In article <pan.2004.10.08.13.28.54.839174@utility.vccs.edu >, F. Michael Orr wrote:
> On Thu, 07 Oct 2004 16:07:00 +0000, Mike wrote:
>
>> I have a shark (an f20?) that has two undefined 8 packs installed.
>> I need to combine those 8 packs into a single 'device' for adding
>> to an intel box. I have tried choosing both 8 packs to raid them
>> together, but the interface wouldn't let me choose both at one time.
>> I also tried adding the two (now raid 5) volumes to the intel
>> server (windows 2003) as a single device, but it wouldn't let me
>> do that either.
>>
>> How do I do this?
>>
>> Mike
>
> You're going about it wrong. You can't combine disk groups into a single
> device. And, IIRC, a disk group spans different physical 8 packs anyway,
> so you're two steps away from what you want. What you need to do is to
> define LUNs on the disk groups. At minimum, two LUNs, each constituting
> an entire disk group. Then assign them to the Windows host, and create a
> spanned volume at the Windows level. That will combine the storage into
> one volume to Windows.
>

This is also what IBM just confirmed. We wanted to avoid creating a
'dynamic disk' at the windows level (the nt admin has his reasons). For
aix I don't care, but it seems to make a difference to windows.

Mike