[dm-devel] Re: Round Robin vs Active/Passive

[Hannes Reinecke]

Hi Tore,

Tore Anderson wrote:
[ .. ]
> What I need to do is this:
> 
> # My new CX3-40f which supports ALUA (preferred) as well as PNR
> device {
> 	vendor DGC
> 	product *
> 	product_blacklist LUNZ
> 	alua_capable yes
> 	[..ALUA optimised settings...]
> }
> 
> # My old CX200, only supports PNR
> device {
> 	vendor DGC
> 	product *
> 	product_blacklist LUNZ
> 	alua_capable no
> 	[..PNR optimised settings...]
> }
> 
> ...but there's no such thing as the "alua_capable" setting or any other
> setting that can be used to distinguish between the two CLARiiONs, as
> far as I know, so I have to use both arrays in PNR mode even though the
> newest one of them supports ALUA.
> 
No need. I did some patch once ago which allowed you to set the hardware
handler in the multipaths section.
For exactly this scenario. Can you test if it works?

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		      zSeries & Storage
hare at suse.de			      +49 911 74053 688
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