sliceing say "S0" to be used as root-filesystem would make
ZFS not using the write-buffer on the disks.
This would be a slight performance degrade, but would increate
reliability of the system (since root is mirrored).
Why not living on the edge and booting from ZFS ?
This would nearly eliminate UFS.
Use e.g. the two 500GB Disks for the root-filesystem
on a mirrored pool:
mirror X Z here lives the OS with it's root-Filesystem on ZFS
*and* userdata in the same pool
raidz A B C D or any other layout
or
User zwo of the 250GB ones:
pool boot-and-userdata-one
mirror A B here lives the OS and userdata-one
pool userdata-two
mirror C D userdata-two spanning CD - XY
mirror X Y
Thomas
On Thu, Sep 27, 2007 at 08:39:40PM +0100, Dick Davies wrote:
> On 26/09/2007, Christopher <[EMAIL PROTECTED]> 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,
>
> Would be nice to remove that as a SPOF.
>
> I know ZFS likes whole disks, but I wonder how much would performance suffer
> if you SVMed up the first few Gb of a ZFS mirror pair for your root fs?
> I did it this week on Solaris 10 and it seemed to work pretty well
>
> (
> http://number9.hellooperator.net/articles/2007/09/27/solaris-10-on-mirrored-disks
> )
>
> Roll on ZFS root :)
>
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