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12.0-U5.1

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Last Modified 2022-04-05 15:50 EDT

(View included 12.0-U5.0 changes)

TrueNAS Quality Lifecycle

Release StageCompleted QA CyclesTypical UseDescription
NIGHTLY0DevelopersIncomplete
ALPHA1TestersNot much field testing
BETA2EnthusiastsMajor Feature Complete, but expect some bugs
RC4Home UsersSuitable for non-critical deployments
RELEASE6General UseSuitable for less complex deployments
U17Business UseSuitable for more complex deployments
U2+8Larger SystemsSuitable for higher uptime deployments

August 17, 2021

iXsystems is pleased to announce the general availability of TrueNAS 12.0-U5.1! This is a performance improvement release that includes middleware updates for disk management operations. This release builds on all the bug fixes and quality of life improvements from the TrueNAS 12.0-U5 release.

With TrueNAS 12.0-U5.1, users will notice improved responsiveness with storage pool operations. This improvement applies to every kind of TrueNAS deployment, but those deployments with larger disk counts will see the greatest benefit.

TrueNAS CORE and Enterprise users are encouraged to upgrade their systems to get these latest performance improvements. Enterprise customers can contact iX Support for assistance with upgrading their TrueNAS systems.

Customers who purchase iXystems hardware or that want additional support must have a support contract to use iXystems Support Services. The TrueNAS Community forums provides free support for users without an iXsystems Support contract.

Contact MethodContact Options
Webhttps://support.ixsystems.com
Emailsupport@ixsystems.com
TelephoneMonday - Friday, 6:00AM to 6:00PM Pacific Standard Time:

US-only toll-free: 1-855-473-7449 option 2
Local and international: 1-408-943-4100 option 2
TelephoneAfter Hours (24x7 Gold Level Support only):

US-only toll-free: 1-855-499-5131
International: 1-408-878-3140 (international calling
rates apply)

TrueNAS 12.0-U5.1 Changelog

Improvement

  • NAS-111868 - Improve performance of middleware pool management

Known Issues

KeySummaryWorkaround
Asigra Plugin UpgradesAsigra users running version 14.2.0.2 or earlier requires a TrueNAS CLI upgrade procedure to update to a new plugin version. In the TrueNAS web interface, open the **Shell** and enter iocage upgrade asigra-plugin-name, replacing asigra-plugin-name with whatever unique name was created for the plugin.
NAS-106992Persistent L2ARC is disabled by default.While the underlying issues have been fixed, this setting continues to be disabled by default for additional performance investigation. To manually reactivate persistent L2ARC, log in to the TrueNAS Web Interface, go to System > Tunables, and add a new tunable with these values:
  • Type = sysctl
  • Variable = vfs.zfs.l2arc.rebuild_enabled
  • Value = 1
TrueNAS "root" user account cannot be an SMB user.This is an intentional change to improve software security and suitability for deployment in a variety of environments. Update the SMB configuration to use a different user account.