GEOM for multipath? How?

Sergey Babkin babkin at
Thu Nov 10 13:22:23 GMT 2005

>From: Danny Howard <dannyman at>

>Hey ... yes, I recall there being issues with the QLogic drivers ... I
>wonder if anyone has given the mpt drivers a shot?  I was able to speak
>with an engineer at Engenio (now owned by LSI) and she said there were
>some issues with the QLogic dual-port cards that were interesting to
>her, but the LSI dual-port cards behaved differently ...

QLogic worked fine in multi-path configuration with UnixWare.
I think LSI and Adaptec did too. The only trick is to make sure 
that the IRQs of the cards are not shared between the cards or with
any other device.


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