[mythtv-users] Should I use LVM on this new raid?

Dan Ritter dsr-myth at tao.merseine.nu
Sun Sep 23 11:50:07 UTC 2007

On Sun, Sep 23, 2007 at 03:17:31PM +1000, Bill Williamson wrote:
> On 9/23/07, John Drescher <drescherjm at gmail.com> wrote:
> > > Unless I'm missing something, ZFS doesn't have a compatible license for
> > > the linux kernel, hence hasn't been ported.  There is FUSE, apparently
> > > a user mode implementation, but not sure I want to do down that road.
> > >
> > I briefly tested it yesterday at work on a raid that gets over 250MB/s
> > (read test under hdparm) and my reads and writes with the zfs-fuse
> > driver were around 25MB/s and 5MB/s with compression. I was very
> > interested in all its features and everything I did worked but with
> > that performance it is not usable for me. Possibly it does not work
> > well with non zfs raid or some other reason.
> >
> I've not hit performance that horrible.  ZFS is expecting to be in
> charge of the raw devices, so if you fed it an already-set-up raid
> array then that was likely your issue.

I thought this was the case when you posted originally, and now 
I'm sure of it.

Bill, you haven't actually used ZFS on a Linux system, have you?
And definitely not in a Myth box.

Yes, ZFS is great, ZFS is wonderful, ZFS will make toast. But
only on a Solaris or FreeBSD box right now, and there's doubt
about how good it is on FreeBSD.


Every time you give up a right, the terrorists win.

http://tao.merseine.nu/~dsr/eula.html is hereby incorporated by reference.

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