"Ulrich Windl" <Ulrich.Windl@RZ.Uni-Regensburg.DE> wrote in message
news:871wevslne.fsf@pc9454.klinik.uni-regensburg.de...
> Hi,
>
> I have basically two questions (for HP-UX 11.11 and newer):
>
> HP technican said HP-UX can deal with non-contiguous LUNs for disks, but
> it
> seems it cannot; is there a patch maybe? The sympom is: A FC-based disk
> array
> (HP EVA 4000) presents these LUNs to a host: 0,1,2,3,4, 9. When doind an
> ioscan on the FC-HBA, device files are created for LUNs 0-4, but not for
> 9.
> That's my question: Is HP-UX able to detect non-contiguous LUNs
> automatically?
>
> The second question is: If HP-UX cannot detect those automatically, can it
> access the hardware if I create a correct device file manually?
>
> Finally, it seems HP-UX can only ioscan a complete FC-HBA, but it cannot
> ioscan for a specific LUN. Maybe that means that the answer to both
> questions
> above is "no".
>
> Any insights on that? (The background for this is: We want to present the
> same
> virtual disks as the same LUNs in all nodes of a cluster where the nodes
> are
> not perfectly symmetric).
>
> Regards,
> Ulrich

I have not (yet) tried this on an EVA, but HP-UX (11.00, 11.11 and 11.23)
will work quite happily on non-contiguous LUNs off a VA array.

Will test on an EVA6000 (with HPUX 11.23 IA) for you.



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