[CentOS] RAID support in kernel?

Thanks.

I hadn't really looked in any of this for a few years since I used RAID to combine 2 smaller hard drives into one larger volume.  At work, I'm either just a user of a remote server that uses netapp filers for storage, or am running more disposable installs on lower end systems (with 1 hard drive) that can be wiped and reinstalled easily.