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The nice thing about RMAN is that you do not need different steps for different platforms. A hot backup is as simple (in Oracle 9i and above) as running the following command in RMAN:
backup database;
The above command assumes that you have configured default channels with the CONFIGURE command. To perform a cold backup, you will want to shut down the database, back it up and then start the database. My old RMAN script to perform a cold backup looks like the following:
run {
shutdown immediate
startup mount
allocate channel t1 type 'SBT_TAPE'
backup full format "%d_FULL_%U" (database) ;
sql 'alter database open'; release channel t1; }
In the above, I shut down the database and start it in MOUNT mode. I then allocate a channel and back up the database. Once done, I open the database and release the channel.
My script was originally written for Oracle 8i and I have not used it since that version. Oracle 9i and 10g have newer options (such as specifying default channels) so your script may look a little different.
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