Backup - do i need to keep ibdata1?

Hi guys, got a quick question:

I have a Master - Slave setup running. I’d like to copy the backed up files to offsite backups. Do i need to keep ibdata1?

I am taking a backup off of the slave:

$>innobackupex-1.5.1 --slave-info --user=root --password=XX --databases=“db1” .

Then I am running:
$> innobackupex-1.5.1 --apply-log 2011-03-02_14-20-10

After doing this, am i free to delete ibdata1???

ibdata1 is about 1 gig in size, the database directory: 2011-03-02_14-20-10/db1 is only around 12 meg.

Is it safe to just delete the ibdata1 file?

will everything i need be in 2011-03-02_14-20-10/db1 directory?

Thanks in advance :slight_smile: