I would keep it simple. Let's call your 250GB disks A, B, C, D,
and your 500GB disks X and Y. I'd either make them all mirrors:
zpool create mypool mirror A B mirror C D mirror X Y
or raidz the little ones and mirror the big ones:
zpool create mypool raidz A B C D mirror X Y
or, as you mention, get another 500GB disk, Z, and raidz like this:
zpool create mypool raidz A B C D raidz X Y Z
Jeff
On Wed, Sep 26, 2007 at 01:06:38PM -0700, Christopher wrote:
> I'm about to build a fileserver and I think I'm gonna use OpenSolaris and ZFS.
>
> I've got a 40GB PATA disk which will be the OS disk, and then I've got
> 4x250GB SATA + 2x500GB SATA disks. From what you are writing I would think my
> best option would be to slice the 500GB disks in two 250GB and then make two
> RAIDz with two 250 disks and one partition from each 500 disk, giving me two
> RAIDz of 4 slices of 250, equaling to 2 x 750GB RAIDz.
>
> How would the performance be with this? I mean, it would probably drop since
> I would have two raidz slices on one disk.
>
> >From what I gather, I would still be able to lose one of the 500 disks (or
> >250) and still be able to recover, right?
>
> Perhaps I should just get another 500GB disk and run a RAIDz on the 500s and
> one RAIDz on the 250s?
>
> I'm also a bit of a noob when it comes to ZFS (but it looks like it's not
> that hard to admin) - Would I be able to join the two RAIDz together for one
> BIG volume altogether? And it will survive one disk failure?
>
> /Christopher
>
>
> This message posted from opensolaris.org
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