Detect Raid 5 Drives

[Laptoper]

The first time i installed the Windows Server 2012 to a newly purchased Server, it was working fine. But reading about Servers and Raid 5, I learn about the orange blinking LED that indicates warning about a drive. so i told the supplier, there is a hard drive that needed replacement. So they did provide the replacemend HD. But when i put the new hard drive, the server did not ask to rebuild or what so ever. How will I know if the Raid is working fine after replacement of hard disk?
I searched this one, http://h20464.www2.hp.com/Media/83D684F0-B799-4EE0-BA60-2E72AA3E619B/ratt_fru_sasharddriveledsandledcombinations.htm
from this page, green light on and amber light off means The drive is online, but it is not active currently.
That is the status of LED of the Drive i recently put.

Thanks in advance..

 

[Laptoper]

No one is answering. I'm new to servers. But to help others, what I did was removed the new Hard disk, while the server is On and running, then put back..
I saw that it was blinking differently from other hard disks. I believe, it was rebuilding the disk.
Now, it is good I guess..