Im new to this server stuff and , i have a server with SUSE Linux 10.1 on it with Raid 1 hard drives , i want to replace one of the raid drives but don't really know if i remove the drive and attach a new one will it automatically build the new drive , how can i know about this , and how to proceed with this process , any help, links to tutorials will be greatly appreciated. Thanx in advance.
Are you using mdadm?
You need to replace it (you need to 'fail' it first to do that), and remove it, and then add a new drive to the remaining part of the array. It will rebuild it itself.
Link <- see steps 3 and 4, and 5 to see if it's rebuilding and when it's done
If you're using anything else (hardware raid controller (card)), consult the proper documentation for that.