[clug-talk] WD Green HDD's with ZFS

Gustin Johnson gustin at meganerd.ca
Mon Mar 26 10:50:54 PDT 2012

On Mon, Mar 26, 2012 at 6:58 AM, Royce Souther <osgnuru at gmail.com> wrote:

> I like ext3/4 on top of LVM because I know it is very stable. I think I
> will try ZFS on one server and stick with ext4 on LVM for the other. I know
> that ext4 on LVM is fast enough to do what I need and the servers are
> identical so I will be able to see how fast ZFS is.
> I have been using XFS for years and consider it to be as stable if not
more than ext4.  You can't go wrong with either of them IMO.

> The problem with why ZFS is not in the Linux kernel is because the license
> is BSD so it will never be in the official Linux kernel. And as much as it
> make Linus mad that third party vendors are able to make non-GPL modules
> for the kernel, there is nothing he can do to stop it and some distro's
> have packages for ZFS.
> Actually ZFS is released under the CDDL:
If I were cynical I would say that Sun went looking for an "Open" licence
that was incompatible with the GPL.

See here for details on the incompatibility:

I do not consider FUSE or relying on a Ubuntu PPA to be a solution.  The
performance penalty you pay with FUSE pretty much negates any advantage any
file system may have (except of course sshfs and other slow WAN FUSE based
file systems).  The third option of building it myself is no longer viable.

I am not a fan of either the CDDL or the BSD licence.  It does not matter
if you agree with him or not, but he (Linus) has very good reasons for the
opinions he holds.  I tend to agree with most of them.

> I am going to try this on one server and see if I like it. Switching back
> is easy if it is no good.
> Either way, I am interested to find out how you fare.  ZFS seems
interesting it is just that I have not been all that willing to invest time
in something that has no chance (under it's current licence) of being
included in the stock Linux kernel.
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