Unraid 7 brings ZFS and tailscale integration
The ZFS file system is coming of age in Unraid 7 and the VPN service Tailscale is playing a greater role. An array is no longer absolutely necessary.
Lime Technology, the company behind Unraid, released version 7 of the server operating system at the beginning of January. Unraid is popular on NAS systems as well as home and media servers. The major release integrates the ZFS file system and the Tailscale peer-to-peer VPN deeper into the operating system. In addition, users can now operate Unraid without the classic array. This should make Unraid more suitable for servers that primarily have (NVMe) SSDs installed.
Native ZFS support
Unraid had already begun to integrate ZFS features gradually in previous versions. Users were also able to retrofit some functions using ZFS plug-ins from the community. This should no longer be necessary. Unraid 7 supports hybrid ZFS pools (subpools), which can also be encrypted with LUKS, as well as a range of options for restoring data. ZFS spares do not yet work in Unraid 7, but the developers intend to add the function with an update in the near future. Anyone who has already configured ZFS pools in Unraid 6.12 should consult the documentation before upgrading to Unraid 7. If the Docker root directory is located on a ZFS volume, the developers recommend using the Docker storage driver overlay2; otherwise stability problems may occur.
The so-called mover, a tool that shovels data from a cache into the array at certain times, has learned to empty drives in an array. Drives can no longer be formatted with ReiserFS because the file system will soon be flying on the Linux kernel.
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Tailscale for Docker containers
The Unraid developers have integrated the Tailscale peer-to-peer VPN into the container templates to make it easier to access Docker containers outside your network. When creating a container, you can decide to connect it to your own tailnet. The containers then appear as a separate machine in the Tailscale dashboard, can be configured as an exit node or can also be made available to users outside your own tailnet via Tailscale Serve.
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Improvements to VM Manager and web interface
Those who use Unraid as a virtualization host will be pleased with the new tricks of the VM Manager, which can now clone virtual machines and take snapshots. The VM overview now lists assigned IP addresses and all graphics cards that are passed on to virtual machines. Optionally, you can also add the utilization of the VMs to the Unraid dashboard. The "Dynamix File Manager", for which you previously had to use a plug-in, has been integrated into the Unraid web interface, which has also been given a search function. In the settings in the "Power Mode" menu, you can choose between an efficient, a balanced and a performance-oriented mode.
The developers have also carried out product maintenance and brought various packages up to date and ironed out bugs. OpenSSL is now on board in version 3, for example, and macOS Time Machine should now work better with Samba shares. Since last year, new customers have only been able to purchase Unraid as part of a subscription model, which has led to some disgruntlement in the community.
(ndi)
