is lvm on top of raid, possible?

Should the following be possible: make a raid-1 with 2 disks, on top of that put lvm and after that create some filesystems in the volume group. I especially wonder about the lvm on top of the raid. I tried to do that with yast, but yast does not seem to be able to do that. I can configure the raid, I can go to create lvm -> but it shows the only the physical devices and not the raid. Is this a limit in yast? Is there a workaround? -- Richard Bos Without a home the journey is endless