Keep in mind that ArcSDE has three components:
1) The database tables (and configuration, like ST_GEOMETRY library references in the listener)
2) The ArcSDE application server software
3) The ArcSDE client API
If you move 1 and 2 to a new host intact, they will function. In the case of Direct Connect,
where 2 and 3 exist on the client, all you need is the network configuration for the database
(TNSNAMES.ORA in the case of Oracle) to change servers.
You should of course make sure the new host has /etc/hosts and /etc/services compatible
with the old server (part of the "intact" condition), but Unix transfer is very simple (Windows
transfer is only complicated by service creation).
- V