I'd like to make sure I'm taking away the right thing from this conversation. It seems we have high-level recommendations _not_ to use LVM RAID1. Not just over MD, simply don't use it at all. Do I get that right?
On Mon, Dec 5, 2016 at 4:25 AM, Jonathan Dowland <j...@debian.org> wrote: > On Sat, Dec 03, 2016 at 07:39:37PM +0100, Kamil Jońca wrote: > > So far I used lvm with raid1 device as PV. > > > > Recently I have to extend my VG > > (https://lists.debian.org/debian-user/2016/11/msg00909.html) > > > > and I read some about lvm. > > If I understand correctly, LVM have builtin RAID1 functionality. > > And I wonder about migrating > > lvm over md --> (lvm with raid1) over physical hard drive partitions. > > > > > > Any cons? > > MD is older, has had more development and is generally considered to be > more robust. I would always choose to do RAID with MD, directly on the > disks, and put LVM on top of the MD virtual block devices. > > -- > Jonathan Dowland > Please do not CC me, I am subscribed to the list. >
