Re: Informix/HP-UX upgrade question

In article <654f68$7sp@cssun.mathcs.emory.edu>, Mark Collins <mcollins@us.DHL.COM> writes >Well, we're finally getting ready to upgrade the O/S on our production systems, >and I have >a couple of questions. First, the environment - DSA 7.10.UC2 (I know, I know, >but it keeps >running), HP-UX 9.04. We're upgrading to 7.23.UC1 and 10.20. Prior to the >upgrade, I plan >on taking two ontape backups (because I'm paranoid). > >The questions revolve around the HP-UX portion. First, I believe someone last >week >recommended performing a cold install of HP-UX, rather than upgrading. Why? > I think because the differences are so large that trying to upgrade just the bits that need changing is very complex and prone to failure. >Second, if a cold install is performed, then I'm assuming that the current LVM >configuration will be lost, thus we would have to re-create the logical volumes >in the same >sizes and create the appropriate links, then do a full restore of the database. >Is this >correct? If so, it will add many hours to the upgrade process. I'd appreciate >any >comments from people who have performed a similar upgrade. > > Yes, but you can import and export (vgexport/vgimport?) them. I any rengineer upgrade a machine from HP-UX 9.04 to 10.x. and this is what he did (he was a contractor but had access to HP's development labs [they used to let him do beta tests for them] Lucky guy charged 1000 pounds per day back in June 1995!!!). > > >Mark Collins >mcollins@us.dhl.com > >The problem lies in how easily and dangerously we forget that >manipulating things is not the same as understanding them. > -- David Williams