[CentOS] mdraid on top of mdraid

[Marcelo Roccasalva]

On Mon, Mar 21, 2011 at 14:51, Emmanuel Noobadmin
<centos.admin at gmail.com> wrote:
> Is it possible or will there be any problems with using mdraid on top of mdraid?
>
> specifically say
> mdraid 1/5 on top of mdraid multipath.
>
> e.g. 4 storage machines exporting iSCSI targets via two different
> physical network switches
>
> then use multipath to create md block devices
>
> then use mdraid on these md block devices
>
> The purpose being the raid storage array surviving a physical network
> switch failure.

Multipath should survive ONE switch failure and your storage should
provide a fast raid implementation. You'll have really poor
performance if you raid over iscsi...

-- 
Marcelo

"¿No será acaso que ésta vida moderna está teniendo más de moderna que
de vida?" (Mafalda)