[LSF/MM/BPF TOPIC] Native SCSI multipath support

[Hannes Reinecke]

On 2/13/26 15:19, John Garry wrote:
> At ALPSS 25 I presented a proposal for Native SCSI multipath support. 
> Let's discuss this topic at LSFMM.
> 
> The idea for this is that SCSI could natively support multipath, like 
> how NVMe host driver does today. It is intended as an alternative to dm- 
> multipath support.
> 
> I have been working on the implementation and I plan to post patches in 
> the next cycle. I am looking at a 3-stage approach:
> a. create a driver-agnostic multipath library, very heavily based on 
> NVMe host multipath support.
> The library would support features such as path management, path 
> selection/iopolicy, failover recovery, PR, delayed removal, gendisk 
> management etc.
> b. switch NVMe over to use this library
> c. add native SCSI multipath support based on this common library
> 
Go for it, John!

I'd be very interested in that.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare at suse.de                                +49 911 74053 688
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