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On Wed, Jun 21, 2017 at 12:32 PM, Jon Bernard <jobernar at redhat.com> wrote:
> I suspect you'd want to enable layering at minimum.

I'd agree that layering is probably the most you'd want to enable for
krbd-use cases as of today. The v4.9 kernel added support for
exclusive-lock, but that probably doesn't provide much additional
benefit at this point. The striping v2 feature is still not supported
by krbd for non-basic stripe count/unit settings.