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

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.

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

Mike <mikee@mikee.ath.cx> wrote in
news:10md6j4pbeap9e1@corp.supernews.com:
> 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.

Let's just say that the dynamic disk manager in windows is predictably
unpredictable, as a sudden loss of 450GB after a simple reboot made plainly
clear.

You may want to take a look at the following feature: AAL - Arrays Across
Loops.

It's available for the 800, I don't know if it's possible for the F20,
since it must involve changes to the SSA adapter.

http://www-1.ibm.com/servers/storage...ancements.html

--
Doing AIX support was the most monty-pythonesque
activity available at the time.
Eagerly awaiting my thin chocolat mint.