On 2/10/06, cisco4ng <cisco4ng AT yahoo DOT com> wrote:
>
> I would like to upgrade the MDS infrastructure from HFA_318 to HFA_327.
> The problem is that on about 200 CMAs, we have made a lot of changes in
> the user.def, base.def, etc... Furthermore, we've also made lot of changes
> with dbedit and/or gui-dbedit with these CMAs. If I am not mistaken,
> when upgrading from HFA_318 to HFA_327, a lot of these settings will be
> overwritten by the HFA. If that is true, then I will be in big trouble.
> Is there a way to upgrade my MDS infrastructure from HFA_318 to HFA_325
> without losing the settings for each of my CMAs? I don't know if I can
> back up ALL 250 CMAs individual settings. Furthermore, how can I verify
> that ALL of my settings remain after the HFA upgrade? In other words, is
> there
> a safe way to do this?
>
I think that this calls for a procedural approach rather than a
technology approach....
If you were on Intel, my advise would be to have a QA scenario using
VMWare: upgrade on your virtual machine and then perform diffs on a
couple of CMAs where you have changes to see if they how they were
processed.
On your situation, taking a look on your change management
documentation (I assume you do have change management on such a big
scenario with 200 CMAs) would be good to isolate what CMAs have
changes and deal with those case by case.
Using diff files now (since you are using Solaris), seems to me the
most automated approach available. First compare a current unmodified
.def file (with HFA318) against a .def file that has been modified.
You may script this looking under the customers directory (shell
scripting is your friend here), that way you will know exactly where
and what was modified..
In any case, doing all this on a QA scenario seems very wise to me on
your situation...
Good luck,
- Martín
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