> Because at some point I decided LVM is just like flexible partitions and didn't pay much attention to the huge amounts of other stuff in the manpages.
I remember when I was first learning to use Linux, I was mystified by the convention of LVM on top of md. I was reading the LVM man pages and it was clear I could just do all that stuff with LVM without having to involve another abstraction layer.
But I had a hardware raid controller and just used that instead.
It depends on when you started, LVM changed a fair amount over time and the earlier versions had less functionality.
So a lot of people would do like I did -- make an initial decision and then stick with it for two decades, way past of it making any sense. That kind of thing also happens with documentation.
I remember when I was first learning to use Linux, I was mystified by the convention of LVM on top of md. I was reading the LVM man pages and it was clear I could just do all that stuff with LVM without having to involve another abstraction layer.
But I had a hardware raid controller and just used that instead.