On Sat, 12 Apr 2014 10:12:00 +0200 Francis Moreau <francis.moro@xxxxxxxxx>
wrote:
> Hello Neil,
>
> On 04/12/2014 01:50 AM, NeilBrown wrote:
> > On Fri, 11 Apr 2014 10:19:23 +0200 Francis Moreau <francis.moro@xxxxxxxxx>
> > wrote:
> >
> >> Hello,
> >>
> >> I'd like to know if it's possible to get the size of a RAID{5,6} which
> >> is not created yet but the size of the partitions which will make up the
> >> array are.
> >
> > How precise does the "guess" need to be?
> >
>
> I just need an approximation in order to report to user some information
> about the (raided) partition my tool is about to create.
>
> > If you subtract about 128Meg from the size of the partitions, round down the
>
> Just to be sure the size of the partitions is equal to the min size of
> all partitions ?
Correct.
NeilBrown
>
> > a multiple of the chunk size then multiply by the number of data disks, you
> > should come quite close.
>
> Thanks, that should do the trick.
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