[dm-devel] Pushing the multipath state info into the fabric

Mike Snitzer snitzer at redhat.com
Thu Oct 26 14:35:32 UTC 2017


On Thu, Oct 26 2017 at  6:18am -0400,
Muneendra Kumar M <mmandala at Brocade.com> wrote:

>    Hi ,
> 
> 
> 
>    We are working on the SAN fabric side to collect and present the multipath
>    status information to the SAN administrators.
> 
>    So, I am looking forward to push the multipath state information to the
>    fabric in the form of CT (Common Transport) frames, by using the libhba
>    APIs.
> 
>    Since the multipath daemon is already keeping track of the multipath
>    device and state info, I feel that it is the correct place to add the code
>    to push the info to the fabric.
> 
>    Please kindly let me know your thoughts on this.

Sounds like you'd probably want to expose APIs that enable you to access
the state you require from multipathd rather than train multipathd to
inject anything into the fabric.

But that is just my initial take.

Mike




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