Re: setting up raid10 with more than 4 drives - Mailing list pgsql-performance

* Luke Lonergan (llonergan@greenplum.com) wrote:
> Hi Rajesh,
>
> On 5/29/07 7:18 PM, "Rajesh Kumar Mallah" <mallah.rajesh@gmail.com> wrote:
>
> > D1 raid1 D2 raid1 D5  --> MD0
> > D3 raid1 D4 raid1 D6  --> MD1
> > MD0 raid0 MD1  --> MDF (final)
>
> AFAIK you can't RAID1 more than two drives, so the above doesn't make sense
> to me.

It's just more copies of the same data if it's really a RAID1, for the
extra, extra paranoid.  Basically, in the example above, I'd read it as
"D1, D2, D5 have identical data on them".

    Thanks,

        Stephen