Re: Informix/HP-UX upgrade question

Mark, I did. When I took a client from 9.0x to 10.01 the upgrade path was a bit bumpy. There are a couple of extraneous things left on the system, and the performance was not up to par. In a training exercise, I had a junior employee bounce the system and rebuild from scratch. The amount of disk space available improved, since HP did move a few things around and since we didn't have 9.x, we didn't need them. So, it was a cleaner install. My HP712 at home died. (Fatal Disk Crash.) While under warranty, I got the new disk, and decided to do a rebuild. System was a bit faster. While the 9.x -> 10.x upgrade path exists, it will work. But the re-install is even better. There are other hints you can do too. Another reason for a re-install, is that it is most likely that your system has changed, and you may want to consider reallocating resources. -HTH mikey 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. > > > > 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.