[WLUG] Disk mirroring in Linux -- MD-RAID or LVM? Advantages and disadvantages?

Hi all; In Linux I can do software RAID using LVM or with MD (i.e., mdadm) as a basis. I'm currently thinking of a simple mirror of two conventional SATA disks. The machine is being built to do a compute-workload involving examination of many small(ish?) files, and will not be a desktop or a recreational/gaming machine. I don't know anything about the files or how they'll be examined. How would YOU setup a simple mirror in whatever Linux you use? Why do you prefer your selection? Thanks, --MCV.