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Enterprise-grade storage appliances designed for business and mission-critical environments.

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Test Drive TrueNAS in Your Environment.

Advanced Settings Screen

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.

The Advanced Settings screen provides configuration options for the console, syslog, audit, kernel, sysctl, storage (system dataset pool), replication, WebSocket sessions, cron jobs, init/shutdown scripts, allowed IP addresses, isolated GPU device(s), self-encrypting drives, and global two-factor authentication.

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Managing Self-Encrypting Drives (SED)

TrueNAS Enterprise

UI management of Self-Encrypting Drives (SED) is an Enterprise-licensed feature in TrueNAS 25.04 (and later). 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.

Note: Additional changes to SED management options in the TrueNAS UI ahead of the 25.04.0 release version, with documentation updates to follow.

Supported Specifications

  • Legacy interface for older ATA devices (Not recommended for security-critical environments!)
  • TCG Opal 1 legacy specification
  • TCG Opal 2 standard for newer consumer-grade devices
  • TCG Opalite which is a reduced form of OPAL 2
  • TCG Pyrite Version 1 and Version 2 are similar to Opalite, but with hardware encryption removed Pyrite provides a logical equivalent of the legacy ATA security for non-ATA devices. Only the drive firmware protects the device.
    Pyrite Version 1 SEDs do not have PSID support and can become unusable if the password is lost.
  • TCG Enterprise designed for systems with many data disks. These SEDs cannot unlock before the operating system boots.
  • TCG Ruby 1.0

See this Trusted Computing Group and NVM Express® joint white paper for more details about these specifications.

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4 minutes to read disks sed

Configuring SED Settings

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). 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.

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