What is the BEST PRACTISE for backup the Oracle Apps ( DB and APPS) ? I'm asking about the strategy..let's say you have 24*7 system and your DB is ARCHIVE MODE. now ow would you plan your backup? What do you usually do?
Please have a look at the following links for a similar discussion: system backup Apps Backup
It all depends on your configuration/setup, since we have a Data Guard configuration we use Disk-to-Disk-to-Tape Backup using (RMAN/Veritas NetBackup). Datafiles as well as archive files are offloaded to the standyby site to minimize the impact of backup operations on the production system.
We do a full weekly database backup, daily incremental backup, and daily archive logs backup (twice aday), we back up to disk then we do copy to tape.
For the application changes, especially if you have customization the above links should be helpful.