We still have two ancient instances of CiscoSecure ACS v2.4 for Windows NT running on our network. ACS1 (primary) and ACS2 (secondary). I would like to upgrade these, not only because of how old they are but because of an issue trying to replicate the user and group database from ACS1 to ACS2. When trying to replicate the user and group database the logs say it's successful but the databases don't match. ACS2 is missing some of the users that are in ACS1. I have successfully replicated the interface database. But for whatever reason, the user and group database will not replicate.
First, is there any other way I can get the user and group database copied from ACS1 to ACS2? Other than using the built in database replication tool?
Second, is there any way I can get these upgraded? I read that the recommended upgrade path is 2.4->2.6->3.0->3.2. But Cisco no longer has version 2.6 available for download. I really would like to upgrade rather than starting from scratch.
Thanks!