Re: [LSF/MM ATTEND] [LSF/MM TOPIC]

[Matias Bjorling <m@bjorling.me>]

On 01/09/2015 05:14 PM, Ewan Milne wrote:
> I'd like to attend LSF -- I am responsible for maintaining the SCSI
> subsystem at Red Hat, and in addition to resolving issues for customers
> and partners, I've been participating in upstream development for the
> past couple of years.  I have an extensive background in SCSI and OS
> development, including 15 years of working with the Linux kernel.
> 
> I would also like to have a discussion at LSF/MM 2015 about how we could
> better handle devices whose properties change after being probed. This
> includes:
> 
>   - READ CAPACITY data
>   - ALUA state
>   - EMC OWNED/UNOWNED state
>   - NOT READY state
> 
> Currently, when these properties change, we do not always handle it
> very well (e.g. multipath stops using a path if the capacity changes,
> even if it the only good path to the device...)
> 
> -Ewan Milne <emilne@redhat.com>
> 
> 

I'll like to discuss this as well. Some of these can be beneficial to
open-channel ssds, where the capacity can change dynamically.

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