Backup of Directory

Hi,
I need to take a tar backup of a dir on AIX.
Pls let me know the command for the same.

Thanks,
Narayan

tar -cvf /path/to/backup.tar /stuff/to/backup

or

to use relative paths since the AIX tar is not as forgiving with full paths like GNU tar

cd /stuff/to
tar -cvf /path/to/backup.tar backup