Re: Informix/HP-UX upgrade question

Mark Collins wrote: > > 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? > > 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. Make certain that both of those archives are performed in Quiescent Mode or that you get archecker from Advanced Support and verify them before doing that cold install of the OS. ODS 7.10 has the Archive bug (fixed in 7.14 and 7.21) that can lose pages during periods of high update activity. Art S. Kagel