RE: [Maybe spam] Re: Upgrade AIX and IDS at same time - bad idea?

> -----Original Message----- > From: owner-informix-list@iiug.org [mailto:owner-informix-list@iiug.org] > On Behalf Of dthacker@omnihotels.com > > Olaf Gustafson wrote: > > We're planning on upgrading from AIX 4.3.3 to 5.1 and IDS 7.24 to 9.4 > > over the weekend soon. > > > > Does anyone else think this is a bit risky? > Yes. How many trial updates have you run? > > > > I recall something similar happening where I used to work and it was > a > > real pain trying to figure out which upgrade caused the problem (it > > was HP-UX though - don't remember the versions) > > > > It turned out the problem in that case was a faulty DBA (not me!) - > > left out an index because he also recreated some tables to use fewer > > extents. > > Listen to the chorus. Test the upgrade. Buy, rent or steal some > hardware, set it up to match your current config and then perform the > upgrade and see what happens. Test that you can get back if you have > to revert halfway through. Find all the "faulty DBA" and "negligent > SysAdmin" problems before you start. > If you don't, Monday could be horrible..... > I was unfortunate enough once to upgrade (in-place) to an Informix version where there was a bug in the revert portion of the engine - I could not revert back to the old version ! Spent the entire night at the office, and managed to get a workable engine up for the company. sending to informix-list