What is the best method to add a new hard drive in RHEL 5.4 linux machine? Please go through the following details of linux machine and help me to add one 250 gb hard disk to increase available disk space.
[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/hda3 220G 3.7G 205G 2% /
/dev/hda1 99M 12M 83M 13% /boot
tmpfs 2.0G 0 2.0G 0% /dev/shm