Hans de Goede wrote:
The containers are purely an intermediate device, which we need in the tree
for parent child relations, etc. But they should never be used in any way.
I'm aware of all of this. My question was "_Can_ users create containers
and then create native-metadata arrays inside those containers
manually?"
AFAIK that is not possible. Arrays inside containers don't have metadata,
only the container has. IOW arrays inside containers always have the
metadata type of the container (as they use the metadata from there), and
that metadata type always is external.
Correct. The container is only there for userspace to track which
arrays belong to the same metadata set (N:1 arrays per metadata set).
MD metadata in comparison is always 1:1 (arrays per metadata) set so
there really isn't room for the container concept. And MD metadata is
managed by the kernel so we don't need this intermediate step in the
assembly process for userspace to evaluate the "candidate" disks
(container members) before starting the arrays inside the container.
--
Dan
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