In article <mv_Qb.14809$5K1.1019872@twister.southeast.rr.com> , No Body wrote:
> "Bill" <bverzal@komatsuna.com> wrote in message
> news:51157c68.0401210809.743fabec@posting.google.c om...
>> If your rootvg is mirrored, unmirror it.
>
> can you explain your logic in this? I've only done a handful of upgrades,
> but having rootvg mirrored didn't matter a bit, save for remembering to
> bosboot -ad the mirrordisk.
>
> .. unless you're using alt_disk_install as a upgrade or fallback method, I
> don't see the point.
>
> -r
>
>

We have all the servers here mirrored, but the servers do not generally
have four disks internally. So I break the mirrored pair and upgrade
on only a single drive. I'm exposed while the upgrade is going on,
but as you pointed out I have a built-in fallback method. If the app
does not run in production with the new OS version, I boot back to
the original os and re-mirror.

Mike