Configuring SED Settings
2 minute read.
Advanced settings have reasonable defaults in place. A warning message displays for some settings advising of the dangers of making changes. Changing advanced settings can be dangerous when done incorrectly. Use caution before saving changes.
Make sure you are comfortable with ZFS, Linux, and system configuration, backup, and restoration before making any changes.
TrueNAS Enterprise
UI management of Self-Encrypting Drives (SED) is an Enterprise-licensed feature in TrueNAS 25.04 (and later) that requires an active SED license. SED configuration options are not visible in the TrueNAS Community Edition. Community users wishing to implement SEDs can continue to do so using the command line sedutil-cli utility.
To configure global SED settings, go to the System > Advanced Settings screen and locate the Self-Encrypting Drive card.
Click Configure to open the Self-Encrypting Drive configuration screen.
Enter the global SED password in SED Password and in Confirm SED Password.
Click Save.
Remember SED passwords! If you lose the SED password, you cannot unlock SEDs or access their data. After configuring or modifying SED passwords, always record and store them in a secure location!
To configure individual, per-disk SED passwords, go to Storage and click Disks in the top right of the screen to open the Disks screen. Click the row or for a confirmed SED to expand the row. Click Edit to open the Edit Disk screen.
Enter the password in the SED Password to assign an individual SED password. If both an individual and global SED password are present, the individual SED password overrides the global password for the disk it is configured on.
Select Clear SED Password to clear the existing password, and click Save. Reopen the Edit Disk screen to enter and save a new password.
Repeat this process for each SED and any SEDs added to the system in the future.
See Managing Self-Encrypting Drives (SED) for more information.