@softraid-support Got it. Will erase the volume.

So I replaced the drive and now this is what I see. It appears the bottom drive needs to be replaced and the new one "yellow", I assume, is rebuilding...

@softraid-support will give it a try this evening

I removed the replacement drive and the volume doesn't mount still. I have no problem redoing the whole thing (equivalent to reformatting a single dri...

@softraid-support Yes, the volume mounted before I replaced the disk. I will remove it today and see what happens.