On Thu, 2 Jan 2025, Michael Stone wrote: > On Thu, Jan 02, 2025 at 06:29:08PM +1100, George at Clug wrote: >> LVM was introduced to allow extending storage by adding extra physical >> drives. Storage space is allocated as virtualised storage, i.e. Logical >> Volumes. > > Yes and no. LVM was introduced to allow flexibility in how you assign > space. It lets you add drives, or migrate between drives, or resize a > volume, or make some volumes raid and some volumes not, all on the fly. > If you use something like btrfs or zfs, then you probably don't want to > add an LVM layer as it just complicates things in a redundant fashion. > If you have a set number of drives and partition the whole thing up as a > single volume, then LVM may not be worth the effort. If you have a > relatively dynamic environment, LVM is a big timesaver. > > It can be somewhat complicated, and there are some gotchas in > configuring things like raid, so for someone trying to put together an > ordinary desktop that would be happy with one big partition and isn't > likely to do an upgrade that isn't a full replacement, I probably > wouldn't bother. >
i managed a half dozen hp9000 servers with 200 2gb drives lvm came in pretty handy :)
