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Contact an Enterprise SpecialistTrueNAS CORE Nightly Development Documentation
This content follows experimental early release software. Pre-release software is intended for testing purposes only.
Use the Product and Version selectors above to view content specific to a stable software release.
Advanced
3 minute read.
System > Advanced contains advanced options for configuring system settings.
These options have reasonable defaults in place. Make sure you are comfortable with ZFS, FreeBSD, and system configuration backup and restoration before making any changes.
Console
| Name | Description |
|---|---|
| Show Text Console without Password Prompt | Unset to add a login prompt to the system before the console menu is shown. |
| Enable Serial Console | Do not set this if the Serial Port is disabled. Serial Port and Serial Speed show when this is set. |
| Serial Port | When Enable Serial Console is set, the available serial port hex addresses are 0x2F8 or 0x3f8. |
| Serial Speeds | When Enable Serial Console is set, the available serial speeds the serial port can use are 9600 bps, 19200 bps, 38400 bps, 57600 bps, or 115200bps. |
| MOTD Banner | The message to show when a user logs in with SSH. |
Storage
| Name | Description |
|---|---|
| Swap Size in GiB | (CORE only) By default, all data disks are created with the amount of swap specified. Changing the value does not affect the amount of swap on existing disks, only disks added after the change. Does not affect log or cache devices as they are created without swap. Setting to 0 disables swap creation completely. STRONGLY DISCOURAGED |
| LOG (Write Cache) Overprovision Size in GiB | Overprovisioning a ZFS Log SSD can increase its performance and lifespan by distributing writes and erases across more drive flash blocks. Defining a number of GiB here overprovisions ZFS Log disks during pool creation or extension. Examples: 50 GiB, 10g, 5GB |
GUI
| Name | Description |
|---|---|
| Show Console Messages | Display console messages in real time at the bottom of the browser. |
| Show Advanced Fields by Default | Set to always show advanced fields, when available. |
Kernel
| Name | Description |
|---|---|
| Enable Autotune | Activates a tuning script which attempts to optimize the system depending on the installed hardware. Warning: Autotuning is only used as a temporary measure and is not a permanent fix for system hardware issues. |
| Enable Debug Kernel | Set to boot a debug kernel after the next system reboot. |
Self-Encrypting Drive
| Name | Description |
|---|---|
| ATA Security User | User passed to camcontrol security -u to unlock SEDs. |
| SED Password | Global password to unlock SEDs. |
Syslog
| Name | Description |
|---|---|
| Use FQDN for Logging | Set to include the Fully-Qualified Domain Name (FQDN) in logs to precisely identify systems with similar host names. |
| Syslog Level | When Syslog Server is defined, only logs matching this level are sent. |
| Syslog Server | Remote syslog server DNS host name or IP address. Add a colon and the port number to the host name to use nonstandard port numbers. For example: mysyslogserver:1928. Log entries are written to local logs and sent to the remote syslog server. |
| Syslog Transport | Transport Protocol for the remote system log server connection. Selecting Transport Layer Security (TLS) also requires selecting a preconfigured system certificate and certificate authority. |
| Syslog TLS Certificate | Select the preconfigured system certificate to use for authenticating the TLS protocol connection to the remote system log server from the dropdown list. |
| Syslog TLS Certificate Authority | The preconfigured system certificate authority to use for authenticating the TLS protocol connection to the remote system log server from the dropdown list. |
Replication
| Name | Description |
|---|---|
| Replication Tasks Limit | Limit the maximum number of replication tasks the system can execute simultaneously. |
SAVE DEBUG generates text files that contain diagnostic information.