Re: [LSF/MM/BPF TOPIC] Multi-actuator HDDs

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On Mon, 2020-02-10 at 10:26 -0800, Keith Busch wrote:
> On Mon, Feb 10, 2020 at 12:01:13PM -0600, Muhammad Ahmad wrote:
> > For NVMe HDDs are namespaces the appropriate abstraction of the
> > multiple actuators?
> 
> This sounds closer to what "NVM Sets" defines rather than namespaces.
> Section 4.9 from NVMe 1.4 spec has additional details if interested.

I've got to say that since multi-actuator devices will always be
spinning rust, bending NVMe concepts to fit them seems horribly wrong
... as does adding any rotational devices to NVMe: You just built a
clean NVM stack ... let's not contaminate it.

James




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