raid1 - How does Rebuild in host-raid RAID-1 works?

I am testing a Non-Hardware Raid with 3 1TB Disks.
I create a RAID-1 Array with my first 2 Disks and installed Windows 7 on the Raid disk that i'd created. I unplugged the first disk SATA cable in RAID Array and reboot the system. When i entered the RAID Controller by pressing "Ctrl+I" I get the message which asked me to add the free disk to the array. after i add that disk The Raid Volume status changed to Rebuild. under the Screen there is a yellow message : "Volumes with Rebuild status will be rebuilt within the operating system".

Here are my questions:

1. What does it mean by that message ? does it mean that i just need to boot into my windows and all the Rebuild happens automatically or do I need any kind of software ?


2. How can i monitor how much the Rebuilding process is completed ?

Answer

You are using an Intel Rapid Storage RAID controller. This is not hardware RAID. Like most onboard/motherboard RAID controllers it is host-RAID.

"Volumes with Rebuild status will be rebuilt within the operating system" means exactly that, Rapid Storage relies on a driver within the OS to perform it's work. It is incapable of doing any actual RAID'ing by itself.

Status will be shown using the Intel Rapid Storage console which normally comes bundled with the RAID driver. You're also better off adding/removing/replacing disks using the Windows software and not the very limited BIOS interface.