On Oct 22, 2021, at 13:16, Roger Heflin <rogerheflin(a)gmail.com> wrote:
LVM is also used to make separate LV's such that critical filesystems can have their
own space and be protected against another filesystem filling up (if you only had a single
filesystem).
There are reasons to use it, especially if you don't want filling up a /data only
filesystem to impact the OS.
While you can do this with separate partitions with file systems on them, the advantage of
LVM is that you can resize the volumes and not have to repartition. Root volume running
out of space? Grow it and take the space from your Home volume.
I’ve also used the fact that LVM allows you to seamlessly transfer data to a new disk,
live, when moving to new hardware.
Eventually, I hope btrfs makes LVM obsolete.
—
Jonathan Billings