FreeNAS vs. FreeBSD?

aurfalien aurfalien at
Sun Oct 27 22:51:51 UTC 2013

On Oct 27, 2013, at 10:25 AM, C. P. Ghost wrote:

> On Sun, Oct 27, 2013 at 5:13 PM, aurfalien <aurfalien at> wrote:
> I've tested with and w/o swap on a ZFS data set and have seen no degradation in ZFS performance.
> That's interesting. Are you using a box with AES-NI instructions or just
> plain ZFS (without encryption)?

No encrypt on my ZFS data partitions but FreeNAS encrypts the swap.

In terms of the CPU, I'm using the intel E5 2400 class hexacore proc.

Unsure if its AES-NI capable or not.  I suppose that I could look :)

> That's one of the reasons I'm still undecided. With FreeBSD, I could set up
> swap on a dedicated slice/mirror without going through ZFS/GELI; which
> is important on older CPUs that don't have AES-NI instructions. I'm quite
> afraid of the performance hit if swap is on ZFS/GELI.
> Any changes made can be backed up to a file and restored on a fresh install etc... which is simply either the ability to resort to defaults and reboot or a fresh USB key.
> That's a very useful feature indeed. I just booted a server with a USB
> key containing the FreeNAS image, and it works like a charm. Maybe
> something similar would be possible with plain vanilla FreeBSD; will
> have to investigate.
> So its more then just a GUI.
> Indeed.
> However they do not have a well defined or a defined for that matter, roadmap.
> Yup, that's the other concern I have with FreeNAS.
> The most important question would be: would FreeNAS ZFS/GELI volumes
> be importable into a regular FreeBSD system, should I decide to switch back
> to FreeBSD (e.g. if FreeNAS ceases to be supported/updated sometimes)?
> I suppose yes, provided the keys are properly backed up, but without testing,
> I wouldn't bet the farm on it.

That would be a good test if you have time.

I assume yes but assume has a funny word in it :)

- aurf

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