linux-kernel - dm-raid usage setup

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Message-ID: <1e0a825cdacb2cbb1534516c64e08c649e4596bd.camel@gnu-log.net>
Date:   Fri, 18 Aug 2023 10:38:15 +0200
From:   Benoit Gschwind <gschwind@...-log.net>
To:     linux-kernel@...r.kernel.org
Subject: dm-raid usage setup

Hello,

Is it fine and sane to stack raid device using dm-raid, i.e. raid-0
above raid-6 ?

Is it fine and sane to use raid-0 for the raid-6 journal ?

Is it fine and sane to use same disks into several different raid, i.e.
splitting disk into two or more partitions and using this partitions as
disk for different raid ?

Thanks by advance