Uninstall Exadata Storage Server cell in VMware test.

Uninstall cell in VMware:

++Find the cell version installed.
rpm -qa|grep cell

++Remove the cell rpm.

rpm -e cell12.1.2.1.0_LINUX.X64_141206.1

++Remove the directories.

rm -rf /opt/oracle
rm -rf /var/log/oracle/*

++ If needed wipe the cell disks.
 dd if=/dev/zero of=/dev/sdb bs=1M

 For all other 16 Disks do the same.