On Monday 24 September 2007 22:56:26 Jan-Frode Myklebust wrote:
> On 2007-09-24, Nuno Fernandes <[EMAIL PROTECTED]> wrote:
> >> With engenio/rdac that's what you have if you're lucky, but you might
> >> just as well be unlucky and get:
> >>
> >> (a) HBA1 ====== DS4x00 controller A ==== LUNx
> >> (b) HBA1 ====== DS4x00 controller B ==== LUNx
> >> (c) HBA2 ~~~~~~ DS4x00 controller A ~~~~ LUNx
> >> (d) HBA2 ~~~~~~ DS4x00 controller B ~~~~ LUNx
> >
> > I've disabled AVT (Automatic Volume Transfer) in DS4700. I can't have two
> > active paths to the same LUNx using both controllers.
>
> Oops, my bad. I intended to write LUNx/LUNy/LUNx/LUNy.
>
> >> I'm not familiar with EMC Clariion... but have hit this exact same
> >> problem on IBM DS4800/RDAC.
> >
> > How did you solve it? :)
>
> Followed the RDAC readme and avoided seeing both controllers on same HBA.
> I even think it looks like a good thing to keep both FC switches
> completely separated. Then a misconfiguration on one can't propagate
> to the other.
I also have both FC switches completly separated.
| -> Controller A
HBA A -> SwitchA |
| -> Controller B
| -> Controller A
HBA B -> SwitchB |
| -> Controller B
I'm in the process of testing rdac support builtin to ther kernel.
Regards
Nuno Fernandes
>
> -jf
>
> _______________________________________________
> rhelv5-list mailing list
> [email protected]
> https://www.redhat.com/mailman/listinfo/rhelv5-list
_______________________________________________
rhelv5-list mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/rhelv5-list
