Get a Quote     (408) 943-4100   TrueNAS Discord VendOp_Icon_15x15px Enterprise Support
TrueNAS.com Software Systems Company Community Security iX Portal Download
TrueNAS Enterprise TrueNAS SCALE TrueNAS CORE Compare Editions TrueCommand Software Status FreeNAS
Compare Systems F-Series M-Series H-Series R-Series Mini Series
Contact Us iXsystems Careers Clients Reviews
TrueNAS GitHub Community Forum Discord TrueNAS Merch Store
Use Cases Analytics Backup and Archival Cloud Data Mobility File Sharing iX Storj Media Creation Surveillance Virtualization
Industry Education Government Healthcare Research / AI / ML Media & Entertainment
Enterprise Support Community Support Documentation TrueNAS Security FAQ ZFS Overview
TrueNAS Blog Solution Guides Datasheets Case Studies Videos TrueCommand Cloud
Download TrueNAS SCALE Download TrueNAS CORE Get TrueNAS Enterprise Compare TrueNAS Editions Contact an Enterprise Specialist
  1. TrueNAS CORE
  2. /
  3. UI Reference Guide
  4. /
  5. System
  6. /
  7. Failover (HA)
Edit page
TrueNAS CORETrueNAS CORE Version Documentation
This content follows the TrueNAS CORE 13.0 releases. Use the Product and Version selectors above to view content specific to different TrueNAS software or major version.

Failover (HA)

  1 minute read.

TrueNAS Enterprise
This article only applies to licensed TrueNAS Enterprise High availability (HA) systems. Contact the iXsystems Sales Team to inquire about purchasing TrueNAS Enterprise licenses.

Failover Configuration

System Failover Enterprise

NameDescription
Disable FailoverDisable automatic failover.
Default TrueNAS ControllerMake the currently active TrueNAS controller the default when both TrueNAS controllers are online and HA is enabled. To change the default TrueNAS controller, unset this option on the default TrueNAS controller and allow the system to fail over. This briefly interrupts system services.
Network Timeout Before Initiating FailoverThe number of seconds to wait after a network failure before triggering a failover. 0 means a failover occurs immediately or after two seconds when the system is using a link aggregation.
SYNC TO/FROM PEERSynchronizes the active and standby TrueNAS controllers.

Related Content

Have more questions or want to discuss your specific configuration? For further discussion or assistance, see these resources:

Found content that needs an update? You can suggest content changes directly! To request changes to this content, click the Feedback button located on the middle-right side of the page (might require disabling ad blocking plugins).