Dears,,

I installed Red Hat Enterprise Linux on my PC
then installed Oracle on it.

I need to take full backup from Linux and any application installed on it like Oracle.How can take this backup?

Thanks & best regards,,

You could use rsync and rsnapshot to make incremental backups. Look at this tutorial.
It's written for Debian, but the only difference would be the install method of rsync and rsnapshot. Check first, you may already have them installed.

Backup is a deep topic. You need to specify more detail about your objectives. rsync may very well do some of what you want. However, since you mention that you installed Oracle, that is a different issue. You'll probably want to look into the documentation for RMAN. If you are totally unfamiliar with it, you could start with http://www.orafaq.com/wiki/Oracle_da...d_Recovery_FAQ, and then dig into the documentation you have or can find on the Oracle site, for example http://www.oracle.com/technology/dep...R_Overview.htm.

If you want to get into more depth and some of the broader aspects of backup, take a look at http://oreilly.com/catalog/9780596102463/ or the companion web site http://www.backupcentral.com/.

For a complete dump (though if your disk is 230GB and only 100GB is in use, the dump will be 230GB in size..) just use dd- it may be exactly what you need.

cp -a or scp -a maybe a good ideal for you. But you shall skip the /dev and /proc folder.

Read a documentation at www.tldp.org regarding backup of linux.