exictent zroot re-alignment to 4K

krad kraduk at gmail.com
Thu Aug 29 10:44:59 UTC 2013


I havent tested that myself does that mean you can have ashift=9 for your
1st raidz(23)* vdev and ashift=12 for the 2nd in a striped raidz(23)*
setup? If so does the same apply in a mirror?


On 28 August 2013 15:25, <kpneal at pobox.com> wrote:

> On Wed, Aug 28, 2013 at 11:47:51AM +0100, krad wrote:
> >    you cant mirrir if your ashift=9 as its a pool level thing
>
> Well, strictly speaking the ashift is per-vdev.
>
> Of course, if you only have a single disk and therefore only have
> a single vdev then the distinction doesn't matter. It does matter
> when adding new vdevs to an existing pool.
>
> >    On 28 August 2013 09:24, Zeus Panchenko <[1]zeus at ibs.dn.ua> wrote:
> >
> >    krad <[2]kraduk at gmail.com> wrote:
> >    > is it just an alignment problem or are you ashift=9 (zdb zroot |
> grep
> >    > ashift) as well? If you are already ashift=12,
> >
> >      yes, I am ashift=9 and it is the very cause I decided to re-allocate
> >      the
> >      partition ...
> --
> Kevin P. Neal                                http://www.pobox.com/~kpn/
>
>    "I like being on The Daily Show." - Kermit the Frog, Feb 13 2001
>


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