FreeNAS 9.1.0 released

FreeNAS 9.1.0 has been released. The new version of FreeNAS is based on FreeBSD 9.1-STABLE and brings new features in several areas, including

  • ZFS now supports flags, TRIM, improved drive removal notifications and LZ4 compression
  • The plugin interface has been revised: FreeNAS plugins can now be installed directly from a FreeNAS repository
  • several plugin jails can be created and used in parallel
  • Improved volume manager that can automatically optimize volumes for performance
  • Improvements in the encryption system


ZFS pools that are upgraded can no longer be used with older FreeNAS versions or cannot be converted back. So this step should be done with caution - and ideally a backup - even if a backup is not so easy to realize with a NAS due to the amount of data. If you want to upgrade the FreeNAS Plugin Jail to the new version, you need to run an upgrade script:

/root/migrate_pluginjail.sh -D

Newbies or people who want to upgrade (I will do the upgrade on my HP N36L Microserver during the weekend) can get the appropriate files on the Sourceforge page of the FreeNAS Project. They are available for download for 32- and 64-bit systems:

Who wants to build a new FreeNAS system will find a FreeNAS shopping list based on the HP N54L with 2.2 GHz.

3 comments

  1. It is best to install the beta of 9.1.1 right away. I didn't do it and installed 9.1.0, but there are a lot of bugs in it, which made me go to 9.1.1 the same day.

    1. With me the 9.1.0 runs actually quite usable, only timemachine backup was not possible. I will go to 9.1.1 if I get the chance, maybe it will be better there.

Leave a Reply

Your email address will not be published. Required fields are marked *