Re: AIX SAN boot

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Date:         Wed, 13 Oct 2004 12:21:44 -0500
To: aix-l@Princeton.EDU

I'm curious to hear some anwsers on this as well. I recently tried to
restore a 5.2 mksysb from a p650 on DVD to a p670 and it failed during
overmount. Booted from the DVD so that wasn't the issue...tried it again,
new mksysb....same problem.

During the DVD mksysb creation, I got some strange errors saying that
..."some systems wouldnt be bootable bc some device filesets didn't
exist..."

I'll try and hunt down the original msg

Bobby Kelley Jr.
972-877-5341

             "Green, Simon"
             <Simon.Green@EU.A
             LTRIA.COM> To
             Sent by: IBM AIX aix-l@Princeton.EDU
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             <aix-l@Princeton.
             EDU> Subject
                                       Re: AIX SAN boot

             10/13/2004 09:12
             AM

             Please respond to
                  IBM AIX
              Discussion List
             <aix-l@Princeton.
                   EDU>

It's really not something that would be supported.

Provided you have the same architecture - e.g. all CHRP - I think you
should
be able to get away with it. You'd need to install all the extra device
filesets for the second server. Even then, I wouldn't expect it to boot
cleanly. You may have problems with license keys.

I've only done this sort of thing once. That involved moving disks from a
dead server to another almost identical server, (same model and everything;
the only difference was the new one had an SSA adapter, which I had no
interest in). This wouldn't boot first time: I had to drain the NVRAM and
mess with the bootlist in the firmware menus.

I only did this because there wasn't a recent backup of the system and the
extra effort was worth it to the customer to avoid losing data. I would
not
recommend anyone else attempting this except under similar circumstances
and
certainly not on a regular basis.

What are you trying to achieve? Maybe someone can suggest a better way.

--
Simon Green
Altria ITSC Europe Ltd
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> -----Original Message-----
> From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On
> Behalf Of Nguyen, Joseph
> Sent: 12 October 2004 21:10
> To: aix-l@Princeton.EDU
> Subject: AIX SAN boot
>
>
> I have servers that are booting from SAN disks and I need to
> be able to
> assign the SAN disks and boot from different class of servers
> , i.e. from
> S85 to p650, or p670 to 6M1.
>
> What fileset(s) that I need to install on the boot image to
> accomplish all
> platforms?

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