They are not the same servers but they have similar setup. Fortunately they are qa and development.
Should have asked previously, are they on the same host machine?
No they are on different physical machines.
Basically, something is corrupting data, just trying to narrow it down to hardware or software. Looking to figure out if the problem(s) follow the physical machine or the software the Postgres is running on.
I would say software because on the same physical machines we had SLES + XEN running for years without any kind of corruption.
I would tend to agree, but one cannot discount the effects of age. Could be that the OS switch happened just prior to some age induced failure in hardware.
Still, do you have a running Postgres instance or have you tried running a Postgres instance on CentOS that is not in a VM?
Thank you for all your insights, it's been very helpful. I think the best strategy is to start testing each component, changing one component at a time...
