[LSF/MM/BPF TOPIC] demo Linux nvme initiator driver stretched and dispersed subsystems

[Randy Jennings]

On Wed, Feb 25, 2026 at 5:32 PM Randy Jennings <randyj at purestorage.com> wrote:
>
> On Fri, Feb 13, 2026 at 5:16 PM Randy Jennings <randyj at purestorage.com> wrote:
> >
> > I'd like to demonstrate the Linux nvme initiator driver interacting
> > with a stretched and a dispersed subsystem, run through some workflows
> > and illustrate usecases that are possible with one and not the other.
> > No, this is not necessarily production code.
> A few more details:
> I am still interested in extending the namespace mobility and
> synchronous replication use cases to NVMe. As instructed, stretched
> subsystems have been implemented on Pure’s array. I will demonstrate a
> Linux host and Pure array stepping through these use cases. I will
> also demonstrate and discuss the limitations that come from this
> approach and solicit alternatives. Finally, I will demonstrate a
> hacked Linux initiator that implements dispersed namespaces that
> avoids those limitations (this is not even a prototype, just a
> demonstration).
Presentation is available here:
https://drive.google.com/file/d/1DcUJMyjSuMj6SsNeue_gqV3PHXZThoFO/view

Sincerely,
Randy Jennings