The release of FreeNAS 8 includes major architectural optimizations, a django-driven user interface, and ZFS - lending us some useful features like thin provisioning, periodic snapshots, LDAP and Active Directory authorization along with the most popular platform sharing protocols.
FreeNAS 8 retains enterprise-class services while eliminating some "Home User" functionality such as iTunes/DAAP, Bit Torrent, and UPnP. These features will make it back as third-party plugins at a later date.
Release Notes for FreeNAS 8.0
FreeNAS 8 should be installed to a USB stick or Compact Flash device. It requires a device of at least 1 GB in size. In a departure from FreeNAS 0.7 releases, the OS drive can not be used as a component for a volume, nor can it be partitioned for sharing.
Features in 8.0-RELEASE:
FreeNAS 8.0-RELEASE supports NFS, CIFS, AFP, FTP and TFTP as filesharing mechanisms. It also supports exporting devices via iSCSI as an iSCSI target.
Active Directory or LDAP for user authentication.
The ZFS and UFS2 filesystems are supported. ZFS is the primary filesystem and enables usage of many features, including quotas, snapshots, compression and replication that are not available in UFS2.
The iSCSI Target software does not properly present multiple LUNs per target to initiators. For the best results use one target per LUN.
The iSCSI target does not support a configuration reload. Changes to the config restart the daemon.
Disks with certain configs can get get probed by geom and become essentially unwritable without manual intervention. For instance, if you use disks that have previously had a geom_mirror on them the system may pick that up and the disks will be unavailable until the existing gmirror is stopped and destroyed.
Some atom based systems with Realtek gigE interfaces have network performance issues with FreeBSD 8.2
UPGRADES FROM FREENAS 0.7x ARE UNSUPPORTED
The system has no way to import configuration settings from 0.7 versions of FreeNAS, but the volume importer should handle volumes created with FreeNAS 0.7. Please note that zpool upgrade is a one way street, and upgraded volumes will not be usable with FreeNAS 0.7.x
A note about versions:
There's been a huge jump in version numbers. The intention is to have the version number reflect the base version of FreeBSD used. This RC is based on FreeBSD 8.2, but this version of FreeNAS is called 8.0 as there are future plans to add functionality that will get the versions caught up. Once FreeNAS 8.2 is out, a suffix will be added, such as 8.2.1, 8.2.2, etc.
A note about filesystem technologies:
While this system does support UFS based volumes, such as gmirror, gstripe, graid3, the primary focus is on ZFS. Many of the features are provided via ZFS datasets, such as the ability to share subsets of volumes via CIFS. This delta is likely to increase over time, the compelling reasons to use ZFS are likely to increase as well. It is highly recommended to use ZFS for new volumes, even if the underlying device is a volume exported by a hardware RAID controller.