legacy option, but it is not recommended for new shares. It is for organizations still using the legacy home shares option to add a single SMB share to provide a personal directory for every user account. Future TrueNAS releases can introduce instability or require configuration changes affecting this legacy feature. This option does not show in 25.10 and later releases unless an existing home share is upgraded to 25.10 or later.

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.

The Services > SMB screen displays after going to the Shares screen, finding the Windows (SMB) Shares section, and clicking more_vert + Config Service. Alternatively, you can go to System > Services and click the edit edit icon for the SMB service.

The SMB Services screen displays setting options to configure TrueNAS SMB settings to fit your use case. In most cases, you can set the required fields and accept the rest of the setting defaults. If you have specific needs for your use case, click Advanced Options to display more settings.