[dm-devel] [PATCH 2/7] libmultipath: add detect_checker option

Benjamin Marzinski bmarzins at redhat.com
Mon Feb 13 14:40:02 UTC 2017


On Mon, Feb 13, 2017 at 07:51:21AM +0100, Hannes Reinecke wrote:
> On 02/11/2017 06:28 AM, Benjamin Marzinski wrote:
> > This patch adds a detect_checker option that works just like the
> > detect_prio option.  It currently only detects ALUA devices, and
> > if it finds ALUA support, it sets the priortizier to TUR. This is
> > useful for devices like the VNX2, where it should be using the
> > TUR checker when in ALUA mode (or so I have been told). It is set on by
> > default just like detect_prio and retain_attached_hw_handler.
> > 
> Isn't it about time to move the ALUA detection into the path detection
> proper, and make it an additional attribute to struct path?
> 
> More and more things start to look for it, and it really feel stupid to
> do the ALUA detection over and over again.

Sure. I can change that.

-Ben

> 
> Cheers,
> 
> Hannes
> -- 
> Dr. Hannes Reinecke		   Teamlead Storage & Networking
> hare at suse.de			               +49 911 74053 688
> SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
> GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
> HRB 21284 (AG Nürnberg)




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