[PATCH v1 1/2] nvme: drop multipath config option

Daniel Wagner dwagner at suse.de
Wed Jul 19 05:12:22 PDT 2023


On Wed, Jul 19, 2023 at 01:38:55PM +0200, Keith Busch wrote:
> Yeah, dm-mpath is such a setup this was intended to prevent, as well as
> out-of-tree alternatives. Not that I advocating one way or another at
> this point; I'm just trying to set the context for why this message
> exists for discussing your patchset.

Fair enough.

> I'm curious why a proprietary module is even used, though. Is the
> driver's native handling doing something undesirable, or is this to
> cater to some vendor specific behavior outside the spec? If the former,
> I'd like to understand the problem and see if there's something we can
> improve.

Unfortunatly, I don't have any insides into PowerPath, or what it tries to
achieve. I suspect it's more vendor specific handling features. I'll ask if
there is a feature gap we could address in upstream.



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