Once upon a time, Neal Gompa <ngompa13(a)gmail.com> said:
On Sun, Jan 16, 2022 at 6:47 PM Chris Adams <linux(a)cmadams.net>
wrote:
> Once upon a time, Neal Gompa <ngompa13(a)gmail.com> said:
> > It benefits LVM-based OS snapshotting equally well. However, the
> > tooling for LVM snapshots are under-developed, so it's not used so
> > much for this.
>
> How? Since the standard install uses a single root filesystem that
> includes /usr and /var, I can't see any benefit to it there either.
It does *now*, but it's not necessarily desirable to keep it that way
if you want this capability. For Btrfs, shuffling subvolumes is cheap.
For LVM, shuffling LVs is a bit more work.
I know about LVM snapshots - I used them for years to get point-in-time
backups. But that doesn't explain a benefit to splitting /, /usr, and
/var into separate filesystems/LVs/whatever.
--
Chris Adams <linux(a)cmadams.net>