Array expansion smart array p4101i controller.

Hi,

I have ProLiant DL380 G7 server with smart array p4101i controller.

There is a data drive of 560gb in Array B and a empty 900gb of unallocated disk in Array C.

I need to add the 900gb empty disk to 560gb. 

How do I do it?

can I delete the array C and expand it with Array B?. If I do this, will the existing data in Array B gets deleted?

Thanks,

S.Mani