1.PURPOSE AND SCOPE
In this article i am going to explation how to add new disk to the diskgroup which used by database.Before starting i wanted to give some informations about our steps. In this practice we had got a disk named DISK4 and this isnt belong to single diskgroup.First of all i am going to check the stability of DISK4, if disk success i am going to create a different diskgroup and try to add it there.If this step also succeed we are going to add this disk to diskgroup which used by production diskgroup.
2.1. Time to control stability of DISK4 . (If you have got RAC env, you need to do this every single node)