Database frozen in time

Oracle 10.2.4
Solaris 10.5 SPARC 64bits
I have a database that I want frozen in time and looking for the best way to accomplish it. It is a very smal database use by software testers in one of our centers.
Here is what I am thinking thus far: I will like to tar up the directory with the database and move it to a third party drive or maybe to the NAS for safe keeping. And maybe if I need it in the future, we could just untar directory and ready to use it. Is this feasible?

Dude wrote:
Flashback database is just a fast and simple way of "rolling" back a database, but it has its limits and can be quite space consuming depending on your flashback retention policy. If you are thinking about long term flashback look into flashback data archive and enable it on appropriate tables. However, I think there is nothing better or superior to a regular RMAN backup strategy and running the database in archivelog mode.I interpreted his request not as a long term flashback, but rather being able to repeatedly roll a non-production db to a particular point. I totally agree with you for production databases, but not so much for testing, those situations have different requirements. Running a test db in archivelog may or may not be desirable, depending on exactly what you are testing and what hardware resources you have available.
For example, I sometimes have to test mass loads of data that isn't as clean as a database needs, so I have to run it maybe ten times. 0 of those times will require being able to recover an interrupted load transactionally, but all of them will require starting from the same place. Why load down everything with archiving or flashback? Sometimes a database update will be so massive it makes sense to take production out of archivelog, do the update, put it back in archivelog, then backup - especially if you have a remote standby, for example, you don't want to flood a shared network for days if you don't have to, must less load to ship a compressed backup.
It's possible his request may have been to test the data as it was at various times in the past, or a long term flashback - that can be quite a project, with tables and apps being modified, not to mention upgrading. There are many situations where a regular RMAN strategy just doesn't make it, it all boils down to proper requirements definition. If RMAN fits, all the better, it does what it does very well nowadays.

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