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Date:   Mon, 10 Feb 2020 10:26:45 -0800
From:   Keith Busch <kbusch@kernel.org>
To:     Muhammad Ahmad <muhammad.ahmad@seagate.com>
Cc:     linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org,
        linux-scsi@vger.kernel.org, Tim Walker <tim.t.walker@seagate.com>
Subject: Re: [LSF/MM/BPF TOPIC] Multi-actuator HDDs
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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.