If you just replace the drive, it will probably start the rebuild automatically, but if it doesn't, then you will need OMSA to clear the foreign config and/or assign it as a hot-spare to start the rebuild. "The prvious admin emailed and said I would just need to pop in a new drive and it will rebuild. This sounds too easy." It was designed to be easy, but replace the drive "hot" (do NOT power down to replace it). OMSA (Windows): [URL]  
Hi all, We have a Dell PowerEdge 2950 server with a  raid 5 setup. There are only 3 drives in the set and I need to replace one of the drives which is blinking yellow. I adopted this server from the admin prior. For some reason it does not have the openmanage application installed. Can I just insert the new drive and it will rebuild off the raidset or do I need to install openmanage on the server and config the drive first? Also where is the download for openmanage? Sorry come from an HP hardware. The prvious admin emailed and said I would just need to pop in a new drive and it will rebuild. This sounds too easy.
Replace drive raid 5 on Dell 2950 without openmanage