Re: [PATCH 0/3] Provide more fine grained control over multipathing

From: Johannes Thumshirn
Date: Mon Jun 04 2018 - 03:18:37 EST


On Mon, Jun 04, 2018 at 08:19:21AM +0200, Hannes Reinecke wrote:
> Without it we're having a choice of disappointing (paying) customers or
> disappointing the upstream community.

I personally think (regardless of the fact, that I wrote the patch
under discussion), using the module parameter is sufficient for these
kind of customers. For me it's an either/or kind of setting (either
native or dm-mpath).

Downstream distributions could still carry a small patch flipping the
default to off if they want to maintain backwards compatibility with
existing dm-mpath setups (which for NVMe I doubt there are many!).

What we really should do is, try to give multipath-tools a 'nvme
list-subsys' like view of nvme native multipathing (and I think Martin
W. has already been looking into this a while ago).


Johannes
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